Specify .mrpack extension for local mrpack files (#4079)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -13,9 +13,15 @@ updates:
           - minor
   - package-ecosystem: pip
     directory: "/docs"
+    labels:
+      - dependencies
+      - documentation
     schedule:
       interval: weekly
     groups:
+      docker:
+        patterns:
+          - "docker/*"
       patches:
         patterns:
           - "*"

.github/workflows/build.yml

@@ -75,24 +75,28 @@ jobs:
             baseImage: adoptopenjdk:16-jre-hotspot
             platforms: linux/amd64,linux/arm/v7,linux/arm64
             mcVersion: 1.16.5
+            # Pin version for pre-Java 17
+            mcHelperVersion: 1.51.3-java8
         # JAVA 11
           - variant: java11
             baseImage: adoptopenjdk:11-jre-hotspot
             platforms: linux/amd64,linux/arm/v7,linux/arm64
             mcVersion: 1.16.4
+            # Pin version for pre-Java 17
+            mcHelperVersion: 1.51.3-java8
         # JAVA 8: NOTE: Unable to go past 8u312 because of Forge dependencies
           - variant: java8
             baseImage: eclipse-temurin:8u312-b07-jre-focal
             platforms: linux/amd64,linux/arm/v7,linux/arm64
             mcVersion: 1.12.2
-            # Pin version for Java 8
+            # Pin version for Java 8, also be sure to set in verify-pr.yml
-            mcHelperVersion: 1.51.1
+            mcHelperVersion: 1.51.3-java8
           - variant: java8-jdk
             baseImage: eclipse-temurin:8u312-b07-jdk-focal
             platforms: linux/amd64,linux/arm64
             mcVersion: 1.12.2
-            # Pin version for Java 8
+            # Pin version for Java 8, also be sure to set in verify-pr.yml
-            mcHelperVersion: 1.51.1
+            mcHelperVersion: 1.51.3-java8
     env:
       IMAGE_TO_TEST: "${{ github.repository_owner }}/minecraft-server:test-${{ matrix.variant }}-${{ github.run_id }}"
       HAS_IMAGE_REPO_ACCESS: ${{ secrets.DOCKER_USER != '' && secrets.DOCKER_PASSWORD != '' }}
@@ -107,7 +111,7 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5.10.0
+        uses: docker/metadata-action@v6.0.0
         with:
           # NOTE for forks: if your Docker Hub organization doesn't match your Github repo's,
           # then the use of ${{ github.repository_owner }} will need to be replaced.
@@ -137,13 +141,13 @@ jobs:
             org.opencontainers.image.authors=Geoff Bourne <itzgeoff@gmail.com>
 
       - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3.7.0
+        uses: docker/setup-qemu-action@v4.0.0
 
       - name: Build for test
-        uses: docker/build-push-action@v6.19.2
+        uses: docker/build-push-action@v7.1.0
         with:
           platforms: linux/amd64
           tags: ${{ env.IMAGE_TO_TEST }}
@@ -168,14 +172,14 @@ jobs:
           tests/test.sh
 
       - name: Login to DockerHub
-        uses: docker/login-action@v3.7.0
+        uses: docker/login-action@v4.1.0
         if: env.HAS_IMAGE_REPO_ACCESS
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Login to GHCR
-        uses: docker/login-action@v3.7.0
+        uses: docker/login-action@v4.1.0
         if: env.HAS_IMAGE_REPO_ACCESS
         with:
           registry: ghcr.io
@@ -183,7 +187,7 @@ jobs:
           password: ${{ github.token }}
 
       - name: Build and push
-        uses: docker/build-push-action@v6.19.2
+        uses: docker/build-push-action@v7.1.0
         if: github.actor == github.repository_owner
         with:
           platforms: ${{ matrix.platforms }}

.github/workflows/discord.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - name: on-publish
         if: github.event_name == 'release' && github.event.action == 'published'
-        uses: SethCohen/github-releases-to-discord@v1.19.0
+        uses: SethCohen/github-releases-to-discord@v1.20.0
         with:
           webhook_url: ${{ secrets.DISCORD_WEBHOOK }}
       - name: on-success

