Auto-merging via docker-versions-create

#1031

.circleci/config.yml

@@ -1,17 +0,0 @@
-version: 2
-jobs:
-  minecraft_server:
-    docker:
-      - image: circleci/buildpack-deps:19.10
-    steps:
-      - checkout
-      - setup_remote_docker
-      - run:
-          name: Build image
-          command: docker build -t mc:$CIRCLE_BUILD_NUM .
-
-workflows:
-  version: 2
-  build:
-    jobs:
-      - minecraft_server

.dockerignore

@@ -1,4 +1,6 @@
 data
+testdata
 examples
 k8s-examples
-.idea
+.idea
+.git

.editorconfig

@@ -1,2 +1,4 @@
 [start-*]
-indent_size = 2
+indent_size = 2
+indent_style = space
+end_of_line = lf

.github/FUNDING.yml

@@ -0,0 +1,5 @@
+
+#github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+custom:
+  - https://www.buymeacoffee.com/itzg
+  - https://paypal.me/itzg

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/build-multiarch.yml

@@ -0,0 +1,87 @@
+name: Build and publish multiarch
+on:
+  push:
+    branches:
+      - master
+      - "*-multiarch"
+      - "multiarch*"
+      - java8-openj9
+      - java11*
+      - java16*
+      - test/*
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+      - "[0-9]+.[0-9]+.[0-9]+-multiarch*"
+      - "[0-9]+.[0-9]+.[0-9]+-*multiarch"
+      - "[0-9]+.[0-9]+.[0-9]+-java8-openj9"
+      - "[0-9]+.[0-9]+.[0-9]+-java11*"
+      - "[0-9]+.[0-9]+.[0-9]+-java16*"
+    paths-ignore:
+      - "*.md"
+      - "docs/**"
+      - "examples/**"
+
+jobs:
+  docker-buildx:
+    if: github.repository == 'itzg/docker-minecraft-server'
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2.3.4
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            itzg/minecraft-server
+          tags: |
+            type=ref,event=branch
+            type=ref,event=tag
+          flavor: |
+            latest=${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2.1.6
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1.2.0
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2.7.0
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm/v7,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          # ensure latest base image is used
+          pull: true
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}
+
+      - # Temp fix
+        # https://github.com/docker/build-push-action/issues/252
+        # https://github.com/moby/buildkit/issues/1896
+        name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

.github/workflows/generate-toc.yml

@@ -0,0 +1,21 @@
+name: Generate README table of contents
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - README.md
+jobs:
+  generate:
+    if: github.repository == 'itzg/docker-minecraft-server'
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v2.3.4
+      - run: |
+          curl https://raw.githubusercontent.com/ekalinin/github-markdown-toc/master/gh-md-toc -o gh-md-toc
+          chmod a+x gh-md-toc
+          ./gh-md-toc --insert --no-backup README.md
+      - uses: stefanzweifel/git-auto-commit-action@v4.12.0
+        with:
+          commit_message: "docs: Auto update markdown TOC"

.github/workflows/main.yml

@@ -0,0 +1,100 @@
+name: Build and Publish
+
+on:
+  push:
+    branches:
+      - java8
+      - openj9
+      - openj9-11
+      - adopt11
+      - test/alpine/*
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+-java8"
+      - "[0-9]+.[0-9]+.[0-9]+-openj9"
+      - "[0-9]+.[0-9]+.[0-9]+-openj9-11"
+      - "[0-9]+.[0-9]+.[0-9]+-openj9-nightly"
+      - "[0-9]+.[0-9]+.[0-9]+-adopt11"
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v2.3.4
+
+      - name: Run tests
+        run: |
+          tests/test.sh
+  build:
+    needs:
+      - test
+    runs-on: ubuntu-20.04
+
+    steps:
+    - uses: actions/checkout@v2.3.4
+
+    - name: Prepare
+      id: prep
+      run: |
+        DOCKER_IMAGE=itzg/minecraft-server
+        VERSION=edge
+        if [[ $GITHUB_REF == refs/tags/* ]]; then
+          VERSION=${GITHUB_REF#refs/tags/}
+        fi
+        if [[ $GITHUB_REF == refs/heads/* ]]; then
+          VERSION=${GITHUB_REF#refs/heads/}
+          if [[ $VERSION == master ]]; then
+            VERSION=latest
+          fi
+        fi
+        TAGS="${DOCKER_IMAGE}:${VERSION//\//-}"
+        echo ::set-output name=tags::${TAGS}
+        echo ::set-output name=version::${VERSION//\//-}
+
+    - name: Setup Docker Buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Cache Docker layers
+      uses: actions/cache@v2.1.6
+      with:
+        path: /tmp/.buildx-cache
+        key: ${{ runner.os }}-buildx-${{ github.sha }}
+        restore-keys: |
+          ${{ runner.os }}-buildx-
+
+    - name: Login to DockerHub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKER_USER }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - name: Build and push
+      id: docker_build
+      uses: docker/build-push-action@v2.7.0
+      with:
+        context: .
+        file: ./Dockerfile
+        # ensure latest base image is used
+        pull: true
+        # publish
+        push: true
+        # tags determined by prep step
+        tags: ${{ steps.prep.outputs.tags }}
+        cache-from: type=local,src=/tmp/.buildx-cache
+        cache-to: type=local,dest=/tmp/.buildx-cache-new
+        labels: |
+          org.opencontainers.image.documentation=https://github.com/itzg/docker-minecraft-server
+          org.opencontainers.image.version=${{ steps.prep.outputs.version }}
+          org.opencontainers.image.source=https://github.com/itzg/docker-minecraft-server
+          org.opencontainers.image.revision=${{ github.sha }}
+
+    - name: Image digest
+      run: echo ${{ steps.docker_build.outputs.digest }}
+
+    - # Temp fix
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      name: Move cache
+      run: |
+        rm -rf /tmp/.buildx-cache
+        mv /tmp/.buildx-cache-new /tmp/.buildx-cache

.github/workflows/pr.yml

@@ -0,0 +1,16 @@
+name: Validate PR
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2.3.4
+
+      - name: Run tests
+        run: |
+          tests/test.sh

.gitignore

@@ -1,3 +1,4 @@
 /data/
 /.idea/
-*.iml
+*.iml
+/gh-md-toc

BUILDING.md

@@ -0,0 +1,11 @@
+Ensure buildx/BuildKit support is enabled and run:
+
+```shell script
+docker buildx build --platform=linux/arm64 --platform=linux/arm/v7 --platform=linux/amd64 --tag itzg/minecraft-server:multiarch --push .
+```
+
+To build for local testing, use:
+
+```shell script
+docker buildx build --platform=linux/amd64 --tag mc-multiarch --load .
+```

DEVELOPMENT.md

@@ -0,0 +1,74 @@
+## Adding a server type
+
+Adding a new server `TYPE` can vary due to the complexity of obtaining and configuring each type; however, the addition of any server type includes at least the following steps:
+
+1. Copy an existing "start-deploy*" script, such as [start-deployMohist](start-deployMohist) and rename it accordingly making sure to retain the "start-deploy" prefix
+2. Modify the type-specific behavior between the "start-utils" preamble and the hand-off to `start-setupWorld` at the end of the script 
+3. Develop and test the changes using the [iterative process described below](#iterative-script-development)
+4. Add a case-entry to the `case "${TYPE^^}"` in [start-configuration](start-configuration)
+5. Add a section to the [README](README.md). It is recommended to copy-modify an existing section to retain a similar wording and level of detail
+6. [Submit a pull request](https://github.com/itzg/docker-minecraft-server/pulls)
+
+## Iterative script development
+
+Individual scripts can be iteratively developed, debugged, and tested using the following procedure.
+
+First, build a baseline of the image to include the packages needed by existing or new scripts:
+
+```shell script
+docker build -t mc-dev .
+```
+
+Using the baseline image, an interactive container can be started to iteratively run the scripts to be developed. By attaching the current workspace directory, you can use the local editor of your choice to iteratively modify scripts while using the container to run them.
+
+```shell script
+docker run -it --rm -v ${PWD}:/scripts -e SCRIPTS=/scripts/ --entrypoint bash mc-dev
+```
+
+From within the container you can run individual scripts via the attached `/scripts/` path; however, be sure to set any environment variables expected by the scripts by either `export`ing them manually:
+
+```shell script
+export VANILLA_VERSION=1.12.2
+/scripts/start-magma
+```
+
+...or pre-pending script execution:
+
+```shell script
+VANILLA_VERSION=1.12.2 /scripts/start-magma
+```
+
+> NOTE: You may want to temporarily add an `exit` statement near the end of your script to isolate execution to just the script you're developing.
+
+## Multi-base-image variants
+
+Several base-image variants are maintained in order to offer choices in JDK provider and version. The variants are maintained in their respective branches:
+- openj9 
+- openj9-nightly
+- adopt11
+- adopt13
+- multiarch
+
+The [docker-versions-create.sh](docker-versions-create.sh) script is configured with the branches to maintain and is used to merge changes from the master branch into the mulit-base variant branches. The script also manages git tagging the master branch along with the merged branches. So a typical use of the script would be like:
+
+```shell script
+./docker-versions-create.sh -s -t 1.2.0
+```
+
+> Most often the major version will be bumped unless a bug or hotfix needs to be published in which case the patch version should be incremented.
+
+> The build and publishing of those branches and their tags is currently performed within Docker Hub.
+
+## multiarch support
+
+The [multiarch branch](https://github.com/itzg/docker-minecraft-server/tree/multiarch) supports running the image on amd64, arm64, and armv7 (aka RaspberryPi). Unlike the mainline branches, it is based on Ubuntu 18.04 since the openjdk package provided by Ubuntu includes full JIT support on all of the processor types.
+
+The multiarch images are built and published by [a Github action](https://github.com/itzg/docker-minecraft-server/actions?query=workflow%3A%22Build+and+publish+multiarch%22), which [is configured in that branch](https://github.com/itzg/docker-minecraft-server/blob/multiarch/.github/workflows/build-multiarch.yml).
+
+## Generating release notes
+
+The following git command can be used to provide the bulk of release notes content:
+
+```shell script
+git log --invert-grep --grep "^ci:" --grep "^misc:" --grep "^docs:" --grep "^build(deps)" --pretty="- %s" 1.1.0..1.2.0
+```

Dockerfile

@@ -1,68 +1,92 @@
 FROM openjdk:8u212-jre-alpine
 
-LABEL maintainer "itzg"
+LABEL org.opencontainers.image.authors="Geoff Bourne <itzgeoff@gmail.com>"
 
 RUN apk add --no-cache -U \
-  openssl \
-  imagemagick \
-  lsof \
-  su-exec \
-  shadow \
-  bash \
-  curl iputils wget \
-  git \
-  jq \
-  mysql-client \
-  tzdata \
-  rsync \
-  nano \
-  python python-dev py2-pip
-
-RUN pip install mcstatus yq
-
-HEALTHCHECK CMD mcstatus localhost:$SERVER_PORT ping
+    openssl \
+    imagemagick \
+    lsof \
+    su-exec \
+    shadow \
+    bash \
+    curl iputils wget \
+    git \
+    jq \
+    mysql-client \
+    tzdata \
+    rsync \
+    nano \
+    sudo \
+    knock \
+    ttf-dejavu
 
 RUN addgroup -g 1000 minecraft \
   && adduser -Ss /bin/false -u 1000 -G minecraft -h /home/minecraft minecraft \
-  && mkdir -m 777 /data /mods /config /plugins \
-  && chown minecraft:minecraft /data /config /mods /plugins /home/minecraft
+  && mkdir -m 777 /data \
+  && chown minecraft:minecraft /data /home/minecraft
+
+COPY files/sudoers* /etc/sudoers.d
 
 EXPOSE 25565 25575
 
-RUN echo 'hosts: files dns' > /etc/nsswitch.conf
+# hook into docker BuildKit --platform support
+# see https://docs.docker.com/engine/reference/builder/#automatic-platform-args-in-the-global-scope
+ARG TARGETOS=linux
+ARG TARGETARCH=amd64
+ARG TARGETVARIANT=""
 
-ARG RESTIFY_VER=1.1.6
-ARG RCON_CLI_VER=1.4.6
-ARG MC_SERVER_RUNNER_VER=1.3.2
-ARG ARCH=amd64
+ARG EASY_ADD_VER=0.7.1
+ADD https://github.com/itzg/easy-add/releases/download/${EASY_ADD_VER}/easy-add_${TARGETOS}_${TARGETARCH}${TARGETVARIANT} /usr/bin/easy-add
+RUN chmod +x /usr/bin/easy-add
 
-ADD https://github.com/itzg/restify/releases/download/${RESTIFY_VER}/restify_${RESTIFY_VER}_linux_${ARCH}.tar.gz /tmp/restify.tgz
-RUN tar -x -C /usr/local/bin -f /tmp/restify.tgz restify && \
-  rm /tmp/restify.tgz
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+  --var version=1.2.0 --var app=restify --file {{.app}} \
+  --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ADD https://github.com/itzg/rcon-cli/releases/download/${RCON_CLI_VER}/rcon-cli_${RCON_CLI_VER}_linux_${ARCH}.tar.gz /tmp/rcon-cli.tgz
-RUN tar -x -C /usr/local/bin -f /tmp/rcon-cli.tgz rcon-cli && \
-  rm /tmp/rcon-cli.tgz
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+ --var version=1.5.1 --var app=rcon-cli --file {{.app}} \
+ --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ADD https://github.com/itzg/mc-server-runner/releases/download/${MC_SERVER_RUNNER_VER}/mc-server-runner_${MC_SERVER_RUNNER_VER}_linux_${ARCH}.tar.gz /tmp/mc-server-runner.tgz
-RUN tar -x -C /usr/local/bin -f /tmp/mc-server-runner.tgz mc-server-runner && \
-  rm /tmp/mc-server-runner.tgz
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+ --var version=0.10.1 --var app=mc-monitor --file {{.app}} \
+ --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-COPY mcadmin.jq /usr/share
-RUN chmod +x /usr/local/bin/*
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+ --var version=1.8.0 --var app=mc-server-runner --file {{.app}} \
+ --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-VOLUME ["/data","/mods","/config"]
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+ --var version=0.1.1 --var app=maven-metadata-release --file {{.app}} \
+ --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
+
+ARG MC_HELPER_VERSION=1.6.1
+RUN curl -fsSL https://github.com/itzg/mc-image-helper/releases/download/v${MC_HELPER_VERSION}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
+    | tar -C /usr/share -zxf - \
+    && ln -s /usr/share/mc-image-helper-${MC_HELPER_VERSION}/bin/mc-image-helper /usr/bin
+
+VOLUME ["/data"]
 COPY server.properties /tmp/server.properties
+COPY log4j2.xml /tmp/log4j2.xml
 WORKDIR /data
 
-ENTRYPOINT [ "/start" ]
+STOPSIGNAL SIGTERM
 
 ENV UID=1000 GID=1000 \
   JVM_XX_OPTS="-XX:+UseG1GC" MEMORY="1G" \
-  TYPE=VANILLA VERSION=LATEST FORGEVERSION=RECOMMENDED SPONGEBRANCH=STABLE SPONGEVERSION= FABRICVERSION=LATEST LEVEL=world \
-  PVP=true DIFFICULTY=easy ENABLE_RCON=true RCON_PORT=25575 RCON_PASSWORD=minecraft \
-  LEVEL_TYPE=DEFAULT GENERATOR_SETTINGS= WORLD= MODPACK= MODS= SERVER_PORT=25565 ONLINE_MODE=TRUE CONSOLE=true SERVER_NAME="Dedicated Server" \
-  REPLACE_ENV_VARIABLES="FALSE" ENV_VARIABLE_PREFIX="CFG_"
+  TYPE=VANILLA VERSION=LATEST \
+  ENABLE_RCON=true RCON_PORT=25575 RCON_PASSWORD=minecraft \
+  SERVER_PORT=25565 ONLINE_MODE=TRUE SERVER_NAME="Dedicated Server" \
+  ENABLE_AUTOPAUSE=false AUTOPAUSE_TIMEOUT_EST=3600 AUTOPAUSE_TIMEOUT_KN=120 AUTOPAUSE_TIMEOUT_INIT=600 \
+  AUTOPAUSE_PERIOD=10 AUTOPAUSE_KNOCK_INTERFACE=eth0
 
 COPY start* /
-RUN dos2unix /start* && chmod +x /start*
+COPY bin/ /usr/local/bin/
+COPY bin/mc-health /health.sh
+
+ADD files/autopause /autopause
+
+RUN dos2unix /start* && chmod +x /start* \
+    && dos2unix /autopause/* && chmod +x /autopause/*.sh
+
+ENTRYPOINT [ "/start" ]
+HEALTHCHECK --start-period=1m CMD mc-health

bin/mc-health

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# shellcheck source=../start-utils
+. ${SCRIPTS:-/}start-utils
+
+if isTrue "${DISABLE_HEALTHCHECK}"; then
+  echo "Healthcheck disabled"
+  exit 0
+elif isTrue "${ENABLE_AUTOPAUSE}" && [[ "$( ps -ax -o stat,comm | grep 'java' | awk '{ print $1 }')" =~ ^T.*$ ]]; then
+  echo "Java process suspended by Autopause function"
+  exit 0
+else
+  mc-monitor status --host localhost --port $SERVER_PORT
+  exit $?
+fi

bin/mc-send-to-console

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+: "${CONSOLE_IN_NAMED_PIPE:=/tmp/minecraft-console-in}"
+
+if [ $# = 0 ]; then
+  echo "ERROR: pass console commands as arguments"
+  exit 1
+fi
+
+if [ ! -p "${CONSOLE_IN_NAMED_PIPE}" ]; then
+  echo "ERROR: named pipe ${CONSOLE_IN_NAMED_PIPE} is missing"
+  exit 1
+fi
+
+echo "$@" > "${CONSOLE_IN_NAMED_PIPE:-/tmp/minecraft-console-in}"

bin/mcstatus

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+echo "WARNING: mcstatus is deprecated; calling mc-monitor instead"
+
+##### mcstatus shim for mc-monitor
+# handles translating calls to
+#   mcstatus (host:port) (command)
+# where the actual command is ignore, but is typically ping or status
+
+addr="$1"
+
+IFS=':'
+read -a parts <<< "${addr}"
+if [[ ${#parts[*]} -gt 1 ]]; then
+  exec mc-monitor status --host ${parts[0]} --port ${parts[1]}
+else
+  exec mc-monitor status --host ${parts[0]}
+fi

development/update-multiarch.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-manifest="itzg/minecraft-server:multiarch"
-
-for t in latest rpi3 aarch64; do
-    docker pull itzg/minecraft-server:$t
-done
-
-docker manifest create --amend ${manifest} \
-  itzg/minecraft-server:aarch64 \
-  itzg/minecraft-server:latest \
-  itzg/minecraft-server:rpi3
-
-docker manifest annotate --os linux --arch amd64 ${manifest} itzg/minecraft-server:latest
-docker manifest annotate --os linux --arch arm64 ${manifest} itzg/minecraft-server:aarch64
-docker manifest annotate --os linux --arch arm --variant v7 ${manifest} itzg/minecraft-server:rpi3
-
-docker manifest push ${manifest}

docker-compose.yml

@@ -10,19 +10,7 @@ services:
       - "mc:/data"
     environment:
       EULA: "TRUE"
-      CONSOLE: "false"
-      ENABLE_RCON: "true"
-      RCON_PASSWORD: "testing"
-      RCON_PORT: 28016
     restart: always
-  rcon:
-    image: itzg/rcon
-    ports:
-      - "4326:4326"
-      - "4327:4327"
-    volumes:
-      - "rcon:/opt/rcon-web-admin/db"
 
 volumes:
-  mc:
-  rcon:
+  mc: {}

docker-versions-create.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+#set -x
+# Use this variable to indicate a list of branches that docker hub is watching
+branches_list=(
+  'java8'
+  'java8-multiarch'
+  'java8-openj9'
+  'java11'
+  'java11-openj9'
+  'java16'
+  'java16-openj9'
+  'multiarch-latest'
+  )
+
+function TrapExit {
+  echo "Checking out back in master"
+  git checkout master
+}
+
+batchMode=false
+
+while getopts "hbt:s" arg
+do
+  case $arg in
+    b)
+      batchMode=true
+      ;;
+    t)
+      tag=${OPTARG}
+      ;;
+    s)
+      tagArgs="-s -m 'Signed during docker-versions-create"
+      ;;
+    h)
+      echo "
+Usage $0 [options]
+
+Options:
+  -b      enable batch mode, which avoids interactive prompts and causes script to fail immediately
+          when any merge fails
+  -t TAG  tag and push the current revision on master with the given tag
+          and apply respective tags to each branch
+  -s      enable signed tags
+  -h      display this help and exit
+"
+      exit
+      ;;
+    *)
+      echo "Unsupported arg $arg"
+      exit 2
+      ;;
+  esac
+done
+
+${batchMode} && echo "Using batch mode"
+
+trap TrapExit EXIT SIGTERM
+
+test -d ./.git || { echo ".git folder was not found. Please start this script from root directory of the project!";
+  exit 1; }
+
+# Making sure we are in master
+git checkout master
+git pull --all || { echo "Can't pull the repo!"; \
+  exit 1; }
+if [[ $tag ]]; then
+  git tag $tag
+  git push origin $tag
+fi
+
+git_branches=$(git branch -a)
+
+for branch in "${branches_list[@]}"; do
+  if [[ "$git_branches" != *"$branch"* ]]; then
+    echo "Can't update $branch because I can't find it in the list of branches."
+    exit 1
+  else
+    echo "Branch $branch found. Working with it."
+    git checkout "$branch" || { echo "Can't checkout into the branch. Don't know the cause."; \
+      exit 1; }
+    proceed='False'
+    while [[ "$proceed" == "False" ]]; do
+      # Ensure local branch is aligned with remote since docker-versions-create may have been run elsewhere
+      git pull
+
+      if git merge -m 'Auto-merging via docker-versions-create' master; then
+        proceed="True"
+        echo "Branch $branch updated to current master successfully"
+        # pushing changes to remote for this branch
+        git commit -m "Auto merge branch with master" -a
+        # push may fail if remote doesn't have this branch yet. In this case - sending branch
+        git push || git push -u origin "$branch" || { echo "Can't push changes to the origin."; exit 1; }
+        if [[ $tag ]]; then
+          git tag "$tag-$branch"
+          git push origin "$tag-$branch"
+        fi
+      elif ${batchMode}; then
+        status=$?
+        echo "Git merge failed in batch mode"
+        exit ${status}
+        # and trap exit gets us back to master
+      else
+        cat<<EOL
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+Master merge in the branch $branch encountered an error!
+You may try to fix the error and merge again. (Commit changes)
+Or skip this branch merge completely.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+EOL
+        printf "Should we try again? (y):"
+        read -r answer
+        if [[ "$answer" == '' ]] || [[ "$answer" == 'y' ]] || [[ "$answer" == 'Y' ]]; then
+          # If you use non-local editor or files are changed in repo
+          cat <<EOL
+
+The following commands may encounter an error!
+This is completely fine if the changes were made locally and remote branch doesn't know about them.
+
+EOL
+          # Updating branch from remote before trying again
+          git checkout master
+          git fetch --all
+          git pull -a
+          git checkout "$branch"
+          continue
+        else
+          break
+        fi
+      fi
+    done
+  fi
+
+done

examples/README.md

@@ -0,0 +1,3 @@
+# Deployment Examples
+
+This directory contains various deployment examples of the [itzg/minecraft-server](https://hub.docker.com/r/itzg/minecraft-server/) Docker image.

