mirror of
https://github.com/itzg/docker-minecraft-server.git
synced 2024-06-07 19:40:43 +00:00
315 lines
9.1 KiB
Bash
Executable File
315 lines
9.1 KiB
Bash
Executable File
#!/bin/bash
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: "${DEBUG_EXEC:=false}"
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: "${SETUP_ONLY:=false}"
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# shellcheck source=start-utils
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. "${SCRIPTS:-/}start-utils"
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isDebugging && set -x
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if [ -n "$ICON" ]; then
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if [ ! -e server-icon.png ] || isTrue "${OVERRIDE_ICON}"; then
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log "Using server icon from $ICON..."
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if isURL "$ICON"; then
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# Not sure what it is yet...call it "img"
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if ! get -o /tmp/icon.img "$ICON"; then
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log "ERROR: failed to download icon from $ICON"
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exit 1
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fi
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ICON=/tmp/icon.img
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iconSrc="url"
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elif [ -f "$ICON" ]; then
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iconSrc="file"
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else
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log "ERROR: $ICON does not appear to be a URL or existing file"
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exit 1
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fi
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read -r -a specs < <(identify "$ICON" | awk 'NR == 1 { print $2, $3 }')
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if [ "${specs[0]} ${specs[1]}" = "PNG 64x64" ]; then
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if [ $iconSrc = url ]; then
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mv -f /tmp/icon.img /data/server-icon.png
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else
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cp -f "$ICON" /data/server-icon.png
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fi
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elif [ "${specs[0]}" = GIF ]; then
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log "Converting GIF image to 64x64 PNG..."
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convert "$ICON"[0] -resize 64x64! /data/server-icon.png
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else
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log "Converting image to 64x64 PNG..."
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convert "$ICON" -resize 64x64! /data/server-icon.png
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fi
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fi
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fi
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canUseRollingLogs=true
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useFallbackJvmFlag=false
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patchLog4jConfig() {
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file=${1?}
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url=${2?}
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if ! get -o "$file" "$url"; then
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log "ERROR: failed to download corrected log4j config, fallback to JVM flag"
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useFallbackJvmFlag=true
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return 1
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fi
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JVM_OPTS="-Dlog4j.configurationFile=${file} ${JVM_OPTS}"
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canUseRollingLogs=false
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}
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# Patch Log4j remote code execution vulnerability
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# See https://www.minecraft.net/en-us/article/important-message--security-vulnerability-java-edition
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if versionLessThan 1.7; then
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: # No patch required here.
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elif isFamily VANILLA && versionLessThan 1.12; then
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patchLog4jConfig log4j2_17-111.xml https://launcher.mojang.com/v1/objects/dd2b723346a8dcd48e7f4d245f6bf09e98db9696/log4j2_17-111.xml
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elif isFamily VANILLA && versionLessThan 1.17; then
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patchLog4jConfig log4j2_112-116.xml https://launcher.mojang.com/v1/objects/02937d122c86ce73319ef9975b58896fc1b491d1/log4j2_112-116.xml
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# See https://purpurmc.org/docs/Log4j/
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elif isType PURPUR && versionLessThan 1.17; then
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patchLog4jConfig purpur_log4j2_1141-1165.xml https://purpurmc.org/docs/xml/purpur_log4j2_1141-1165.xml
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elif isType PURPUR && versionLessThan 1.18.1; then
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patchLog4jConfig purpur_log4j2_117.xml https://purpurmc.org/docs/xml/purpur_log4j2_117.xml
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elif versionLessThan 1.18.1; then
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useFallbackJvmFlag=true
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fi
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if ${useFallbackJvmFlag}; then
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JVM_OPTS="-Dlog4j2.formatMsgNoLookups=true ${JVM_OPTS}"
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fi
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if versionLessThan 1.7; then
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: # No patch required here.
