Auto-merging via docker-versions-create

See #1192 for an in-depth explanation of the problem.

Reported-by: Erik "Coding-Kiwi"

.github/release.yml

@@ -0,0 +1,4 @@
+changelog:
+  exclude:
+    authors:
+      - dependabot

.github/workflows/build-multiarch.yml

@@ -81,7 +81,7 @@ jobs:
         uses: docker/build-push-action@v2.7.0
         with:
           context: .
-          platforms: linux/amd64,linux/arm/v7,linux/arm64
+          platforms: linux/amd64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           # ensure latest base image is used

.github/workflows/stale-check.yml

@@ -12,7 +12,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Process Stale Issues
-        uses: actions/stale@v4.0.0
+        uses: actions/stale@v4.1.0
         with:
           stale-issue-label: status/stale
           stale-pr-label: status/stale

Dockerfile

@@ -1,39 +1,40 @@
-FROM openjdk:8-jdk-alpine
+FROM adoptopenjdk:11-jdk-openj9
 
 LABEL org.opencontainers.image.authors="Geoff Bourne <itzgeoff@gmail.com>"
 
-RUN apk add --no-cache -U \
-    openssl \
+RUN apt-get update \
+  && DEBIAN_FRONTEND=noninteractive \
+  apt-get install -y \
     imagemagick \
-    lsof \
-    su-exec \
-    shadow \
-    bash \
-    curl iputils wget \
+    gosu \
+    sudo \
+    net-tools \
+    iputils-ping \
+    curl wget \
     git \
     jq \
+    dos2unix \
     mysql-client \
     tzdata \
     rsync \
     nano \
-    sudo \
-    knock \
-    ttf-dejavu
+    unzip \
+    knockd \
+    ttf-dejavu \
+    && apt-get clean
 
-RUN addgroup -g 1000 minecraft \
-  && adduser -Ss /bin/false -u 1000 -G minecraft -h /home/minecraft minecraft \
-  && mkdir -m 777 /data \
-  && chown minecraft:minecraft /data /home/minecraft
+RUN addgroup --gid 1000 minecraft \
+  && adduser --system --shell /bin/false --uid 1000 --ingroup minecraft --home /data minecraft
 
-COPY files/sudoers* /etc/sudoers.d
+COPY --chmod=644 files/sudoers* /etc/sudoers.d
 
 EXPOSE 25565 25575
 
 # 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 TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
 
 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
@@ -59,7 +60,7 @@ 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=1.10.0
+ARG MC_HELPER_VERSION=1.11.0
 ARG MC_HELPER_BASE_URL=https://github.com/itzg/mc-image-helper/releases/download/v${MC_HELPER_VERSION}
 RUN curl -fsSL ${MC_HELPER_BASE_URL}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
     | tar -C /usr/share -zxf - \
@@ -71,21 +72,22 @@ WORKDIR /data
 STOPSIGNAL SIGTERM
 
 ENV UID=1000 GID=1000 \
-  JVM_XX_OPTS="-XX:+UseG1GC" MEMORY="1G" \
+  MEMORY="1G" \
   TYPE=VANILLA VERSION=LATEST \
   ENABLE_RCON=true RCON_PORT=25575 RCON_PASSWORD=minecraft \
   ENABLE_AUTOPAUSE=false AUTOPAUSE_TIMEOUT_EST=3600 AUTOPAUSE_TIMEOUT_KN=120 AUTOPAUSE_TIMEOUT_INIT=600 \
-  AUTOPAUSE_PERIOD=10 AUTOPAUSE_KNOCK_INTERFACE=eth0
+  AUTOPAUSE_PERIOD=10 AUTOPAUSE_KNOCK_INTERFACE=eth0 \
+  ENABLE_AUTOSTOP=false AUTOSTOP_TIMEOUT_EST=3600 AUTOSTOP_TIMEOUT_INIT=1800 AUTOSTOP_PERIOD=10
 
-COPY scripts/start* /
-COPY bin/ /usr/local/bin/
-COPY bin/mc-health /health.sh
-COPY files/server.properties /tmp/server.properties
-COPY files/log4j2.xml /tmp/log4j2.xml
-COPY files/autopause /autopause
+COPY --chmod=755 scripts/start* /
+COPY --chmod=755 bin/ /usr/local/bin/
+COPY --chmod=755 bin/mc-health /health.sh
+COPY --chmod=644 files/server.properties /tmp/server.properties
+COPY --chmod=644 files/log4j2.xml /tmp/log4j2.xml
+COPY --chmod=755 files/autopause /autopause
+COPY --chmod=755 files/autostop /autostop
 
