Spigot-Builder

Containerized builder for SpigotMC.

Summary

This is a container which, during runtime, downloads the BuildTools.jar file to the latest version and builds the specified version of spigot. Due to the different requirements of the JRE for specific version the appropriate image needs to be set.

Required version for a specific SpigotMC version

Here's a table with the required version of the images for a specific SpigotMC version.

Spigot version	Image version
<1.17	openjdk-8-alpine
=1.17.1	openjdk-16-alpine
>1.17.1	openjdk-17-alpine

Usage

For multiple builds at the same time, ideally a docker-compose.yml file would be used. The two important directories are /release into which the final .jar file is copied to and the /build directory which builds the server. /build can be used in a volume to reduce the build time after the initial build, but in case that the build corrups the volume needs to be dropped otherwise it won't build.

docker-compose.yml

An example of the docker-compose.yml file would be:

version: '3'

volumes:
  build_1_20:
  build_1_17_1:
  build_1_11_1:

services:
  '1.20':
    image: zastrix/spigot-builder:openjdk-17-alpine
    environment:
      VERSION: '1.20'
    volumes:
      - build_1_20:/build:Z
      - ./release:/release:z
    restart: on-failure
  '1.17.1':
    image: zastrix/spigot-builder:openjdk-16-alpine
    environment:
      VERSION: '1.17.1'
    volumes:
      - build_1_17_1:/build:Z
      - ./release:/release:z
    restart: on-failure
  '1.11.1':
    image: zastrix/spigot-builder:openjdk-8-alpine
    environment:
      VERSION: '1.11.1'
    volumes:
      - build_1_11_1:/build:Z
      - ./release:/release:z
    restart: on-failure

With the result of:

$ tree .
.
├── build.sh
├── docker-compose-example.yml
├── docker-compose.yml
├── Dockerfile16
├── Dockerfile17
├── Dockerfile8
├── README.md
└── release
    ├── spigot-1.11.2.jar
    ├── spigot-1.17.1.jar
    └── spigot-1.20.1.jar

2 directories, 10 files

Note: The 1.11.2 is actually effectively 1.11.1.

CLI

To build spigot 1.17.1 with a single command and no cache you would need to run:

docker run -v ./release:/release:z -e VERSION='1.17.1' --name spigot-builder-1.11.1 zastrix/spigot-builder:openjdk-16-alpine

And in the release folder the file should exist: ./release/spigot-1.17.1.jar.