from bundlewrap.metadata import atomic defaults = { 'apt': { 'packages': { 'openjdk-17-jre': {}, }, }, 'backups': { 'paths': { '/home/minecraft', }, }, 'icinga2_api': { 'minecraft': { 'services': { 'MINECRAFT SERVER': { 'command_on_monitored_host': '/usr/local/share/icinga/plugins/check_systemd_unit minecraft', }, }, }, }, 'minecraft': { 'java_opts': { # https://aikar.co/2018/07/02/tuning-the-jvm-g1gc-garbage-collector-flags-for-minecraft/ '-Daikars.new.flags': 'true', '-Dusing.aikars.flags': 'https://mcflags.emc.gs', '-XX:+AlwaysPreTouch': None, '-XX:+DisableExplicitGC': None, '-XX:+ParallelRefProcEnabled': None, '-XX:+PerfDisableSharedMem': None, '-XX:+UnlockExperimentalVMOptions': None, '-XX:G1HeapRegionSize': '16M', '-XX:G1HeapWastePercent': 5, '-XX:G1MaxNewSizePercent': 50, '-XX:G1MixedGCCountTarget': 4, '-XX:G1MixedGCLiveThresholdPercent': 90, '-XX:G1NewSizePercent': 40, '-XX:G1RSetUpdatingPauseTimePercent': 5, '-XX:G1ReservePercent': 15, '-XX:InitiatingHeapOccupancyPercent': 20, '-XX:MaxGCPauseMillis': 200, '-XX:MaxTenuringThreshold': 1, '-XX:SurvivorRatio': 32, '-javaagent:/home/minecraft/jolokia.jar=port=25576,host=localhost': None, }, }, 'telegraf': { 'input_plugins': { 'builtin': { 'jolokia2_agent': [{ 'urls': ['http://localhost:25576/jolokia'], 'interval': '10s', 'metric': [ { 'name': 'minecraft_tick', 'mbean': 'net.minecraft.server:type=Server', 'paths': [ 'averageTickTime', ], }, { 'name': 'minecraft_memory', 'mbean': 'java.lang:type=Memory', 'paths': [ 'HeapMemoryUsage', 'NonHeapMemoryUsage', 'ObjectPendingFinalizationCount', ], }, { 'name': 'minecraft_gc', 'mbean': 'java.lang:name=*,type=GarbageCollector', 'paths': [ 'CollectionTime', 'CollectionCount', ], 'tag_keys': ['name'], }, { 'name': 'minecraft_mempool', 'mbean': 'java.lang:name=*,type=MemoryPool', 'paths': [ 'CollectionUsage', 'PeakUsage', 'Usage', ], 'tag_keys': ['name'], }, { 'name': 'minecraft_os', 'mbean': 'java.lang:type=OperatingSystem', 'paths': [ 'OpenFileDescriptorCount', 'ProcessCpuLoad', 'ProcessCpuTime', ], }, ], }], }, }, }, 'users': { 'minecraft': {}, }, 'zfs': { 'datasets': { 'tank/minecraft': {}, 'tank/minecraft/overworld': { 'mountpoint': '/home/minecraft/world', 'compression': 'on', 'needed_by': { 'directory:/home/minecraft/world', }, }, 'tank/minecraft/nether': { 'mountpoint': '/home/minecraft/world_nether', 'compression': 'on', 'needed_by': { 'directory:/home/minecraft/world_nether', }, }, 'tank/minecraft/end': { 'mountpoint': '/home/minecraft/world_the_end', 'compression': 'on', 'needed_by': { 'directory:/home/minecraft/world_the_end', }, }, }, }, } @metadata_reactor.provides( 'minecraft/java_opts', ) def heap_to_java_opts(metadata): heap_mb = metadata.get('minecraft/heap_mb') return { 'minecraft': { 'java_opts': { f'-Xms{heap_mb}M': None, f'-Xmx{heap_mb}M': None, }, }, } @metadata_reactor.provides( 'firewall/port_rules/25565', ) def firewall(metadata): return { 'firewall': { 'port_rules': { '25565': atomic(metadata.get('minecraft/restrict-to', set())), }, }, }