Gitlab runner

Install

docker-compose.yml

services:
  runner:
    image: gitlab/gitlab-runner:v14.7.0
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - gitlab-runner-config:/etc/gitlab-runner
    restart: always

volumes:
  gitlab-runner-config: ~

Register runner

$ docker exec -it $(docker ps | grep 'gitlab/gitlab-runner' | awk '{print $1}') gitlab-runner register
Enter the GitLab instance URL (for example, https://gitlab.com/):
https://git.mydomain.com/
Enter the registration token:
xxxxxxxxxxxxxxxx
Enter a description for the runner:
[xxxx]: xxxxxx
Enter tags for the runner (comma-separated):
docker,linux
Registering runner... succeeded                     runner=xxxx
Enter an executor: custom, docker+machine, docker-ssh+machine, kubernetes, virtualbox, docker, docker-ssh, parallels, shell, ssh:
docker
Enter the default Docker image (for example, ruby:2.6):
busybox
Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded! 

Fix config

vim /var/lib/docker/volumes/git_gitlab-runner-config/_data/config.toml

concurrent = 1
check_interval = 0

[session_server]
  session_timeout = 1800

[[runners]]
  name = "xxxxxx"
  url = "https://git.mydomain.com/"
  token = "xxxxxxxxxxxxxxxx"
  executor = "docker"
  [runners.custom_build_dir]
  [runners.cache]
    [runners.cache.s3]
    [runners.cache.gcs]
    [runners.cache.azure]
  [runners.docker]
    tls_verify = false
    image = "docker:latest"
    privileged = true
    disable_entrypoint_overwrite = false
    oom_kill_disable = false
    disable_cache = false
    volumes = ["/var/run/docker.sock:/var/run/docker.sock", "/cache"]
    shm_size = 0

Verify:

• privileged
• volumes

Restart runner

docker restart $(docker ps | grep 'gitlab/gitlab-runner' | awk '{print $1}')