examples/ToF-build/Dockerfile

@@ -1,3 +0,0 @@
-FROM itzg/minecraft-server
-
-ENV TYPE=SPIGOT

examples/ToF-build/plugins.yml

@@ -1,13 +0,0 @@
-plugins:
-  worldedit:
-    file: WorldEdit.jar
-    url: https://dev.bukkit.org/projects/worldedit/files/latest
-  FastAsyncWorldEdit:
-    file: FastAsyncWorldEdit.jar
-    url: https://empcraft.com/fawe/latest.php?bukkit
-  worldguard:
-    file: WorldGuard.jar
-    url: https://dev.bukkit.org/projects/worldguard/files/latest
-  citizens:
-    file: Citizens.jar
-    url: https://dev.bukkit.org/projects/citizens/files/latest

examples/docker-compose-autopause.yml

@@ -0,0 +1,21 @@
+version: '3.8'
+
+services:
+  minecraft:
+    image: itzg/minecraft-server
+    ports:
+      - "25565:25565"
+    volumes:
+      - "mc:/data"
+    environment:
+      EULA: "TRUE"
+      ENABLE_AUTOPAUSE: "TRUE"
+      OVERRIDE_SERVER_PROPERTIES: "TRUE"
+      MAX_TICK_TIME: "-1"
+      # More aggressive settings for demo purposes
+      AUTOPAUSE_TIMEOUT_INIT: "30"
+      AUTOPAUSE_TIMEOUT_EST: "10"
+    restart: unless-stopped
+
+volumes:
+  mc: {}

examples/docker-compose-big.yml

@@ -1,4 +1,4 @@
-version: '3'
+version: '3.8'
 
 services:
   minecraft:

examples/docker-compose-curseforge.yml

@@ -1,11 +1,13 @@
-version: '3.2'
+version: '3.8'
 
 services:
   mc:
-    image: itzg/minecraft-server
+    image: itzg/minecraft-server:java8
+    volumes:
+    - ./modpacks:/modpacks:ro
     environment:
       EULA: "true"
-      TYPE: FTB
-      FTB_SERVER_MOD: https://minecraft.curseforge.com/projects/all-the-mods-expert-remastered/files/2493900/download
+      TYPE: CURSEFORGE
+      CF_SERVER_MOD: /modpacks/SkyFactory_4_Server_4.1.0.zip
     ports:
       - 25565:25565

examples/docker-compose-fabric.yml

@@ -0,0 +1,15 @@
+version: "3"
+
+services:
+  mc:
+    image: ${IMAGE:-itzg/minecraft-server}
+    environment:
+      EULA: "true"
+      TYPE: FABRIC
+    ports:
+      - 25565:25565
+    volumes:
+      - fabric:/data
+
+volumes:
+  fabric: {}

examples/docker-compose-forge.yml

@@ -0,0 +1,23 @@
+version: "3.8"
+
+services:
+  mc:
+    image: itzg/minecraft-server:java8
+    ports:
+    # expose the Minecraft server port outside of container
+    - 25565:25565
+    environment:
+      # REQUIRED for all types
+      EULA: "TRUE"
+      # Set server type (vs the default of vanilla)
+      TYPE: FORGE
+    volumes:
+    # use a named, managed volume for data volume
+    - mc_forge:/data
+    # attach local host directory "mods" in same directory as this compose file
+    # all mods in this directory get copied into /data/mods at startup
+    - ./mods:/mods:ro
+
+volumes:
+  # declared the named volume, but use default/local storage engine
+  mc_forge: {}

examples/docker-compose-ftb.yml

@@ -1,16 +0,0 @@
-version: '3.2'
-
-services:
-  mc:
-    image: itzg/minecraft-server
-    environment:
-      EULA: "true"
-      TYPE: FTB
-      FTB_SERVER_MOD: https://www.feed-the-beast.com/projects/ftb-presents-skyfactory-3/files/2481284
-    ports:
-      - 25565:25565
-    volumes:
-      - mc-ftb:/data
-
-volumes:
-  mc-ftb:

examples/docker-compose-ftba.yml

@@ -0,0 +1,23 @@
+version: "3.8"
+
+services:
+  mc:
+    # FTBA support is only available in non-Alpine images
+    image: itzg/minecraft-server:java8-multiarch
+    ports:
+      # expose the Minecraft server port outside of container
+      - 25565:25565
+    environment:
+      # REQUIRED for all types
+      EULA: "TRUE"
+      # Set server type (vs the default of vanilla)
+      TYPE: FTBA
+      # Use Pack ID from https://ftb.neptunepowered.org/pack/ftb-presents-direwolf20-1-12/
+      FTB_MODPACK_ID: "31"
+    volumes:
+      # use a named, managed volume for data volume
+      - mc_ftb:/data
+
+volumes:
+  # declared the named volume, but use default/local storage engine
+  mc_ftb: {}

examples/docker-compose-paper.yml

@@ -1,4 +1,4 @@
-version: '3.7'
+version: '3.8'
 
 services:
   mc:
@@ -7,11 +7,12 @@ services:
       EULA: "true"
       TYPE: PAPER
       VERSION: 1.9.4
-    command: --noconsole
+      # needed for Paper versions before 1.14
+      CONSOLE: "false"
     ports:
       - 25565:25565
     volumes:
       - mc-paper:/data
 
 volumes:
-  mc-paper:
+  mc-paper:

examples/docker-compose-proxied.yml

@@ -1,4 +1,4 @@
-version: '3'
+version: '3.8'
 
 services:
   mc:

examples/docker-compose-rlcraft.yml

@@ -0,0 +1,27 @@
+version: '3.8'
+
+services:
+  rlcraft:
+    image: itzg/minecraft-server:java8
+    container_name: rlcraft
+    volumes:
+    - rlcraft-modpack:/modpacks:ro
+    - rlcraft-data:/data
+    environment:
+      EULA: "true"
+      TYPE: "FORGE"
+      VERSION: "1.12.2"
+      FORGEVERSION: "14.23.5.2855"
+      DIFFICULTY: "hard"
+      MAX_TICK_TIME: "-1"
+      VIEW_DISTANCE: "6"
+      ALLOW_FLIGHT: "true"
+      MEMORY: "4G"
+      GENERIC_PACK: "/modpacks/RLCraft_Server_Pack_1.12.2_Beta_v2.8.2.zip"
+    ports:
+      - 25565:25565
+    restart: unless-stopped
+
+volumes:
+  rlcraft-data:
+  rlcraft-modpack:

examples/docker-compose-simple.yml

@@ -0,0 +1,12 @@
+version: "3.8"
+
+services:
+  mc:
+    image: itzg/minecraft-server
+    ports:
+      - 25565:25565
+    environment:
+      EULA: "TRUE"
+    volumes:
+      # attach the relative directory 'data' to the container's /data path
+      - ./data:/data

examples/docker-compose-spiget.yml

@@ -0,0 +1,17 @@
+version: "3"
+
+services:
+  mc:
+    # Only using IMAGE variable to allow for local testing
+    image: ${IMAGE:-itzg/minecraft-server}
+    ports:
+      - 25565:25565
+    environment:
+      EULA: "TRUE"
+      TYPE: SPIGOT
+      SPIGET_RESOURCES: 9089,34315,3836
+    volumes:
+      - data:/data
+
+volumes:
+  data: {}

examples/docker-compose-spongeforge.yml

@@ -1,11 +1,11 @@
-version: '3'
+version: '3.8'
 # Forge with Sponge API support. THIS REQUIRES DOWNLOADING SPONGEFORGE.
 # Place the SpongeForge jar file in /data/mods. Other Forge mods go here as well.
 # Place Sponge mods in /data/mods/plugins. Yes, this is a directory inside the Forge mod directory. Do NOT use /data/plugins.
 
 services:
   minecraft:
-    image: itzg/minecraft-server
+    image: itzg/minecraft-server:java8
     ports:
       - "25565:25565"
     volumes:

examples/docker-compose-world-download.yml

@@ -0,0 +1,11 @@
+version: "3.8"
+
+services:
+  mc:
+    image: itzg/minecraft-server
+    ports:
+      - 25565:25565
+    environment:
+      EULA: "TRUE"
+      VERSION: 1.7.2
+      WORLD: https://www.minecraftmaps.com/survival-maps/cube-survival/download

examples/k8s/using-statefulset.yml

@@ -0,0 +1,50 @@
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  labels:
+    app: example
+  name: example
+spec:
+  replicas: 1
+  serviceName: example
+  selector:
+    matchLabels:
+      app: example
+  template:
+    metadata:
+      labels:
+        app: example
+    spec:
+      containers:
+        - name: mc
+          image: itzg/minecraft-server
+          env:
+            - name: EULA
+              value: "TRUE"
+          volumeMounts:
+            - mountPath: /data
+              name: data
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes:
+          - ReadWriteOnce
+        resources:
+          requests:
+            storage: 1Gi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    service: example
+  name: example
+spec:
+  ports:
+    - port: 25565
+      targetPort: 25565
+  selector:
+    app: example
+  type: LoadBalancer

examples/modpacks/.gitignore

@@ -0,0 +1 @@
+*.zip

examples/modpacks/README.md

@@ -0,0 +1,3 @@
+Place server [modpacks downloaded from CurseForge](https://www.curseforge.com/minecraft/modpacks) in this directory.
+
+The example [`docker-compose-curseforge.yml`](../docker-compose-curseforge.yml) references a modpack downloaded from <https://www.curseforge.com/minecraft/modpacks/skyfactory-4/files/3012800>.

examples/paper-build-plugins/Dockerfile

@@ -0,0 +1,5 @@
+FROM itzg/minecraft-server
+
+ENV TYPE=PAPER
+
+COPY plugins/*.jar /plugins/

examples/paper-build-plugins/docker-compose.yml

@@ -0,0 +1,11 @@
+version: '3.7'
+
+services:
+  mc:
+    build: .
+    environment:
+      EULA: "TRUE"
+    ports:
+    - 25565:25565
+    stdin_open: true
+    tty: true

examples/paper-build-plugins/plugins/.gitignore

@@ -0,0 +1 @@
+*.jar

examples/paper-build-plugins/plugins/README.md

@@ -0,0 +1 @@
+Download Bukkit/Spigot plugin jars, such as [WorldEdit](https://dev.bukkit.org/projects/worldedit/files) and place them here. At image build time the `COPY` step will place those jars in `/plugins`. At container startup, the contents of `/plugins` are sync'ed into `/data/plugins` for use with Bukkit/Spigot/Paper server types.

files/autopause/autopause-daemon.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+
+. /autopause/autopause-fcns.sh
+
+. ${SCRIPTS:-/}start-utils
+
+
+autopause_error_loop() {
+  logAutopause "Available interfaces within the docker container:"
+  INTERFACES=$(echo /sys/class/net/*)
+  INTERFACES=${INTERFACES//\/sys\/class\/net\//}
+  logAutopause "  $INTERFACES"
+  logAutopause "Please set the environment variable AUTOPAUSE_KNOCK_INTERFACE to the interface that handles incoming connections."
+  logAutopause "If unsure which interface to choose, run the ifconfig command in the container."
+  logAutopause "Autopause failed to initialize. This log entry will be printed every 30 minutes."
+  while :
+  do
+    sleep 1800
+    logAutopause "Autopause failed to initialize."
+  done
+}
+
+# wait for java process to be started
+while :
+do
+  if java_process_exists ; then
+    break
+  fi
+  sleep 0.1
+done
+
+# check for interface existence
+if [[ -z "$AUTOPAUSE_KNOCK_INTERFACE" ]] ; then
+  logAutopause "AUTOPAUSE_KNOCK_INTERFACE variable must not be empty!"
+  autopause_error_loop
+fi
+if ! [[ -d "/sys/class/net/$AUTOPAUSE_KNOCK_INTERFACE" ]] ; then
+  logAutopause "Selected interface \"$AUTOPAUSE_KNOCK_INTERFACE\" does not exist!"
+  autopause_error_loop
+fi
+
+sudo /usr/sbin/knockd -c /tmp/knockd-config.cfg -d -i "$AUTOPAUSE_KNOCK_INTERFACE"
+if [ $? -ne 0 ] ; then
+  logAutopause "Failed to start knockd daemon."
+  logAutopause "Probable cause: Unable to attach to interface \"$AUTOPAUSE_KNOCK_INTERFACE\"."
+  autopause_error_loop
+fi
+
+STATE=INIT
+
+while :
+do
+  case X$STATE in
+  XINIT)
+    # Server startup
+    if mc_server_listening ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_INIT))
+      logAutopause "MC Server listening for connections - stopping in $AUTOPAUSE_TIMEOUT_INIT seconds"
+      STATE=K
+    fi
+    ;;
+  XK)
+    # Knocked
+    if java_clients_connected ; then
+      logAutopause "Client connected - waiting for disconnect"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutopause "No client connected since startup / knocked - stopping"
+        /autopause/pause.sh
+        STATE=S
+      fi
+    fi
+    ;;
+  XE)
+    # Established
+    if ! java_clients_connected ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_EST))
+      logAutopause "All clients disconnected - stopping in $AUTOPAUSE_TIMEOUT_EST seconds"
+      STATE=I
+    fi
+    ;;
+  XI)
+    # Idle
+    if java_clients_connected ; then
+      logAutopause "Client reconnected - waiting for disconnect"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutopause "No client reconnected - stopping"
+        /autopause/pause.sh
+        STATE=S
+      fi
+    fi
+    ;;
+  XS)
+    # Stopped
+    if rcon_client_exists ; then
+      /autopause/resume.sh
+    fi
+    if java_running ; then
+      if java_clients_connected ; then
+        logAutopause "Client connected - waiting for disconnect"
+        STATE=E
+      else
+        TIME_THRESH=$(($(current_uptime)+$AUTOPAUSE_TIMEOUT_KN))
+        logAutopause "Server was knocked - waiting for clients or timeout"
+        STATE=K
+      fi
+    fi
+    ;;
+  *)
+    logAutopause "Error: invalid state: $STATE"
+    ;;
+  esac
+  if [[ "$STATE" == "S" ]] ; then
+    # before rcon times out
+    sleep 2
+  else
+    sleep $AUTOPAUSE_PERIOD
+  fi
+done

files/autopause/autopause-fcns.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+current_uptime() {
+  echo $(awk '{print $1}' /proc/uptime | cut -d . -f 1)
+}
+
+java_running() {
+  [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]]
+}
+
+java_process_exists() {
+  [[ -n "$(ps -a -o comm | grep 'java')" ]]
+}
+
+rcon_client_exists() {
+  [[ -n "$(ps -a -o comm | grep 'rcon-cli')" ]]
+}
+
+mc_server_listening() {
+  mc-monitor status --host localhost --port $SERVER_PORT --timeout 10s >& /dev/null
+}
+
+java_clients_connected() {
+  local connections
+  if java_running ; then
+    connections=$(mc-monitor status --host localhost --port $SERVER_PORT --show-player-count)
+  else
+    connections=0
+  fi
+  (( $connections > 0 ))
+}

files/autopause/knockd-config.cfg

@@ -0,0 +1,15 @@
+[options]
+ logfile = /dev/null
+[unpauseMCServer-server]
+ sequence = 25565
+ seq_timeout = 1
+ command = /sbin/su-exec minecraft:minecraft /autopause/resume.sh
+ tcpflags = syn
+[unpauseMCServer-rcon]
+ sequence = 25575
+ seq_timeout = 1
+ command = /sbin/su-exec minecraft:minecraft /autopause/resume.sh
+ tcpflags = syn
+[unpauseMCServer-bedrock]
+ sequence = 19132:udp
+ command = /usr/sbin/gosu minecraft:minecraft /autopause/resume.sh

files/autopause/pause.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+. /start-utils
+
+if [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]] ; then
+  # save world
+  rcon-cli save-all >/dev/null
+
+  # wait until mc-monitor is no longer connected to the server
+  while :
+  do
+    if [[ -z "$(netstat -nt | grep "127.0.0.1:$SERVER_PORT" | grep 'ESTABLISHED')" ]]; then
+      break
+    fi
+    sleep 0.1
+  done
+
+  # finally pause the process
+  logAutopauseAction "Pausing Java process"
+  pkill -STOP java
+fi

files/autopause/resume.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+. /start-utils
+
+if [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^T.*$ ]] ; then
+  logAutopauseAction "Knocked, resuming Java process"
+  pkill -CONT java
+fi

files/sudoers-mc

@@ -0,0 +1,2 @@
+%minecraft ALL=(ALL) NOPASSWD:/usr/bin/pkill
+%minecraft ALL=(ALL) NOPASSWD:/usr/sbin/knockd

log4j2.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN" packages="com.mojang.util">
+    <Appenders>
+        <Console name="SysOut" target="SYSTEM_OUT">
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %msg%n" />
+        </Console>
+        <Queue name="ServerGuiConsole">
+            <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n" />
+        </Queue>
+        <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz">
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %msg%n" />
+            <Policies>
+                <TimeBasedTriggeringPolicy />
+                <OnStartupTriggeringPolicy />
+            </Policies>
+            <DefaultRolloverStrategy>
+                <Delete basePath="logs">
+                    <IfFileName glob="*.log.gz" />
+                    <IfLastModified age="7d" />
+                </Delete>
+            </DefaultRolloverStrategy>
+        </RollingRandomAccessFile>
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <filters>
+                <MarkerFilter marker="NETWORK_PACKETS" onMatch="DENY" onMismatch="NEUTRAL" />
+            </filters>
+            <AppenderRef ref="SysOut"/>
+            <AppenderRef ref="File"/>
+            <AppenderRef ref="ServerGuiConsole"/>
+        </Root>
+    </Loggers>
+</Configuration>

mcadmin.jq

@@ -1,7 +0,0 @@
-.[] |
- select(.elements | length > 1) |
-  select(.elements[].elements[] | select(.class == "version" and .text == $version)) |
-   .elements[].elements[] |
-    select(.class|contains("server-jar")) |
-     .elements[] | select(.name="a") |
-      .href

server.properties

@@ -22,6 +22,7 @@ snooper-enabled=true
 texture-pack=
 online-mode=true
 resource-pack=
+resource-pack-sha1=
 pvp=true
 difficulty=1
 enable-command-block=true
@@ -36,3 +37,15 @@ motd=A Minecraft Server powered by Docker
 generator-settings=
 rcon.password=
 max-world-size=29999984
+broadcast-console-to-ops=true
+broadcast-rcon-to-ops=true
+enable-jmx-monitoring=false
+sync-chunk-writes=true
+enable-status=true
+entity-broadcast-range-percentage=100
+function-permission-level=2
+network-compression-threshold=256
+op-permission-level=4
+prevent-proxy-connections=false
+use-native-transport=true
+enforce-whitelist=false

start

@@ -1,22 +1,46 @@
 #!/bin/bash
 
+. ${SCRIPTS:-/}start-utils
+
 umask 0002
 chmod g+w /data
 
-if [ $(id -u) = 0 ]; then
-  if [[ -v UID && $UID != $(id -u) ]]; then
-    usermod -u $UID minecraft
+if ! isTrue "${SKIP_SUDO:-false}" && [ $(id -u) = 0 ]; then
+  runAsUser=minecraft
+  runAsGroup=minecraft
+
+  if [[ -v UID ]]; then
+    if [[ $UID != 0 ]]; then
+      if [[ $UID != $(id -u minecraft) ]]; then
+        log "Changing uid of minecraft to $UID"
+        usermod -u $UID minecraft
+      fi
+    else
+      runAsUser=root
+    fi
   fi
+
   if [[ -v GID ]]; then
-    groupmod -o -g $GID minecraft
+    if [[ $GID != 0 ]]; then
+      if [[ $GID != $(id -g minecraft) ]]; then
+        log "Changing gid of minecraft to $GID"
+        groupmod -o -g $GID minecraft
+      fi
+    else
+      runAsGroup=root
+    fi
   fi
 
   if [[ $(stat -c "%u" /data) != $UID ]]; then
-    echo "Changing ownership of /data to $UID ..."
-    chown -R minecraft:minecraft /data
+    log "Changing ownership of /data to $UID ..."
+    chown -R ${runAsUser}:${runAsGroup} /data
   fi
 
-  exec su-exec minecraft:minecraft /start-configuration $@
+  if [[ ${SKIP_NSSWITCH_CONF^^} != TRUE ]]; then
+    echo 'hosts: files dns' > /etc/nsswitch.conf
+  fi
+
+  exec su-exec ${runAsUser}:${runAsGroup} ${SCRIPTS:-/}start-configuration $@
 else
-  exec /start-configuration $@
+  exec ${SCRIPTS:-/}start-configuration $@
 fi

start-autopause

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+log "Autopause functionality enabled"
+
+cp /autopause/knockd-config.cfg /tmp/knockd-config.cfg
+
+# update server port to listen to
+regseq="^\s*sequence\s*=\s*$SERVER_PORT\s*$"
+linenum=$(grep -nm1 sequence /tmp/knockd-config.cfg | cut -d : -f 1 | tail -n1)
+if ! [[ $(awk "NR==$linenum" /tmp/knockd-config.cfg) =~ $regseq ]]; then
+  sed -i "${linenum}s/sequence.*/sequence = $SERVER_PORT/" /tmp/knockd-config.cfg
+  log "Updated server port in knockd config"
+fi
+# update rcon port to listen to
+regseq="^\s*sequence\s*=\s*$RCON_PORT\s*$"
+linenum=$(grep -nm2 sequence /tmp/knockd-config.cfg | cut -d : -f 1 | tail -n1)
+if ! [[ $(awk "NR==$linenum" /tmp/knockd-config.cfg) =~ $regseq ]]; then
+  sed -i "${linenum}s/sequence.*/sequence = $RCON_PORT/" /tmp/knockd-config.cfg
+  log "Updated rcon port in knockd config"
+fi
+
+if ! [[ $AUTOPAUSE_PERIOD =~ ^[0-9]+$ ]]; then
+  AUTOPAUSE_PERIOD=10
+  export AUTOPAUSE_PERIOD
+  log "Warning: AUTOPAUSE_PERIOD is not numeric, set to 10 (seconds)"
+fi
+if [ "$AUTOPAUSE_PERIOD" -eq "0" ] ; then
+  AUTOPAUSE_PERIOD=10
+  export AUTOPAUSE_PERIOD
+  log "Warning: AUTOPAUSE_PERIOD must not be 0, set to 10 (seconds)"
+fi
+if ! [[ $AUTOPAUSE_TIMEOUT_KN =~ ^[0-9]+$ ]] ; then
+  AUTOPAUSE_TIMEOUT_KN=120
+  export AUTOPAUSE_TIMEOUT_KN
+  log "Warning: AUTOPAUSE_TIMEOUT_KN is not numeric, set to 120 (seconds)"
+fi
+if ! [[ $AUTOPAUSE_TIMEOUT_EST =~ ^[0-9]+$ ]] ; then
+  AUTOPAUSE_TIMEOUT_EST=3600
+  export AUTOPAUSE_TIMEOUT_EST
+  log "Warning: AUTOPAUSE_TIMEOUT_EST is not numeric, set to 3600 (seconds)"
+fi
+if ! [[ $AUTOPAUSE_TIMEOUT_INIT =~ ^[0-9]+$ ]] ; then
+  AUTOPAUSE_TIMEOUT_INIT=600
+  export AUTOPAUSE_TIMEOUT_INIT
+  log "Warning: AUTOPAUSE_TIMEOUT_INIT is not numeric, set to 600 (seconds)"
+fi
+if [[ "$AUTOPAUSE_KNOCK_INTERFACE" == "lo" ]] ; then
+  log "Warning: AUTOPAUSE_KNOCK_INTERFACE is set to the local loopback interface."
+  log "         This is not advisable, as incoming connections are likely not picked up there."
+  log "         Continuing with this setting."
+fi
+
+if [[ -n "$MAX_TICK_TIME" && "$MAX_TICK_TIME" != "-1" ]] ; then
+  log "Warning: MAX_TICK_TIME is non-default, for autopause to work properly, this check should be disabled (-1 for versions >= 1.8.1)"
+elif [[ -z "$MAX_TICK_TIME" ]] ; then
+  if versionLessThan 1.8.1; then
+    # 10 years
+    MAX_TICK_TIME=315360000000
+  else
+    MAX_TICK_TIME=-1
+  fi
+  export MAX_TICK_TIME
+fi
+
+/autopause/autopause-daemon.sh &

start-configuration

@@ -1,105 +1,168 @@
 #!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+# shellcheck source=start-utils
+. ${SCRIPTS:-/}start-utils
+
+: "${EULA:=}"
+: "${PROXY:=}"
+: "${RCON_PASSWORD_FILE:=}"
 
 shopt -s nullglob
 
+isDebugging && set -x
+
 #umask 002
 export HOME=/data
 
+log "Running as uid=$(id -u) gid=$(id -g) with /data as '$(ls -lnd /data)'"
+
 if [ ! -e /data/eula.txt ]; then
-  if [ "$EULA" != "" ]; then
-    echo "# Generated via Docker on $(date)" > eula.txt
-    echo "eula=$EULA" >> eula.txt
-    if [ $? != 0 ]; then
-      echo "ERROR: unable to write eula to /data. Please make sure attached directory is writable by uid=${UID}"
-      exit 2
-    fi
-  else
-    echo ""
-    echo "Please accept the Minecraft EULA at"
-    echo "  https://account.mojang.com/documents/minecraft_eula"
-    echo "by adding the following immediately after 'docker run':"
-    echo "  -e EULA=TRUE"
-    echo ""
+  if ! isTrue "$EULA"; then
+    log ""
+    log "Please accept the Minecraft EULA at"
+    log "  https://account.mojang.com/documents/minecraft_eula"
+    log "by adding the following immediately after 'docker run':"
+    log "  -e EULA=TRUE"
+    log ""
     exit 1
   fi
+
+  writeEula
 fi
 
