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+A [Minecraft](https://minecraft.net) server running on [Spigot](https://www.spigotmc.org/).
+
+## 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](http://minecraft.gamepedia.com/Seed_(level_generation)) 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](http://minecraft.gamepedia.com/Mob#Passive) will be able to spawn.
+
+### SPAWN_MONSTERS
+- default: true
+
+Determines if monsters will be spawned. 
+
+### GENERATE_STRUCTURES
+- default: true
+
+Defines whether [structures](http://minecraft.gamepedia.com/Generated_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](http://minecraft.gamepedia.com/Difficulty) of the server.
+
+One of:
+- 0: Peaceful
+- 1: Easy
+- 2: Normal
+- 3: Hard 
+
+### GAMEMODE
+- default: 0
+
+Defines the [mode of gameplay](http://minecraft.gamepedia.com/Gameplay#Game_modes).
+
+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
+- CHOWN
+- DAC_OVERRIDE
+- NET_BIND_SERVICE
+- SETGID
+- SETUID