.github/workflows/verify-pr.yml

@@ -46,8 +46,8 @@ jobs:
             baseImage: eclipse-temurin:8u312-b07-jre-focal
             platforms: linux/amd64
             mcVersion: 1.12.2
-            # Pin version for Java 8
+            # Pin version for Java 8, be sure to also set in build.yml
-            mcHelperVersion: 1.51.1
+            mcHelperVersion: 1.51.3-java8
     env:
       IMAGE_TO_TEST: ${{ github.repository_owner }}/minecraft-server:test-${{ matrix.variant }}-${{ github.run_id }}
     runs-on: ubuntu-22.04
@@ -59,10 +59,10 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Confirm multi-arch build
-        uses: docker/build-push-action@v6.19.2
+        uses: docker/build-push-action@v7.1.0
         with:
           platforms: ${{ matrix.platforms }}
           # ensure latest base image is used
@@ -73,7 +73,7 @@ jobs:
           cache-from: type=gha,scope=${{ matrix.variant }}
 
       - name: Build for test
-        uses: docker/build-push-action@v6.19.2
+        uses: docker/build-push-action@v7.1.0
         with:
           # Only build single platform since loading multi-arch image into daemon fails with
           # "docker exporter does not currently support exporting manifest lists"

Dockerfile

@@ -26,36 +26,36 @@ ARG APPS_REV=1
 ARG GITHUB_BASEURL=https://github.com
 
 # renovate: datasource=github-releases packageName=itzg/easy-add
-ARG EASY_ADD_VERSION=0.8.11
+ARG EASY_ADD_VERSION=0.8.13
 ADD ${GITHUB_BASEURL}/itzg/easy-add/releases/download/${EASY_ADD_VERSION}/easy-add_${TARGETOS}_${TARGETARCH}${TARGETVARIANT} /usr/bin/easy-add
 RUN chmod +x /usr/bin/easy-add
 
 # renovate: datasource=github-releases packageName=itzg/restify
-ARG RESTIFY_VERSION=1.7.12
+ARG RESTIFY_VERSION=1.7.14
 RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${RESTIFY_VERSION} --var app=restify --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
 # renovate: datasource=github-releases packageName=itzg/rcon-cli
-ARG RCON_CLI_VERSION=1.7.4
+ARG RCON_CLI_VERSION=1.7.5
 RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${RCON_CLI_VERSION} --var app=rcon-cli --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
 # renovate: datasource=github-releases packageName=itzg/mc-monitor
-ARG MC_MONITOR_VERSION=0.16.1
+ARG MC_MONITOR_VERSION=0.16.5
 RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${MC_MONITOR_VERSION} --var app=mc-monitor --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
 # renovate: datasource=github-releases packageName=itzg/mc-server-runner
-ARG MC_SERVER_RUNNER_VERSION=1.14.5
+ARG MC_SERVER_RUNNER_VERSION=1.14.7
 RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${MC_SERVER_RUNNER_VERSION} --var app=mc-server-runner --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
 # renovate: datasource=github-releases packageName=itzg/mc-image-helper versioning=loose
-ARG MC_HELPER_VERSION=1.56.1
+ARG MC_HELPER_VERSION=1.59.1
 ARG MC_HELPER_BASE_URL=${GITHUB_BASEURL}/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
 # used for cache busting local copy of mc-image-helper
 ARG MC_HELPER_REV=1

README.md

@@ -30,6 +30,12 @@ This image only supports Java edition natively; however, if looking for a server
 
 <br clear="left" />
 
+<a href="https://server.pro"><img src="https://server.pro/s/img/logo-short-192.png" alt="Server.pro logo" width="48" align="left" /></a>
+
+<a href="https://server.pro"><b>Server.pro</b></a> - A game server hosting platform offering one-click Minecraft server deployment powered by <code>itzg/minecraft-server</code>, with global locations and an easy-to-use control panel.
+
+<br clear="left" />
+
 <!-- additional sponsors repeat the pattern above: floated logo + blurb + clear-left break -->
 <!-- logo image preferrably hosted on an external, stable site at a size of 48x48px -->
 <!-- link to sponsor site -->

build/alpine/install-packages.sh

@@ -18,6 +18,7 @@ apk add --no-cache -U \
     curl \
     iputils \
     git \
+    git-lfs \
     jq \
     mysql-client \
     tzdata \
@@ -46,3 +47,4 @@ cat <<EOF >> /etc/gitconfig
 	name = Minecraft Server on Docker
 	email = server@example.com
 EOF
+git lfs install

