apmc

A customized Alpine Linux Docker image to manage a Vanilla Minecraft server running on Spigot or PaperMC.

GitHub

For more information, and to view the Dockerfile and all scripts included in the image, check out the GitHub repo.

Docker Hub

Check out the Docker hub page.

Usage

To run this server, and manage the server files and properties, please specify a directory on the host to house the Minecraft server files. The following docker command will create a container that will automatically run/build the server when it is started.

NOTE: If the EULA flag is not added, then on the first run, the server will not fully initialize until the user agrees to the end user licence agreement. After running the commands below, the user needs to edit the eula.txt file found in the root server directory on the host machine. The value eula=false needs to be changed to eula=true. There is no need to restart the server, just save changes and the server will auto-restart.

Commands for Bash:

#!/bin/bash

dir="FULL-PATH-TO-STORE-SERVER-ON-HOST" 
mkdir -p $dir/Minecraft

sudo docker create --name=mc --tty -i \
	--restart=always \
	-v $dir/Minecraft:/home/Minecraft \
	-p 25565:25565 \
	-e EULA=true \
	projectinitiative/apmc

sudo docker start mc

Commands for PowerShell:

$dir="FULL-PATH-TO-STORE-SERVER-ON-HOST" 
mkdir -p $dir\Minecraft

docker create --name=mc --tty -i `
	--restart=always `
	-v $dir/Minecraft:/home/Minecraft `
	-p 25565:25565 `
	-e EULA=true `
	projectinitiative/apmc

docker start mc

Environmental Variables

Variable	Description	Value Type Example
TZ	Timezone	America/Chicago
minram	Minimum RAM to allocate to the server	1G/512M
maxram	Maximum RAM to allocate to the server	1G/512M
server_type	Specify which type of server to be downloaded/compiled	vanilla/spigot/paper
EULA	Automatically accepts the end user license agreement for the server	true
start_script	Path to custom start script (not named start.sh) Usually used for modded server packs with custom start scripts	PATH-TO-START-SCRIPT
backup_cron	A crontab pattern for the frequency of which backups are made	0 /12 * *

Aside: Useful crontab generator

NOTE: Environmental variables do not need to be specified to run the server. Default values will be used.

Example Usage

sudo docker create --name=mc ...
...
...
-p 25565:25565 \
-e TZ=America/Chicago \
-e minram=512M \
-e maxram=4G \
-e server_type=paper \
-e EULA=true \
...
...

Server Management

Interacting with the Minecraft console

To interact with the command console without being in-game, run the following while the container is running

docker exec -it mc screen -r mc

To exit the console safely use CTRL + A then CTRL + D

Built-in Server Commands

CMDs that are built in:

start-server
stop-server
restart-server
upgrade-server

To use the commands listed above, run the following while the container is running

docker exec -it mc CMD

NOTE: Pre-built Spigot server jar files can be downloaded from the Spigot website. Move the jar file into the root server directory on the host and rename it spigot-server.jar. The PaperMC variant can be downloaded from PaperMC. Move the jar file into the root server directory on the host and rename it paper-server.jar

Build from source

Bash

Creating the container:

create-mc-container.sh "FULL-PATH-TO-STORE-SERVER-ON-HOST"

Starting the container:

docker start mc

Stopping the container:

docker stop mc

Additionally, the server can be stopped, rebuilt, and started again.

rebuild-mc.sh "FULL-PATH-TO-STORE-SERVER-ON-HOST"

PowerShell