-echo "Running as uid=$(id -u) gid=$(id -g) with /data as '$(ls -lnd /data)'"
-
-if ! touch /data/.verify_access; then
-  echo "ERROR: /data doesn't seem to be writable. Please make sure attached directory is writable by uid=$(id -u)"
-  exit 2
-fi
-
-rm /data/.verify_access || true
 
 if [[ $PROXY ]]; then
     export http_proxy="$PROXY"
     export https_proxy="$PROXY"
-    echo "INFO: Giving proxy time to startup..."
+    export JAVA_TOOL_OPTIONS+="-Djava.net.useSystemProxies=true"
+    log "INFO: Giving proxy time to startup..."
     sleep 5
 fi
 
-export SERVER_PROPERTIES=/data/server.properties
+if [[ $RCON_PASSWORD_FILE ]]; then
+    log ""
+    if [ ! -e ${RCON_PASSWORD_FILE} ]; then
+	log "Initial RCON password file ${RCON_PASSWORD_FILE} does not seems to exist."
+	log "Please ensure your configuration."
+	log "If you are using Docker Secrets feature, please check this for further information: "
+	log " https://docs.docker.com/engine/swarm/secrets"
+	log ""
+	exit 1
+    else
+	RCON_PASSWORD=$(cat ${RCON_PASSWORD_FILE})
+	export RCON_PASSWORD
+    fi
+    log ""
+fi
+
+if ! which java > /dev/null; then
+  log "Fixing PATH to include java"
+  PATH="${PATH}:/usr/bin"
+fi
+
 export VERSIONS_JSON=https://launchermeta.mojang.com/mc/game/version_manifest.json
 
-echo "Checking version information."
 case "X$VERSION" in
   X|XLATEST|Xlatest)
-    export VANILLA_VERSION=`curl -fsSL $VERSIONS_JSON | jq -r '.latest.release'`
+    if ! VANILLA_VERSION=$(get --json-path '$.latest.release' "$VERSIONS_JSON"); then
+      log "ERROR: version lookup failed: $VANILLA_VERSION"
+      exit 1
+    fi
   ;;
   XSNAPSHOT|Xsnapshot)
-    export VANILLA_VERSION=`curl -fsSL $VERSIONS_JSON | jq -r '.latest.snapshot'`
-  ;;
-  X[1-9]*)
-    export VANILLA_VERSION=$VERSION
+    if ! VANILLA_VERSION=$(get --json-path '$.latest.snapshot' "$VERSIONS_JSON"); then
+      log "ERROR: version lookup failed: $VANILLA_VERSION"
+      exit 1
+    fi
   ;;
   *)
-    export VANILLA_VERSION=`curl -fsSL $VERSIONS_JSON | jq -r '.latest.release'`
+    VANILLA_VERSION=$VERSION
   ;;
 esac
+export VANILLA_VERSION
+log "Resolved version given ${VERSION} into ${VANILLA_VERSION}"
 
-cd /data
+cd /data || exit 1
 
 export ORIGINAL_TYPE=${TYPE^^}
 
-echo "Checking type information."
+if isTrue "${ENABLE_AUTOPAUSE}"; then
+  ${SCRIPTS:-/}start-autopause
+fi
+
+log "Resolving type given ${TYPE}"
 case "${TYPE^^}" in
   *BUKKIT|SPIGOT)
-    exec /start-deployBukkitSpigot $@
+    exec ${SCRIPTS:-/}start-deployBukkitSpigot "$@"
   ;;
 
   PAPER)
-    exec /start-deployPaper $@
+    exec ${SCRIPTS:-/}start-deployPaper "$@"
   ;;
 
   FORGE)
-    exec /start-deployForge $@
+    exec ${SCRIPTS:-/}start-deployForge "$@"
   ;;
 
   FABRIC)
-    exec /start-deployFabric $@
+    exec ${SCRIPTS:-/}start-deployFabric "$@"
   ;;
 
   FTB|CURSEFORGE)
-    exec /start-deployFTB $@
+    exec ${SCRIPTS:-/}start-deployCF "$@"
   ;;
 
   VANILLA)
-    exec /start-deployVanilla $@
+    exec "${SCRIPTS:-/}start-deployVanilla" "$@"
   ;;
 
   SPONGEVANILLA)
-    exec /start-deploySpongeVanilla $@
+    exec ${SCRIPTS:-/}start-deploySpongeVanilla "$@"
   ;;
 
   CUSTOM)
-    exec /start-deployCustom $@
+    exec ${SCRIPTS:-/}start-deployCustom "$@"
+  ;;
+
+  CURSE_INSTANCE)
+    exec ${SCRIPTS:-/}start-validateCurseInstance "$@"
+  ;;
+
+  MAGMA)
+    exec ${SCRIPTS:-/}start-deployMagma "$@"
+  ;;
+
+  MOHIST)
+    exec ${SCRIPTS:-/}start-deployMohist "$@"
+  ;;
+
+  CATSERVER)
+    exec ${SCRIPTS:-/}start-deployCatserver "$@"
+  ;;
+
+  PURPUR)
+    exec ${SCRIPTS:-/}start-deployPurpur "$@"
+  ;;
+
+  AIRPLANE)
+    exec ${SCRIPTS:-/}start-deployAirplane "$@"
+  ;;
+
+  CANYON)
+    exec ${SCRIPTS:-/}start-deployCanyon "$@"
+  ;;
+
+  LIMBO)
+    exec ${SCRIPTS:-/}start-deployLimbo "$@"
   ;;
 
   *)
-      echo "Invalid type: '$TYPE'"
-      echo "Must be: VANILLA, FORGE, BUKKIT, SPIGOT, PAPER, FTB, CURSEFORGE, SPONGEVANILLA"
+      log "Invalid type: '$TYPE'"
+      log "Must be: VANILLA, FORGE, BUKKIT, SPIGOT, PAPER, FTBA (multiarch-only),"
+      log "         CURSE_INSTANCE, CURSEFORGE, SPONGEVANILLA, PURPUR, CUSTOM,"
+      log "         MAGMA, MOHIST, CATSERVER, AIRPLANE, CANYON, LIMBO"
       exit 1
   ;;
 

start-deployAirplane

@@ -0,0 +1,52 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
+if [ "${VERSION}" != "LATEST" ] && [ "${VERSION}" != "1.16" ] && [ "${VERSION}" != "1.17" ] && [ "${VERSION}" != "PURPUR" ] && [ "${VERSION}" != "PURPUR-1.16" ] ; then
+  log "ERROR: Airplane server type only supports VERSION=LATEST, VERSION=1.17, VERSION=1.16, VERSION=PURPUR or VERSION=PURPUR-1.16. Note that these are branches, not #.#.# versions."
+  exit 1
+fi
+
+: ${AIRPLANE_BUILD:=lastSuccessfulBuild}
+: ${AIRPLANE_TYPE:=airplane}
+
+if  [ "${VERSION}" = "LATEST" ] || [ "${VERSION}" = "1.17" ]; then
+  AIRPLANE_BRANCH="1.17"
+fi
+
+if [ "${VERSION}" = "1.16" ]; then
+  AIRPLANE_BRANCH="1.16"
+fi
+
+if [ "${VERSION}" = "PURPUR" ]; then
+  AIRPLANE_BRANCH="Purpur-1.17"
+  AIRPLANE_TYPE="airplanepurpur"
+fi
+
+if [ "${VERSION}" = "PURPUR-1.16" ]; then
+  AIRPLANE_BRANCH="Purpur-1.16"
+  AIRPLANE_TYPE="airplanepurpur"
+fi
+
+log "Using Airplane-${AIRPLANE_BRANCH} branch"
+
+export SERVER=airplane-${AIRPLANE_BRANCH}-${AIRPLANE_BUILD}.jar
+
+if [ ! -f "$SERVER" ] || isTrue "${FORCE_REDOWNLOAD:-false}"; then
+    downloadUrl="https://ci.tivy.ca/job/Airplane-${AIRPLANE_BRANCH}/${AIRPLANE_BUILD}/artifact/launcher-${AIRPLANE_TYPE}.jar"
+    log "Downloading Airplane from $downloadUrl ..."
+    curl -fsSL -o "$SERVER" "$downloadUrl"
+    if [ ! -f "$SERVER" ]; then
+      log "ERROR: failed to download from $downloadUrl (status=$?)"
+      exit 3
+    fi
+fi
+
+# Normalize on Spigot for later operations
+export TYPE=SPIGOT
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-spiget "$@"

start-deployBukkitSpigot

@@ -1,24 +1,45 @@
 #!/bin/bash
 
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
 set -e
 
 function buildSpigotFromSource {
-  echo "Building Spigot $VANILLA_VERSION from source, might take a while, get some coffee"
+  if [[ ${TYPE^^} = *BUKKIT ]] && ! versionLessThan "1.14"; then
+    log "ERR craftbukkit build is only supported for versions less than 1.14"
+    exit 1
+  fi
+
+  log "Building Spigot $VANILLA_VERSION from source, might take a while, get some coffee"
   rm -rf /data/temp
   mkdir /data/temp
   cd /data/temp
 
   jvmOpts="-Xms${INIT_MEMORY:-$MEMORY} -Xmx${MAX_MEMORY:-$MEMORY}"
 
+  logn ''
   curl -sSL -o /data/temp/BuildTools.jar https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar && \
-    java $jvmOpts -jar /data/temp/BuildTools.jar --rev $VANILLA_VERSION 2>&1 |tee /data/spigot_build.log| while read l; do echo -n .; done; echo "done"
-  if ! mv spigot-*.jar /data/spigot_server.jar; then
-    echo "ERR failed to build Spigot"
-    cat /data/spigot_build.log
-    exit 1
-  fi
-  mv craftbukkit-*.jar /data/craftbukkit_server.jar
-  echo "Cleaning up"
+    java $jvmOpts -jar /data/temp/BuildTools.jar --rev $VANILLA_VERSION 2>&1 |tee /data/spigot_build.log| while read l; do echo -n .; done; log "done"
+
+  case ${TYPE^^} in
+    SPIGOT)
+      if ! mv spigot-*.jar /data/${SERVER}; then
+        log "ERR failed to build Spigot"
+        cat /data/spigot_build.log
+        exit 1
+      fi
+      ;;
+    *BUKKIT)
+      if ! mv craftbukkit-*.jar /data/${SERVER}; then
+        log "ERR failed to build Spigot"
+        cat /data/spigot_build.log
+        exit 1
+      fi
+      ;;
+  esac
+
+  log "Cleaning up"
   rm -rf /data/temp
   cd /data
 }
@@ -38,51 +59,74 @@ function downloadSpigot {
       ;;
   esac
 
-  local downloadVersion
-  if [[ ${VERSION} == LATEST ]]; then
-    downloadVersion=${VANILLA_VERSION}
-  else
-    downloadVersion=${VERSION}
+  if [[ ${VERSION^^} = LATEST ]]; then
+    VANILLA_VERSION=$(restify https://getbukkit.org/download/spigot --attribute='property=og:title' | jq -r '.[0] | .attributes | select(.property == "og:title") | .content | split(" ") | .[-1]')
   fi
 
   if [[ -z $downloadUrl ]]; then
-    downloadUrl="https://cdn.getbukkit.org/${getbukkitFlavor}/${getbukkitFlavor}-${downloadVersion}.jar"
+    if versionLessThan 1.16.5; then
+      downloadUrl="https://cdn.getbukkit.org/${getbukkitFlavor}/${getbukkitFlavor}-${VANILLA_VERSION}.jar"
+    else
+      downloadUrl="https://download.getbukkit.org/${getbukkitFlavor}/${getbukkitFlavor}-${VANILLA_VERSION}.jar"
+    fi
   fi
 
-  echo "Downloading $match from $downloadUrl ..."
-  curl -fsSL -o $SERVER "$downloadUrl"
+  setServerVar
+  if [ -f $SERVER ]; then
+    # tell curl to only download when newer
+    curlArgs="-z $SERVER"
+  fi
+  if isDebugging; then
+    curlArgs="$curlArgs -v"
+  fi
+  log "Downloading $match from $downloadUrl ..."
+  curl -fsSL -o $SERVER $curlArgs "$downloadUrl"
   if [[ $? != 0 || $(grep -c "DOCTYPE html" $SERVER) != 0 ]]; then
     cat <<EOF
 
 ERROR: failed to download from $downloadUrl
        Visit https://getbukkit.org/download/${getbukkitFlavor} to lookup the
-       exact version, such as 1.4.6-R0.4-SNAPSHOT or 1.8-R0.1-SNAPSHOT-LATEST
+       exact version, such as 1.4.6-R0.4-SNAPSHOT or 1.8-R0.1-SNAPSHOT-latest.
+       Click into the version entry to find the **exact** version, because something
+       like "1.8" is not sufficient according to their download naming.
 
 EOF
+
+    if isDebugging && [[ $(grep -c "DOCTYPE html" $SERVER) != 0 ]]; then
+      cat $SERVER
+    fi
+
+    # remove invalid download
+    rm $SERVER
     exit 3
   fi
+
+  JVM_OPTS="${JVM_OPTS} -DIReallyKnowWhatIAmDoingISwear"
+  export JVM_OPTS
 }
 
+function setServerVar {
+  case "$TYPE" in
+    *BUKKIT|*bukkit)
+      export SERVER=craftbukkit_server-${VANILLA_VERSION}.jar
+      ;;
+    *)
+      export SERVER=spigot_server-${VANILLA_VERSION}.jar
+      ;;
+  esac
+}
 
-case "$TYPE" in
-  *BUKKIT|*bukkit)
-    export SERVER=craftbukkit_server.jar
-    ;;
-  *)
-    export SERVER=spigot_server.jar
-    ;;
-esac
-
-if [ ! -f $SERVER ] || [ -n "$FORCE_REDOWNLOAD" ]; then
-   if [[ "$BUILD_SPIGOT_FROM_SOURCE" = TRUE || "$BUILD_SPIGOT_FROM_SOURCE" = true || "$BUILD_FROM_SOURCE" = TRUE || "$BUILD_FROM_SOURCE" = true ]]; then
-     buildSpigotFromSource
-   else
-     downloadSpigot
-   fi
+if isTrue "$BUILD_SPIGOT_FROM_SOURCE" || isTrue "$BUILD_FROM_SOURCE"; then
+  setServerVar
+  if [ ! -f $SERVER ] || [ -n "$FORCE_REDOWNLOAD" ]; then
+    buildSpigotFromSource
+  fi
+else
+  downloadSpigot
 fi
 
 # Normalize on Spigot for operations below
 export TYPE=SPIGOT
+export SKIP_LOG4J_CONFIG=true
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+exec ${SCRIPTS:-/}start-spiget "$@"

start-deployCF

@@ -0,0 +1,241 @@
+#!/bin/bash
+
+set -e
+
+. ${SCRIPTS:-/}start-utils
+
+loadForgeVars() {
+  cfgFile=${1?}
+  pat='^([^#;][^=]+)=[:space:]*([^;]*)'
+  while read -r line || [[ -n "$line" ]] ; do
+      if [[ $line =~ $pat ]]; then
+          #echo "MATCHED $line"
+          k=${BASH_REMATCH[1]}
+          v=${BASH_REMATCH[2]}
+          case $k in
+            FORGEURL)
+              forgeInstallerUrl="$v"
+              ;;
+          esac
+      fi
+  done < "$cfgFile"
+}
+
+isDebugging && set -x
+
+: ${FTB_BASE_DIR:=${CF_BASE_DIR:-/data/FeedTheBeast}}
+export FTB_BASE_DIR
+
+legacyJavaFixerUrl=https://ftb.forgecdn.net/FTB2/maven/net/minecraftforge/lex/legacyjavafixer/1.0/legacyjavafixer-1.0.jar
+export TYPE=CURSEFORGE
+
+FTB_SERVER_MOD=${FTB_SERVER_MOD:-$CF_SERVER_MOD}
+
+log "Looking for Feed-The-Beast / CurseForge server modpack."
+requireVar FTB_SERVER_MOD
+
+if ! isTrue ${USE_MODPACK_START_SCRIPT:-true}; then
+  if ! [ -f "${FTB_SERVER_MOD}" ]; then
+    log "ERROR unable to find requested modpack file ${FTB_SERVER_MOD}"
+    exit 2
+  fi
+
+  needsInstall=true
+  installMarker=/data/.curseforge-installed
+  if [ -f $installMarker ]; then
+    if [ "$(cat $installMarker)" != "${FTB_SERVER_MOD}" ]; then
+      log "Upgrading modpack"
+
+      serverJar=$(find ${FTB_BASE_DIR} -not -name "forge*installer.jar" -name "forge*.jar")
+      if [[ "${serverJar}" ]]; then
+        rm -rf $(dirname "${serverJar}")/{mods,*.jar,libraries,resources,scripts,config}
+      fi
+    else
+      needsInstall=false
+    fi
+  fi
+
+  if $needsInstall; then
+    log "Unpacking FTB server modpack ${FTB_SERVER_MOD} ..."
+    mkdir -p ${FTB_BASE_DIR}
+    unzip -o "${FTB_SERVER_MOD}" -d ${FTB_BASE_DIR} | awk '{printf "."} END {print ""}'
+
+    serverJar=$(find ${FTB_BASE_DIR} -type f \( -path "*/libraries/*" -o -path "*/mods/*" \) -prune -o -name "forge*.jar" -not -name "forge*installer.jar" -print)
+    if [[ -z "$serverJar" ]]; then
+
+      if [ -f "${FTB_BASE_DIR}/settings.cfg" ]; then
+        loadForgeVars "${FTB_BASE_DIR}/settings.cfg"
+
+        if [[ $forgeInstallerUrl ]]; then
+          forgeInstallerJar="${FTB_BASE_DIR}/forge-installer.jar"
+          if ! curl -fsSL -o "$forgeInstallerJar" "$forgeInstallerUrl" ; then
+            log "ERROR failed to download Forge installer from $forgeInstallerUrl"
+            exit 2
+          fi
+        fi
+      else
+        forgeInstallerJar=$(find "${FTB_BASE_DIR}" -name "forge*installer.jar")
+      fi
+
+      if [[ -z "${forgeInstallerJar}" ]]; then
+        log "ERROR Unable to find forge installer in modpack"
+        log "      or download using modpack config."
+        log "      Make sure you downloaded the server files."
+        exit 2
+      fi
+
+      forgeInstallerJar=$(ls -t "${forgeInstallerJar}" | head -1)
+
+      log "Installing forge server"
+      dirOfInstaller=$(dirname "${forgeInstallerJar}")
+      (cd "${dirOfInstaller}"; java -jar $(basename "${forgeInstallerJar}") --installServer)
+    fi
+
+    echo "${FTB_SERVER_MOD}" > $installMarker
+  fi
+
+  export SERVER=$(find ${FTB_BASE_DIR} -type f \( -path "/libraries/*" -o -path "/mods/*" \) -prune -o -name "forge*.jar" -not -name "forge*installer.jar" -maxdepth 2 -print)
+  if [[ -z "${SERVER}" || ! -f "${SERVER}" ]]; then
+    log "ERROR unable to locate installed forge server jar"
+    isDebugging && find ${FTB_BASE_DIR} -name "forge*.jar"
+    exit 2
+  fi
+
+  export FTB_DIR=$(dirname "${SERVER}")
+
+  exec ${SCRIPTS:-/}start-setupWorld $@
+fi
+
+entryScriptExpr="
+  -name ServerStart.sh
+  -o -name serverstart.sh
+  -o -name ServerStartLinux.sh
+  -o -name LaunchServer.sh
+  -o -name server-start.sh
+  -o -name start-server.sh
+  -o -name startserver.sh
+  -o -name StartServer.sh
+  "
+
+if [[ -d ${FTB_BASE_DIR} ]]; then
+  startScriptCount=$(find ${FTB_BASE_DIR} $entryScriptExpr |wc -l)
+  if [[ $startScriptCount > 1 ]]; then
+    log "Conflicting FTB/CurseForge packages have been installed. Please cleanup ${FTB_BASE_DIR}"
+    exit 2
+  fi
+else
+  startScriptCount=0
+fi
+
+# only download and install if a mod pack isn't already installed
+# also check for the start script rather than just the folder
+# this allows saving just the world separate from the rest of the data directory
+if [[ $startScriptCount = 0 ]]; then
+  srv_modpack=${FTB_SERVER_MOD}
+  if isURL "${srv_modpack}"; then
+      case $srv_modpack in
+        https://www.feed-the-beast.com/*/download|https://www.curseforge.com/minecraft/modpacks/*/download/*/file)
+          ;;
+        https://www.curseforge.com/minecraft/modpacks/*/download/*)
+          srv_modpack=${srv_modpack}/file;;
+        https://www.feed-the-beast.com/*)
+          srv_modpack=${srv_modpack}/download;;
+      esac
+      file=$(basename $(dirname $srv_modpack))
+      downloaded=/data/${file}.zip
+      if [ ! -e $downloaded ]; then
+        log "Downloading FTB modpack...
+  $srv_modpack -> $downloaded"
+        curl -sSL -o $downloaded $srv_modpack
+      fi
+      srv_modpack=$downloaded
+  fi
+  if [[ "${srv_modpack:0:5}" == "data/" ]]; then
+      # Prepend with "/"
+      srv_modpack="/${srv_modpack}"
+  fi
+  if [[ ! "${srv_modpack:0:1}" == "/" ]]; then
+      # If not an absolute path, assume file is in "/data"
+      srv_modpack=/data/${srv_modpack}
+  fi
+  if [[ ! -f "${srv_modpack}" ]]; then
+      log "FTB server modpack ${srv_modpack} not found."
+      exit 2
+  fi
+  if [[ ! "${srv_modpack: -4}" == ".zip" ]]; then
+      log "FTB server modpack ${srv_modpack} is not a zip archive."
+      log "Please set FTB_SERVER_MOD to a file with a .zip extension."
+      exit 2
+  fi
+
+  log "Unpacking FTB server modpack ${srv_modpack} ..."
+  mkdir -p ${FTB_BASE_DIR}
+  unzip -o "${srv_modpack}" -d ${FTB_BASE_DIR} | awk '{printf "."} END {print ""}'
+
+  installScript=$(find "${FTB_BASE_DIR}" -maxdepth 2 -type f -name install.sh)
+  if [[ "$installScript" ]]; then
+    (
+      cd "$(dirname "${installScript}")"
+      chmod +x ./install.sh
+      log "Running included install.sh"
+      ./install.sh
+    )
+  fi
+fi
+
+if [[ $(find ${FTB_BASE_DIR} $entryScriptExpr | wc -l) = 0 ]]; then
+
+    # Allow up to 2 levels since some modpacks have a top-level directory named
+    # for the modpack
+    forgeJar=$(find ${FTB_BASE_DIR} -type f \( -path "/libraries/*" -o -path "/mods/*" \) -prune -o -name "forge*.jar" -not -name "forge*installer.jar" -maxdepth 2 -print)
+    if [[ "$forgeJar" ]]; then
+      export FTB_BASE_DIR=$(dirname "${forgeJar}")
+      log "No entry script found, so building one for ${forgeJar}"
+      cat > "${FTB_BASE_DIR}/ServerStart.sh" <<EOF
+#!/bin/sh
+. ./settings-local.sh
+java \${JAVA_PARAMETERS} -Xmx\${MAX_RAM} -jar $(basename "${forgeJar}") nogui
+EOF
+      chmod +x "${FTB_BASE_DIR}/ServerStart.sh"
+    else
+      log "Please make sure you are using the server version of the FTB modpack!"
+      exit 2
+    fi
+fi
+
+scriptCount=$(find "${FTB_BASE_DIR}" $entryScriptExpr | wc -l)
+if [[ $scriptCount = 0 ]]; then
+    log "Please make sure you are using the server version of the FTB modpack!"
+    exit 2
+elif [[ $scriptCount > 1 ]]; then
+    log "Ambigous startup scripts in FTB modpack!"
+    log "found:"
+    find ${FTB_BASE_DIR} $entryScriptExpr
+    exit 2
+fi
+
+export FTB_SERVER_START=$(find "${FTB_BASE_DIR}" $entryScriptExpr)
+
+export FTB_DIR=$(dirname "${FTB_SERVER_START}")
+chmod a+x "${FTB_SERVER_START}"
+grep fml.queryResult=confirm "${FTB_SERVER_START}" > /dev/null || \
+    sed -i 's/-jar/-Dfml.queryResult=confirm -jar/' "${FTB_SERVER_START}"
+sed -i 's/.*read.*Restart now/#\0/' "${FTB_SERVER_START}"
+legacyJavaFixerPath="${FTB_DIR}/mods/legacyjavafixer.jar"
+
+if isTrue ${FTB_LEGACYJAVAFIXER} && [ ! -e "${legacyJavaFixerPath}" ]; then
+  log "Installing legacy java fixer to ${legacyJavaFixerPath}"
+  curl -sSL -o "${legacyJavaFixerPath}" ${legacyJavaFixerUrl}
+fi
+
+if [ -e "${FTB_DIR}/FTBInstall.sh" ]; then
+  pushd "${FTB_DIR}"
+  sh FTBInstall.sh
+  popd
+elif [ -e "${FTB_DIR}/Install.sh" ]; then
+  pushd "${FTB_DIR}"
+  sh Install.sh
+  popd
+fi
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployCanyon

@@ -0,0 +1,54 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
+: ${CANYON_BUILD:=lastSuccessfulBuild}
+JAVA_VER=$(java -version 2>&1 | head -1 | cut -d'"' -f2 | sed '/^1\./s///' | cut -d'.' -f1)
+
+if [ "${JAVA_VER}" != "8" ]; then
+  log "ERROR: Canyon server type only supports Java version 8"
+  exit 1
+fi
+
+if [ "${VERSION}" != "b1.7.3" ]; then
+  log "ERROR: Canyon server type only supports VERSION=b1.7.3"
+  exit 1
+fi
+
+canyonJob="https://ci.velocitypowered.com/job/Canyon"
+
+buildRelPath=$(
+  curl -fsSL "${canyonJob}/${CANYON_BUILD}/api/json" |
+    jq -r '.artifacts[0].relativePath'
+)
+buildNumber=$(
+  curl -fsSL "${canyonJob}/${CANYON_BUILD}/api/json" |
+    jq -r '.number'
+)
+baseName=$(basename "${buildRelPath}")
+
+# Add build tag to non-tagged builds for version detection
+if [ ${baseName%.*} = 'canyon-server' ]; then
+    export SERVER=${baseName%.*}_build${buildNumber}.jar
+else
+    export SERVER="${baseName}"
+fi
+
+if [ ! -f "$SERVER" ]; then
+    downloadUrl="${canyonJob}/${CANYON_BUILD}/artifact/${buildRelPath}"
+    log "Downloading Canyon build ${buildNumber} from $downloadUrl ..."
+    curl -fsSL -o "$SERVER" "$downloadUrl"
+    if [ ! -f "$SERVER" ]; then
+      log "ERROR: failed to download from $downloadUrl (status=$?)"
+      exit 3
+    fi
+fi
+
+# Normalize on Spigot for later operations
+export TYPE=SPIGOT
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-spiget "$@"

start-deployCatserver

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+set -o pipefail
+set -e
+
+latestAsset=$(
+  curl -fsSL https://api.github.com/repos/Luohuayu/CatServer/releases/latest | \
+    jq '.assets[] | select(.name | match(".*-universal.jar"))'
+)
+
+if [[ -z "${latestAsset}" ]]; then
+  log "ERROR: latest release of Catserver is missing universal.jar asset"
+  exit 1
+fi
+
+isDebugging && log "Latest asset ${latestAsset}"
+latestJarName=$(echo ${latestAsset} | jq --raw-output '.name')
+latestJarId=$(echo ${latestAsset} | jq --raw-output '.id')
+
+
+export SERVER="/data/${latestJarName}"
+
+if [ ! -f ${SERVER} ]; then
+  log "Downloading ${latestJarName}"
+  curl -H "Accept:application/octet-stream" -o "$SERVER" -fsSL https://api.github.com/repos/Luohuayu/CatServer/releases/assets/${latestJarId}
+fi
+
+export SKIP_LOG4J_CONFIG=true
+
+# Continue to Final Setup
+exec ${SCRIPTS:-/}start-setupWorld "$@"

start-deployCustom

@@ -1,29 +1,35 @@
 #!/bin/bash
 
-. /start-utils
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
 
 if isURL ${CUSTOM_SERVER}; then
   filename=$(basename ${CUSTOM_SERVER})
   export SERVER=/data/${filename}
 
   if [[ -f ${SERVER} ]] || [ -n "$FORCE_REDOWNLOAD" ]; then
-    echo "Using previously downloaded jar at ${SERVER}"
+    log "Using previously downloaded jar at ${SERVER}"
   else
-   echo "Downloading custom server jar from ${CUSTOM_SERVER} ..."
+   log "Downloading custom server jar from ${CUSTOM_SERVER} ..."
    if ! curl -sSL -o ${SERVER} ${CUSTOM_SERVER}; then
-      echo "Failed to download from ${CUSTOM_SERVER}"
+      log "Failed to download from ${CUSTOM_SERVER}"
       exit 2
     fi
   fi
 
 elif [[ -f ${CUSTOM_SERVER} ]]; then
-  echo "Using custom server jar at ${CUSTOM_SERVER} ..."
+  export SERVER=${CUSTOM_SERVER}
+
+elif [[ ${GENERIC_PACK} ]]; then
+  log "Using custom server jar from generic pack at ${CUSTOM_SERVER} ..."
   export SERVER=${CUSTOM_SERVER}
 
 else
-  echo "CUSTOM_SERVER is not properly set to a URL or existing jar file"
+  log "CUSTOM_SERVER is not properly set to a URL or existing jar file"
   exit 2
+
 fi
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployFTB

@@ -1,130 +0,0 @@
-#!/bin/bash
-
-. /start-utils
-
-export FTB_BASE_DIR=/data/FeedTheBeast
-legacyJavaFixerUrl=http://ftb.cursecdn.com/FTB2/maven/net/minecraftforge/lex/legacyjavafixer/1.0/legacyjavafixer-1.0.jar
-export TYPE=FEED-THE-BEAST
-
-FTB_SERVER_MOD=${FTB_SERVER_MOD:-$CF_SERVER_MOD}
-
-echo "Looking for Feed-The-Beast / CurseForge server modpack."
-if [[ -z $FTB_SERVER_MOD ]]; then
-    echo "Environment variable FTB_SERVER_MOD not set."
-    echo "Set FTB_SERVER_MOD to the file name of the FTB server modpack."
-    echo "(And place the modpack in the /data directory.)"
-    exit 2
-fi
-
-entryScriptExpr="-name ServerStart.sh -o -name ServerStartLinux.sh -o -name LaunchServer.sh"
-
-if [[ -d ${FTB_BASE_DIR} ]]; then
-  startScriptCount=$(find ${FTB_BASE_DIR} $entryScriptExpr |wc -l)
-  if [[ $startScriptCount > 1 ]]; then
-    echo "Conflicting FTB/CurseForge packages have been installed. Please cleanup ${FTB_BASE_DIR}"
-    exit 2
-  fi
-else
-  startScriptCount=0
-fi
-
-# only download and install if a mod pack isn't already installed
-# also check for the start script rather than just the folder
-# this allows saving just the world separate from the rest of the data directory
-if [[ $startScriptCount = 0 ]]; then
-  srv_modpack=${FTB_SERVER_MOD}
-  if isURL ${srv_modpack}; then
-      case $srv_modpack in
-        https://www.feed-the-beast.com/*/download|https://www.curseforge.com/minecraft/modpacks/*/download/*/file)
-          ;;
-        https://www.curseforge.com/minecraft/modpacks/*/download/*)
-          srv_modpack=${srv_modpack}/file;;
-        https://www.feed-the-beast.com/*)
-          srv_modpack=${srv_modpack}/download;;
-      esac
-      file=$(basename $(dirname $srv_modpack))
-      downloaded=/data/${file}.zip
-      if [ ! -e $downloaded ]; then
-        echo "Downloading FTB modpack...
-  $srv_modpack -> $downloaded"
-        curl -sSL -o $downloaded $srv_modpack
-      fi
-      srv_modpack=$downloaded
-  fi
-  if [[ ${srv_modpack:0:5} == "data/" ]]; then
-      # Prepend with "/"
-      srv_modpack=/${srv_modpack}
-  fi
-  if [[ ! ${srv_modpack:0:1} == "/" ]]; then
-      # If not an absolute path, assume file is in "/data"
-      srv_modpack=/data/${srv_modpack}
-  fi
-  if [[ ! -f ${srv_modpack} ]]; then
-      echo "FTB server modpack ${srv_modpack} not found."
-      exit 2
-  fi
-  if [[ ! ${srv_modpack: -4} == ".zip" ]]; then
-      echo "FTB server modpack ${srv_modpack} is not a zip archive."
-      echo "Please set FTB_SERVER_MOD to a file with a .zip extension."
-      exit 2
-  fi
-
-  echo "Unpacking FTB server modpack ${srv_modpack} ..."
-  mkdir -p ${FTB_BASE_DIR}
-  unzip -o ${srv_modpack} -d ${FTB_BASE_DIR} | awk '{printf "."} END {print ""}'
-fi
-
-if [[ $(find ${FTB_BASE_DIR} $entryScriptExpr | wc -l) = 0 ]]; then
-
-    forgeJar=$(find ${FTB_BASE_DIR} -name 'forge*.jar' -a -not -name 'forge*installer')
-    if [[ "$forgeJar" ]]; then
-      export FTB_BASE_DIR=$(dirname "${forgeJar}")
-      echo "No entry script found, so building one for ${forgeJar}"
-      cat > "${FTB_BASE_DIR}/ServerStart.sh" <<EOF
-#!/bin/sh
-. ./settings-local.sh
-java \${JAVA_PARAMETERS} -Xmx\${MAX_RAM} -jar $(basename "${forgeJar}") nogui
-EOF
-      chmod +x "${FTB_BASE_DIR}/ServerStart.sh"
-    else
-      echo "Please make sure you are using the server version of the FTB modpack!"
-      exit 2
-    fi
-fi
-
-scriptCount=$(find "${FTB_BASE_DIR}" $entryScriptExpr | wc -l)
-if [[ $scriptCount = 0 ]]; then
-    echo "Please make sure you are using the server version of the FTB modpack!"
-    exit 2
-elif [[ $scriptCount > 1 ]]; then
-    echo "Ambigous startup scripts in FTB modpack!"
-    echo "found:"
-    find ${FTB_BASE_DIR} $entryScriptExpr
-    exit 2
-fi
-
-export FTB_SERVER_START=$(find "${FTB_BASE_DIR}" $entryScriptExpr)
-
-export FTB_DIR=$(dirname "${FTB_SERVER_START}")
-chmod a+x "${FTB_SERVER_START}"
-sed -i 's/-jar/-Dfml.queryResult=confirm -jar/' "${FTB_SERVER_START}"
-sed -i 's/.*read.*Restart now/#\0/' "${FTB_SERVER_START}"
-legacyJavaFixerPath="${FTB_DIR}/mods/legacyjavafixer.jar"
-
-if isTrue ${FTB_LEGACYJAVAFIXER} && [ ! -e "${legacyJavaFixerPath}" ]; then
-  echo "Installing legacy java fixer to ${legacyJavaFixerPath}"
-  curl -sSL -o "${legacyJavaFixerPath}" ${legacyJavaFixerUrl}
-fi
-
-if [ -e "${FTB_DIR}/FTBInstall.sh" ]; then
-  pushd "${FTB_DIR}"
-  sh FTBInstall.sh
-  popd
-elif [ -e "${FTB_DIR}/Install.sh" ]; then
-  pushd "${FTB_DIR}"
-  sh Install.sh
-  popd
-fi
-
-# Continue to Final Setup
-exec /start-finalSetup01World $@

start-deployFTBA

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+ftbInstallMarker=".ftb-installed"
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+set -e
+
+if ! [[ -v FTB_MODPACK_ID ]]; then
+  log "ERROR FTB_MODPACK_ID is required with TYPE=FTB"
+  exit 1
+fi
+
+if ! [[ ${FTB_MODPACK_ID} =~ [0-9]+ ]]; then
+  log "ERROR FTB_MODPACK_ID needs to be numeric"
+  exit 1
+fi
+
+if ! [[ -v FTB_MODPACK_VERSION_ID ]]; then
+  if ! FTB_MODPACK_VERSION_ID=$(curl -fsSL https://api.modpacks.ch/public/modpack/${FTB_MODPACK_ID} | jq -r '.versions | sort_by(.updated)[-1].id'); then
+    log "ERROR unable to resolve latest modpack version ID for modpack ${FTB_MODPACK_ID}"
+    exit 1
+  fi
+elif ! [[ ${FTB_MODPACK_VERSION_ID} =~ [0-9]+ ]]; then
+  log "ERROR FTB_MODPACK_VERSION_ID needs to be numeric"
+  exit 1
+fi
+
+if ! [ -f "${ftbInstallMarker}" ] || [ $(cat "${ftbInstallMarker}") != "${FTB_MODPACK_ID}=${FTB_MODPACK_VERSION_ID}" ]; then
+  ftbInstaller=/data/ftb-installer
+  if ! [[ -f "${ftbInstaller}" ]]; then
+    log "Downloading FTB installer"
+    if [ "$(uname -m)" == "aarch64" ]; then
+      log "Downloading ARM installer"
+      curl -fsSL https://api.modpacks.ch/public/modpack/1/1/server/arm/linux -o "${ftbInstaller}"
+    else
+      log "Downloading x86 installer"
+      curl -fsSL https://api.modpacks.ch/public/modpack/1/1/server/linux -o "${ftbInstaller}"
+    fi
+    chmod +x "${ftbInstaller}"
+  fi
+
+  rm -rf forge*jar mods config libraries defaultconfigs changelogs
+
+  log "Installing modpack ID ${FTB_MODPACK_ID}, version ID ${FTB_MODPACK_VERSION_ID}"
+  ${ftbInstaller} ${FTB_MODPACK_ID} ${FTB_MODPACK_VERSION_ID} --noscript --auto
+  rm -f forge*installer.jar
+
+  echo "${FTB_MODPACK_ID}=${FTB_MODPACK_VERSION_ID}" > ${ftbInstallMarker}
+
+  writeEula
+
+  # some modpacks result in --w----r-- permissions
+  chmod a+r version.json
+else
+  log "FTB modpack ID ${FTB_MODPACK_ID}, version ID ${FTB_MODPACK_VERSION_ID} is ready to go"
+fi
+
+isDebugging && cat version.json
+forgeVersion=$(jq -r '.targets|unique[] | select(.name == "forge") | .version' version.json)
+fabricVersion=$(jq -r '.targets|unique[] | select(.name == "fabric") | .version' version.json)
+mcVersion=$(jq -r '.targets|unique[] | select(.name == "minecraft") | .version' version.json)
+
+variants=(
+  forge-${mcVersion}-${forgeVersion}.jar
+  forge-${mcVersion}-${forgeVersion}-universal.jar
+  forge-${mcVersion}-${forgeVersion}-${mcVersion}-universal.jar
+  fabric-${mcVersion}-${fabricVersion}-server-launch.jar
+)
+for f in ${variants[@]}; do
+  if [ -f $f ]; then
+    export SERVER=$f
+    break
+  fi
+done
+if ! [ -v SERVER ]; then
+  log "ERROR unable to locate the installed FTB server jar"
+  ls *.jar
+  exit 2
+fi
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployFabric

@@ -1,72 +1,64 @@
 #!/bin/bash
-set -u
+set -eu
 
+# shellcheck source=start-utils
+. ${SCRIPTS:-/}start-utils
+
+requireVar VANILLA_VERSION
 export TYPE=FABRIC
+export SERVER=fabric-server-${VANILLA_VERSION}.jar
 
-FABRIC_INSTALLER=${FABRIC_INSTALLER:-}
-FABRIC_INSTALLER_URL=${FABRIC_INSTALLER_URL:-}
-FABRICVERSION=${FABRICVERSION:-LATEST}
-if [[ -z $FABRIC_INSTALLER && -z $FABRIC_INSTALLER_URL ]]; then
-  echo "Checking Fabric version information."
-  case $FABRICVERSION in
-    LATEST)
-      curl -fsSL https://maven.fabricmc.net/net/fabricmc/fabric-installer/maven-metadata.xml | xq -c . > /tmp/fabric.json
-      FABRIC_VERSION=$(< /tmp/fabric.json jq -r ".metadata.versioning.release")
-      ;;
+isDebugging && set -x
 
-    *)
-      FABRIC_VERSION=$FABRICVERSION
-      ;;
-  esac
+if [[ ! -e ${SERVER} ]]; then
 
-  FABRIC_INSTALLER="/tmp/fabric-installer-$FABRIC_VERSION.jar"
+  : ${FABRIC_INSTALLER:=}
+  : ${FABRIC_INSTALLER_URL:=}
+  : ${FABRIC_INSTALLER_VERSION:=${FABRICVERSION:-LATEST}}
 
-elif [[ -z $FABRIC_INSTALLER ]]; then
-  FABRIC_INSTALLER="/tmp/fabric-installer.jar"
-elif [[ ! -e $FABRIC_INSTALLER ]]; then
-  echo "ERROR: the given Fabric installer doesn't exist : $FABRIC_INSTALLER"
-  exit 2
-fi
+  if [[ -z $FABRIC_INSTALLER && -z $FABRIC_INSTALLER_URL ]]; then
+    log "Checking Fabric version information."
+    if [[ ${FABRIC_INSTALLER_VERSION^^} = LATEST ]]; then
+      FABRIC_INSTALLER_VERSION=$(maven-metadata-release https://maven.fabricmc.net/net/fabricmc/fabric-installer/maven-metadata.xml)
+    fi
 
-installMarker=".fabric-installed-${FABRIC_VERSION:-manual}"
+    FABRIC_INSTALLER="fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
+    FABRIC_INSTALLER_URL="https://maven.fabricmc.net/net/fabricmc/fabric-installer/${FABRIC_INSTALLER_VERSION}/fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
+  elif [[ -z $FABRIC_INSTALLER ]]; then
+    FABRIC_INSTALLER="fabric-installer.jar"
+  elif [[ ! -e $FABRIC_INSTALLER ]]; then
+    log "ERROR: the given Fabric installer doesn't exist : $FABRIC_INSTALLER"
+    exit 2
+  fi
 
-if [[ ! -e $installMarker ]]; then
   if [[ ! -e $FABRIC_INSTALLER ]]; then
-    if [[ -z $FABRIC_INSTALLER_URL ]]; then
-      echo "Downloading $FABRIC_VERSION"
-      downloadUrl="https://maven.fabricmc.net/net/fabricmc/fabric-installer/$FABRIC_VERSION/fabric-installer-$FABRIC_VERSION.jar"
-      echo "...trying $downloadUrl"
-      curl -o $FABRIC_INSTALLER -fsSL $downloadUrl
-    else
-      echo "Downloading $FABRIC_INSTALLER_URL ..."
-      if ! curl -o $FABRIC_INSTALLER -fsSL $FABRIC_INSTALLER_URL; then
-        echo "Failed to download from given location $FABRIC_INSTALLER_URL"
-        exit 2
-      fi
+    log "Downloading $FABRIC_INSTALLER_URL ..."
+    if ! get -o "$FABRIC_INSTALLER" "$FABRIC_INSTALLER_URL"; then
+      log "Failed to download from given location $FABRIC_INSTALLER_URL"
+      exit 2
     fi
   fi
 
-  echo "Installing Fabric $FABRIC_VERSION using $FABRIC_INSTALLER"
+  log "Installing Fabric ${VANILLA_VERSION} using $FABRIC_INSTALLER"
+
   tries=3
   set +e
   while ((--tries >= 0)); do
-    java -jar $FABRIC_INSTALLER server -mcversion $VANILLA_VERSION -downloadMinecraft
+    java -jar $FABRIC_INSTALLER server \
+      -mcversion $VANILLA_VERSION \
+      -downloadMinecraft \
+      -dir /data
     if [[ $? == 0 ]]; then
       break
     fi
   done
   set -e
   if (($tries < 0)); then
-    echo "Fabric failed to install after several tries." >&2
+    log "Fabric failed to install after several tries." >&2
     exit 10
   fi
-  export SERVER=fabric-server-launch.jar
-  echo "Using server $SERVER"
-  echo $SERVER > $installMarker
 