build/ol/install-packages.sh

@@ -46,6 +46,7 @@ dnf install -y \
   zstd \
   $([ "$os_major_version" -ge 10 ] && echo 'bzip2' || echo 'lbzip2') \
   libpcap \
+  libcap \
   libwebp \
   findutils \
   which \
@@ -81,3 +82,4 @@ cat <<EOF >> /etc/gitconfig
 	name = Minecraft Server on Docker
 	email = server@example.com
 EOF
+git lfs install

build/ubuntu/install-packages.sh

@@ -16,6 +16,7 @@ apt-get install -y \
   iputils-ping \
   curl \
   git \
+  git-lfs \
   jq \
   dos2unix \
   mysql-client \
@@ -28,13 +29,9 @@ apt-get install -y \
   nfs-common \
   libpcap0.8 \
   libnuma1 \
+  libcap2-bin \
   ${EXTRA_DEB_PACKAGES}
 
-# Install Git LFS
-curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash
-apt-get update
-apt-get install -y git-lfs
-
 # Clean up APT when done
 apt-get clean
 
@@ -51,3 +48,4 @@ cat <<EOF >> /etc/gitconfig
 	name = Minecraft Server on Docker
 	email = server@example.com
 EOF
+git lfs install

docs/configuration/misc-options.md

@@ -22,6 +22,12 @@ docker run -d --pull=always \
     -p 25565:25565 -e EULA=TRUE --name mc itzg/minecraft-server
 ```
 
+## Clean server libraries
+
+By default, supported server types remove stale server libraries during installation by setting `CLEAN_SERVER_LIBRARIES` to `true`. Set `CLEAN_SERVER_LIBRARIES` to `false` to disable this cleanup if it causes unexpected behavior.
+
+Currently, library cleanup is supported by `TYPE=PAPER`. Other server jar types are not yet supported.
+
 ## Running as alternate user/group ID
 
 By default, the container will switch to and run the Minecraft server as user ID 1000 and group ID 1000; however, that can be changed by setting the environment variables `UID` and `GID`.

docs/misc/autopause-autostop/autostop.md

@@ -8,7 +8,7 @@ An option to stop the server after a specified time has been added for niche app
 
 A `.skip-stop` file can be created in the `/data` directory to make the server skip autostopping, for as long as the file is present. The autostop timer will also be reset.
 
-A starting, example compose file has been provided in [examples/docker-compose-autostop.yml](https://github.com/itzg/docker-minecraft-server/blob/master/examples/docker-compose-autostop.yml).
+A starting, example compose file has been provided in [examples/autostop/compose.yml](https://github.com/itzg/docker-minecraft-server/blob/master/examples/autostop/compose.yml).
 
 Enable the Autostop functionality by setting:
 

docs/mods-and-plugins/index.md

@@ -81,7 +81,13 @@ These paths work well if you want to have a common set of modules in a separate
 
 You can download/copy additional configuration files or other resources before the server starts by using the `APPLY_EXTRA_FILES` environment variable. This is useful for downloading configs that you want to patch or modify during the startup process.
 
-The format uses a `<` separator between the destination path and the source URL/path. The destination path is relative to the `/data` directory. If specifying a source path, it needs to be path mounted within the container.
+The format uses a `<` separator between the destination path and the source URL/path. 
+
+The destination path is relative to the `/data` directory. 
+
+If specifying a source path, rather than URL, it needs to reference a path mounted into the container as a volume. 
+
+A source path can refer to a directory, in which case the files within that directory will be copied into the destination directory. At startup, it will take care of synchronizing the removal of files it copied when they are removed from the source. 
 
 !!! example
 
@@ -150,6 +156,54 @@ Disabling mods within docker compose files:
         mod2.jar
 ```
 
