testing

dockerfiles/Dockerfile.base

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+FROM debian:stable-slim
+
+ARG JAVA_VERSION=latest
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Create minecraft user
+RUN groupadd -g 1000 minecraft && \
+    useradd -m -u 1000 -g 1000 -d /app minecraft
+
+# Install scripting dependencies
+RUN apt-get update && \
+    apt-get install -y curl git gpg jq procps screen strace && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Eclipse Adoptium DEB installer package
+RUN set -ux && \
+  # Download the Eclipse Adoptium GPG key
+  curl -s https://packages.adoptium.net/artifactory/api/gpg/key/public \
+    | gpg --dearmor | tee /etc/apt/trusted.gpg.d/adoptium.gpg > /dev/null && \
+  # Configure the Eclipse Adoptium apt repository
+  VERSION_CODENAME="$(awk -F= '/^VERSION_CODENAME/{print $2}' /etc/os-release)" && \
+  echo "deb https://packages.adoptium.net/artifactory/deb $VERSION_CODENAME main" \
+    | tee /etc/apt/sources.list.d/adoptium.list
+
+# Install Adoptium Temurin (OpenJDK Distribution)
+RUN set -ux && \
+  # Grab latest LTS version if not specified
+  if [ "$JAVA_VERSION" = "latest" ]; then \
+    JAVA_VERSION="$( \
+      curl -s https://api.adoptium.net/v3/info/available_releases \
+        | jq '.most_recent_lts' \
+    )"; \
+  fi && \
+  # Install the Temurin version
+  apt-get update && \
+  apt-get install -y "temurin-${JAVA_VERSION}-jre" && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/*

dockerfiles/Dockerfile.spigot

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+FROM "${BASE_IMAGE:-localhost/minecraft-base}":"${BASE_TAG:-latest}"
+
+# Minecraft version
+ARG VERSION=latest
+
+# SpigotMC BuildTools URL
+ARG BASE_URL="https://hub.spigotmc.org/jenkins/job/BuildTools/"
+ARG ARTIFACT_PATH="lastSuccessfulBuild/artifact/target/BuildTools.jar"
+
+# Download files and run as user
+USER minecraft
+WORKDIR /app
+
+# Download and build Spigot using BuildTools
+RUN set -ux && \
+# Grab latest version if not specified
+  if [ "$VERSION" = "latest" ]; then \
+    VERSION="$( \
+      curl -s https://launchermeta.mojang.com/mc/game/version_manifest.json \
+        | jq -r '.latest.release' \
+    )"; \
+  fi && \
+  # Download BuildTools.jar
+  curl -s -o BuildTools.jar "${BASE_URL}${ARTIFACT_PATH}" && \
+  ## Run BuildTools to build specified version
+  java -jar BuildTools.jar --rev "$VERSION" --compile SPIGOT
+
+# Generate initial settings
+RUN java -jar server.jar --initSettings --nogui
+
+# Back to root to copy the entrypoint in
+USER root
+WORKDIR /app
+
+# Copy in entrypoint script
+COPY ../entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+# Run app as minecraft user
+USER minecraft
+WORKDIR /app
+
+# Expose port and run entrypoint script
+EXPOSE 25565
+ENTRYPOINT ["entrypoint.sh"]

dockerfiles/Dockerfile.vanilla

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+FROM "${BASE_IMAGE:-localhost/minecraft-base}":"${BASE_TAG:-latest}"
+
+# Minecraft version
+ARG VERSION=latest
+
+# Download files and run as user
+USER minecraft
+WORKDIR /app
+
+# Download and verify sha1sum for server.jar
+RUN set -ux && \
+# Grab latest version if not specified
+  if [ "$VERSION" = "latest" ]; then \
+    VERSION="$( \
+      curl -s https://launchermeta.mojang.com/mc/game/version_manifest.json \
+        | jq -r '.latest.release' \
+    )"; \
+  fi && \
+  # Get server.jar based on $VERSION
+  curl -s https://launchermeta.mojang.com/mc/game/version_manifest.json \
+    | jq -r --arg id "$VERSION" '.versions[] | select(.id == $id) | .url' \
+    | xargs curl -s | jq -r '.downloads.server' | tee "/tmp/dl.json" \
+    | jq -r '.url' | xargs curl -s -o server.jar && \
+  # Get SHA1 hash of server.jar and compare
+  SHA1="$(sha1sum server.jar | awk '{print $1}')" && \
+  EXPECTED="$(jq -r .sha1 /tmp/dl.json)"; rm /tmp/dl.json && \
+  if [ ! "$SHA1" = "$EXPECTED" ]; then \
+    echo "[ERROR] SHA1=\"$SHA1\" expected \"$EXPECTED\""; \
+    exit 1; \
+  fi
+
+# Generate initial settings
+RUN java -jar server.jar --initSettings --nogui
+
+# Back to root to copy the entrypoint in
+USER root
+WORKDIR /app
+
+# Copy in entrypoint script
+COPY ../entrypoint.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+# Run app as minecraft user
+USER minecraft
+WORKDIR /app
+
+# Expose port and run entrypoint script
+EXPOSE 25565
+ENTRYPOINT ["entrypoint.sh"]