gitlab-ce-ssh-test

• For https://forum.gitlab.com/t/does-the-gitlab-omnibus-config-environment-variable-of-gitlab-ces-dockerimage-allow-writing-json/109478 .

• Execute the following commands under Ubuntu WSL 22.04.4. Docker Engine 27.1.1 must be installed in advance.

Unknown tests

git clone [email protected]:linghengqian/gitlab-ce-ssh-test.git
cd ./gitlab-ce-ssh-test/
docker compose --file ./docker-compose-unknown.yml pull
docker compose --file ./docker-compose-unknown.yml up -d

• To remove the Docker Compose unit, execute the following command.

docker compose --file ./docker-compose-unknown.yml down --volumes

Successful unit testing

git clone [email protected]:linghengqian/gitlab-ce-ssh-test.git
cd ./gitlab-ce-ssh-test/
docker compose --file ./docker-compose-success.yml pull
docker compose --file ./docker-compose-success.yml up -d

• To remove the Docker Compose unit, execute the following command.

docker compose --file ./docker-compose-success.yml down --volumes

Additional Topics

• The contents of the configuration file are explained below.

• hostname and external_url will change the URL where GitLab can be accessed to 127.0.0.1:12345. ports exposes the container port of 12345:12345. See https://gitlab.com/gitlab-org/omnibus-gitlab/-/blob/17.3.0+ce.0/files/gitlab-config-template/gitlab.rb.template?ref_type=tags#L32 .

• gitlab_rails['time_zone'] and TZ change the time zone inside the container. See https://gitlab.com/gitlab-org/omnibus-gitlab/-/blob/17.3.0+ce.0/files/gitlab-config-template/gitlab.rb.template?ref_type=tags#L68 .

• gitlab_rails['gitlab_shell_ssh_port'] exposes the SSH service on port 22345. ports exposes the container port of 22345:22. See https://docs.gitlab.com/17.3/ee/install/docker/#install-gitlab-using-docker-compose and https://gitlab.com/gitlab-org/omnibus-gitlab/-/blob/17.3.0+ce.0/files/gitlab-config-template/gitlab.rb.template?ref_type=tags#L698 .

# Here is a simple test.

# ... Generate SSH key

cat ~/.ssh/id_ed25519.pub

# ... Upload the SSH public key to http://localhost:12345/-/user_settings/ssh_keys .

ssh -T ssh://[email protected]:22345

# .. After uploading the project, try to clone it.
cd /tmp/
git clone ssh://[email protected]:22345/linghengqian/gitlab-ce-ssh-test.git

• gitlab_rails['initial_root_password'] changes the password of the root user. See https://docs.gitlab.com/17.3/ee/install/docker/#install-gitlab-using-docker-swarm-mode and https://gitlab.com/gitlab-org/omnibus-gitlab/-/blob/17.3.0+ce.0/files/gitlab-config-template/gitlab.rb.template?ref_type=tags#L733 .

• registry_external_url configures container registry under an existing GitLab domain. We can log in via docker login 127.0.0.1:32345. ports exposes the container port of 32345:32345. See https://docs.gitlab.com/17.3/ee/administration/packages/container_registry.html#configure-container-registry-under-an-existing-gitlab-domain .

# Here is a simple test.

docker pull apache/hive:4.0.0
docker tag apache/hive:4.0.0 127.0.0.1:32345/linghengqian/gitlab-ce-ssh-test/apache-hive:4.0.0
docker login 127.0.0.1:32345
docker push 127.0.0.1:32345/linghengqian/gitlab-ce-ssh-test/apache-hive:4.0.0
docker image rm 127.0.0.1:32345/linghengqian/gitlab-ce-ssh-test/apache-hive:4.0.0
docker pull 127.0.0.1:32345/linghengqian/gitlab-ce-ssh-test/apache-hive:4.0.0

• The following configuration is from https://docs.gitlab.com/17.3/omnibus/settings/memory_constrained_envs.html#configuration-with-all-the-changes to run in a memory constrained environment.

puma['worker_processes'] = 0
sidekiq['concurrency'] = 10
prometheus_monitoring['enable'] = false

Additional Topics about Runner

• docker-compose-runner.yml tests against Gitlab Runner.

docker compose --file ./docker-compose-runner.yml pull
docker compose --file ./docker-compose-runner.yml up -d
docker compose --file ./docker-compose-runner.yml exec gitlab-runner-first /bin/bash

gitlab-runner register \
  --non-interactive \
  --url http://gitlab-ce:12345 \
  --token <Aloha, your Token> \
  --executor docker \
  --docker-image alpine:latest \
  --description "docker-runner" \
  --docker-volumes /var/run/docker.sock:/var/run/docker.sock \
  --clone-url http://gitlab-ce:12345 \
  --docker-network-mode gitlab-ce-ssh-test_default
  
cat /etc/gitlab-runner/config.toml

exit

docker compose --file ./docker-compose-runner.yml down --volumes