docker in docker 的CI/CD 注册runner

docker exec -it gitlab-runner gitlab-runner register \
   --non-interactive \
   --url "my gitlab url" \
   --registration-token "my token" \
   --description "gitlab-ce-ruby-2.6" \
   --executor "docker" \
   --docker-image alpine:latest \
   --docker-image docker

编辑配置文件, 配置两个参数  privileged 和 volumes 

vim /srv/gitlab-runner/config/config.toml 

privileged = true
volumes = ["/usr/lib64/libltdl.so.7:/usr/lib/x86_64-linux-gnu/libltdl.so.7:rw", "/usr/bin/docker:/usr/bin/docker", "/var/run/docker.sock:/var/run/docker.sock"]

配合完  稍等一下 runner就会与gitlab链接起来

https://docs.gitlab.com/runner/executors/docker.html#use-docker-in-docker-with-privileged-mode