概念

1. GitLab Runner 介绍

GitLab Runner是一个开源项目，用于运行您的作业并将结果发送回GitLab。它与GitLab CI一起使用，GitLab CI是GitLab随附的开源持续集成服务，用于协调作业。
GitLab Runner是用Go编写，可以作为单个二进制文件运行，不需要语言特定的要求。

2. GitLab Runner的三种类型

shared：运行整个平台项目的作业(gitlab)
group：运行特定group下的所有项目的作业(group)
specific：运行指定的项目作业(project)

3. GitLab Runner两种状态

locked：无法运行项目作业
paused：不会运行作业

安装

参考官方文档：在容器中运行 GitLab Runner
docker自动化安装脚本及过程可参照：gitlab-ci自动构建java项目自行整理

1. 安装docker

2. 使用本地系统卷挂载启动 Runner 容器

此示例将本地系统用于装载到容器中的配置卷。此卷用于配置和其他资源。gitlab-runner

docker run -d --name gitlab-runner --restart always \
  -v /srv/gitlab-runner/config:/etc/gitlab-runner \
  -v /var/run/docker.sock:/var/run/docker.sock \
  gitlab/gitlab-runner:latest

/srv/gitlab-runner/config 挂载路径用于存储config.toml文件
Config.toml 文件格式及参数文档

Advanced configuration | GitLab
转载：GitLab-Runner配置参数详解

3. 进入runner 容器进行注册

docker exec -it gitlab-runner bash

root@bb3197ce0e5c:/# gitlab-runner register
Runtime platform                                    arch=amd64 os=linux pid=58 revision=f5da3c5a version=16.6.1
Running in system-mode.                            
                                                   
Enter the GitLab instance URL (for example, https://gitlab.com/):
http://192.168.31.103:8888      // 输入gitlab私仓地址
Enter the registration token:
GR1348941xm-z_sSMDN_zVjW-8fH8     // registration  token可在Settings -> CI/CD Settings -> Runners -> Expand -> Project runners -> new project runner 旁边三个点，单击可查看和拷贝
Enter a description for the runner:
[bb3197ce0e5c]: CICD runner  // runner 描述
Enter tags for the runner (comma-separated):
build-cicd   // runner tag 记住这个后续要用
Enter optional maintenance note for the runner:
shell   // 填shell就可以
Registering runner... succeeded                     runner=GR1348941xm-z_sSM
Enter an executor: parallels, virtualbox, docker-autoscaler, instance, kubernetes, docker, docker-windows, shell, ssh, docker+machine, custom:
docker   // 此处选docker
Enter the default Docker image (for example, ruby:2.7):
docker:24.0.7   // 查看当前docker版本
Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!
 
Configuration (with the authentication token) was saved in "/etc/gitlab-runner/config.toml"