feat: add initial Dockerfile

build/package/Dockerfile

@@ -0,0 +1,35 @@
+# MC Java Docker container
+FROM debian:stable-slim
+
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+RUN apt-get update
+RUN apt-get install -y curl openjdk-17-jre-headless
+
+RUN groupadd -g 1000 minecraft &&\
+    useradd -r -s /bin/false -u 1000 -g 1000 -m minecraft
+
+RUN mkdir -m 755 /data
+    #chown minecraft:minecraft /data
+
+RUN curl -sfL -o /server.jar https://launcher.mojang.com/v1/objects/c8f83c5655308435b3dcf03c06d9fe8740a77469/server.jar
+
+COPY scripts/start.sh /start.sh
+
+RUN chmod +x /start.sh
+RUN echo "eula=true" > eula.txt
+
+ENV MEMORY="1G"
+
+#USER minecraft
+EXPOSE 25565/tcp
+CMD ["/start.sh"]
+
+
+# To build
+# docker buildx build \
+ #      -t mc-server \
+ #      -f ./build/package/Dockerfile . \
+ #      --load

scripts/start.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+umask 0002
+chmod g+w /data
+
+# Utils
+isTrue() {
+  result=
+
+  case $1 in
+  true | on)
+    result=0
+    ;;
+  *)
+    result=1
+    ;;
+  esac
+
+  return ${result}
+}
+
+# Copy content from /run/data/ to /data/.
+# This is useful for mounting read-only filesystem such as ConfigMaps in Kubernetes.
+if [ -d /run/data ]; then
+   cp -rf /run/data/ /
+fi
+
+# Environment variables
+INIT_MEMORY=${INIT_MEMORY:-${MEMORY}}
+MAX_MEMORY=${MAX_MEMORY:-${MEMORY}}
+
+JVM_XX_OPTS=${JVM_XX_OPTS:-"-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1"}
+JVM_OPTS="-Xms$INIT_MEMORY -Xmx$MAX_MEMORY"
+D_OPTS=${D_OPTS:-"-DPaper.IgnoreJavaVersion=true -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true"}
+
+if isTrue "$EULA"; then
+  D_OPTS="$D_OPTS -Dcom.mojang.eula.agree=true"
+fi
+
+# Start the server
+# shellcheck disable=SC2086 disable=SC2068
+exec java $JVM_XX_OPTS $JVM_OPTS $D_OPTS -jar /server.jar $@