gitlab-ci-practice

Use Gitlab CI as CI/CD for GitHub repo

Warning

Unfortunately, "Using GitLab CI/CD with a GitHub repository"¹ is for PREMIUM only. So, this repo is not working now 😞

Install

cp .env.template .env

1. Setup .env with .env.template

docker compose up -d

2. Run

# in gitlab container
grep 'Password:' /etc/gitlab/initial_root_password
Password: CgmfBfGdcLfdgH9OmId9YXo4rNyDBcRbVvFdgfuk0V8=

3. Check root password

Init process takes time, wait for a while - about 10 min

gitlab-rake "gitlab:password:reset[root]"
# wait about 10 minutes... (why?)
Enter password:
Confirm password:
Password successfully updated for user with username root.

If not found, manually reset root password (don't know why). Note that password should be more than 8 characters. If not, you will be waiting 10 minutes again.

• https://stackoverflow.com/a/71546291/4295499

# in gitlab-runner container
gitlab-runner register \
  --url http://gitlab-runner:4080 \
  --token glrt-K5WfXsQN78GHPdTVN5nu

4. Add runner in gitlab admin page(http://localhost:4080/admin), and register gitlab runner

Runtime platform                                    arch=arm64 os=linux pid=33 revision=b72e108d version=16.1.0
Running in system-mode.
Enter the GitLab instance URL (for example, https://gitlab.com/):
[http://gitlab-web:4080]: 
Verifying runner... is valid                        runner=o-1sLCpq4
Enter a name for the runner. This is stored only in the local config.toml file:
[gitlab-runner-1]: 
Enter an executor: custom, docker, ssh, docker+machine, kubernetes, docker-windows, parallels, shell, virtualbox, docker-autoscaler, instance: docker
Enter the default Docker image (for example, ruby:2.7): alpine:latest
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"

Enter runner options and done :)

gitlab-runner run

(Optional) run (if not run with service)

ngrok http --domain={your_domain}.ngrok-free.app 4080

5. Run ngrok to receive webhook from GitHub

6. Configure allowed import sources²

7. Setup GitLab CI/CD for external repo¹

After that, on github repo, add ngrok domain as webhook url

8. Add .gitlab-ci.yml to your repo

Note: only yml is working (not yaml)

Reference

• https://docs.gitlab.com/ee/install/docker.html#install-gitlab-using-docker-compose

Footnotes

1. https://docs.gitlab.com/ee/ci/ci_cd_for_external_repos/github_integration.html ↩ ↩²

2. https://docs.gitlab.com/ee/user/admin_area/settings/visibility_and_access_controls.html#configure-allowed-import-sources ↩