-RUN dos2unix /start* && chmod +x /start* \
-    && dos2unix /autopause/* && chmod +x /autopause/*.sh
+RUN dos2unix /start* /autopause/* /autostop/*
 
 ENTRYPOINT [ "/start" ]
 HEALTHCHECK --start-period=1m CMD mc-health

README.md

@@ -73,6 +73,7 @@ By default, the container will download the latest version of the "vanilla" [Min
       * [Downloadable world](#downloadable-world)
       * [Cloning world from a container path](#cloning-world-from-a-container-path)
       * [Overwrite world on start](#overwrite-world-on-start)
+      * [Datapacks](#datapacks)
    * [Server configuration](#server-configuration)
       * [Message of the Day](#message-of-the-day)
       * [Difficulty](#difficulty)
@@ -131,10 +132,11 @@ By default, the container will download the latest version of the "vanilla" [Min
    * [Autopause](#autopause)
       * [Description](#description)
       * [Enabling Autopause](#enabling-autopause)
+   * [Autostop](#autostop)
    * [Running on RaspberryPi](#running-on-raspberrypi)
    * [Contributing](#contributing)
 
-<!-- Added by: runner, at: Sat Dec 11 22:09:10 UTC 2021 -->
+<!-- Added by: runner, at: Wed Dec 22 13:01:43 UTC 2021 -->
 
 <!--te-->
 
@@ -452,19 +454,13 @@ Plugins can either be managed within the `plugins` subdirectory of the [data dir
 
 Enable Paper server mode by adding a `-e TYPE=PAPER` to your command-line.
 
-By default the container will run the latest build of [Paper server](https://papermc.io/downloads)
-but you can also choose to run a specific build with `-e PAPERBUILD=205`.
+By default, the container will run the latest build of [Paper server](https://papermc.io/downloads) but you can also choose to run a specific build with `-e PAPERBUILD=205`.
 
     docker run -d -v /path/on/host:/data \
         -e TYPE=PAPER \
         -p 25565:25565 -e EULA=TRUE --name mc itzg/minecraft-server
 
-If you are hosting your own copy of Paper you can override the download URL with:
-
-- -e PAPER_DOWNLOAD_URL=<url>
-
-An example compose file is provided at
-[examples/docker-compose-paper.yml](examples/docker-compose-paper.yml).
+If you are hosting your own copy of Paper you can override the download URL with `PAPER_DOWNLOAD_URL=<url>`.
 
 If you have attached a host directory to the `/data` volume, then you can install plugins via the `plugins` subdirectory. You can also [attach a `/plugins` volume](#optional-plugins-mods-and-config-attach-points). If you add plugins while the container is running, you'll need to restart it to pick those up.
 
@@ -476,7 +472,7 @@ An [Airplane](https://airplane.gg) server, which is "a stable, optimized, well s
 
     -e TYPE=AIRPLANE
 
-> NOTE: The `VERSION` variable is used to select an Airplane branch to download from. The available options are "LATEST" "1.17" "1.16" "PURPUR" and "PURPUR-1.16"
+> NOTE: The `VERSION` variable is used to select an Airplane branch to download from. The available options are "LATEST" "1.17" and "PURPUR"
 
 Extra variables:
 - `AIRPLANE_BUILD=lastSuccessfulBuild` : set a specific Airplane build to use
@@ -798,6 +794,16 @@ The following diagram shows how this option can be used in a compose deployment
 ### Overwrite world on start
 The world will only be downloaded or copied if it doesn't exist already. Set `FORCE_WORLD_COPY=TRUE` to force overwrite the world on every server start.
 