-else
-  export SERVER=$(< $installMarker)
+  mv fabric-server-launch.jar "${SERVER}"
 fi
 
-# Contineut to Final Setup
-exec /start-finalSetup01World $@
+exec ${SCRIPTS:-/}start-setupWorld "$@"

start-deployForge

@@ -1,84 +1,42 @@
 #!/bin/bash
 
-export TYPE=FORGE
+. ${SCRIPTS:-/}start-utils
+: ${FORGEVERSION:=RECOMMENDED}
+isDebugging && set -x
 
-if [[ -z $FORGE_INSTALLER && -z $FORGE_INSTALLER_URL ]]; then
-  norm=$VANILLA_VERSION
+get_installer() {
+  if [[ -z $FORGE_INSTALLER_URL ]]; then
+    log "Downloading $normForgeVersion"
 
-  case $VANILLA_VERSION in
-    *.*.*)
-      norm=$VANILLA_VERSION ;;
-    *.*)
-      norm=${VANILLA_VERSION}.0 ;;
-  esac
+    forgeFileNames="
+    $normForgeVersion/forge-$normForgeVersion-installer.jar
+    $shortForgeVersion/forge-$shortForgeVersion-installer.jar
+  "
 
-  #################################################################################
-
-  echo "Checking Forge version information."
-  case $FORGEVERSION in
-    RECOMMENDED)
-      curl -fsSL -o /tmp/forge.json http://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
-      FORGE_VERSION=$(cat /tmp/forge.json | jq -r ".promos[\"$VANILLA_VERSION-recommended\"]")
-      if [ $FORGE_VERSION = null ]; then
-        FORGE_VERSION=$(cat /tmp/forge.json | jq -r ".promos[\"$VANILLA_VERSION-latest\"]")
-        if [ $FORGE_VERSION = null ]; then
-          echo "ERROR: Version $VANILLA_VERSION is not supported by Forge"
-          echo "       Refer to http://files.minecraftforge.net/ for supported versions"
-          exit 2
-        fi
-      fi
-      ;;
-
-    *)
-      FORGE_VERSION=$FORGEVERSION
-      ;;
-  esac
-
-  normForgeVersion=$VANILLA_VERSION-$FORGE_VERSION-$norm
-  shortForgeVersion=$VANILLA_VERSION-$FORGE_VERSION
-
-  FORGE_INSTALLER="/tmp/forge-$shortForgeVersion-installer.jar"
-elif [[ -z $FORGE_INSTALLER ]]; then
-  FORGE_INSTALLER="/tmp/forge-installer.jar"
-elif [[ ! -e $FORGE_INSTALLER ]]; then
-  echo "ERROR: the given Forge installer doesn't exist : $FORGE_INSTALLER"
-  exit 2
-fi
-
-installMarker=".forge-installed-$shortForgeVersion"
-
-if [ ! -e $installMarker ]; then
-  if [ ! -e $FORGE_INSTALLER ]; then
-
-    if [[ -z $FORGE_INSTALLER_URL ]]; then
-      echo "Downloading $normForgeVersion"
-
-      forgeFileNames="
-      $normForgeVersion/forge-$normForgeVersion-installer.jar
-      $shortForgeVersion/forge-$shortForgeVersion-installer.jar
-      END
-    "
-      for fn in $forgeFileNames; do
-        if [ $fn == END ]; then
-          echo "Unable to compute URL for $normForgeVersion"
-          exit 2
-        fi
-        downloadUrl=http://files.minecraftforge.net/maven/net/minecraftforge/forge/$fn
-        echo "...trying $downloadUrl"
-        if curl -o $FORGE_INSTALLER -fsSL $downloadUrl; then
-          break
-        fi
-      done
-    else
-      echo "Downloading $FORGE_INSTALLER_URL ..."
-      if ! curl -o $FORGE_INSTALLER -fsSL $FORGE_INSTALLER_URL; then
-        echo "Failed to download from given location $FORGE_INSTALLER_URL"
-        exit 2
+    for fn in $forgeFileNames; do
+      downloadUrl=https://maven.minecraftforge.net/net/minecraftforge/forge/$fn
+      log "...trying $downloadUrl"
+      if curl -o $FORGE_INSTALLER -fsSL $downloadUrl; then
+        return
       fi
+    done
+    log "Unable to locate usable URL for $normForgeVersion"
+    exit 2
+ else
+    log "Downloading $FORGE_INSTALLER_URL ..."
+    if ! curl -o $FORGE_INSTALLER -fsSL $FORGE_INSTALLER_URL; then
+      log "Failed to download from given location $FORGE_INSTALLER_URL"
+      exit 2
     fi
   fi
+}
 
-  echo "Installing Forge $shortForgeVersion using $FORGE_INSTALLER"
+install() {
+  if [ ! -e $FORGE_INSTALLER ]; then
+    get_installer $normForgeVersion $shortForgeVersion
+  fi
+
+  log "Installing Forge $shortForgeVersion using $FORGE_INSTALLER"
   mkdir -p mods
   tries=3
   while ((--tries >= 0)); do
@@ -88,27 +46,90 @@ if [ ! -e $installMarker ]; then
     fi
   done
   if (($tries < 0)); then
-    echo "Forge failed to install after several tries." >&2
+    log "Forge failed to install after several tries." >&2
     exit 10
   fi
   # NOTE $shortForgeVersion will be empty if installer location was given to us
-  echo "Finding installed server jar..."
+  log "Finding installed server jar..."
   unset -v latest
   for file in *forge*.jar; do
-    [[ $file =~ installer ]] || [[ $file -nt $latest ]] && latest=$file
+    if ! [[ $file =~ installer ]]; then
+      if [[ -z $latest ]] || [[ $file -nt $latest ]]; then
+        latest=$file
+      fi
+    fi
   done
   if [[ -z $latest ]]; then
-    echo "Unable to derive server jar for Forge"
+    log "Unable to derive server jar for Forge"
     exit 2
   fi
 
   export SERVER=$latest
-  echo "Using server $SERVER"
+  log "Using server $SERVER"
   echo $SERVER > $installMarker
+}
 
+resolve_versions() {
+  if [[ -z $FORGE_INSTALLER && -z $FORGE_INSTALLER_URL ]]; then
+    norm=$VANILLA_VERSION
+
+    case $VANILLA_VERSION in
+      *.*.*)
+        norm=$VANILLA_VERSION ;;
+      *.*)
+        norm=${VANILLA_VERSION}.0 ;;
+    esac
+
+    #################################################################################
+
+    log "Checking Forge version information."
+    case $FORGEVERSION in
+      RECOMMENDED)
+        curl -fsSL -o /tmp/forge.json http://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
+        FORGE_VERSION=$(cat /tmp/forge.json | jq -r ".promos[\"$VANILLA_VERSION-recommended\"]")
+        if [ $FORGE_VERSION = null ]; then
+          FORGE_VERSION=$(cat /tmp/forge.json | jq -r ".promos[\"$VANILLA_VERSION-latest\"]")
+          if [ $FORGE_VERSION = null ]; then
+            log "ERROR: Version $VANILLA_VERSION is not supported by Forge"
+            log "       Refer to http://files.minecraftforge.net/ for supported versions"
+            exit 2
+          fi
+        fi
+        ;;
+
+      *)
+        FORGE_VERSION=$FORGEVERSION
+        ;;
+    esac
+
+    normForgeVersion=$VANILLA_VERSION-$FORGE_VERSION-$norm
+    shortForgeVersion=$VANILLA_VERSION-$FORGE_VERSION
+
+    FORGE_INSTALLER="/tmp/forge-$shortForgeVersion-installer.jar"
+  elif [[ -z $FORGE_INSTALLER ]]; then
+    FORGE_INSTALLER="/tmp/forge-installer.jar"
+  elif [[ ! -e $FORGE_INSTALLER ]]; then
+    log "ERROR: the given Forge installer doesn't exist : $FORGE_INSTALLER"
+    exit 2
+  else
+    shortForgeVersion=$VANILLA_VERSION-${FORGE_INSTALLER_CUSTOM_VERSION:-custom}
+  fi
+}
+
+### main
+
+resolve_versions
+
+installMarker="/data/.forge-installed-$shortForgeVersion"
+
+if [ ! -e $installMarker ]; then
+  install
 else
   export SERVER=$(cat $installMarker)
+  if [ ! -e "$SERVER" ] && versionLessThan 1.17; then
+    rm "$installMarker"
+    install
+  fi
 fi
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployLimbo

@@ -0,0 +1,63 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
+: ${LIMBO_BUILD:=LATEST}
+: ${FORCE_REDOWNLOAD:=false}
+: ${LIMBO_SCHEMA_FILENAME:=default.schem}
+: ${LEVEL:=Default;${LIMBO_SCHEMA_FILENAME}}
+# defaults to localhost, if this is not set
+: ${SERVER_IP:=0.0.0.0}
+
+export LEVEL SERVER_IP
+
+if [[ ${LIMBO_BUILD^^} == LATEST ]]; then
+  LIMBO_BUILD=lastStableBuild
+fi
+
+baseUrl="https://ci.loohpjames.com/job/Limbo/${LIMBO_BUILD}"
+buildInfoUrl="${baseUrl}/api/json"
+buildJson=$(curl -fsSL "${buildInfoUrl}")
+if [ $? != 0 ]; then
+  log "ERROR failed to get build info from ${buildInfoUrl} (status=$?)"
+  exit 1
+fi
+
+if [[ ${LIMBO_BUILD} = lastStableBuild ]]; then
+  LIMBO_BUILD=$(jq -r '.number' <<<${buildJson})
+  log "Resolved latest Limbo build to ${LIMBO_BUILD}"
+fi
+artifactPath=$(jq -r '.artifacts[] | select(.fileName|test("^Limbo-")) | .relativePath' <<<${buildJson})
+defaultSchemaPath=$(jq -r '.artifacts[] | select(.fileName|test(".*\\.schem")) | .relativePath' <<<${buildJson})
+
+export SERVER="limbo-${LIMBO_BUILD}.jar"
+
+if [ ! -f "$SERVER" ] || isTrue "$FORCE_REDOWNLOAD"; then
+    downloadUrl="${baseUrl}/artifact/${artifactPath}"
+    log "Downloading Limbo from $downloadUrl ..."
+    if ! curl -fsSL -o "$SERVER" "$downloadUrl"; then
+      log "ERROR: failed to download from $downloadUrl (status=$?)"
+      exit 3
+    fi
+
+fi
+
+if [ ! -f "${LIMBO_SCHEMA_FILENAME}" ]; then
+  log "Downloading default schem file"
+  if ! curl -o "${LIMBO_SCHEMA_FILENAME}" -fsSL "${baseUrl}/artifact/${defaultSchemaPath}"; then
+      log "ERROR: failed to download schema file $baseUrl (status=$?)"
+      exit 3
+  fi
+fi
+
+if [[ ${LEVEL} != *\;* ]]; then
+  LEVEL="${LEVEL};${LIMBO_SCHEMA_FILENAME}"
+fi
+export LEVEL
+
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployMagma

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+export SKIP_LOG4J_CONFIG=true
+
+isDebugging && set -x
+
+: ${VANILLA_VERSION?}
+# stable, dev
+: ${MAGMA_CHANNEL:=stable}
+
+
+magmaDownloadServer() {
+  url=${1?}
+  tagName=${2?}
+  markerFile=${3?}
+
+  export SERVER="/data/magma-server-${VANILLA_VERSION}.jar"
+
+  log "Downloading Magma server file for ${VANILLA_VERSION} @ ${tagName}"
+  if ! curl -o /data/magma-server-${VANILLA_VERSION}.jar -fsSL "$url"; then
+    log "ERROR failed to download Magma server from $url (status=$?)"
+    exit 1
+  fi
+
+  echo -n "$SERVER" > "$markerFile"
+}
+
+magmaHandleInstaller() {
+  url=${1?}
+  tagName=${2?}
+  markerFile=${3?}
+
+  installerFile="magma-installer-${VANILLA_VERSION}-${tagName}.jar"
+  log "Downloading Magma installer file for ${VANILLA_VERSION} @ ${tagName}"
+  if ! curl -o "$installerFile" -fsSL "$url"; then
+    log "ERROR failed to download Magma installer from $url (status=$?)"
+    exit 1
+  fi
+
+  echo "forge" > "$markerFile"
+
+  export FORGE_INSTALLER="$installerFile"
+  export FORGE_INSTALLER_CUSTOM_VERSION="$tagName"
+
+  # now hand off the rest to forge
+  exec ${SCRIPTS:-/}start-deployForge "$@"
+}
+
+latestMeta=$(curl -fsSL https://api.magmafoundation.org/api/resources/Magma/${VANILLA_VERSION}/${MAGMA_CHANNEL}/latest || exit $?)
+if [ $? != 0 ]; then
+  log "ERROR failed to locate latest Magma info for ${VANILLA_VERSION} in channel ${MAGMA_CHANNEL} (error=$?)"
+  exit 1
+fi
+
+tagName=$(echo "${latestMeta}" | jq -r '.tag_name')
+markerFile=".magma-installed-${VANILLA_VERSION}-${tagName}"
+if [ -f "${markerFile}" ]; then
+  installedTagName=$(cat "${markerFile}")
+fi
+
+if [ ! -f "${markerFile}" ]; then
+
+  if versionLessThan 1.16; then
+    assetType=server
+  else
+    assetType=installer
+  fi
+
+  assetUrl=$(echo "${latestMeta}" | jq -r ".assets | .[].browser_download_url | select(test(\"${assetType}\"))")
+  if [ $? != 0 ] || [ -z "$assetUrl" ]; then
+    log "ERROR failed to extract ${assetType} asset type for ${VANILLA_VERSION} in channel ${MAGMA_CHANNEL}"
+    exit 1
+  fi
+
+  if [[ ${assetType} = server ]]; then
+    magmaDownloadServer "$assetUrl" "$tagName" "$markerFile"
+  else
+    magmaHandleInstaller "$assetUrl" "$tagName" "$markerFile"
+  fi
+else
+  export SERVER=$(cat "${markerFile}")
+
+  if [[ $SERVER == "forge" ]]; then
+    export FORGE_INSTALLER="magma-installer-${VANILLA_VERSION}-${tagName}.jar"
+    export FORGE_INSTALLER_CUSTOM_VERSION="$tagName"
+    # now hand off the rest to forge
+    exec ${SCRIPTS:-/}start-deployForge "$@"
+  fi
+fi
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployMohist

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+set -o pipefail
+set -e
+isDebugging && set -x
+
+requireVar VANILLA_VERSION
+: ${MOHIST_BUILD:=lastSuccessfulBuild}
+
+mohistJobs=https://ci.codemc.io/job/MohistMC/job/
+mohistJob=${mohistJobs}Mohist-${VANILLA_VERSION}/
+
+if ! curl -X HEAD -o /dev/null -fsSL "${mohistJob}"; then
+  log "ERROR: mohist builds do not exist for ${VANILLA_VERSION}"
+  log "       check https://ci.codemc.io/job/MohistMC/ for available versions"
+  log "       and set VERSION accordingly"
+  exit 1
+fi
+
+buildRelPath=$(
+  curl -fsSL "${mohistJob}${MOHIST_BUILD}/api/json" |
+    jq -r '.artifacts[0].relativePath'
+)
+
+baseName=$(basename "${buildRelPath}")
+if [[ ${baseName} != *-server.jar* ]]; then
+  log "ERROR: mohist build for ${VANILLA_VERSION} is not a valid server jar, found ${baseName}"
+  log "       check https://ci.codemc.io/job/MohistMC/ for available versions"
+  log "       and set VERSION accordingly"
+  exit 1
+fi
+
+export SERVER="/data/${baseName}"
+
+if [ ! -f ${SERVER} ]; then
+  log "Downloading ${baseName}"
+  curl -o "${SERVER}" -fsSL "${mohistJob}${MOHIST_BUILD}/artifact/${buildRelPath}"
+fi
+
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-setupWorld "$@"

start-deployPaper

@@ -1,18 +1,79 @@
 #!/bin/bash
 
-export SERVER=paper_server.jar
-if [ ! -f $SERVER ] || [ -n "$FORCE_REDOWNLOAD" ]; then
-    downloadUrl=${PAPER_DOWNLOAD_URL:-https://papermc.io/api/v1/paper/${VANILLA_VERSION}/latest/download}
-    echo "Downloading Paper $VANILLA_VERSION from $downloadUrl ..."
-    curl -fsSL -o $SERVER "$downloadUrl"
-    if [ ! -f $SERVER ]; then
-      echo "ERROR: failed to download from $downloadUrl (status=$?)"
-      exit 3
-    fi
+. ${SCRIPTS:-/}start-utils
+set -o pipefail
+isDebugging && set -x
+
+if [[ $PAPER_DOWNLOAD_URL ]]; then
+  export SERVER=$(getFilenameFromUrl "${PAPER_DOWNLOAD_URL}")
+
+  if [ -f "$SERVER" ]; then
+    zarg=(-z "$SERVER")
+  fi
+
+  echo "Preparing custom PaperMC jar from $PAPER_DOWNLOAD_URL"
+
+  curl -fsSL -o "$SERVER" "${zarg[@]}" "${PAPER_DOWNLOAD_URL}"
+else
+  # PaperMC API v2 docs : https://papermc.io/api/docs/swagger-ui/index.html?configUrl=/api/openapi/swagger-config
+
+  build=${PAPERBUILD:=$(curl -fsSL "https://papermc.io/api/v2/projects/paper/versions/${VANILLA_VERSION}" -H  "accept: application/json" \
+   | jq '.builds[-1]')}
+  case $? in
+    0)
+      ;;
+    22)
+      versions=$(curl -fsSL "https://papermc.io/api/v2/projects/paper" -H  "accept: application/json")
+      if [[ $VERSION = LATEST ]]; then
+          VANILLA_VERSION=$(echo "$versions" | jq -r '.versions[-1]')
+          log "WARN: using ${VANILLA_VERSION} since that's the latest provided by PaperMC"
+          # re-execute the current script with the newly computed version
+          exec "$0" "$@"
+      fi
+      log "ERROR: ${VANILLA_VERSION} is not published by PaperMC"
+      log "       Set VERSION to one of the following: "
+      log "       $(echo "$versions" | jq -r '.versions | join(", ")')"
+      exit 1
+      ;;
+    *)
+      echo "ERROR: unknown error while looking up PaperMC version=${VANILLA_VERSION}"
+      exit 1
+      ;;
+  esac
+  if [ $? != 0 ]; then
+    echo "ERROR: failed to lookup PaperMC build from version ${VANILLA_VERSION}"
+    exit 1
+  fi
+
+  export SERVER=$(curl -fsSL "https://papermc.io/api/v2/projects/paper/versions/${VANILLA_VERSION}/builds/${build}" -H  "accept: application/json" \
+   | jq -r '.downloads.application.name')
+  if [ $? != 0 ]; then
+    echo "ERROR: failed to lookup PaperMC download file from version=${VANILLA_VERSION} build=${build}"
+    exit 1
+  fi
+
+  if [ -f "$SERVER" ]; then
+    zarg=(-z "$SERVER")
+  fi
+
+  log "Removing old PaperMC versions ..."
+  shopt -s nullglob
+  for f in paper-*.jar; do
+    [[ $f != $SERVER ]] && rm $f
+  done
+
+  log "Downloading PaperMC $VANILLA_VERSION (build $build) ..."
+  curl -fsSL -o "$SERVER" "${zarg[@]}" \
+    "https://papermc.io/api/v2/projects/paper/versions/${VANILLA_VERSION}/builds/${build}/downloads/${SERVER}" \
+    -H  "accept: application/java-archive"
+  if [ $? != 0 ]; then
+    echo "ERROR: failed to download PaperMC from version=${VANILLA_VERSION} build=${build} download=${SERVER}"
+    exit 1
+  fi
 fi
 
-# Normalize on Spigot for operations below
+# Normalize on Spigot for downstream operations
 export TYPE=SPIGOT
+export SKIP_LOG4J_CONFIG=true
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+exec ${SCRIPTS:-/}start-spiget "$@"

start-deployPurpur

@@ -0,0 +1,37 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
+: ${VANILLA_VERSION:?}
+: ${PURPUR_BUILD:=LATEST}
+: ${FORCE_REDOWNLOAD:=false}
+
+if [[ ${PURPUR_BUILD} == LATEST ]]; then
+  PURPUR_BUILD=$(curl -fsSL "https://api.pl3x.net/v2/purpur/${VANILLA_VERSION}" |
+    jq -r '.builds.latest' || echo "")
+  if [[ -z ${PURPUR_BUILD} ]]; then
+    log "ERROR: Failed to locate a Purpur build for ${VANILLA_VERSION}."
+    log "       Please check if a download is available at https://purpur.pl3x.net/downloads/"
+    exit 3
+  fi
+fi
+
+export SERVER="purpur-${VANILLA_VERSION}-${PURPUR_BUILD}.jar"
+
+if [ ! -f "$SERVER" ] || isTrue "$FORCE_REDOWNLOAD"; then
+    downloadUrl="https://api.pl3x.net/v2/purpur/${VANILLA_VERSION}/${PURPUR_BUILD}/download"
+    log "Downloading Purpur from $downloadUrl ..."
+    if ! curl -fsSL -o "$SERVER" "$downloadUrl"; then
+      log "ERROR: failed to download from $downloadUrl (status=$?)"
+      exit 3
+    fi
+fi
+
+# Normalize on Spigot for later operations
+export TYPE=SPIGOT
+export SKIP_LOG4J_CONFIG=true
+
+exec ${SCRIPTS:-/}start-spiget "$@"

start-deploySpongeVanilla

@@ -1,9 +1,13 @@
 #!/bin/bash
 
+. ${SCRIPTS:-/}start-utils
+
 export TYPE=spongevanilla
+: ${SPONGEBRANCH:=STABLE}
+: ${SPONGEVERSION:=}
 
 # Parse branch
-echo "Choosing branch for Sponge"
+log "Choosing branch for Sponge"
 case "$SPONGEBRANCH" in
 
   EXPERIMENTAL|experimental|BLEEDING|bleeding)
@@ -18,7 +22,7 @@ esac
 
 # If not SPONGEVERSION selected, detect last version on selected branch
 if [ -z $SPONGEVERSION ]; then
-  echo "Choosing Version for Sponge"
+  log "Choosing Version for Sponge"
   if [ "$SPONGEBRANCH" == "stable" ]; then
     export SPONGEVERSION=`curl -fsSL https://dl-api.spongepowered.org/v1/org.spongepowered/$TYPE | jq -r '.buildTypes.stable.latest.version'`
   else
@@ -29,9 +33,8 @@ fi
 export SERVER="spongevanilla-$SPONGEVERSION.jar"
 
 if [ ! -e $SERVER ] || [ -n "$FORCE_REDOWNLOAD" ]; then
-  echo "Downloading $SERVER ..."
+  log "Downloading $SERVER ..."
   curl -sSL -o $SERVER https://repo.spongepowered.org/maven/org/spongepowered/$TYPE/$SPONGEVERSION/$SERVER
 fi
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+exec ${SCRIPTS:-/}start-setupWorld $@

start-deployVanilla

@@ -1,43 +1,46 @@
 #!/bin/bash
 
-. /start-utils
+# shellcheck source=start-utils
+. "${SCRIPTS:-/}start-utils"
+isDebugging && set -x
 set -o pipefail
 
 export SERVER="minecraft_server.${VANILLA_VERSION// /_}.jar"
 