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elif versionLessThan 1.18.1; then
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if isTrue ${SKIP_LOG4J_PATCHER:-false}; then
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log "Skipping Log4jPatcher, make sure you are not affected"
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else
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JVM_OPTS="-javaagent:/image/Log4jPatcher.jar ${JVM_OPTS}"
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fi
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fi
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if isTrue ${ENABLE_ROLLING_LOGS:-false}; then
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if ! ${canUseRollingLogs}; then
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log "ERROR: Using rolling logs is currently not possible in the selected version due to CVE-2021-44228"
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exit 1
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fi
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# Set up log configuration
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LOGFILE="/data/log4j2.xml"
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if [ ! -e "$LOGFILE" ]; then
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log "Creating log4j2.xml in ${LOGFILE}"
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cp /image/log4j2.xml "$LOGFILE"
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else
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log "log4j2.xml already created, skipping"
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fi
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JVM_OPTS="-Dlog4j.configurationFile=/data/log4j2.xml ${JVM_OPTS}"
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fi
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# Optional disable console
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if versionLessThan 1.14 && [[ ${CONSOLE,,} = false ]]; then
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EXTRA_ARGS+=" --noconsole"
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fi
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# Optional disable GUI for headless servers
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if [[ ${GUI,,} = false ]]; then
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EXTRA_ARGS+=" nogui"
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fi
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expandedDOpts=
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if [ -n "$JVM_DD_OPTS" ]; then
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for dopt in $JVM_DD_OPTS
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do
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expandedDOpts="${expandedDOpts} -D${dopt/:/=}"
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done
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fi
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if isTrue "${ENABLE_JMX}"; then
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: "${JMX_PORT:=7091}"
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JVM_OPTS="${JVM_OPTS}
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-Dcom.sun.management.jmxremote.local.only=false
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-Dcom.sun.management.jmxremote.port=${JMX_PORT}
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-Dcom.sun.management.jmxremote.rmi.port=${JMX_PORT}
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-Dcom.sun.management.jmxremote.authenticate=false
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-Dcom.sun.management.jmxremote.ssl=false
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-Dcom.sun.management.jmxremote.host=${JMX_BINDING:-0.0.0.0}
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-Djava.rmi.server.hostname=${JMX_HOST:-localhost}"
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log "JMX is enabled. Make sure you have port forwarding for ${JMX_PORT}"
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fi
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if isTrue "${USE_AIKAR_FLAGS}"; then
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# From https://mcflags.emc.gs/
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if (( $(normalizeMemSize "${MAX_MEMORY}") >= $(normalizeMemSize 12g) )); then
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log "Using Aikar's >12GB flags"
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G1NewSizePercent=40
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G1MaxNewSizePercent=50
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G1HeapRegionSize=16M
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G1ReservePercent=15
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InitiatingHeapOccupancyPercent=20
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else
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log "Using Aikar's flags"
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G1NewSizePercent=30
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G1MaxNewSizePercent=40
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G1HeapRegionSize=8M
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G1ReservePercent=20
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InitiatingHeapOccupancyPercent=15
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fi
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JVM_XX_OPTS="${JVM_XX_OPTS}
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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=${G1NewSizePercent}
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-XX:G1MaxNewSizePercent=${G1MaxNewSizePercent}
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-XX:G1HeapRegionSize=${G1HeapRegionSize}
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-XX:G1ReservePercent=${G1ReservePercent}
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-XX:G1HeapWastePercent=5
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-XX:G1MixedGCCountTarget=4
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-XX:InitiatingHeapOccupancyPercent=${InitiatingHeapOccupancyPercent}
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-XX:G1MixedGCLiveThresholdPercent=90
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-XX:G1RSetUpdatingPauseTimePercent=5
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-XX:SurvivorRatio=32
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-XX:+PerfDisableSharedMem
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-XX:MaxTenuringThreshold=1
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-Dusing.aikars.flags=https://mcflags.emc.gs
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-Daikars.new.flags=true
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"
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fi
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if isTrue "${USE_FLARE_FLAGS}"; then
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JVM_XX_OPTS="${JVM_XX_OPTS}
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-XX:+UnlockDiagnosticVMOptions
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-XX:+DebugNonSafepoints
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"
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fi
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if isTrue "${USE_SIMD_FLAGS}"; then
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JVM_XX_OPTS="${JVM_XX_OPTS}
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--add-modules=jdk.incubator.vector
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"
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fi
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if isTrue "${DEBUG_MEMORY}"; then
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log "Memory usage and availability (in MB)"
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uname -a
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free -m
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fi
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if [[ ${INIT_MEMORY} || ${MAX_MEMORY} ]]; then
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log "Setting initial memory to ${INIT_MEMORY:=${MEMORY}} and max to ${MAX_MEMORY:=${MEMORY}}"
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if [[ ${INIT_MEMORY} ]]; then
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JVM_OPTS="-Xms${INIT_MEMORY} ${JVM_OPTS}"
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fi
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if [[ ${MAX_MEMORY} ]]; then
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JVM_OPTS="-Xmx${MAX_MEMORY} ${JVM_OPTS}"
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fi
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fi
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function copyFilesForCurseForge() {
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# copy player modification files unconditionally since their
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# processing into json is additive anyway
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[ -f /data/ops.txt ] && cp -f /data/ops.txt "${FTB_DIR}/"
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[ -f /data/white-list.txt ] && cp -f /data/white-list.txt "${FTB_DIR}/"
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if [ ! -e "${FTB_DIR}/server-icon.png" ] && [ -e /data/server-icon.png ]; then
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cp -f /data/server-icon.png "${FTB_DIR}/"
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fi
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cp -f /data/eula.txt "${FTB_DIR}/"
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}
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mcServerRunnerArgs=(
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--stop-duration "${STOP_DURATION:-60}s"
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--named-pipe "${CONSOLE_IN_NAMED_PIPE:-/tmp/minecraft-console-in}"
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)
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if [[ ${STOP_SERVER_ANNOUNCE_DELAY} ]]; then
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mcServerRunnerArgs+=(--stop-server-announce-delay "${STOP_SERVER_ANNOUNCE_DELAY}s")
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fi
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if [[ ${TYPE} == "CURSEFORGE" && "${SERVER}" ]]; then
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copyFilesForCurseForge
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cd "${FTB_DIR}" || (log "ERROR: can't go into ${FTB_DIR}"; exit 1)
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log "Starting CurseForge server in ${FTB_DIR}..."