+### Datapacks
+Datapacks can be installed in a similar manner to mods/plugins. There are many environment variables which function in the same way they do for [mods](#working-with-mods-and-plugins): 
+* `DATAPACKS`
+* `DATAPACKS_FILE` 
+* `REMOVE_OLD_DATAPACKS` 
+* `REMOVE_OLD_DATAPACKS_DEPTH` 
+* `REMOVE_OLD_DATAPACKS_INCLUDE`
+* `REMOVE_OLD_DATAPACKS_EXCLUDE`
+Datapacks will be placed in `/data/$LEVEL/datapacks`
+
 ## Server configuration
 
 By default, the server configuration will be created and set based on the following environment variables, but only the first time the server is started. If the `server.properties` file already exists, the values in them will not be changed.
@@ -1465,6 +1471,28 @@ The following environment variables define the behaviour of auto-pausing:
 * `AUTOPAUSE_KNOCK_INTERFACE`, default `eth0`
   <br>Describes the interface passed to the `knockd` daemon. If the default interface does not work, run the `ifconfig` command inside the container and derive the interface receiving the incoming connection from its output. The passed interface must exist inside the container. Using the loopback interface (`lo`) does likely not yield the desired results.
 
+## Autostop
+
+An option to stop the server after a specified time has been added for niche applications (e.g. billing saving on AWS Fargate). The function is incompatible with the Autopause functionality, as they basically cancel out each other.
+
+Note that the docker container variables have to be set accordingly (restart policy set to "no") and that the container has to be manually restarted.
+
+A starting, example compose file has been provided in [examples/docker-compose-autostop.yml](examples/docker-compose-autostop.yml).
+
+Enable the Autostop functionality by setting:
+
+```
+-e ENABLE_AUTOSTOP=TRUE
+```
+
+The following environment variables define the behaviour of auto-stopping:
+* `AUTOSTOP_TIMEOUT_EST`, default `3600` (seconds)
+  describes the time between the last client disconnect and the stopping of the server (read as timeout established)
+* `AUTOSTOP_TIMEOUT_INIT`, default `1800` (seconds)
+  describes the time between server start and the stopping of the server, when no client connects inbetween (read as timeout initialized)
+* `AUTOSTOP_PERIOD`, default `10` (seconds)
+  describes period of the daemonized state machine, that handles the stopping of the server
+
 ## Running on RaspberryPi
 
 To run this image on a RaspberryPi 3 B+, 4, or newer, use any of the image tags [list in the Java version section](#running-minecraft-server-on-different-java-version) that specify `armv7` for the architecture, which includes `itzg/minecraft-server:latest`.

bin/mc-send-to-console

@@ -12,4 +12,4 @@ if [ ! -p "${CONSOLE_IN_NAMED_PIPE}" ]; then
   exit 1
 fi
 
-echo "$@" > "${CONSOLE_IN_NAMED_PIPE:-/tmp/minecraft-console-in}"
+gosu minecraft bash -c "echo $* > '${CONSOLE_IN_NAMED_PIPE:-/tmp/minecraft-console-in}'"

docker-versions-create.sh

@@ -147,7 +147,7 @@ if [[ $tag ]]; then
           "generate_release_notes": true
         }
 EOF
-      if ! echo curl "${auth[@]}" -H "Accept: application/vnd.github.v3+json" \
+      if ! curl "${auth[@]}" -H "Accept: application/vnd.github.v3+json" \
         "${base}/repos/${owner}/${repo}/releases" -d "$releaseBody"; then
           echo "ERROR failed to create github release $tag"
           exit 1

examples/docker-compose-autostop.yml

@@ -0,0 +1,20 @@
+version: '3.8'
+
+services:
+  minecraft:
+    image: itzg/minecraft-server
+    ports:
+      - "25565:25565"
+    volumes:
+      - "mc:/data"
+    environment:
+      EULA: "TRUE"
+      ENABLE_AUTOSTOP: "TRUE"
+      # More aggressive settings for demo purposes
+      AUTOSTOP_TIMEOUT_INIT: "30"
+      AUTOSTOP_TIMEOUT_EST: "20"
+    # Important not to auto-restart the server!!!
+    restart: "no"
+
+volumes:
+  mc: {}

examples/docker-compose-paper.yml

@@ -1,18 +1,19 @@
 version: '3.8'
-
 services:
   mc:
     image: itzg/minecraft-server
+    container_name: paper
     environment:
       EULA: "true"
+      ENABLE_RCON: "true"
       TYPE: PAPER
-      VERSION: 1.9.4
-      # needed for Paper versions before 1.14
+      VIEW_DISTANCE: 10
+      MEMORY: 2G
       CONSOLE: "false"
     ports:
       - 25565:25565
     volumes:
       - mc-paper:/data
-
+    restart: unless-stopped
 volumes:
   mc-paper:

files/autopause/autopause-fcns.sh

@@ -5,15 +5,15 @@ current_uptime() {
 }
 
 java_running() {
-  [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]]
+  [[ $( ps -ax -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]]
 }
 
 java_process_exists() {
-  [[ -n "$(ps -a -o comm | grep 'java')" ]]
+  [[ -n "$(ps -ax -o comm | grep 'java')" ]]
 }
 
 rcon_client_exists() {
-  [[ -n "$(ps -a -o comm | grep 'rcon-cli')" ]]
+  [[ -n "$(ps -ax -o comm | grep 'rcon-cli')" ]]
 }
 
 mc_server_listening() {

files/autopause/knockd-config.cfg

@@ -3,12 +3,12 @@
 [unpauseMCServer-server]
  sequence = 25565
  seq_timeout = 1
- command = /sbin/su-exec minecraft:minecraft /autopause/resume.sh
+ command = /usr/sbin/gosu minecraft:minecraft /autopause/resume.sh
  tcpflags = syn
 [unpauseMCServer-rcon]
  sequence = 25575
  seq_timeout = 1
- command = /sbin/su-exec minecraft:minecraft /autopause/resume.sh
+ command = /usr/sbin/gosu minecraft:minecraft /autopause/resume.sh
  tcpflags = syn
 [unpauseMCServer-bedrock]
  sequence = 19132:udp

files/autopause/pause.sh

@@ -2,7 +2,7 @@
 
 . /start-utils
 
-if [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]] ; then
+if [[ $( ps -ax -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^S.*$ ]] ; then
   # save world
   rcon-cli save-all >/dev/null
 

files/autopause/resume.sh

@@ -2,7 +2,7 @@
 
 . /start-utils
 
-if [[ $( ps -a -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^T.*$ ]] ; then
+if [[ $( ps -ax -o stat,comm | grep 'java' | awk '{ print $1 }') =~ ^T.*$ ]] ; then
   logAutopauseAction "Knocked, resuming Java process"
   pkill -CONT java
 fi

files/autostop/autostop-daemon.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# needed for the clients connected function residing in autopause
+. /autopause/autopause-fcns.sh
+
+. ${SCRIPTS:-/}start-utils
+
+# wait for java process to be started
+while :
+do
+  if java_process_exists ; then
+    break
+  fi
+  sleep 0.1
+done
+
+STATE=INIT
+
+while :
+do
+  case X$STATE in
+  XINIT)
+    # Server startup
+    if mc_server_listening ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOSTOP_TIMEOUT_INIT))
+      logAutostop "MC Server listening for connections - stopping in $AUTOSTOP_TIMEOUT_INIT seconds"
+      STATE=II
+    fi
+    ;;
+  XII)
+    # Initial idle
+    if java_clients_connected ; then
+      logAutostop "Client connected - waiting for disconnect"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutostop "No client connected since startup - stopping server"
+        /autostop/stop.sh
+        exit 0
+      fi
+    fi
+    ;;
+  XE)
+    # Established
+    if ! java_clients_connected ; then
+      TIME_THRESH=$(($(current_uptime)+$AUTOSTOP_TIMEOUT_EST))
+      logAutostop "All clients disconnected - stopping in $AUTOSTOP_TIMEOUT_EST seconds"
+      STATE=I
+    fi
+    ;;
+  XI)
+    # Idle
+    if java_clients_connected ; then
+      logAutostop "Client reconnected - waiting for disconnect"
+      STATE=E
+    else
+      if [[ $(current_uptime) -ge $TIME_THRESH ]] ; then
+        logAutostop "No client reconnected - stopping"
+        /autostop/stop.sh
+        exit 0
+      fi
+    fi
+    ;;
+  *)
+    logAutostop "Error: invalid state: $STATE"
+    ;;
+  esac
+  sleep $AUTOSTOP_PERIOD
+done

files/autostop/stop.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+. /start-utils
+
+logAutostopAction "Stopping Java process"
+kill -SIGTERM 1

scripts/start

@@ -40,7 +40,7 @@ if ! isTrue "${SKIP_SUDO:-false}" && [ $(id -u) = 0 ]; then
     echo 'hosts: files dns' > /etc/nsswitch.conf
   fi
 