-if [ ! -e $SERVER ] || [ -n "$FORCE_REDOWNLOAD" ]; then
-  echo "Downloading $SERVER ..."
+if [ ! -e "$SERVER" ] || [ -n "$FORCE_REDOWNLOAD" ]; then
+  log "Downloading $SERVER ..."
   debug "Finding version manifest for $VANILLA_VERSION"
-  versionManifestUrl=$(curl -fsSL 'https://launchermeta.mojang.com/mc/game/version_manifest.json' | jq --arg VANILLA_VERSION "$VANILLA_VERSION" --raw-output '[.versions[]|select(.id == $VANILLA_VERSION)][0].url')
+  versionManifestUrl=$(get 'https://launchermeta.mojang.com/mc/game/version_manifest.json' | jq --arg VANILLA_VERSION "$VANILLA_VERSION" --raw-output '[.versions[]|select(.id == $VANILLA_VERSION)][0].url')
   result=$?
   if [ $result != 0 ]; then
-    echo "ERROR failed to obtain version manifest URL ($result)"
+    log "ERROR failed to obtain version manifest URL ($result)"
     exit 1
   fi
-  if [ $versionManifestUrl = "null" ]; then
-    echo "ERROR couldn't find a matching manifest entry for $VANILLA_VERSION"
+  if [ "$versionManifestUrl" = "null" ]; then
+    log "ERROR couldn't find a matching manifest entry for $VANILLA_VERSION"
     exit 1
   fi
   debug "Found version manifest at $versionManifestUrl"
 
-  serverDownloadUrl=$(curl -fsSL ${versionManifestUrl} | jq --raw-output '.downloads.server.url')
+  serverDownloadUrl=$(get --json-path '$.downloads.server.url' "${versionManifestUrl}")
   result=$?
   if [ $result != 0 ]; then
-    echo "ERROR failed to obtain version manifest from $versionManifestUrl ($result)"
+    log "ERROR failed to obtain version manifest from $versionManifestUrl ($result)"
+    exit 1
+  elif [ "$serverDownloadUrl" = "null" ]; then
+    log "ERROR version $VANILLA_VERSION does not provide a server download"
     exit 1
   fi
 
   debug "Downloading server from $serverDownloadUrl"
-  if isDebugging; then
-    verbose=-v
-  fi
-  curl $verbose -fsSL -o $SERVER $serverDownloadUrl
+  get -o "$SERVER" "$serverDownloadUrl"
   result=$?
   if [ $result != 0 ]; then
-    echo "ERROR failed to download server from $serverDownloadUrl ($result)"
+    log "ERROR failed to download server from $serverDownloadUrl ($result)"
     exit 1
   fi
 fi
 
-# Continue to Final Setup
-exec /start-finalSetup01World $@
+isDebugging && ls -l
+
+exec "${SCRIPTS:-/}start-setupWorld" "$@"

start-finalExec

@@ -0,0 +1,268 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+isDebugging && set -x
+
+if [ -n "$OPS" ]; then
+  log "Updating ops"
+  rm -f /data/ops.txt.converted
+  echo $OPS | awk -v RS=, '{print}' > /data/ops.txt
+fi
+if isTrue "${OVERRIDE_OPS}"; then
+  log "Recreating ops.json file at server startup"
+  rm -f /data/ops.json
+fi
+
+if [ -n "$WHITELIST" ]; then
+  log "Updating whitelist"
+  rm -f /data/white-list.txt.converted
+  echo $WHITELIST | awk -v RS=, '{print}' > /data/white-list.txt
+fi
+if isTrue "${OVERRIDE_WHITELIST}"; then
+  log "Recreating whitelist.json file at server startup"
+  rm -f /data/whitelist.json
+fi
+
+if [ -n "$ICON" ]; then
+    if [ ! -e server-icon.png ] || [ "${OVERRIDE_ICON}" == "TRUE" ]; then
+      log "Using server icon from $ICON..."
+      # Not sure what it is yet...call it "img"
+      curl -sSL -o /tmp/icon.img $ICON
+      specs=$(identify /tmp/icon.img | awk '{print $2,$3}')
+      if [ "$specs" = "PNG 64x64" ]; then
+        mv /tmp/icon.img /data/server-icon.png
+      else
+        log "Converting image to 64x64 PNG..."
+        convert /tmp/icon.img -resize 64x64! /data/server-icon.png
+      fi
+    fi
+fi
+
+if isTrue ${ENABLE_ROLLING_LOGS:-false}; then
+  # Set up log configuration
+  LOGFILE="/data/log4j2.xml"
+  if [ ! -e "$LOGFILE" ]; then
+    log "Creating log4j2.xml in ${LOGFILE}"
+    cp /tmp/log4j2.xml "$LOGFILE"
+  else
+    log "log4j2.xml already created, skipping"
+  fi
+  JVM_OPTS="-Dlog4j.configurationFile=/data/log4j2.xml ${JVM_OPTS}"
+fi
+
+# Make sure files exist and are valid JSON (for pre-1.12 to 1.12 upgrades)
+log "Checking for JSON files."
+JSON_FILES=$(find /data -maxdepth 1 -name '*.json')
+for j in $JSON_FILES; do
+  if [[ $(cat "$j" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//') == "" ]]; then
+    log "Fixing JSON $j"
+    echo '[]' > $j
+  fi
+done
+
+# Optional disable console
+if versionLessThan 1.14 && [[ ${CONSOLE,,} = false ]]; then
+  EXTRA_ARGS+=" --noconsole"
+fi
+
+# Optional disable GUI for headless servers
+if [[ ${GUI} = false || ${GUI} = FALSE ]]; then
+  EXTRA_ARGS+=" nogui"
+fi
+
+# put these prior JVM_OPTS at the end to give any memory settings there higher precedence
+log "Setting initial memory to ${INIT_MEMORY:=${MEMORY}} and max to ${MAX_MEMORY:=${MEMORY}}"
+
+expandedDOpts=
+if [ -n "$JVM_DD_OPTS" ]; then
+      for dopt in $JVM_DD_OPTS
+      do
+          expandedDOpts="${expandedDOpts} -D${dopt/:/=}"
+      done
+fi
+
+if isTrue ${ENABLE_JMX}; then
+  : ${JMX_PORT:=7091}
+  JVM_OPTS="${JVM_OPTS}
+  -Dcom.sun.management.jmxremote.local.only=false
+  -Dcom.sun.management.jmxremote.port=${JMX_PORT}
+  -Dcom.sun.management.jmxremote.rmi.port=${JMX_PORT}
+  -Dcom.sun.management.jmxremote.authenticate=false
+  -Dcom.sun.management.jmxremote.ssl=false
+  -Dcom.sun.management.jmxremote.host=${JMX_BINDING:-0.0.0.0}
+  -Djava.rmi.server.hostname=${JMX_HOST:-localhost}"
+
+  log "JMX is enabled. Make sure you have port forwarding for ${JMX_PORT}"
+fi
+
+if isTrue "${USE_AIKAR_FLAGS}"; then
+  # From https://mcflags.emc.gs/
+
+  if (( $(normalizeMemSize "${MAX_MEMORY}") >= $(normalizeMemSize 12g) )); then
+    log "Using Aikar's >12GB flags"
+    G1NewSizePercent=40
+    G1MaxNewSizePercent=50
+    G1HeapRegionSize=16M
+    G1ReservePercent=15
+    InitiatingHeapOccupancyPercent=20
+  else
+    log "Using Aikar's flags"
+    G1NewSizePercent=30
+    G1MaxNewSizePercent=40
+    G1HeapRegionSize=8M
+    G1ReservePercent=20
+    InitiatingHeapOccupancyPercent=15
+  fi
+
+  JVM_XX_OPTS="${JVM_XX_OPTS}
+  -XX:+UseG1GC
+  -XX:+ParallelRefProcEnabled
+  -XX:MaxGCPauseMillis=200
+  -XX:+UnlockExperimentalVMOptions
+  -XX:+DisableExplicitGC
+  -XX:+AlwaysPreTouch
+  -XX:G1NewSizePercent=${G1NewSizePercent}
+  -XX:G1MaxNewSizePercent=${G1MaxNewSizePercent}
+  -XX:G1HeapRegionSize=${G1HeapRegionSize}
+  -XX:G1ReservePercent=${G1ReservePercent}
+  -XX:G1HeapWastePercent=5
+  -XX:G1MixedGCCountTarget=4
+  -XX:InitiatingHeapOccupancyPercent=${InitiatingHeapOccupancyPercent}
+  -XX:G1MixedGCLiveThresholdPercent=90
+  -XX:G1RSetUpdatingPauseTimePercent=5
+  -XX:SurvivorRatio=32
+  -XX:+PerfDisableSharedMem
+  -XX:MaxTenuringThreshold=1
+  -Dusing.aikars.flags=https://mcflags.emc.gs
+  -Daikars.new.flags=true
+  "
+fi
+
+if isTrue "${USE_LARGE_PAGES}"; then
+  JVM_XX_OPTS="${JVM_XX_OPTS}
+  -XX:+UseLargePagesInMetaspace
+  "
+fi
+
+if isTrue "${USE_FLARE_FLAGS}"; then
+  JVM_XX_OPTS="${JVM_XX_OPTS}
+  -XX:+UnlockDiagnosticVMOptions
+  -XX:+DebugNonSafepoints
+  "
+fi
+
+if isTrue "${DEBUG_MEMORY}"; then
+  log "Memory usage and availability (in MB)"
+  uname -a
+  free -m
+fi
+
+JVM_OPTS="-Xms${INIT_MEMORY} -Xmx${MAX_MEMORY} ${JVM_OPTS}"
+
+function copyFilesForCurseForge() {
+  # copy player modification files unconditionally since their
+  # processing into json is additive anyway
+  [ -f /data/ops.txt ] && cp -f /data/ops.txt "${FTB_DIR}/"
+  [ -f /data/white-list.txt ] && cp -f /data/white-list.txt "${FTB_DIR}/"
+
+  if [ ! -e "${FTB_DIR}/server-icon.png" -a -e /data/server-icon.png ]; then
+    cp -f /data/server-icon.png "${FTB_DIR}/"
+  fi
+
+  cp -f /data/eula.txt "${FTB_DIR}/"
+}
+
+mcServerRunnerArgs=(
+--stop-duration "${STOP_DURATION:-60}s"
+--named-pipe "${CONSOLE_IN_NAMED_PIPE:-/tmp/minecraft-console-in}"
+)
+if [[ ${STOP_SERVER_ANNOUNCE_DELAY} ]]; then
+  mcServerRunnerArgs+=(--stop-server-announce-delay "${STOP_SERVER_ANNOUNCE_DELAY}s")
+fi
+
+if [[ ${TYPE} == "CURSE_INSTANCE" ]]; then
+    if isTrue ${DEBUG_EXEC}; then
+      set -x
+    fi
+    exec mc-server-runner "${mcServerRunnerArgs[@]}" \
+      --cf-instance-file "${CURSE_INSTANCE_JSON}" \
+      java $JVM_XX_OPTS $JVM_OPTS $expandedDOpts -jar _SERVERJAR_ "$@" $EXTRA_ARGS
+elif [[ ${TYPE} == "CURSEFORGE" && "${SERVER}" ]]; then
+  copyFilesForCurseForge
+
+  cd "${FTB_DIR}" || (log "ERROR: can't go into ${FTB_DIR}"; exit 1)
+  log "Starting CurseForge server in ${FTB_DIR}..."
+  if isTrue ${DEBUG_EXEC}; then
+    set -x
+  fi
+  exec mc-server-runner ${bootstrapArgs} "${mcServerRunnerArgs[@]}" java $JVM_XX_OPTS $JVM_OPTS $expandedDOpts -jar $(basename "${SERVER}") "$@" $EXTRA_ARGS
+elif [[ ${TYPE} == "CURSEFORGE" ]]; then
+  mcServerRunnerArgs+=(--shell bash)
+
+  copyFilesForCurseForge
+
+  cat > "${FTB_DIR}/settings-local.sh" <<EOF
+export MIN_RAM="${INIT_MEMORY}"
+export MAX_RAM="${MAX_MEMORY}"
+export JAVA_PARAMETERS="${JVM_XX_OPTS} -Xms${INIT_MEMORY} ${JVM_OPTS} $expandedDOpts"
+EOF
+
+  # patch CurseForge cfg file, if present
+  if [ -f "${FTB_DIR}/settings.cfg" ]; then
+    sed -i "s/MAX_RAM=[^;]*/MAX_RAM=${MAX_MEMORY}/" "${FTB_DIR}/settings.cfg"
+  fi
+
+  cd "${FTB_DIR}" || (log "ERROR: can't go into ${FTB_DIR}"; exit 1)
+  log "Running FTB ${FTB_SERVER_START} in ${FTB_DIR} ..."
+
+  finalArgs="${FTB_SERVER_START}"
+
+  if isTrue ${SETUP_ONLY:=false}; then
+    echo "SETUP_ONLY: ${finalArgs}"
+    exit
+  fi
+
+  if isTrue ${DEBUG_EXEC}; then
+    set -x
+  fi
+  if isTrue ${EXEC_DIRECTLY:-false}; then
+    "${finalArgs[@]}"
+  else
+    exec mc-server-runner "${mcServerRunnerArgs[@]}" "${finalArgs[@]}"
+  fi
+elif [[ -x run.sh ]]; then
+  log "Using Forge supplied run.sh script..."
+  echo $JVM_XX_OPTS $JVM_OPTS $expandedDOpts > user_jvm_args.txt
+  exec mc-server-runner "${mcServerRunnerArgs[@]}" --shell bash run.sh
+else
+  # If we have a bootstrap.txt file... feed that in to the server stdin
+  if [ -f /data/bootstrap.txt ]; then
+    bootstrapArgs="--bootstrap /data/bootstrap.txt"
+  fi
+
+  log "Starting the Minecraft server..."
+
+  finalArgs=(
+    $JVM_XX_OPTS
+    $JVM_OPTS
+    $expandedDOpts
+    -jar "$SERVER"
+    "$@" $EXTRA_ARGS
+  )
+
+  if isTrue ${SETUP_ONLY:=false}; then
+    echo "SETUP_ONLY: java ${finalArgs[*]}"
+    exit
+  fi
+
+  if isTrue ${DEBUG_EXEC}; then
+    set -x
+  fi
+
+  if isTrue ${EXEC_DIRECTLY:-false}; then
+    exec java "${finalArgs[@]}"
+  else
+    exec mc-server-runner ${bootstrapArgs} "${mcServerRunnerArgs[@]}" java "${finalArgs[@]}"
+  fi
+fi
+

start-finalSetup01World

@@ -1,50 +0,0 @@
-#!/bin/bash
-
-if [ $TYPE = "FEED-THE-BEAST" ]; then
-  worldDest=$FTB_BASE_DIR/$LEVEL
-else
-  worldDest=/data/$LEVEL
-fi
-
-# If no world exists and a URL for a world is supplied, download it and unpack
-if [[ "$WORLD" ]] && [ ! -d "$worldDest" ]; then
-case "X$WORLD" in
-  X[Hh][Tt][Tt][Pp]*)
-    echo "Downloading world from $WORLD"
-    curl -sSL -o - "$WORLD" > /data/world.zip
-    echo "Unzipping world"
-    unzip -o -q /data/world.zip
-    rm -f /data/world.zip
-    if [ ! -d $worldDest ]; then
-      echo World directory not found
-      for i in /data/*/level.dat; do
-        if [ -f "$i" ]; then
-          d=`dirname "$i"`
-          echo Renaming world directory from $d
-          mv -f "$d" $worldDest
-        fi
-      done
-    fi
-    if [ "$TYPE" = "SPIGOT" ]; then
-      # Reorganise if a Spigot server
-      echo "Moving End and Nether maps to Spigot location"
-      [ -d "$worldDest/DIM1" ] && mv -f "$worldDest/DIM1" "/data/${LEVEL}_the_end"
-      [ -d "$worldDest/DIM-1" ] && mv -f "$worldDest/DIM-1" "/data/${LEVEL}_nether"
-    fi
-    ;;
-  *)
-    if [[ -d $WORLD ]]; then
-      if [[ ! -d $worldDest ]]; then
-        echo "Cloning world directory from $WORLD ..."
-        cp -r $WORLD $worldDest
-      else
-        echo "Skipping clone from $WORLD since $worldDest exists"
-      fi
-    else
-      echo "Invalid URL given for world: Must be HTTP or HTTPS and a ZIP file"
-    fi
-    ;;
-esac
-fi
-
-exec /start-finalSetup02Modpack $@

start-finalSetup02Modpack

@@ -1,109 +0,0 @@
-#!/bin/bash
-
-#  CURSE_URL_BASE used in manifest downloads below
-CURSE_URL_BASE=${CURSE_URL_BASE:-https://minecraft.curseforge.com/projects}
-
-# Remove old mods/plugins
-if [ "$REMOVE_OLD_MODS" = "TRUE" ]; then
-  if [ "$TYPE" = "SPIGOT" ]; then
-    rm -rf /data/plugins/*
-  else
-    rm -rf /data/mods/*
-  fi
-fi
-
-# If supplied with a URL for a modpack (simple zip of jars), download it and unpack
-if [[ "$MODPACK" ]]; then
-EFFECTIVE_MODPACK_URL=$(curl -Ls -o /dev/null -w %{url_effective} $MODPACK)
-case "X$EFFECTIVE_MODPACK_URL" in
-  X[Hh][Tt][Tt][Pp]*.zip)
-    echo "Downloading mod/plugin pack via HTTP"
-    echo "  from $EFFECTIVE_MODPACK_URL ..."
-    if ! curl -sSL -o /tmp/modpack.zip "$EFFECTIVE_MODPACK_URL"; then
-      echo "ERROR: failed to download from $EFFECTIVE_MODPACK_URL"
-      exit 2
-    fi
-
-    if [ "$TYPE" = "SPIGOT" ]; then
-      mkdir -p /data/plugins
-      if ! unzip -o -d /data/plugins /tmp/modpack.zip; then
-        echo "ERROR: failed to unzip the modpack from $EFFECTIVE_MODPACK_URL"
-      fi
-    else
-      mkdir -p /data/mods
-      if ! unzip -o -d /data/mods /tmp/modpack.zip; then
-        echo "ERROR: failed to unzip the modpack from $EFFECTIVE_MODPACK_URL"
-      fi
-    fi
-    rm -f /tmp/modpack.zip
-    ;;
-  *)
-    echo "Invalid URL given for modpack: Must be HTTP or HTTPS and a ZIP file"
-    ;;
-esac
-fi
-
-# If supplied with a URL for a plugin download it.
-if [[ "$MODS" ]]; then
-for i in ${MODS//,/ }
-do
-  EFFECTIVE_MOD_URL=$(curl -Ls -o /dev/null -w %{url_effective} $i)
-  case "X$EFFECTIVE_MOD_URL" in
-    X[Hh][Tt][Tt][Pp]*.jar)
-      echo "Downloading mod/plugin via HTTP"
-      echo "  from $EFFECTIVE_MOD_URL ..."
-      if ! curl -sSL -o /tmp/${EFFECTIVE_MOD_URL##*/} $EFFECTIVE_MOD_URL; then
-        echo "ERROR: failed to download from $EFFECTIVE_MOD_URL to /tmp/${EFFECTIVE_MOD_URL##*/}"
-        exit 2
-      fi
-
-      if [ "$TYPE" = "SPIGOT" ]; then
-        mkdir -p /data/plugins
-        mv /tmp/${EFFECTIVE_MOD_URL##*/} /data/plugins/${EFFECTIVE_MOD_URL##*/}
-      else
-        mkdir -p /data/mods
-        mv /tmp/${EFFECTIVE_MOD_URL##*/} /data/mods/${EFFECTIVE_MOD_URL##*/}
-      fi
-      rm -f /tmp/${EFFECTIVE_MOD_URL##*/}
-      ;;
-    *)
-      echo "Invalid URL given for modpack: Must be HTTP or HTTPS and a JAR file"
-      ;;
-  esac
-done
-fi
-
-if [[ "$MANIFEST" ]]; then
-EFFECTIVE_MANIFEST_URL=$(curl -Ls -o /dev/null -w %{url_effective} $MANIFEST)
-case "X$EFFECTIVE_MANIFEST_URL" in
-  X*.json)
-    if [ -f "${EFFECTIVE_MANIFEST_URL}" ]; then
-      MOD_DIR=${FTB_BASE_DIR:-/data}/mods
-      if [ ! -d "$MOD_DIR" ]
-      then
-        echo "Creating mods dir $MOD_DIR"
-        mkdir -p "$MOD_DIR"
-      fi
-      echo "Starting manifest download..."
-      cat "${EFFECTIVE_MANIFEST_URL}" | jq -r '.files[] | (.projectID|tostring) + " " + (.fileID|tostring)'| while read -r p f
-      do
-        if [ ! -f $MOD_DIR/${p}_${f}.jar ]
-        then
-          redirect_url="$(curl -Ls -o /dev/null -w %{url_effective} ${CURSE_URL_BASE}/${p})"
-          url="$redirect_url/download/${f}/file"
-          echo Downloading curseforge mod $url
-          #  Manifest usually doesn't have mod names. Using id should be fine, tho
-          curl -sSL "${url}" -o $MOD_DIR/${p}_${f}.jar
-        fi
-      done
-    else
-      echo "Could not find manifest file, unsufficient privs, or malformed path."
-    fi
-    ;;
-  *)
-    echo "Invalid manifest file for modpack. Please make sure it is a .json file."
-    ;;
-esac
-fi
-
-exec /start-finalSetup03Modconfig $@

