使用 docker 容器运行 gitlab-runner

使用 docker 容器运行 gitlab-runner

1. 拉取镜像

docker pull gitlab/gitlab-runner

2. 注册 runner

GitLab runner 如果没有指定相应的参数的话、那就是可以在一台机器上注册多个 runner、如果你有多台服务器、那么你就可以在性能比较好的机器上多注册几个 runner、提高 GitLab 在进行任务分配的时候高性能服务器分配到任务的概率。

2.1 手动注册

docker run --rm  -t  -i  -v /srv/gitlab-runner/config:/etc/gitlab-runner gitlab/gitlab-runner register

# 然后根据提示输入相应的信息

2.2 运行时注册

通过运行下面的命令、gitlab-runner 会在宿主机相应的挂载目录写入 runner 的注册信息、可以在 /srv/gitlab-runner/config 文件夹下面看到相应的信息、下面的命令每运行一次会注册一个 runner 可以在 GitLab 的 admin 面板看到，但是你会看到 runner 的最后联系时间为 never，这也就代表着现在的这些共享 runner 还不能立刻使用、现在只是将相应的信息注册到 GitLab 上而已。

docker run -v /srv/gitlab-runner/config:/etc/gitlab-runner --rm --name=gitlab-runner gitlab/gitlab-runner register \
--non-interactive --executor "docker"   \
--docker-image alpine:latest  \			# 
--url "http://git.shuangzu.top/"  \		# gitlab runners 管理界面看到的注册 链接
--registration-token "g************"  \	#  gitlab runners 管理界面看到的注册 token
--description "docker-runner"  \
--tag-list "docker,106"  \
--run-untagged="true"   \
--locked="false"  \
--access-level="not_protected"

4. 启动 GitLab runner 工作容器

下面的这条命令是启动一个 GitLab runner 的正常工作容器、配置文件使用我们原来通过容器注册后留下来的配置文件（-v /srv/gitlab-runner/config:/etc/gitlab-runne），挂载 docker 的 sock 文件、保证容器能够与宿主机的 docker 守护进程进行通信、然后创建 CI/CD 运行时需要的容器（-v /var/run/docker.sock:/var/run/docker.sock ）；如果不加这一条、在进行 CI/CD 构建的时候会遇到无法与 docker 进程通信的报错。

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

5. 验证 runner 是否正常工作

docker exec -it gitlab-runner /bin/bash

root@4f6791a5e7bd:/# gitlab-runner 
Runtime platform                                    arch=amd64 os=linux pid=88 revision=ac8e767a version=12.6.0
NAME:
   gitlab-runner - a GitLab Runner

USAGE:
   gitlab-runner [global options] command [command options] [arguments...]

VERSION:
   12.6.0 (ac8e767a)

AUTHOR:
   GitLab Inc. <support@gitlab.com>

COMMANDS:
     exec                  execute a build locally
     list                  List all configured runners
     run                   run multi runner service
     register              register a new runner
     install               install service
     uninstall             uninstall service
     start                 start service
     stop                  stop service
     restart               restart service
     status                get status of a service
     run-single            start single runner
     unregister            unregister specific runner
     verify                verify all registered runners
     artifacts-downloader  download and extract build artifacts (internal)
     artifacts-uploader    create and upload build artifacts (internal)
     cache-archiver        create and upload cache artifacts (internal)
     cache-extractor       download and extract cache artifacts (internal)
     cache-init            changed permissions for cache paths (internal)
     health-check          check health for a specific address
     help, h               Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --cpuprofile value           write cpu profile to file [$CPU_PROFILE]
   --debug                      debug mode [$DEBUG]
   --log-format value           Choose log format (options: runner, text, json) [$LOG_FORMAT]
   --log-level value, -l value  Log level (options: debug, info, warn, error, fatal, panic) [$LOG_LEVEL]
   --help, -h                   show help
   --version, -v                print the version

############################
root@4f6791a5e7bd:/# gitlab-runner verify 
Runtime platform                                    arch=amd64 os=linux pid=100 revision=ac8e767a version=12.6.0
Running in system-mode.                            
                                                   # 可以看到runner工作正常、也可以触发一下CI/CD进行测试。
Verifying runner... is alive                        runner=TZi33hJ6
Verifying runner... is alive                        runner=oMzfmS1J
Verifying runner... is alive                        runner=3nnLNXsQ
Verifying runner... is alive                        runner=eyudsagy