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Core Keeper Dedicated Server

corekeeper

Explore an endless cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core. Get Core Keeper at the Steam Store

Docker Image CI

Supported tags and respective Dockerfile links

How to run

Volumes

Create two directories where you want to run your server :

  • server-data: mandatory if you want to keep configuration between each restart
  • server-files: optional, contains all the files of the application

Using Docker CLI:

docker run -d -e WORLD_NAME="Core Keeper Server" -e MAX_PLAYERS=5 -v $(pwd)/server-data:/home/steam/core-keeper-data --name core-keeper-dedicated escaping/core-keeper-dedicated

Using Docker Compose

Create a docker-compose.yml with the following content:

version: "3"

services:
  core-keeper:
    image: escaping/core-keeper-dedicated
    volumes:
      - server-files:/home/steam/core-keeper-dedicated
      - server-data:/home/steam/core-keeper-data
    env_file:
      - ./core.env
    restart: always
    stop_grace_period: 2m
volumes:
    server-files:
    server-data:

Create a core.env file, it should contain the environment variables for the dedicated server, see configuration for reference. Example:

WORLD_INDEX=0
WORLD_NAME=Core Keeper Server
WORLD_SEED=0
WORLD_MODE=0
GAME_ID=
DATA_PATH=/home/steam/core-keeper-data
MAX_PLAYERS=10
DISCORD=1
DISCORD_HOOK=https://discord.com/api/webhooks/{id}/{token}
SEASON=-1
SERVER_IP=
SERVER_PORT=

On the folder which contains the files run docker-compose up -d.

A GameID.txt file will be created next to the executable containing the Game ID. If it doesn't appear you can check the log in the same location named core-keeper-dedicated/CoreKeeperServerLog.txt for errors.

To query the game ID run: docker exec -it core-keeper-dedicated cat core-keeper-dedicated/GameID.txt

Configuration

These are the arguments you can use to customize server behavior with default values.

WORLD_INDEX         Which world index to use.
WORLD_NAME          The name to use for the server.
WORLD_SEED          The seed to use for a new world. Set to 0 to generate random seed.
WORLD_MODE          Sets the world mode for the world. Can be Normal (0), Hard (1), Creative (2), Casual (4). NOTE: Changing between Creative and non-Creative worlds not currently supported.
GAME_ID             Game ID to use for the server. Need to be at least 28 characters and alphanumeric, excluding Y,y,x,0,O. Empty or not valid means a new ID will be generated at start.
DATA_PATH           Save file location. If not set it defaults to a sub-folder named "DedicatedServer" at the default Core Keeper save location.
MAX_PLAYERS         Maximum number of players that will be allowed to connect to server.
DISCORD             Enables discord webhook features which sends GameID to a channel.
DISCORD_HOOK        Webhook url (Edit channel > Integrations > Create Webhook).
DISCORD_PRINTF_STR  The format string used to generate the content of the Discord webook. Default is `%s`, simply sending the GameID. 
SEASON              Overrides current season by setting to any of None (0), Easter (1), Halloween (2), Christmas (3), Valentine (4), Anniversary (5), CherryBlossom (6), LunarNewYear(7). -1 is default setting where it is set depending on system date.
SERVER_IP           Only used if port is set. Sets the address that the server will bind to.
SERVER_PORT         What port to bind to. If not set, then the server will use the Steam relay network. If set the clients will connect to the server directly and the port needs to be open.

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Dockerfile for automated build of a Core Keeper Dedicated Server

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