-  exec su-exec ${runAsUser}:${runAsGroup} ${SCRIPTS:-/}start-configuration $@
+  exec gosu ${runAsUser}:${runAsGroup} ${SCRIPTS:-/}start-configuration "$@"
 else
-  exec ${SCRIPTS:-/}start-configuration $@
+  exec ${SCRIPTS:-/}start-configuration "$@"
 fi

scripts/start-autostop

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# shellcheck source=start-utils
+. "${SCRIPTS:-/}start-utils"
+
+: "${SERVER_PORT:=25565}"
+export SERVER_PORT
+
+log "Autostop functionality enabled"
+
+isDebugging && set -x
+
+if ! [[ $AUTOSTOP_PERIOD =~ ^[0-9]+$ ]]; then
+  AUTOSTOP_PERIOD=10
+  export AUTOSTOP_PERIOD
+  log "Warning: AUTOSTOP_PERIOD is not numeric, set to 10 (seconds)"
+fi
+if [ "$AUTOSTOP_PERIOD" -eq "0" ] ; then
+  AUTOSTOP_PERIOD=10
+  export AUTOSTOP_PERIOD
+  log "Warning: AUTOSTOP_PERIOD must not be 0, set to 10 (seconds)"
+fi
+if ! [[ $AUTOSTOP_TIMEOUT_EST =~ ^[0-9]+$ ]] ; then
+  AUTOSTOP_TIMEOUT_EST=3600
+  export AUTOSTOP_TIMEOUT_EST
+  log "Warning: AUTOSTOP_TIMEOUT_EST is not numeric, set to 3600 (seconds)"
+fi
+if ! [[ $AUTOSTOP_TIMEOUT_INIT =~ ^[0-9]+$ ]] ; then
+  AUTOSTOP_TIMEOUT_INIT=1800
+  export AUTOSTOP_TIMEOUT_INIT
+  log "Warning: AUTOSTOP_TIMEOUT_INIT is not numeric, set to 1800 (seconds)"
+fi
+
+/autostop/autostop-daemon.sh &

scripts/start-configuration

@@ -37,6 +37,11 @@ if isTrue "${ENABLE_AUTOPAUSE}" && isTrue "${EXEC_DIRECTLY:-false}"; then
     exit 1
 fi
 
+if isTrue "${ENABLE_AUTOPAUSE}" && isTrue "${ENABLE_AUTOSTOP}"; then
+    log "ENABLE_AUTOPAUSE=true is incompatible with ENABLE_AUTOSTOP=true"
+    exit 1
+fi
+
 if [[ $PROXY ]]; then
     export http_proxy="$PROXY"
     export https_proxy="$PROXY"
@@ -63,7 +68,7 @@ fi
 
 if ! which java > /dev/null; then
   log "Fixing PATH to include java"
-  PATH="${PATH}:/usr/bin"
+  PATH="${PATH}:/opt/java/openjdk/bin"
 fi
 
 export VERSIONS_JSON=https://launchermeta.mojang.com/mc/game/version_manifest.json
@@ -96,6 +101,10 @@ if isTrue "${ENABLE_AUTOPAUSE}"; then
   ${SCRIPTS:-/}start-autopause
 fi
 
+if isTrue "${ENABLE_AUTOSTOP}"; then
+  ${SCRIPTS:-/}start-autostop
+fi
+
 if versionLessThan 1.7; then
   echo "
 MC_HEALTH_EXTRA_ARGS=(
@@ -115,6 +124,12 @@ case "${TYPE^^}" in
   ;;
 
   FORGE)
+    log "**********************************************************************"
+    log "WARNING: The image tag itzg/minecraft-server:java8 is recommended"
+    log "         since some mods require Java 8"
+    log "         Exception traces reporting ClassCastException: class jdk.internal.loader.ClassLoaders\$AppClassLoader"
+    log "         can be fixed with java8"
+    log "**********************************************************************"
     exec ${SCRIPTS:-/}start-deployForge "$@"
   ;;
 
@@ -122,7 +137,15 @@ case "${TYPE^^}" in
     exec ${SCRIPTS:-/}start-deployFabric "$@"
   ;;
 
+  FTBA)
+    exec ${SCRIPTS:-/}start-deployFTBA "$@"
+  ;;
+
   FTB|CURSEFORGE)
+    log "**********************************************************************"
+    log "NOTE: Some mods and modpacks may require Java 8."
+    log "      If so, use itzg/minecraft-server:java8"
+    log "**********************************************************************"
     exec ${SCRIPTS:-/}start-deployCF "$@"
   ;;
 