+### Loading container configuration from a pack
+
+A pack can ship its own container configuration so that the server type, version,
+and other variables travel with the pack rather than being declared by the user.
+At startup, before `TYPE` is dispatched, the container can load environment
+variables from a file on disk, a URL, an entry inside an archive, or from the
+`.env` of each `GENERIC_PACK(S)` entry.
+
+- `LOAD_ENV_FROM_GENERIC_PACK`: when `true`, each entry in `GENERIC_PACKS` (after
+  `GENERIC_PACKS_PREFIX`/`SUFFIX` expansion) is probed for a top-level `.env`
+  and each one found is sourced in the same order the packs are applied (later
+  packs override earlier ones, matching the layering of the unpack itself). Packs
+  without a `.env` are skipped without error. URLs are downloaded into
+  `/data/packs/` and reused by the regular generic-pack unpack step, so they are
+  not fetched twice.
+- `LOAD_ENV_FROM_FILE`: container path or URL of a shell-style env file (one
+  `KEY=VALUE` per line). Comments and blank lines are allowed.
+- `LOAD_ENV_FROM_ARCHIVE`: container path or URL of a zip/tar archive containing
+  an env file. The entry is sourced into the environment.
+- `LOAD_ENV_FROM_ARCHIVE_ENTRY`: relative path of the env file inside the archive.
+  Defaults to `.env`.
+
+These can be combined. Load order is: generic packs first, then
+`LOAD_ENV_FROM_FILE`, then `LOAD_ENV_FROM_ARCHIVE` — later loads override
+earlier ones, and all of them **override** values passed via `docker run -e` (or
+compose `environment:`), so the pack's declared values win.
+
+```shell
+docker run -d \
+  -e EULA=TRUE \
+  -e GENERIC_PACK=https://cdn.example.org/my-pack.zip \
+  -e LOAD_ENV_FROM_GENERIC_PACK=true \
+  itzg/minecraft-server
+```
+
+Where `my-pack.zip` contains a `.env` at its root such as:
+
+```env
+TYPE=FABRIC
+VERSION=1.21.1
+FABRIC_LOADER_VERSION=0.16.0
+```
+
+!!! warning
+    The env file is sourced by `bash`, so any shell syntax it contains will be
+    evaluated. Only point these variables at sources you trust. `EULA` cannot be
+    set this way — it is checked before the env file is loaded.
+
 ## Mods/plugins list
 
 You may also download or copy over individual mods/plugins using the `MODS` or `PLUGINS` environment variables. Both are a comma or newline delimited list of

docs/requirements.txt

@@ -1,4 +1,4 @@
-click==8.3.2
+click==8.3.3
 colorama==0.4.6
 deepmerge==2.0
 ghp-import==2.1.0
@@ -10,16 +10,16 @@ mergedeep==1.3.4
 mkdocs==1.6.1
 mkdocs-autorefs==1.4.4
 mkdocs-get-deps==0.2.2
-mkdocstrings==1.0.3
+mkdocstrings==1.0.4
 mkdocstrings-python==2.0.3
-packaging==26.0
+packaging==26.2
-pathspec==1.0.4
+pathspec==1.1.1
-platformdirs==4.9.4
+platformdirs==4.9.6
 Pygments==2.20.0
-pymdown-extensions==10.21.2
+pymdown-extensions==10.21.3
 python-dateutil==2.9.0.post0
 PyYAML==6.0.3
 pyyaml_env_tag==1.1
 six==1.17.0
 watchdog==6.0.0
-zensical==0.0.31
+zensical==0.0.41

docs/types-and-platforms/mod-platforms/modrinth-modpacks.md

@@ -18,7 +18,7 @@ The desired modpack project is specified with the `MODRINTH_MODPACK` environment
 
 - A custom URL of a hosted [mrpack file](https://support.modrinth.com/en/articles/8802351-modrinth-modpack-format-mrpack)
 
-- The container path to a local [mrpack file](https://support.modrinth.com/en/articles/8802351-modrinth-modpack-format-mrpack)
+- The container path to a local [mrpack file](https://support.modrinth.com/en/articles/8802351-modrinth-modpack-format-mrpack). The file name **must have the `.mrpack` extension** in order to be correctly detected as a local file.
 
