54 lines
1.8 KiB
Docker
54 lines
1.8 KiB
Docker
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FROM openjdk:8-jre
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# This argument should be set when building
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ARG VERSION
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ARG JAR_URL="https://maven.fabricmc.net/net/fabricmc/fabric-installer/$VERSION/fabric-installer-$VERSION.jar"
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WORKDIR /mc
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# Download installer jar
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ADD "https://maven.fabricmc.net/net/fabricmc/fabric-installer/$VERSION/fabric-installer-$VERSION.jar" fabric-installer.jar
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# Install fabric, sign eula & remove installer
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RUN java -jar fabric-installer.jar server -downloadMinecraft && \
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rm fabric-installer.jar && \
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echo "eula=true" > eula.txt
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# Store the cache in an anonymous volume, which means it won't get stored in the other volumes
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VOLUME /mc/config/cache
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# Default value to keep users from eating up all ram accidentally
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ENV XMS=4
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WORKDIR /mc/config
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# Source for flags:
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# https://aikar.co/2018/07/02/tuning-the-jvm-g1gc-garbage-collector-flags-for-minecraft/
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# Certain flags auto-scale if XMS is greater than 12 (see link for info)
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ENTRYPOINT mv -n /mc/*.jar /mc/config && java \
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-Xms"${XMS}G" \
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-Xmx"${XMX:-$XMS}G" \
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-XX:+UseG1GC \
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-XX:+ParallelRefProcEnabled \
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-XX:MaxGCPauseMillis=200 \
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-XX:+UnlockExperimentalVMOptions \
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-XX:+DisableExplicitGC \
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-XX:+AlwaysPreTouch \
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-XX:G1NewSizePercent="$([ $XMS -gt 12 ] && echo 40 || echo 30)" \
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-XX:G1MaxNewSizePercent="$([ $XMS -gt 12 ] && echo 50 || echo 40)" \
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-XX:G1HeapRegionSize="$([ $XMS -gt 12 ] && echo 16 || echo 8)"M \
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-XX:G1ReservePercent="$([ $XMS -gt 12 ] && echo 15 || echo 20)" \
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-XX:G1HeapWastePercent=5 \
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-XX:G1MixedGCCountTarget=4 \
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-XX:InitiatingHeapOccupancyPercent="$([ $XMS -gt 12 ] && echo 20 || echo 15)" \
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-XX:G1MixedGCLiveThresholdPercent=90 \
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-XX:G1RSetUpdatingPauseTimePercent=5 \
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-XX:SurvivorRatio=32 \
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-XX:+PerfDisableSharedMem \
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-XX:MaxTenuringThreshold=1 \
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-Dusing.aikars.flags=https://mcflags.emc.gs \
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-Daikars.new.flags=true \
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-jar fabric-server-launch.jar \
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--universe /mc/worlds \
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--nogui
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