MC 1.21

compose.yml

services:
# TODO
# luckyperms, proxy, postgres shared, discord/matrix brigde, ops, whitelist, custom datapacks for init, litmatica, carpet, way to sync mods/datapacks from GH, anti-xray, anti-cheap, openresty for reverseproxy for dynmap, (maybe a keycloak plugin for forward auth on proxy), unifiedmetrics when it updates to 1.21 or find a real otel one, grafana+prom setup, rcon web?, better backup endpoints, worldgen mods
  mc:
    image: itzg/minecraft-server:java21-graalvm
    container_name: "MinecraftFabric"
    ports:
      - "25565:25565"
      - "8123:8123"
    environment:
      EULA: "TRUE"
      ONLINE_MODE: "TRUE"
      VERSION: 1.21
      TYPE: FABRIC
      #OPS: "" # replace with uuid
      #EXISTING_OPS_FILE : "MERGE"
      # unifiedmetrics @ xwRVtqbA not on 1.21
      # carpet,carpet-extra @ TQTTVgYE not on 1.21, TjVkbhbd is on 1.21
      # anti-xray removed since mixins are erroring
      # dcintegration todo, need to document setup
      MODRINTH_PROJECTS: fabric-api,lithium,vmp-fabric:OPdBcjR7,c2me-fabric:9W7QWKBL,noisium,krypton,chunky,tcdcommons,better-stats,luckperms,shulkerboxtooltip,dynmap:ipBhc6VW,appleskin,ferrite-core,modernfix,spark
      # LITEMATICA FORKED @ https://github.com/sakura-ryoko
      # CURSEFORGE_PROJECTS: litematica,malilib
      # https://vanillatweaks.net/share#dFRmhh
      MOTD: "Minecraft Fabric 1.21"
      # ICON: "https://example.com/icon.png"
      SPAWN_PROTECTION: 0
      MAX_MEMORY: 8G
      DIFFICULTY: "Normal"
      # VIEW_DISTANCE: 16
      ANNOUNCE_PLAYER_ACHIEVEMENTS: true
      MAX_PLAYERS: 9001
      # JVM Flags untuned
      JVM_OPTS: "--add-modules=jdk.incubator.vector -XX:+UseG1GC -XX:MaxGCPauseMillis=130 -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=28 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=20 -XX:G1MixedGCCountTarget=3 -XX:InitiatingHeapOccupancyPercent=10 -XX:G1MixedGCLiveThresholdPercent=90 -XX:SurvivorRatio=32 -XX:MaxTenuringThreshold=1 -XX:+PerfDisableSharedMem -XX:G1SATBBufferEnqueueingThresholdPercent=30 -XX:G1ConcMarkStepDurationMillis=5 -XX:G1ConcRSHotCardLimit=16 -XX:G1ConcRefinementServiceIntervalMillis=150 -XX:G1RSetUpdatingPauseTimePercent=0 -XX:+UseNUMA -XX:-DontCompileHugeMethods -XX:MaxNodeLimit=240000 -XX:NodeLimitFudgeFactor=8000 -XX:ReservedCodeCacheSize=400M -XX:NonNMethodCodeHeapSize=12M -XX:ProfiledCodeHeapSize=194M -XX:NonProfiledCodeHeapSize=194M -XX:NmethodSweepActivity=1 -XX:+UseFastUnorderedTimeStamps -XX:+UseCriticalJavaThreadPriority -XX:AllocatePrefetchStyle=3 -XX:+AlwaysActAsServerClassMachine -XX:+UseTransparentHugePages -XX:LargePageSizeInBytes=2M -XX:+UseLargePages -XX:+EagerJVMCI -Dgraal.TuneInlinerExploration=1 -Dgraal.LoopRotation=true -Dgraal.OptWriteMotion=true -Dgraal.CompilerConfiguration=enterprise"
      RCON_CMDS_STARTUP:  |-
        /gamerule doFireTick false
        /chunky world overworld
        /chunky spawn
        /chunky radius 1000
        /chunky start
        /dynmap fullrender overworld 0 0
      RCON_CMDS_FIRST_CONNECT: |-
        /chunky pause
        /dynmap pause all
      RCON_CMDS_LAST_DISCONNECT: |-
        /chunky continue
        /dynmap pause none
    volumes:
      - ./mc-data:/data
    depends_on:
      restore-backup:
        condition: service_completed_successfully


  restore-backup:
    # Same image as mc, but any base image with bash and tar will work
    image: itzg/mc-backup
    user: "1000"
    restart: no
    entrypoint: restore-tar-backup
    volumes:
      # Must be same mount as mc service, needs to be writable
      - ./mc-data:/data
      # Must be same mount as backups service, but can be read-only
      - ./mc-backups:/backups:ro


  backups:
    image: itzg/mc-backup
    user: "1000"
    depends_on:
      mc:
        condition: service_healthy
    environment:
      BACKUP_INTERVAL: "2h"
      RCON_HOST: mc
      # since this service waits for mc to be healthy, no initial delay is needed
      INITIAL_DELAY: 0
      # As an example, to backup only the world data:
      # INCLUDES: world,world_nether,world_the_end
    volumes:
      - ./mc-data:/data:ro
      - ./mc-backups:/backups