 ## Modpack version
 

examples/vanilla-tweaks/docker-compose.yml

@@ -10,7 +10,6 @@ services:
       VANILLATWEAKS_FILE: /config/vanillatweaks-datapacks.json
       REMOVE_OLD_VANILLATWEAKS: "TRUE"
     volumes:
-      - data:/data
       - ./vanillatweaks-datapacks.json:/config/vanillatweaks-datapacks.json:ro
   vanillatweaks_sharecode:
     # port is set to 25566 to not conflict with vanillatweaks_file example
@@ -35,7 +34,6 @@ services:
       VANILLATWEAKS_FILE: /config/vanillatweaks-datapacks.json,/config/vanillatweaks-resourcepacks.json,/config/vanillatweaks-craftingtweaks.json
       REMOVE_OLD_VANILLATWEAKS: "TRUE"
     volumes:
-      - data:/data
       - ./vanillatweaks-datapacks.json:/config/vanillatweaks-datapacks.json:ro
       - ./vanillatweaks-resourcepacks.json:/config/vanillatweaks-resourcepacks.json:ro
       - ./vanillatweaks-craftingtweaks.json:/config/vanillatweaks-craftingtweaks.json:ro

files/cf-exclude-include.json

@@ -212,6 +212,11 @@
     },
     "valhelsia-5": {
       "excludes": ["modernfix"]
+    },
+    "wolds-vaults": {
+      "forceIncludes": [
+        "just-enough-resources-jer"
+      ]
     }
   }
 }

files/modrinth-exclude-include.json

@@ -5,7 +5,6 @@
     "AmbientSounds",
     "amecs",
     "Animation_Overhaul",
-    "appleskin",
     "auudio",
     "axolotlbuckets",
     "BadOptimizations",
@@ -28,7 +27,6 @@
     "compass-coords",
     "colorwheel",
     "connectedness",
-    "connector",
     "continuity",
     "controlling",
     "craftpresence",
@@ -39,8 +37,6 @@
     "distraction_free_recipes",
     "drippyloadingscreen",
     "eating-animation",
-    "emi",
-    "emi_loot",
     "emi_trade",
     "emiffect",
     "emitrades",

scripts/start-configuration

@@ -152,6 +152,31 @@ fi
 
 cd /data || exit 1
 
+##########################################
+# Optionally load environment variables from a file or archive entry,
+# allowing packs/artifacts to declare TYPE, VERSION and other settings
+# inside-out. Loaded values override anything passed in through docker -e.
+# Generic packs are processed first so that LOAD_ENV_FROM_FILE and
+# LOAD_ENV_FROM_ARCHIVE can override any values they set.
+
+if isTrue "${LOAD_ENV_FROM_GENERIC_PACK:-false}"; then
+  if ! loadEnvFromGenericPack; then
+    exit 1
+  fi
+fi
+
+if [[ ${LOAD_ENV_FROM_FILE:-} ]]; then
+  if ! loadEnvFromFile "${LOAD_ENV_FROM_FILE}"; then
+    exit 1
+  fi
+fi
+
+if [[ ${LOAD_ENV_FROM_ARCHIVE:-} ]]; then
+  if ! loadEnvFromArchive "${LOAD_ENV_FROM_ARCHIVE}" "${LOAD_ENV_FROM_ARCHIVE_ENTRY:-.env}"; then
+    exit 1
+  fi
+fi
+
 export DECLARED_TYPE=${TYPE^^}
 export DECLARED_VERSION="$VERSION"
 

scripts/start-deployPaper

@@ -11,17 +11,26 @@ handleDebugMode
 : "${PAPER_DOWNLOAD_URL:=}"
 : "${PAPER_CUSTOM_JAR:=}"
 : "${PAPER_CONFIG_DEFAULTS_REPO:=${PAPER_CONFIG_REPO:=https://raw.githubusercontent.com/Shonz1/minecraft-default-configs/main}}"
+: "${CLEAN_SERVER_LIBRARIES:=true}"
 
 resultsFile=/data/.paper.env
 if [[ $PAPER_CUSTOM_JAR ]]; then
   export SERVER="$PAPER_CUSTOM_JAR"
 elif [[ $PAPER_DOWNLOAD_URL ]]; then
-  if ! mc-image-helper install-paper \
+
-    --output-directory=/data \
+  args=(
-    --results-file="$resultsFile" \
+    --output-directory=/data
-    --url="$PAPER_DOWNLOAD_URL"; then
+    --results-file="$resultsFile"
-      logError "Failed to download from custom PaperMC URL"
+    --url="$PAPER_DOWNLOAD_URL"
-      exit 1
+  )
+
+  if [[ $CLEAN_SERVER_LIBRARIES ]]; then
+    args+=(--clean-libraries)
+  fi
+
+  if ! mc-image-helper install-paper "${args[@]}"; then
+    logError "Failed to download from custom PaperMC URL"
+    exit 1
   fi
   applyResultsFile ${resultsFile}
 else
@@ -35,6 +44,11 @@ else
   if [[ $PAPER_BUILD ]]; then
     args+=(--build="$PAPER_BUILD")
   fi
+
+  if [[ $CLEAN_SERVER_LIBRARIES ]]; then
+    args+=(--clean-libraries)
+  fi
+
   if ! mc-image-helper install-paper "${args[@]}"; then
       logError "Failed to download $PAPER_PROJECT"
       exit 1