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if isTrue "${DEBUG_EXEC}"; then
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set -x
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fi
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exec mc-server-runner ${bootstrapArgs} "${mcServerRunnerArgs[@]}" java $JVM_XX_OPTS $JVM_OPTS $expandedDOpts -jar "$(basename "${SERVER}")" "$@" $EXTRA_ARGS
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elif [[ ${TYPE} == "CURSEFORGE" ]]; then
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mcServerRunnerArgs+=(--shell bash)
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copyFilesForCurseForge
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cat > "${FTB_DIR}/settings-local.sh" <<EOF
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export MIN_RAM="${INIT_MEMORY}"
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export MAX_RAM="${MAX_MEMORY}"
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export JAVA_PARAMETERS="${JVM_XX_OPTS} ${JVM_OPTS} $expandedDOpts"
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EOF
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# patch CurseForge cfg file, if present
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if [ -f "${FTB_DIR}/settings.cfg" ] && [[ ${MAX_MEMORY} ]]; then
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sed -i "s/MAX_RAM=[^;]*/MAX_RAM=${MAX_MEMORY}/" "${FTB_DIR}/settings.cfg"
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fi
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cd "${FTB_DIR}" || (log "ERROR: can't go into ${FTB_DIR}"; exit 1)
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log "Running FTB ${FTB_SERVER_START} in ${FTB_DIR} ..."
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finalArgs="${FTB_SERVER_START}"
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if isTrue "${SETUP_ONLY}"; then
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echo "SETUP_ONLY: ${finalArgs}"
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exit
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fi
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if isTrue "${DEBUG_EXEC}"; then
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set -x
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fi
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if isTrue "${EXEC_DIRECTLY:-false}"; then
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"${finalArgs[@]}"
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else
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exec mc-server-runner "${mcServerRunnerArgs[@]}" "${finalArgs[@]}"
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fi
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elif [[ $SERVER =~ run.sh ]]; then
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log "Using Forge supplied run.sh script..."
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echo $JVM_XX_OPTS $JVM_OPTS $expandedDOpts > user_jvm_args.txt
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if isTrue ${SETUP_ONLY}; then
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echo "SETUP_ONLY: bash ${SERVER}"
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exit
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fi
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exec mc-server-runner "${mcServerRunnerArgs[@]}" --shell bash "${SERVER}"
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else
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# If we have a bootstrap.txt file... feed that in to the server stdin
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if [ -f /data/bootstrap.txt ]; then
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bootstrapArgs="--bootstrap /data/bootstrap.txt"
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fi
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log "Starting the Minecraft server..."
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# shellcheck disable=SC2206
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finalArgs=(
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$JVM_XX_OPTS
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$JVM_OPTS
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$expandedDOpts
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-jar "$SERVER"
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"$@" $EXTRA_ARGS
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)
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if isTrue ${SETUP_ONLY}; then
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echo "SETUP_ONLY: java ${finalArgs[*]}"
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exit
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fi
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if isTrue "${DEBUG_EXEC}"; then
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set -x
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fi
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if isTrue "${EXEC_DIRECTLY:-false}"; then
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exec java "${finalArgs[@]}"
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else
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exec mc-server-runner ${bootstrapArgs} "${mcServerRunnerArgs[@]}" java "${finalArgs[@]}"
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fi
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fi
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