start-finalSetup04ServerProperties

@@ -1,146 +0,0 @@
-#!/bin/bash
-
-# FUNCTIONS
-function setServerProp {
-  local prop=$1
-  local var=$2
-  if [ -n "$var" ]; then
-    # normalize booleans
-    case ${var^^} in
-      TRUE|FALSE)
-        var=${var,,} ;;
-    esac
-    echo "Setting ${prop} to '${var}' in ${SERVER_PROPERTIES}"
-    sed -i "/^${prop}\s*=/ c ${prop}=${var}" "$SERVER_PROPERTIES"
-  else
-    echo "Skip setting ${prop}"
-  fi
-}
-
-function customizeServerProps {
-  if [ -n "$WHITELIST" ]; then
-    echo "Creating whitelist"
-    setServerProp "whitelist" "true"
-    setServerProp "white-list" "true"
-  fi
-
-  # If not provided, generate a reasonable default message-of-the-day,
-  # which shows up in the server listing in the client
-  if [ -z "$MOTD" ]; then
-    # snapshot is the odd case where we have to look at version to identify that label
-    if [[ ${ORIGINAL_TYPE} == "VANILLA" && ${VERSION} == "SNAPSHOT" ]]; then
-      label=SNAPSHOT
-    else
-      label=${ORIGINAL_TYPE}
-    fi
-
-    # Convert label to title-case
-    label=${label,,}
-    label=${label^}
-    MOTD="A ${label} Minecraft Server powered by Docker"
-  fi
-
-  setServerProp "server-name" "$SERVER_NAME"
-  setServerProp "server-port" "$SERVER_PORT"
-  setServerProp "motd" "$MOTD"
-  setServerProp "allow-nether" "$ALLOW_NETHER"
-  setServerProp "announce-player-achievements" "$ANNOUNCE_PLAYER_ACHIEVEMENTS"
-  setServerProp "enable-command-block" "$ENABLE_COMMAND_BLOCK"
-  setServerProp "spawn-animals" "$SPAWN_ANIMALS"
-  setServerProp "spawn-monsters" "$SPAWN_MONSTERS"
-  setServerProp "spawn-npcs" "$SPAWN_NPCS"
-  setServerProp "generate-structures" "$GENERATE_STRUCTURES"
-  setServerProp "view-distance" "$VIEW_DISTANCE"
-  setServerProp "hardcore" "$HARDCORE"
-  setServerProp "snooper-enabled" "$SNOOPER_ENABLED"
-  setServerProp "max-build-height" "$MAX_BUILD_HEIGHT"
-  setServerProp "force-gamemode" "$FORCE_GAMEMODE"
-  setServerProp "max-tick-time" "$MAX_TICK_TIME"
-  setServerProp "enable-query" "$ENABLE_QUERY"
-  setServerProp "query.port" "$QUERY_PORT"
-  setServerProp "enable-rcon" "$ENABLE_RCON"
-  setServerProp "rcon.password" "$RCON_PASSWORD"
-  setServerProp "rcon.port" "$RCON_PORT"
-  setServerProp "max-players" "$MAX_PLAYERS"
-  setServerProp "max-world-size" "$MAX_WORLD_SIZE"
-  setServerProp "level-name" "$LEVEL"
-  setServerProp "level-seed" "$SEED"
-  setServerProp "pvp" "$PVP"
-  setServerProp "generator-settings" "$GENERATOR_SETTINGS"
-  setServerProp "online-mode" "$ONLINE_MODE"
-  setServerProp "allow-flight" "$ALLOW_FLIGHT"
-  setServerProp "level-type" "${LEVEL_TYPE^^}"
-
-  if [ -n "$DIFFICULTY" ]; then
-    case $DIFFICULTY in
-      peaceful|0)
-        DIFFICULTY=0
-        ;;
-      easy|1)
-        DIFFICULTY=1
-        ;;
-      normal|2)
-        DIFFICULTY=2
-        ;;
-      hard|3)
-        DIFFICULTY=3
-        ;;
-      *)
-        echo "DIFFICULTY must be peaceful, easy, normal, or hard."
-        exit 1
-        ;;
-    esac
-    setServerProp "difficulty" "$DIFFICULTY"
-  fi
-
-  if [ -n "$MODE" ]; then
-    echo "Setting mode"
-    MODE_LC=$( echo $MODE | tr '[:upper:]' '[:lower:]' )
-    case $MODE_LC in
-      0|1|2|3)
-        ;;
-      su*)
-        MODE=0
-        ;;
-      c*)
-        MODE=1
-        ;;
-      a*)
-        MODE=2
-        ;;
-      sp*)
-        MODE=3
-        ;;
-      *)
-        echo "ERROR: Invalid game mode: $MODE"
-        exit 1
-        ;;
-    esac
-    setServerProp "gamemode" "$MODE"
-  fi
-}
-
-# Deploy server.properties file
-if [[ ${TYPE} == "FEED-THE-BEAST" ]]; then
-  export SERVER_PROPERTIES=${FTB_DIR}/server.properties
-  echo "detected FTB, changing properties path to ${SERVER_PROPERTIES}"
-fi
-
-if [ ! -e "$SERVER_PROPERTIES" ]; then
-  echo "Creating server.properties in ${SERVER_PROPERTIES}"
-  cp /tmp/server.properties "$SERVER_PROPERTIES"
-  customizeServerProps
-elif [ -n "${OVERRIDE_SERVER_PROPERTIES}" ]; then
-    case ${OVERRIDE_SERVER_PROPERTIES^^} in
-      TRUE|1)
-        customizeServerProps
-        ;;
-      *)
-        echo "server.properties already created, skipping"
-        ;;
-    esac
-else
-  echo "server.properties already created, skipping"
-fi
-
-exec /start-finalSetup05EnvVariables $@

start-finalSetup05EnvVariables

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-if [ "$REPLACE_ENV_VARIABLES" = "TRUE" ]; then
-  echo "Replacing env variables in configs that match the prefix $ENV_VARIABLE_PREFIX..."
-  while IFS='=' read -r name value ; do
-    # check if name of env variable matches the prefix
-    # sanity check environment variables to avoid code injections
-    if [[ "$name" = $ENV_VARIABLE_PREFIX* ]] && [[ $value =~ ^[0-9a-zA-Z_:/=?.+\-]*$ ]] && [[ $name =~ ^[0-9a-zA-Z_\-]*$ ]]; then
-        echo "Replacing $name with $value ..."
-        find /data/ -type f \( -name "*.yml" -or -name "*.yaml" -or -name "*.txt" -or -name "*.cfg" -or -name "*.properties" \) -exec sed -i 's#${'"$name"'}#'"$value"'#g' {} \;
-    fi
-  done < <(env)
-fi
-
-exec /start-minecraftFinalSetup $@

start-minecraftFinalSetup

@@ -1,129 +0,0 @@
-#!/bin/bash
-
-. /start-utils
-
-if [ -n "$OPS" -a ! -e ops.txt.converted ]; then
-  echo "Setting ops"
-  echo $OPS | awk -v RS=, '{print}' >> ops.txt
-fi
-
-if [ -n "$WHITELIST" -a ! -e white-list.txt.converted ]; then
-  echo "Setting whitelist"
-  echo $WHITELIST | awk -v RS=, '{print}' >> white-list.txt
-fi
-
-if [ -n "$ICON" -a ! -e server-icon.png ]; then
-  echo "Using server icon from $ICON..."
-  # Not sure what it is yet...call it "img"
-  curl -sSL -o /tmp/icon.img $ICON
-  specs=$(identify /tmp/icon.img | awk '{print $2,$3}')
-  if [ "$specs" = "PNG 64x64" ]; then
-    mv /tmp/icon.img /data/server-icon.png
-  else
-    echo "Converting image to 64x64 PNG..."
-    convert /tmp/icon.img -resize 64x64! /data/server-icon.png
-  fi
-fi
-
-# Make sure files exist and are valid JSON (for pre-1.12 to 1.12 upgrades)
-echo "Checking for JSON files."
-JSON_FILES=$(find . -maxdepth 1 -name '*.json')
-for j in $JSON_FILES; do
-  if [[ $(python -c "print open('$j').read().strip()==''") = True ]]; then
-    echo "Fixing JSON $j"
-    echo '[]' > $j
-  fi
-done
-
-
-# If any modules have been provided, copy them over
-mkdir -p /data/mods
-if [ -d /mods ]; then
-  echo "Copying any mods over..."
-  rsync -a --out-format="update:%f:Last Modified %M" --prune-empty-dirs --update /mods /data
-fi
-
-[ -d /data/config ] || mkdir /data/config
-for c in /config/*
-do
-  if [ -f "$c" ]; then
-    echo Copying configuration `basename "$c"`
-    cp -rf "$c" /data/config
-  fi
-done
-
-mkdir -p /data/plugins
-if [ "$TYPE" = "SPIGOT" ]; then
-  if [ -d /plugins ]; then
-    echo "Copying any Bukkit plugins over..."
-    # Copy plugins over using rsync to allow deeply nested updates of plugins
-    # only updates files if the source file is newer and print updated files
-    rsync -a --out-format="update:%f:Last Modified %M" --prune-empty-dirs --update /plugins /data
-  fi
-fi
-
-EXTRA_ARGS=""
-# Optional disable console
-if [[ ${CONSOLE} = false || ${CONSOLE} = FALSE ]]; then
-  EXTRA_ARGS+="--noconsole"
-fi
-
-# Optional disable GUI for headless servers
-if [[ ${GUI} = false || ${GUI} = FALSE ]]; then
-  EXTRA_ARGS="${EXTRA_ARGS} nogui"
-fi
-
-# put these prior JVM_OPTS at the end to give any memory settings there higher precedence
-echo "Setting initial memory to ${INIT_MEMORY:=${MEMORY}} and max to ${MAX_MEMORY:=${MEMORY}}"
-
-expandedDOpts=
-if [ -n "$JVM_DD_OPTS" ]; then
-      for dopt in $JVM_DD_OPTS
-      do
-          expandedDOpts="${expandedDOpts} -D${dopt/:/=}"
-      done
-fi
-
-mcServerRunnerArgs="--stop-duration 60s"
-
-if [[ ${TYPE} == "FEED-THE-BEAST" ]]; then
-    if [ ! -e "${FTB_DIR}/ops.json" -a -e /data/ops.txt ]; then
-      cp -f /data/ops.txt ${FTB_DIR}/
-    fi
-
-    if [ ! -e "${FTB_DIR}/whitelist.json" -a -e /data/white-list.txt ]; then
-      cp -f /data/white-list.txt ${FTB_DIR}/
-    fi
-
-    cp -f /data/eula.txt "${FTB_DIR}/"
-
-    cat > "${FTB_DIR}/settings-local.sh" <<EOF
-export MIN_RAM="${INIT_MEMORY}"
-export MAX_RAM="${MAX_MEMORY}"
-export JAVA_PARAMETERS="-Xms${INIT_MEMORY} $expandedDOpts"
-EOF
-
-    # patch CurseForge cfg file, if present
-    if [ -f "${FTB_DIR}/settings.cfg" ]; then
-      sed -i "s/MAX_RAM=[^;]*/MAX_RAM=${MAX_MEMORY}/" "${FTB_DIR}/settings.cfg"
-    fi
-
-    cd "${FTB_DIR}"
-    echo "Running FTB ${FTB_SERVER_START} in ${FTB_DIR} ..."
-    if isTrue ${DEBUG_EXEC}; then
-      set -x
-    fi
-    exec mc-server-runner ${mcServerRunnerArgs} "${FTB_SERVER_START}"
-else
-  # If we have a bootstrap.txt file... feed that in to the server stdin
-  if [ -f /data/bootstrap.txt ]; then
-    bootstrapArgs="--bootstrap /data/bootstrap.txt"
-  fi
-
-  echo "Starting the Minecraft server..."
-  JVM_OPTS="-Xms${INIT_MEMORY} -Xmx${MAX_MEMORY} ${JVM_OPTS}"
-  if isTrue ${DEBUG_EXEC}; then
-    set -x
-  fi
-  exec mc-server-runner ${bootstrapArgs} ${mcServerRunnerArgs} java $JVM_XX_OPTS $JVM_OPTS $expandedDOpts -jar $SERVER "$@" $EXTRA_ARGS
-fi

start-setupEnvVariables

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+set -e
+
+: ${REPLACE_ENV_IN_PLACE:=${REPLACE_ENV_VARIABLES:-false}}
+: ${REPLACE_ENV_PATHS:=/data}
+: ${REPLACE_ENV_SUFFIXES:=yml,yaml,txt,cfg,conf,properties,hjson,json,tml,toml}
+: ${REPLACE_ENV_VARIABLE_PREFIX:=${ENV_VARIABLE_PREFIX:-CFG_}}
+: ${REPLACE_ENV_VARIABLES_EXCLUDES:=}
+: ${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS:=}
+: ${PATCH_DEFINITIONS:=}
+: ${DEBUG:=false}
+
+if isTrue "${REPLACE_ENV_IN_PLACE}"; then
+  log "Replacing env variables in ${REPLACE_ENV_PATHS} that match the prefix $REPLACE_ENV_VARIABLE_PREFIX ..."
+
+  mc-image-helper --debug=${DEBUG} interpolate \
+    --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
+    --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
+    --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
+    --replace-env-prefix=${REPLACE_ENV_VARIABLE_PREFIX} \
+    "${REPLACE_ENV_PATHS[@]}"
+fi
+
+if [[ ${PATCH_DEFINITIONS} ]]; then
+  log "Applying patch definitions from ${PATCH_DEFINITIONS}"
+  mc-image-helper --debug=${DEBUG} patch \
+    --patch-env-prefix=${REPLACE_ENV_VARIABLE_PREFIX} \
+    "${PATCH_DEFINITIONS}"
+fi
+
+exec ${SCRIPTS:-/}start-finalExec $@

start-setupModconfig

@@ -1,11 +1,13 @@
 #!/bin/bash
 
+. ${SCRIPTS:-/}start-utils
+
 # If supplied with a URL for a config (simple zip of configurations), download it and unpack
 if [[ "$MODCONFIG" ]]; then
 case "X$MODCONFIG" in
   X[Hh][Tt][Tt][Pp]*[Zz][iI][pP])
-    echo "Downloading mod/plugin configs via HTTP"
-    echo "  from $MODCONFIG ..."
+    log "Downloading mod/plugin configs via HTTP"
+    log "  from $MODCONFIG ..."
     curl -sSL -o /tmp/modconfig.zip "$MODCONFIG"
     if [ "$TYPE" = "SPIGOT" ]; then
       mkdir -p /data/plugins
@@ -17,9 +19,9 @@ case "X$MODCONFIG" in
     rm -f /tmp/modconfig.zip
     ;;
   *)
-    echo "Invalid URL given for modconfig: Must be HTTP or HTTPS and a ZIP file"
+    log "Invalid URL given for modconfig: Must be HTTP or HTTPS and a ZIP file"
     ;;
 esac
 fi
 
-exec /start-finalSetup04ServerProperties $@
+exec ${SCRIPTS:-/}start-setupMounts $@

start-setupModpack

@@ -0,0 +1,178 @@
+#!/bin/bash
+
+set -e -o pipefail
+
+# shellcheck source=start-utils
+. ${SCRIPTS:-/}start-utils
+if isDebugging; then
+  set -x
+fi
+
+#  CURSE_URL_BASE used in manifest downloads below
+CURSE_URL_BASE=${CURSE_URL_BASE:-https://minecraft.curseforge.com/projects}
+
+# Remove old mods/plugins
+if isTrue ${REMOVE_OLD_MODS:-false}; then
+  removeOldMods /data/mods
+  removeOldMods /data/plugins
+fi
+
+# If supplied with a URL for a modpack (simple zip of jars), download it and unpack
+if [[ "$MODPACK" ]]; then
+  if isURL "${MODPACK}"; then
+    if [[ "${MODPACK}" == *.zip ]]; then
+      downloadUrl="${MODPACK}"
+    else
+      downloadUrl=$(curl -Ls -o /dev/null -w %{url_effective} $MODPACK)
+      if ! [[ $downloadUrl == *.zip ]]; then
+        log "ERROR Invalid URL given for MODPACK: $downloadUrl resolved from $MODPACK"
+        log "      Must be HTTP, HTTPS or FTP and a ZIP file"
+        exit 1
+      fi
+    fi
+
+    log "Downloading mod/plugin pack"
+    log "  from $downloadUrl ..."
+    if ! curl -sSL -o /tmp/modpack.zip "$downloadUrl"; then
+      log "ERROR: failed to download from $downloadUrl"
+      exit 2
+    fi
+  elif [[ "$MODPACK" =~ .*\.zip ]]; then
+    if ! cp $MODPACK /tmp/modpack.zip; then
+      log "ERROR: failed to copy from $MODPACK"
+      exit 2
+    fi
+  else
+    log "ERROR Invalid URL or Path given for MODPACK: $MODPACK"
+    exit 1
+  fi
+
+  if [ "$TYPE" = "SPIGOT" ]; then
+    mkdir -p /data/plugins
+    if ! unzip -o -d /data/plugins /tmp/modpack.zip; then
+      log "ERROR: failed to unzip the modpack from $downloadUrl"
+    fi
+  else
+    mkdir -p /data/mods
+    if ! unzip -o -d /data/mods /tmp/modpack.zip; then
+      log "ERROR: failed to unzip the modpack from $downloadUrl"
+    fi
+  fi
+  rm -f /tmp/modpack.zip
+fi
+
+# If supplied with a URL for a plugin download it.
+if [[ "$MODS" ]]; then
+  if [ "$TYPE" = "SPIGOT" ]; then
+    out_dir=/data/plugins
+  else
+    out_dir=/data/mods
+  fi
+  mkdir -p "$out_dir"
+
+  for i in ${MODS//,/ }
+  do
+    if isURL "$i"; then
+      log "Downloading mod/plugin $i ..."
+      if ! get -o "${out_dir}" "$i"; then
+        log "ERROR: failed to download from $i into $out_dir"
+        exit 2
+      fi
+    elif [[ -f "$i" && "$i" =~ .*\.jar ]]; then
+      log "Copying plugin located at $i ..."
+      out_file=$(basename "$i")
+      if ! cp "$i" "${out_dir}/$out_file"; then
+        log "ERROR: failed to copy from $i into $out_dir"
+        exit 2
+      fi
+    elif [[ -d "$i" ]]; then
+      log "Copying plugin jars from $i ..."
+      cp "$i"/*.jar "${out_dir}"
+    else
+      log "ERROR Invalid URL or path given in MODS: $i"
+      exit 2
+    fi
+  done
+fi
+
+if [[ "$MANIFEST" ]]; then
+    if [[ -e "$MANIFEST" ]]; then
+        EFFECTIVE_MANIFEST_FILE=$MANIFEST
+    elif isURL "$MANIFEST"; then
+        EFFECTIVE_MANIFEST_FILE=/tmp/manifest.json
+        EFFECTIVE_MANIFEST_URL=$(curl -Ls -o /dev/null -w %{effective_url} $MANIFEST)
+        curl -Ls -o $EFFECTIVE_MANIFEST_FILE "$EFFECTIVE_MANIFEST_URL"
+    else
+        log "MANIFEST='$MANIFEST' is not a valid manifest url or location"
+        exit 2
+    fi
+
+case "X$EFFECTIVE_MANIFEST_FILE" in
+  X*.json)
+    if [ -f "${EFFECTIVE_MANIFEST_FILE}" ]; then
+      MOD_DIR=${FTB_BASE_DIR:-/data}/mods
+      if [ ! -d "$MOD_DIR" ]
+      then
+        log "Creating mods dir $MOD_DIR"
+        mkdir -p "$MOD_DIR"
+      fi
+      log "Starting manifest download..."
+      cat "${EFFECTIVE_MANIFEST_FILE}" | jq -r '.files[] | (.projectID|tostring) + " " + (.fileID|tostring)'| while read -r p f
+      do
+        if [ ! -f $MOD_DIR/${p}_${f}.jar ]
+        then
+          redirect_url="$(curl -Ls -o /dev/null -w %{effective_url} ${CURSE_URL_BASE}/${p})"
+          url="$redirect_url/download/${f}/file"
+          log Downloading curseforge mod $url
+          #  Manifest usually doesn't have mod names. Using id should be fine, tho
+          curl -sSL "${url}" -o $MOD_DIR/${p}_${f}.jar
+        fi
+      done
+    else
+      log "Could not find manifest file, unsufficient privs, or malformed path."
+    fi
+    ;;
+  *)
+    log "Invalid manifest file for modpack. Please make sure it is a .json file."
+    ;;
+esac
+fi
+
+if [[ "${GENERIC_PACK}" ]]; then
+  if isURL "${GENERIC_PACK}"; then
+    log "Downloading generic pack ..."
+    if ! curl -fsSL -o /tmp/generic_pack.zip "${GENERIC_PACK}"; then
+      log "ERROR: failed to download ${GENERIC_PACK}"
+      exit 2
+    fi
+    GENERIC_PACK=/tmp/generic_pack.zip
+  fi
+
+  sum_file=/data/.generic_pack.sum
+  if ! sha256sum -c ${sum_file} -s 2> /dev/null; then
+    base_dir=/tmp/generic_pack_base
+    mkdir -p ${base_dir}
+    isDebugging && ls -l "${GENERIC_PACK}"
+    unzip -q -d ${base_dir} "${GENERIC_PACK}"
+    if [ -f /data/manifest.txt ]; then
+      log "Manifest exists from older generic pack, cleaning up ..."
+      while read f; do
+        rm -rf "/data/${f}"
+      done < /data/manifest.txt
+      find /data/* -type d -exec rmdir --ignore-fail-on-non-empty {} +
+      rm -f /data/manifest.txt
+    fi
+    log "Writing generic pack manifest ... "
+    find ${base_dir} -type f -print0 | xargs -0 -I {} echo "{}" | sed "s#${base_dir}/##" > /data/manifest.txt
+    log "Applying generic pack ..."
+    IFS='
+'
+    set -f
+    for d in $(find ${base_dir} -type d); do mkdir -p "$(sed "s#${base_dir}#/data#" <<< $d)"; done
+    for f in $(find ${base_dir} -type f); do cp -f "$f" "$(sed "s#${base_dir}#/data#" <<< $f)"; done
+    rm -rf ${base_dir}
+    sha256sum "${GENERIC_PACK}" > ${sum_file}
+  fi
+fi
+
+exec ${SCRIPTS:-/}start-setupModconfig $@

start-setupMounts

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+: ${SYNC_SKIP_NEWER_IN_DESTINATION:=${PLUGINS_SYNC_UPDATE:-true}}
+: ${REPLACE_ENV_DURING_SYNC:=true}
+: ${REPLACE_ENV_SUFFIXES:=yml,yaml,txt,cfg,conf,properties,hjson,json,tml,toml}
+: ${REPLACE_ENV_VARIABLE_PREFIX:=${ENV_VARIABLE_PREFIX:-CFG_}}
+: ${REPLACE_ENV_VARIABLES_EXCLUDES:=}
+: ${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS:=}
+: ${DEBUG:=false}
+
+set -e
+isDebugging && set -x
+
+if isTrue ${SYNC_SKIP_NEWER_IN_DESTINATION}; then
+  updateArg="--skip-newer-in-destination"
+fi
+
+if isTrue ${REPLACE_ENV_DURING_SYNC}; then
+  subcommand=sync-and-interpolate
+else
+  subcommand=sync
+fi
+
+if [ -d /plugins ]; then
+  case ${TYPE} in
+    SPIGOT|BUKKIT|PAPER|MAGMA)
+      mkdir -p /data/plugins
+      log "Copying plugins over..."
+      mc-image-helper \
+        --debug=${DEBUG} ${subcommand} $updateArg \
+        --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
+        --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
+        --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
+        --replace-env-prefix=${REPLACE_ENV_VARIABLE_PREFIX} \
+        /plugins /data/plugins
+      ;;
+  esac
+fi
+
+# If any modules have been provided, copy them over
+: ${COPY_MODS_DEST:="/data/mods"}
+
+if [ -d /mods ]; then
+  log "Copying any mods over..."
+  mc-image-helper \
+    --debug=${DEBUG} ${subcommand} $updateArg \
+    --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
+    --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
+    --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
+    --replace-env-prefix=${REPLACE_ENV_VARIABLE_PREFIX} \
+    /mods "${COPY_MODS_DEST}"
+fi
+
+: ${COPY_CONFIG_DEST:="/data/config"}
+
+if [ -d /config ]; then
+  log "Copying any configs from /config to ${COPY_CONFIG_DEST}"
+  mc-image-helper \
+    --debug=${DEBUG} ${subcommand} $updateArg \
+    --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
+    --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
+    --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
+    --replace-env-prefix=${REPLACE_ENV_VARIABLE_PREFIX} \
+    /config "${COPY_CONFIG_DEST}"
+fi
+
+exec ${SCRIPTS:-/}start-setupServerProperties $@