scripts/start-utils

@@ -26,6 +26,117 @@ function applyResultsFile() {
   set +a
 }
 
+function loadEnvFromFile() {
+  local source=${1?Missing required source argument}
+  local downloaded=
+
+  if isURL "$source"; then
+    mkdir -p /data/.tmp
+    downloaded=$(mktemp -p /data/.tmp)
+    log "Downloading env file from $source"
+    if ! get -o "$downloaded" "$source"; then
+      logError "Failed to download env file from $source"
+      rm -f "$downloaded"
+      return 1
+    fi
+    log "Loading env vars from $source"
+    applyResultsFile "$downloaded"
+    rm -f "$downloaded"
+  elif [ -f "$source" ]; then
+    log "Loading env vars from $source"
+    applyResultsFile "$source"
+  else
+    logError "Env file not found: $source"
+    return 1
+  fi
+}
+
+function loadEnvFromArchive() {
+  local source=${1?Missing required source argument}
+  local entry=${2:-.env}
+  local archive=
+  local downloaded=
+  local tmpdir
+  local rc=0
+
+  mkdir -p /data/.tmp
+
+  if isURL "$source"; then
+    downloaded=$(mktemp -p /data/.tmp)
+    log "Downloading archive from $source"
+    if ! get -o "$downloaded" "$source"; then
+      logError "Failed to download archive from $source"
+      rm -f "$downloaded"
+      return 1
+    fi
+    archive=$downloaded
+  elif [ -f "$source" ]; then
+    archive=$source
+  else
+    logError "Archive not found: $source"
+    return 1
+  fi
+
+  tmpdir=$(mktemp -d -p /data/.tmp)
+  if extract "$archive" "$tmpdir" "$entry" && [ -f "$tmpdir/$entry" ]; then
+    log "Loading env vars from '$entry' in $source"
+    applyResultsFile "$tmpdir/$entry"
+  else
+    logError "Failed to load env entry '$entry' from $source"
+    rc=1
+  fi
+
+  rm -rf "$tmpdir"
+  [[ -n "$downloaded" ]] && rm -f "$downloaded"
+  return $rc
+}
+
+function loadEnvFromGenericPack() {
+  : "${GENERIC_PACKS:=${GENERIC_PACK:-}}"
+  : "${GENERIC_PACKS_PREFIX:=}"
+  : "${GENERIC_PACKS_SUFFIX:=}"
+
+  if [[ -z "${GENERIC_PACKS}" ]]; then
+    logWarning "LOAD_ENV_FROM_GENERIC_PACK is set but GENERIC_PACK(S) is empty"
+    return 0
+  fi
+
+  mkdir -p /data/.tmp
+  IFS=',' read -ra packs <<< "${GENERIC_PACKS}"
+  local loaded=0
+  local pack packEntry packFile tmpdir
+  for packEntry in "${packs[@]}"; do
+    pack="${GENERIC_PACKS_PREFIX}${packEntry}${GENERIC_PACKS_SUFFIX}"
+    if isURL "$pack"; then
+      mkdir -p /data/packs
+      if ! packFile=$(get -o /data/packs --output-filename --skip-up-to-date "$pack"); then
+        logError "Failed to download generic pack $pack"
+        return 1
+      fi
+    else
+      packFile=$pack
+    fi
+
+    if [[ ! -f "$packFile" ]]; then
+      logError "Generic pack not found: $packFile"
+      return 1
+    fi
+
+    tmpdir=$(mktemp -d -p /data/.tmp)
+    # Packs without a .env are valid — silently skip; the unpack step still applies them.
+    if extract "$packFile" "$tmpdir" .env 2>/dev/null && [ -f "$tmpdir/.env" ]; then
+      log "Loading env vars from .env in $pack"
+      applyResultsFile "$tmpdir/.env"
+      loaded=$((loaded + 1))
+    fi
+    rm -rf "$tmpdir"
+  done
+
+  if (( loaded == 0 )); then
+    logWarning "LOAD_ENV_FROM_GENERIC_PACK is set but no pack in GENERIC_PACK(S) contained a .env"
+  fi
+}
+
 function join_by() {
   local d=$1
   shift
@@ -445,17 +556,19 @@ function isType() {
 function extract() {
   src=${1?}
   destDir=${2?}
+  shift 2
+  # remaining args are paths within the archive to extract; if none, extract everything
 
