A Minecraft server running on Paper.

Volumes

• /var/lib/minecraft/plugins
• /var/lib/minecraft/world
• /var/lib/minecraft/world_nether
• /var/lib/minecraft/world_the_end
• /var/lib/minecraft/ops.json
• /var/lib/minecraft/whitelist.json
• /var/lib/minecraft/banned-ips.json
• /var/lib/minecraft/banned-players.json

Environment Variables

SERVER_NAME

The name of the server.

MOTD

Message of the day.

LEVEL_SEED

Seed for level generation.

BUKKIT_CONNECTION_THROTTLE

• default: 4000

The delay before a client is allowed to connect again after a recent connection attempt in milliseconds. 0 disables the limit.

OP_PERMISSION_LEVEL

• default: 4

One of:

• 1: Ops can bypass spawn protection.
• 2: Ops can use /clear, /difficulty, /effect, /gamemode, /gamerule, /give, and /tp, and can edit command blocks.
• 3: Ops can use /ban, /deop, /kick, and /op.
• 4: Ops can use /stop.

ALLOW_NETHER

• default: true

Whether players can travel to the Nether.

ALLOW_FLIGHT

• default: false

Allows users to use flight on your server while in Survival mode, if they have a mod that provides flight installed. No effect in Creative mode.

ANNOUNCE_PLAYER_ACHIEVEMENTS

• default: true

Whether there is a server announcment when a player gets an achievement.

MAX_WORLDSIZE

• default: 29999984

This sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain.

LEVEL_TYPE

• default: DEFAULT

One of:

• DEFAULT: Standard world with hills, valleys, water, etc.
• FLAT: A flat world with no features, meant for building.
• LARGEBIOMES: Same as default but all biomes are larger.
• AMPLIFIED: Same as default but world-generation height limit is increased.
• CUSTOMIZED: Same as default unless generator-settings is set to a preset.

MAX_BUILD_HEIGHT

• default: 256

The maximum height in which building is allowed. Terrain may still naturally generate above a low height limit.

SPAWN_NPCS

• default: true

Determines whether villagers will be spawned.

SPAWN_ANIMALS

• default: true

Determines if animals will be able to spawn.

SPAWN_MONSTERS

• default: true

Determines if monsters will be spawned.

GENERATE_STRUCTURES

• default: true

Defines whether structures will be generated.

WHITELIST

• default: false

Whether the whitelist is used.

HARDCORE

• default: false

If set to true, players will be set to spectator mode if they die.

PVP

• default: true

Whether PvP is enabled.

DIFFICULTY

• default: 2

Defines the difficulty of the server.

One of:

• 0: Peaceful
• 1: Easy
• 2: Normal
• 3: Hard

GAMEMODE

• default: 0

Defines the mode of gameplay.

One of:

• 0: Survival
• 1: Creative
• 2: Adventure
• 3: Spectator

ONLINE_MODE

• default: true

Whether to authenticate players with the mojang database. Disable it when running behind bungeecord.

PLAYER_IDLE_TIMEOUT

• default: 0

If non-zero, players are kicked from the server if they are idle for more than that many minutes.

MAX_PLAYERS

• default: 20

The maximum number of players that can play on the server at the same time.

VIEW_DISTANCE

• default: 10

Sets the amount of world data the server sends the client, measured in chunks in each direction of the player (radius, not diameter).

BUNGEECORD

• default: false

Whether the server runs behind a bungeecord instance.

MIN_RAM

• default: 512M Minimal heapsize for the jvm.

MAX_RAM

• default: 512M Maximal heapsize for the jvm.

Ports

• 25565

Capabilities

• DAC_OVERRIDE
• FOWNER
• NET_BIND_SERVICE
• SETGID
• SETUID