@@ -167,6 +190,12 @@ case "${TYPE^^}" in
   ;;
 
   CRUCIBLE)
+    log "**********************************************************************"
+    log "WARNING: The image tag itzg/minecraft-server:java8 is recommended"
+    log "         since some mods require Java 8"
+    log "         Exception traces reporting ClassCastException: class jdk.internal.loader.ClassLoaders\$AppClassLoader"
+    log "         can be fixed with java8"
+    log "**********************************************************************"
     exec "${SCRIPTS:-/}start-deployCrucible" "$@"
   ;;
 

scripts/start-deployAirplane

@@ -6,8 +6,8 @@ isDebugging && set -x
 
 IFS=$'\n\t'
 
-if [ "${VERSION}" != "LATEST" ] && [ "${VERSION}" != "1.16" ] && [ "${VERSION}" != "1.17" ] && [ "${VERSION}" != "PURPUR" ] && [ "${VERSION}" != "PURPUR-1.16" ] ; then
-  log "ERROR: Airplane server type only supports VERSION=LATEST, VERSION=1.17, VERSION=1.16, VERSION=PURPUR or VERSION=PURPUR-1.16. Note that these are branches, not #.#.# versions."
+if [ "${VERSION}" != "LATEST" ] && [ "${VERSION}" != "1.17" ] && [ "${VERSION}" != "PURPUR" ] ; then
+  log "ERROR: Airplane server type only supports VERSION=LATEST, VERSION=1.17, VERSION=PURPUR. Note that these are branches, not #.#.# versions."
   exit 1
 fi
 
@@ -18,20 +18,11 @@ 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

scripts/start-deployCF

@@ -85,8 +85,6 @@ if ! isTrue "${USE_MODPACK_START_SCRIPT:-true}"; then
         exit 2
       fi
 
-      forgeInstallerJar=$(ls -t "${forgeInstallerJar}" | head -1)
-
       log "Installing forge server"
       dirOfInstaller=$(dirname "${forgeInstallerJar}")
       (cd "${dirOfInstaller}"; java -jar "$(basename "${forgeInstallerJar}")" --installServer)

scripts/start-deployCrucible

@@ -47,7 +47,6 @@ if [ ! -d "$librariesDir" ]; then
     exit 1
   fi
 
-  mkdir "$librariesDir"
   if ! unzip /tmp/libraries.zip -d "$librariesDir"; then
     log "ERROR: failed to unzip Crucible libraries"
     exit 1

scripts/start-deployFabric

@@ -2,27 +2,31 @@
 set -eu
 
 # shellcheck source=start-utils
-. ${SCRIPTS:-/}start-utils
+. "${SCRIPTS:-/}start-utils"
 
 requireVar VANILLA_VERSION
 export TYPE=FABRIC
-export SERVER=fabric-server-${VANILLA_VERSION}.jar
+: "${FABRIC_INSTALLER_VERSION:=${FABRICVERSION:-LATEST}}"
+: "${FABRIC_INSTALLER:=}"
+: "${FABRIC_INSTALLER_URL:=}"
+: "${FABRIC_LOADER_VERSION:=LATEST}"
 
 isDebugging && set -x
 
-if [[ ! -e ${SERVER} ]]; then
+log "Checking Fabric version information."
+if [[ $FABRIC_INSTALLER ]]; then
+  FABRIC_INSTALLER_VERSION=$(echo -n "$FABRIC_INSTALLER" | mc-image-helper hash)
+elif [[ $FABRIC_INSTALLER_URL ]]; then
+  FABRIC_INSTALLER_VERSION=$(echo -n "$FABRIC_INSTALLER_URL" | mc-image-helper hash)
+elif [[ ${FABRIC_INSTALLER_VERSION^^} = LATEST ]]; then
+  FABRIC_INSTALLER_VERSION=$(maven-metadata-release https://maven.fabricmc.net/net/fabricmc/fabric-installer/maven-metadata.xml)
+fi
 
-  : ${FABRIC_INSTALLER:=}
-  : ${FABRIC_INSTALLER_URL:=}
-  : ${FABRIC_LOADER_VERSION:=LATEST}
-  : ${FABRIC_INSTALLER_VERSION:=${FABRICVERSION:-LATEST}}
+export SERVER=fabric-server-${VANILLA_VERSION}-${FABRIC_INSTALLER_VERSION}.jar
+
+if [ ! \( -e ${SERVER} -a -e "server-${VANILLA_VERSION}.jar" \) ]; then
 