start-setupServerProperties

@@ -0,0 +1,221 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+: ${SERVER_PROPERTIES:=/data/server.properties}
+
+# FUNCTIONS
+function setServerProp {
+  local prop=$1
+  local var=$2
+  if [ -n "$var" ]; then
+    # normalize booleans
+    case ${var^^} in
+      TRUE|FALSE)
+        var=${var,,} ;;
+    esac
+    if grep "${prop}" "$SERVER_PROPERTIES" > /dev/null; then
+      log "Setting ${prop} to '${var}' in ${SERVER_PROPERTIES}"
+      sed -i "/^${prop}\s*=/ c ${prop}=${var//\\/\\\\}" "$SERVER_PROPERTIES"
+    else
+      log "Adding ${prop} with '${var}' in ${SERVER_PROPERTIES}"
+      echo "${prop}=${var}" >> "$SERVER_PROPERTIES"
+    fi
+  else
+    isDebugging && log "Skip setting ${prop}"
+  fi
+}
+
+function customizeServerProps {
+  if [ -n "$WHITELIST" ] || isTrue ${ENABLE_WHITELIST:-false}; then
+    log "Creating whitelist"
+    setServerProp "whitelist" "true"
+    setServerProp "white-list" "true"
+  else
+    log "Disabling whitelist"
+    setServerProp "whitelist" "false"
+    setServerProp "white-list" "false"
+  fi
+
+  # If not provided, generate a reasonable default message-of-the-day,
+  # which shows up in the server listing in the client
+  if [ -z "$MOTD" ]; then
+    # snapshot is the odd case where we have to look at version to identify that label
+    if [[ ${ORIGINAL_TYPE} == "VANILLA" && ${VERSION} == "SNAPSHOT" ]]; then
+      label=SNAPSHOT
+    else
+      label=${ORIGINAL_TYPE}
+    fi
+
+    # Convert label to title-case
+    label=${label,,}
+    label=${label^}
+    MOTD="A ${label} Minecraft Server powered by Docker"
+  fi
+
+  setServerProp "server-name" "$SERVER_NAME"
+  setServerProp "server-ip" "$SERVER_IP"
+  setServerProp "server-port" "$SERVER_PORT"
+  setServerProp "motd" "$(echo $MOTD | mc-image-helper asciify)"
+  setServerProp "allow-nether" "$ALLOW_NETHER"
+  setServerProp "announce-player-achievements" "$ANNOUNCE_PLAYER_ACHIEVEMENTS"
+  setServerProp "enable-command-block" "$ENABLE_COMMAND_BLOCK"
+  setServerProp "spawn-animals" "$SPAWN_ANIMALS"
+  setServerProp "spawn-monsters" "$SPAWN_MONSTERS"
+  setServerProp "spawn-npcs" "$SPAWN_NPCS"
+  setServerProp "spawn-protection" "$SPAWN_PROTECTION"
+  setServerProp "generate-structures" "$GENERATE_STRUCTURES"
+  setServerProp "view-distance" "$VIEW_DISTANCE"
+  setServerProp "hardcore" "$HARDCORE"
+  setServerProp "snooper-enabled" "$SNOOPER_ENABLED"
+  setServerProp "max-build-height" "$MAX_BUILD_HEIGHT"
+  setServerProp "force-gamemode" "$FORCE_GAMEMODE"
+  setServerProp "max-tick-time" "$MAX_TICK_TIME"
+  setServerProp "enable-query" "$ENABLE_QUERY"
+  setServerProp "query.port" "$QUERY_PORT"
+  setServerProp "enable-rcon" "$ENABLE_RCON"
+  setServerProp "rcon.password" "$RCON_PASSWORD"
+  setServerProp "rcon.port" "$RCON_PORT"
+  setServerProp "max-players" "$MAX_PLAYERS"
+  setServerProp "max-world-size" "$MAX_WORLD_SIZE"
+  setServerProp "level-name" "$LEVEL"
+  setServerProp "level-seed" "$SEED"
+  setServerProp "pvp" "${PVP}"
+  setServerProp "generator-settings" "$GENERATOR_SETTINGS"
+  setServerProp "online-mode" "$ONLINE_MODE"
+  setServerProp "allow-flight" "$ALLOW_FLIGHT"
+  setServerProp "level-type" "${LEVEL_TYPE^^}"
+  setServerProp "resource-pack" "$RESOURCE_PACK"
+  setServerProp "resource-pack-sha1" "$RESOURCE_PACK_SHA1"
+  setServerProp "player-idle-timeout" "$PLAYER_IDLE_TIMEOUT"
+  setServerProp "broadcast-console-to-ops" "$BROADCAST_CONSOLE_TO_OPS"
+  setServerProp "broadcast-rcon-to-ops" "$BROADCAST_RCON_TO_OPS"
+  setServerProp "enable-jmx-monitoring" "$ENABLE_JMX"
+  setServerProp "sync-chunk-writes" "$SYNC_CHUNK_WRITES"
+  setServerProp "enable-status" "$ENABLE_STATUS"
+  setServerProp "entity-broadcast-range-percentage" "$ENTITY_BROADCAST_RANGE_PERCENTAGE"
+  setServerProp "function-permission-level" "$FUNCTION_PERMISSION_LEVEL"
+  setServerProp "network-compression-threshold" "$NETWORK_COMPRESSION_THRESHOLD"
+  setServerProp "op-permission-level" "$OP_PERMISSION_LEVEL"
+  setServerProp "prevent-proxy-connections" "$PREVENT_PROXY_CONNECTIONS"
+  setServerProp "use-native-transport" "$USE_NATIVE_TRANSPORT"
+  setServerProp "enforce-whitelist" "$ENFORCE_WHITELIST"
+  setServerProp "simulation-distance" "$SIMULATION_DISTANCE"
+
+  if [ -n "$DIFFICULTY" ]; then
+    case $DIFFICULTY in
+      peaceful|0)
+        if versionLessThan 1.13; then
+          DIFFICULTY=0
+        else
+          DIFFICULTY=peaceful
+        fi
+        ;;
+      easy|1)
+        if versionLessThan 1.13; then
+          DIFFICULTY=1
+        else
+          DIFFICULTY=easy
+        fi
+        ;;
+      normal|2)
+        if versionLessThan 1.13; then
+          DIFFICULTY=2
+        else
+          DIFFICULTY=normal
+        fi
+        ;;
+      hard|3)
+        if versionLessThan 1.13; then
+          DIFFICULTY=3
+        else
+          DIFFICULTY=hard
+        fi
+        ;;
+      *)
+        log "DIFFICULTY must be peaceful, easy, normal, or hard."
+        exit 1
+        ;;
+    esac
+    setServerProp "difficulty" "$DIFFICULTY"
+  fi
+
+  if [ -n "$MODE" ]; then
+    log "Setting mode"
+    MODE_LC=$( echo $MODE | tr '[:upper:]' '[:lower:]' )
+    case $MODE_LC in
+      su*|0)
+        if versionLessThan 1.13; then
+          MODE=0
+        else
+          MODE=survival
+        fi
+        ;;
+      c*|1)
+        if versionLessThan 1.13; then
+          MODE=1
+        else
+          MODE=creative
+        fi
+        ;;
+      a*|2)
+        if versionLessThan 1.13; then
+          MODE=2
+        else
+          MODE=adventure
+        fi
+        ;;
+      sp*|3)
+        if versionLessThan 1.13; then
+          MODE=3
+        else
+          MODE=spectator
+        fi
+        ;;
+      *)
+        log "ERROR: Invalid game mode: $MODE"
+        exit 1
+        ;;
+    esac
+    setServerProp "gamemode" "$MODE"
+  fi
+}
+
+# Deploy server.properties file
+if [[ ${TYPE} == "CURSEFORGE" ]]; then
+  export SERVER_PROPERTIES="${FTB_DIR}/server.properties"
+  log "detected FTB, changing properties path to ${SERVER_PROPERTIES}"
+fi
+
+if [ ! -e "$SERVER_PROPERTIES" ]; then
+  log "Creating server.properties in ${SERVER_PROPERTIES}"
+  cp /tmp/server.properties "$SERVER_PROPERTIES"
+  customizeServerProps
+elif [ -n "${OVERRIDE_SERVER_PROPERTIES}" ]; then
+    case ${OVERRIDE_SERVER_PROPERTIES^^} in
+      TRUE|1)
+        customizeServerProps
+        ;;
+      *)
+        log "server.properties already created, skipping"
+        ;;
+    esac
+else
+  log "server.properties already created, skipping"
+fi
+
+if isTrue "${ENABLE_AUTOPAUSE}"; then
+  current_max_tick=$( grep 'max-tick-time' "$SERVER_PROPERTIES" | sed -r 's/( )+//g' | awk -F= '{print $2}' )
+  if (( $current_max_tick > 0 && $current_max_tick < 86400000 )); then
+    log "Warning: The server.properties for the server doesn't have the Server Watchdog (effectively) disabled."
+    log "Warning (cont): Autopause functionality resuming the process might trigger the Watchdog and restart the server completely."
+    log "Warning (cont): Set the max-tick-time property to a high value (or disable the Watchdog with value -1 for versions 1.8.1+)."
+  fi
+fi
+
+if isDebugging; then
+  log "DEBUG Dumping server.properties"
+  cat "${SERVER_PROPERTIES}"
+fi
+
+exec ${SCRIPTS:-/}start-setupEnvVariables $@

start-setupWorld

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+set -e
+isDebugging && set -x
+
+: ${LEVEL:=world}
+export LEVEL
+
+if [ $TYPE = "CURSEFORGE" ]; then
+  worldDest=$FTB_DIR/$LEVEL
+else
+  worldDest=/data/$LEVEL
+fi
+
+if [[ "$WORLD" ]] && ( isTrue "${FORCE_WORLD_COPY}" || [ ! -d "$worldDest" ] ); then
+  if isTrue "${FORCE_WORLD_COPY}"; then
+    log "Removing existing world data in $worldDest ${worldDest}_nether ${worldDest}_the_end"
+    rm -rf "$worldDest" \
+      "${worldDest}_nether" \
+      "${worldDest}_the_end"
+  fi
+
+  if isURL $WORLD; then
+    curl -fsSL "$WORLD" -o /tmp/world.zip
+    zipSrc=/tmp/world.zip
+  elif [[ "$WORLD" =~ .*\.zip ]]; then
+    zipSrc="$WORLD"
+  fi
+
+  if [[ "$zipSrc" ]]; then
+    log "Unzipping world"
+
+    # Stage contents so that the correct subdirectory can be picked off
+    mkdir -p /tmp/world-data
+    (cd /tmp/world-data && unzip -o -q "$zipSrc")
+
+    if [ "$TYPE" = "SPIGOT" ]; then
+      baseDirs=$(find /tmp/world-data -name "level.dat" -not -path "*_nether*" -not -path "*_the_end*" -exec dirname "{}" \;)
+    else
+      baseDirs=$(find /tmp/world-data -name "level.dat" -exec dirname "{}" \;)
+    fi
+
+    count=$(echo "$baseDirs" | wc -l)
+    if [[ $count -gt 1 ]]; then
+      baseDir="$(echo "$baseDirs" | sed -n ${WORLD_INDEX:-1}p)"
+      baseName=$(basename "$baseDir")
+      log "WARN multiple levels found, picking: $baseName"
+    elif [[ $count -gt 0 ]]; then
+      baseDir="$baseDirs"
+    else
+      log "ERROR invalid world content"
+      exit 1
+    fi
+    rsync --remove-source-files --recursive --delete "$baseDir/" "$worldDest"
+    if [ "$TYPE" = "SPIGOT" ]; then
+      log "Copying end and nether ..."
+      [ -d "${baseDir}_nether" ] && rsync --remove-source-files --recursive --delete "${baseDir}_nether/" "${worldDest}_nether"
+      [ -d "${baseDir}_the_end" ] && rsync --remove-source-files --recursive --delete "${baseDir}_the_end/" "${worldDest}_the_end"
+    fi
+  else
+    log "Cloning world directory from $WORLD ..."
+    rsync --recursive --delete "${WORLD%/}"/ "$worldDest"
+  fi
+
+  if [ "$TYPE" = "SPIGOT" ]; then
+    # Reorganise if a Spigot server
+    log "Moving End and Nether maps to Spigot location"
+    [ -d "$worldDest/DIM1" ] && mv -f "$worldDest/DIM1" "${worldDest}_the_end"
+    [ -d "$worldDest/DIM-1" ] && mv -f "$worldDest/DIM-1" "${worldDest}_nether"
+  fi
+fi
+
+exec ${SCRIPTS:-/}start-setupModpack $@

start-spiget

@@ -0,0 +1,104 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+. ${SCRIPTS:-/}start-utils
+handleDebugMode
+
+: ${SPIGET_RESOURCES:=}
+: ${SPIGET_DOWNLOAD_TOLERANCE:=5} # in minutes
+
+containsJars() {
+  file=${1?}
+
+  pat='\.jar$'
+
+  while read -r line; do
+    if [[ $line =~ $pat ]]; then
+      return 0
+    fi
+  done <<<$(unzip -l "$file")
+
+  return 1
+}
+
+getResourceFromSpiget() {
+  resource=${1?}
+
+  log "Downloading resource ${resource} ..."
+
+  mkdir -p /data/plugins
+
+  versionfile="/data/plugins/.${resource}-version.json"
+  versionfileNew="/tmp/.${resource}-version.json"
+
+  if [ -f "$versionfile" ]; then
+    if [[ -n $(find "$versionfile" -mmin +${SPIGET_DOWNLOAD_TOLERANCE}) ]]; then
+      urlVersion="https://api.spiget.org/v2/resources/${resource}/versions/latest"
+      if ! curl -o "${versionfileNew}" -fsSL -H "User-Agent: itzg/minecraft-server" "${extraCurlArgs[@]}" "${urlVersion}"; then
+        log "ERROR failed to download resource version meta data '${resource}' from ${urlVersion}"
+        exit 2
+      fi
+
+      installedVersion=$(jq -r '.name' $versionfile)
+      newVersion=$(jq -r '.name' $versionfileNew)
+      
+      if [ "$installedVersion" = "$newVersion" ]; then
+        log "resource '${resource}' not downloaded because installed version '${installedVersion}' already up to date ('${newVersion}')"
+        mv "${versionfileNew}" "${versionfile}"
+      else
+        if downloadResourceFromSpiget "${resource}"; then
+          mv "${versionfileNew}" "${versionfile}"
+        fi
+      fi
+    else
+      log "resource '${resource}' not checked because version meta file newer than '${SPIGET_DOWNLOAD_TOLERANCE}' minutes"
+    fi
+  else
+    if downloadResourceFromSpiget "${resource}"; then
+      urlVersion="https://api.spiget.org/v2/resources/${resource}/versions/latest"
+      if ! curl -o "${versionfileNew}" -fsSL -H "User-Agent: itzg/minecraft-server" "${extraCurlArgs[@]}" "${urlVersion}"; then
+        log "ERROR failed to download resource version meta data '${resource}' from ${urlVersion}"
+        exit 2
+      fi
+      mv "${versionfileNew}" "${versionfile}"
+    fi
+  fi
+
+}
+
+downloadResourceFromSpiget() {
+  resource=${1?}
+
+  tmpfile="/tmp/${resource}.zip"
+  url="https://api.spiget.org/v2/resources/${resource}/download"
+  if ! curl -o "${tmpfile}" -fsSL -H "User-Agent: itzg/minecraft-server" "${extraCurlArgs[@]}" "${url}"; then
+    log "ERROR failed to download resource '${resource}' from ${url}"
+    exit 2
+  fi
+
+  if containsJars "${tmpfile}"; then
+    log "Extracting contents of resource ${resource} into plugins"
+    unzip -o -q -d /data/plugins "${tmpfile}"
+    rm "${tmpfile}"
+  else
+    log "Moving resource ${resource} into plugins"
+    mv "${tmpfile}" "/data/plugins/${resource}.jar"
+  fi
+
+}
+
+if [[ ${SPIGET_RESOURCES} ]]; then
+  if isTrue ${REMOVE_OLD_MODS:-false}; then
+    removeOldMods /data/plugins
+    REMOVE_OLD_MODS=false
+  fi
+
+  log "Getting plugins via Spiget"
+  IFS=',' read -r -a resources <<<"${SPIGET_RESOURCES}"
+  for resource in "${resources[@]}"; do
+    getResourceFromSpiget "${resource}"
+  done
+fi
+
+exec ${SCRIPTS:-/}start-setupWorld $@

start-utils

@@ -1,42 +1,190 @@
 #!/bin/bash
 
-function isURL {
+function join_by() {
+  local d=$1
+  shift
+  echo -n "$1"
+  shift
+  printf "%s" "${@/#/$d}"
+}
+
+function isURL() {
   local value=$1
 
-  if [[ ${value:0:8} == "https://" || ${value:0:7} = "http://" ]]; then
+  if [[ ${value:0:8} == "https://" || ${value:0:7} == "http://" || ${value:0:6} == "ftp://" ]]; then
     return 0
   else
     return 1
   fi
 }
 
-function isTrue {
+function isValidFileURL() {
+  suffix=${1:?Missing required suffix arg}
+  url=${2:?Missing required url arg}
+
+  [[ "$url" == http*://*.${suffix} || "$url" == http*://*.${suffix}\?* ]]
+}
+
+function resolveEffectiveUrl() {
+  url="${1:?Missing required url argument}"
+  if ! curl -Ls -o /dev/null -w %{url_effective} "$url"; then
+    log "ERROR failed to resolve effective URL from $url"
+    exit 2
+  fi
+}
+
+function getFilenameFromUrl() {
+  url="${1:?Missing required url argument}"
+  strippedOfQuery="${url%\?*}"
+  basename "$strippedOfQuery"
+}
+
+function isTrue() {
   local value=${1,,}
 
   result=
 
   case ${value} in
-    true|on)
-      result=0
-      ;;
-    *)
-      result=1
-      ;;
+  true | on)
+    result=0
+    ;;
+  *)
+    result=1
+    ;;
   esac
 
   return ${result}
 }
 
-function isDebugging {
-  if [[ ${DEBUG^^} = TRUE ]]; then
+function isDebugging() {
+  if isTrue "${DEBUG:-false}"; then
     return 0
   else
     return 1
   fi
 }
 
-function debug {
+function handleDebugMode() {
   if isDebugging; then
-    echo "DEBUG: $*"
+    set -x
+    extraCurlArgs=(-v)
   fi
+}
+
+function debug() {
+  if isDebugging; then
+    log "DEBUG: $*"
+  fi
+}
+
+function logn() {
+  echo -n "[init] $*"
+}
+
+function log() {
+  echo "[init] $*"
+}
+
+function logAutopause() {
+  echo "[Autopause loop] $*"
+}
+
+function logAutopauseAction() {
+  echo "[$(date -Iseconds)] [Autopause] $*"
+}
+
+function normalizeMemSize() {
+  local scale=1
+  case ${1,,} in
+  *k)
+    scale=1024
+    ;;
+  *m)
+    scale=1048576
+    ;;
+  *g)
+    scale=1073741824
+    ;;
+  esac
+
+  val=${1:0:-1}
+  echo $((val * scale))
+}
+
+function versionLessThan() {
+  local activeParts
+  IFS=. read -ra activeParts <<<"${VANILLA_VERSION}"
+
+  local givenParts
+  IFS=. read -ra givenParts <<<"$1"
+
+  if ((${#activeParts[@]} < 2)); then
+    return 1
+  fi
+
+  if ((${#activeParts[@]} == 2)); then
+    if ((activeParts[0] < givenParts[0])) ||
+      ((activeParts[0] == givenParts[0] && activeParts[1] < givenParts[1])); then
+      return 0
+    else
+      return 1
+    fi
+  else
+    if ((activeParts[0] < givenParts[0])) ||
+      ((activeParts[0] == givenParts[0] && activeParts[1] < givenParts[1])) ||
+      ((activeParts[0] == givenParts[0] && activeParts[1] == givenParts[1] && activeParts[2] < givenParts[2])); then
+      return 0
+    else
+      return 1
+    fi
+  fi
+}
+
+requireVar() {
+  if [ ! -v $1 ]; then
+    log "ERROR: $1 is required to be set"
+    exit 1
+  fi
+  if [ -z "${!1}" ]; then
+    log "ERROR: $1 is required to be set"
+    exit 1
+  fi
+}
+
+requireEnum() {
+  var=${1?}
+  shift
+
+  for allowed in $*; do
+    if [[ ${!var} = $allowed ]]; then
+      return 0
+    fi
+  done
+
+  log "ERROR: $var must be set to one of $@"
+#  exit 1
+}
+
+function writeEula() {
+  if ! echo "# Generated via Docker
+# $(date)
+eula=${EULA,,}
+" >/data/eula.txt; then
+    log "ERROR: unable to write eula to /data. Please make sure attached directory is writable by uid=${UID}"
+    exit 2
+  fi
+}
+
+function removeOldMods {
+  if [ -d "$1" ]; then
+    find "$1" -mindepth 1 -maxdepth ${REMOVE_OLD_MODS_DEPTH:-16} -wholename "${REMOVE_OLD_MODS_INCLUDE:-*}" -not -wholename "${REMOVE_OLD_MODS_EXCLUDE:-}" -delete
+  fi
+}
+
+function get() {
+  local flags=()
+  if isTrue "${DEBUG_GET:-false}"; then
+    flags+=("--debug")
+  fi
+  mc-image-helper "${flags[@]}" get "$@"
 }

start-validateCurseInstance

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+if ! [[ -v CURSE_INSTANCE_JSON ]]; then
+  log "ERROR: CURSE_INSTANCE_JSON needs to be set"
+  exit 2
+elif ! [ -f "${CURSE_INSTANCE_JSON}" ] && [ -f "${CURSE_INSTANCE_JSON}/minecraftinstance.json" ]; then
+  CURSE_INSTANCE_JSON="${CURSE_INSTANCE_JSON}/minecraftinstance.json"
+elif ! [ -f "${CURSE_INSTANCE_JSON}" ]; then
+  log "ERROR: CURSE_INSTANCE_JSON file does not exist: ${CURSE_INSTANCE_JSON}"
+  exit 2
+fi
+
+log "Resolved CURSE_INSTANCE_JSON as ${CURSE_INSTANCE_JSON}"
+
+exec ${SCRIPTS:-/}start-setupWorld "$@"

tests/docker-compose.test.yml

@@ -0,0 +1,21 @@
+version: "3.8"
+
+services:
+  sut:
+    depends_on:
+      - mc
+    image: itzg/mc-monitor:0.6.0
+    command: status --host mc --retry-interval 1s --retry-limit 120
+  mc:
+    restart: "no"
+    build:
+      context: ..
+      args:
+        TARGETOS: linux
+        TARGETARCH: amd64
+      cache_from:
+      - itzg/minecraft-server:latest
+    environment:
+      EULA: "TRUE"
+      VERSION: "1.16.5"
+

tests/test.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+cd $(dirname $0)
+
+failed=false
+args="-f docker-compose.test.yml"
+docker-compose $args run sut || failed=true
+echo "
+Result: failed=$failed"
+
+$failed && docker-compose $args logs mc
+docker-compose $args down -v
+
+if $failed; then
+  exit 1
+fi
+