   type=$(file -b --mime-type "${src}")
   case "${type}" in
   application/zip)
-    unzip -o -q -d "${destDir}" "${src}"
+    unzip -o -q -d "${destDir}" "${src}" "$@"
     ;;
   application/x-tar | application/gzip | application/x-gzip | application/x-bzip2)
-    tar -C "${destDir}" -xf "${src}"
+    tar -C "${destDir}" -xf "${src}" "$@"
     ;;
   application/zstd | application/x-zstd)
-    tar -C "${destDir}" --use-compress-program=unzstd -xf "${src}"
+    tar -C "${destDir}" --use-compress-program=unzstd -xf "${src}" "$@"
     ;;
   *)
     logError "Unsupported archive type: $type"

tests/setuponlytests/load-env-from-archive/docker-compose.yml

@@ -0,0 +1,18 @@
+services:
+  mc:
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "true"
+      SETUP_ONLY: "true"
+      LOAD_ENV_FROM_ARCHIVE: /test/load-env.zip
+      MOTD: from-compose
+      LOG_TIMESTAMP: "true"
+      DEBUG: "true"
+      # the following are only used to speed up test execution
+      TYPE: CUSTOM
+      CUSTOM_SERVER: /servers/fake.jar
+      VERSION: 1.18.1
+    volumes:
+      - ./data:/data
+      - ./load-env.zip:/test/load-env.zip
+      - ./fake.jar:/servers/fake.jar

tests/setuponlytests/load-env-from-archive/verify.sh

@@ -0,0 +1 @@
+mc-image-helper assert propertyEquals --file=server.properties --property=motd --expect=from-archive

tests/setuponlytests/load-env-from-file/docker-compose.yml

@@ -0,0 +1,18 @@
+services:
+  mc:
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "true"
+      SETUP_ONLY: "true"
+      LOAD_ENV_FROM_FILE: /test/load-env.env
+      MOTD: from-compose
+      LOG_TIMESTAMP: "true"
+      DEBUG: "true"
+      # the following are only used to speed up test execution
+      TYPE: CUSTOM
+      CUSTOM_SERVER: /servers/fake.jar
+      VERSION: 1.18.1
+    volumes:
+      - ./data:/data
+      - ./load-env.env:/test/load-env.env
+      - ./fake.jar:/servers/fake.jar

tests/setuponlytests/load-env-from-file/load-env.env

@@ -0,0 +1,2 @@
+# Loaded by LOAD_ENV_FROM_FILE during start-configuration
+MOTD=from-env-file

tests/setuponlytests/load-env-from-file/verify.sh

@@ -0,0 +1 @@
+mc-image-helper assert propertyEquals --file=server.properties --property=motd --expect=from-env-file

tests/setuponlytests/load-env-from-generic-pack/docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  mc:
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "true"
+      SETUP_ONLY: "true"
+      GENERIC_PACK: /packs/pack.zip
+      LOAD_ENV_FROM_GENERIC_PACK: "true"
+      MOTD: from-compose
+      LOG_TIMESTAMP: "true"
+      DEBUG: "true"
+      # the following are only used to speed up test execution
+      TYPE: CUSTOM
+      CUSTOM_SERVER: /servers/fake.jar
+      VERSION: 1.18.1
+    volumes:
+      - ./data:/data
+      - ./pack.zip:/packs/pack.zip
+      - ./fake.jar:/servers/fake.jar

tests/setuponlytests/load-env-from-generic-pack/verify.sh

@@ -0,0 +1,2 @@
+mc-image-helper assert propertyEquals --file=server.properties --property=motd --expect=from-generic-pack
+mc-image-helper assert fileExists config/dummy.yml