   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
-
     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
@@ -66,8 +70,12 @@ if [[ ! -e ${SERVER} ]]; then
     exit 10
   fi
 
+  mv server.jar "server-${VANILLA_VERSION}.jar"
   mv fabric-server-launch.jar "${SERVER}"
 fi
 
+# Specify which server jar to run
+echo "serverJar=server-${VANILLA_VERSION}.jar" >  fabric-server-launcher.properties
+
 export FAMILY=FABRIC
-exec ${SCRIPTS:-/}start-setupWorld "$@"
+exec "${SCRIPTS:-/}start-setupWorld" "$@"

scripts/start-finalExec

@@ -107,7 +107,36 @@ if [ -n "$ICON" ]; then
     fi
 fi
 
+canUseRollingLogs=true
+
+patchLog4jConfig() {
+  file=${1?}
+  url=${2?}
+  if ! get -o "$file" "$url"; then
+    log "ERROR: failed to download corrected log4j config"
+    exit 1
+  fi
+  JVM_OPTS="-Dlog4j.configurationFile=${file} ${JVM_OPTS}"
+  canUseRollingLogs=false
+}
+
+# Patch Log4j remote code execution vulnerability
+# See https://www.minecraft.net/en-us/article/important-message--security-vulnerability-java-edition
+if versionLessThan 1.7; then
+  : # No patch required here.
+elif isFamily VANILLA && versionLessThan 1.12; then
+  patchLog4jConfig log4j2_17-111.xml https://launcher.mojang.com/v1/objects/dd2b723346a8dcd48e7f4d245f6bf09e98db9696/log4j2_17-111.xml
+elif isFamily VANILLA && versionLessThan 1.17; then
+  patchLog4jConfig log4j2_112-116.xml https://launcher.mojang.com/v1/objects/02937d122c86ce73319ef9975b58896fc1b491d1/log4j2_112-116.xml
+elif versionLessThan 1.18.1; then
+  JVM_OPTS="-Dlog4j2.formatMsgNoLookups=true ${JVM_OPTS}"
+fi
+
 if isTrue ${ENABLE_ROLLING_LOGS:-false}; then
+  if ! ${canUseRollingLogs}; then
+    log "ERROR: Using rolling logs is currently not possible in the selected version due to CVE-2021-44228"
+    exit 1
+  fi
   # Set up log configuration
   LOGFILE="/data/log4j2.xml"
   if [ ! -e "$LOGFILE" ]; then
@@ -150,28 +179,6 @@ if [ -n "$JVM_DD_OPTS" ]; then
       done
 fi
 
-patchLog4jConfig() {
-  file=${1?}
-  url=${2?}
-  if ! get -o "$file" "$url"; then
-    log "ERROR: failed to download corrected log4j config"
-    exit 1
-  fi
-  JVM_OPTS="-Dlog4j.configurationFile=${file} ${JVM_OPTS}"
-}
-
-# Patch Log4j remote code execution vulnerability
-# See https://www.minecraft.net/en-us/article/important-message--security-vulnerability-java-edition
-if versionLessThan 1.7; then
-  : # No patch required here.
-elif isFamily VANILLA && versionLessThan 1.12; then
-  patchLog4jConfig log4j2_17-111.xml https://launcher.mojang.com/v1/objects/dd2b723346a8dcd48e7f4d245f6bf09e98db9696/log4j2_17-111.xml
-elif isFamily VANILLA && versionLessThan 1.17; then
-  patchLog4jConfig log4j2_112-116.xml https://launcher.mojang.com/v1/objects/02937d122c86ce73319ef9975b58896fc1b491d1/log4j2_112-116.xml
-elif versionLessThan 1.18.1; then
-  JVM_OPTS="-Dlog4j2.formatMsgNoLookups=true ${JVM_OPTS}"
-fi
-
 if isTrue ${ENABLE_JMX}; then
   : ${JMX_PORT:=7091}
   JVM_OPTS="${JVM_OPTS}

scripts/start-setupDatapack

@@ -0,0 +1,77 @@
+#!/bin/bash
+
+set -e -o pipefail
+
+: "${REMOVE_OLD_DATAPACKS:=false}"
+: "${DATAPACKS_FILE:=}"
+: "${REMOVE_OLD_DATAPACKS_DEPTH:=1} "
+: "${REMOVE_OLD_DATAPACKS_INCLUDE:=*.zip}"
+
+# shellcheck source=start-utils
+. "${SCRIPTS:-/}start-utils"
+isDebugging && set -x
+
+out_dir=/data/${LEVEL:-world}/datapacks
+
+# Remove old datapacks
+if isTrue "${REMOVE_OLD_DATAPACKS}" && [ -z "${DATAPACKS_FILE}" ]; then
+    if [ -d "$out_dir" ]; then
+    find "$out_dir" -mindepth 1 -maxdepth ${REMOVE_OLD_DATAPACKS_DEPTH:-16} -wholename "${REMOVE_OLD_DATAPACKS_INCLUDE:-*}" -not -wholename "${REMOVE_OLD_DATAPACKS_EXCLUDE:-}" -delete
+  fi
+fi
+
+if [[ "$DATAPACKS" ]]; then
+  mkdir -p "$out_dir"
+
+  for i in ${DATAPACKS//,/ }
+  do
+    if isURL "$i"; then
+      log "Downloading datapack $i ..."
+      if ! get -o "${out_dir}" "$i"; then
+        log "ERROR: failed to download from $i into $out_dir"
+        exit 2
+      fi
+    elif [[ -f "$i" && "$i" =~ .*\.zip ]]; then
+      log "Copying datapack 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 datapacks from $i ..."
+      cp "$i"/*.zip "${out_dir}"
+    else
+      log "ERROR Invalid URL or path given in DATAPACKS: $i"
+      exit 2
+    fi
+  done
+
+elif [[ "$DATAPACKS_FILE" ]]; then
+  if [ ! -f "$DATAPACKS_FILE" ]; then
+    log "ERROR: given DATAPACKS_FILE file does not exist"
+    exit 2
+  fi
+
+  mkdir -p "$out_dir"
+
+  args=(
+    -o "${out_dir}"
+    --log-progress-each
+    --skip-existing
+    --uris-file "${DATAPACKS_FILE}"
+  )
+  if isTrue "${REMOVE_OLD_DATAPACKS}"; then
+    args+=(
+    --prune-others "${REMOVE_OLD_DATAPACKS_INCLUDE}"
+    --prune-depth "${REMOVE_OLD_DATAPACKS_DEPTH}"
+    )
+  fi
+
+  if ! get "${args[@]}" ; then
+    log "ERROR: failed to retrieve one or more datapacks"
+    exit 1
+  fi
+fi
+
+exec "${SCRIPTS:-/}start-setupModpack" "$@"

scripts/start-setupWorld

@@ -69,4 +69,4 @@ if [[ "$WORLD" ]] && ( isTrue "${FORCE_WORLD_COPY}" || [ ! -d "$worldDest" ] );
   fi
 fi
 
-exec "${SCRIPTS:-/}start-setupModpack" "$@"
+exec "${SCRIPTS:-/}start-setupDatapack" "$@"

scripts/start-spiget

@@ -22,6 +22,20 @@ containsJars() {
   return 1
 }
 
+containsPlugin() {
+  file=${1?}
+
+  pat='plugin.yml$'
+
+  while read -r line; do
+    if [[ $line =~ $pat ]]; then
+      return 0
+    fi
+  done <<<$(unzip -l "$file")
+
+  return 1
+}
+
 getResourceFromSpiget() {
   resource=${1?}
 
@@ -81,9 +95,12 @@ downloadResourceFromSpiget() {
     log "Extracting contents of resource ${resource} into plugins"
     unzip -o -q -d /data/plugins "${tmpfile}"
     rm "${tmpfile}"
-  else
+  elif containsPlugin "${tmpfile}"; then
     log "Moving resource ${resource} into plugins"
     mv "${tmpfile}" "/data/plugins/${resource}.jar"
+  else
+    log "ERROR downloaded resource '${resource}' seems to be not a valid plugin"
+    exit 2
   fi
 
 }

scripts/start-utils

@@ -93,6 +93,14 @@ function logAutopauseAction() {
   echo "[$(date -Iseconds)] [Autopause] $*"
 }
 
+function logAutostop() {
+  echo "[Autostop loop] $*"
+}
+
+function logAutostopAction() {
+  echo "[$(date -Iseconds)] [Autostop] $*"
+}
+
 function normalizeMemSize() {
   local scale=1
   case ${1,,} in