# GitLab CI

Below are some example GitLab CI jobs that use GoReleaser to release a project.

> If you are using private hosted or Enterprise version of GitLab, please follow this [guide](/scm/gitlab/) before diving into the details.

## Basic Releasing

You can easily run GoReleaser in GitLab CI using its Docker container.

In the repository's GitLab CI settings, add a `GITLAB_TOKEN` variable. The value should
be an API token with `api` scope for a user that has access to the project. This
variable should be masked and optionally protected if the job will only run on
protected branches and tags.

!!! warning
    If you use a project access token, make sure to set `use_package_registry`
    to `true` as well, otherwise it might not work.

!!! warning
    If you are using a [protected variable](https://docs.gitlab.com/ee/ci/variables/#protected-cicd-variables)
    to store any of the values needed by goreleaser, ensure that you are protecting the tags as CI jobs in
    Gitlab only may access protected variables if the job is run for protected refs
    ([branches](https://docs.gitlab.com/ee/user/project/protected_branches.html),
    [tags](https://docs.gitlab.com/ee/user/project/protected_tags.html)).

See [Quick Start](https://goreleaser.com/quick-start/) for more information on
GoReleaser's environment variables.

Add a `.gitlab-ci.yml` file to the root of the project:

```yaml
stages:
  - release

release:
  stage: release
  image:
    name: goreleaser/goreleaser
    entrypoint: ['']
  only:
    - tags
  variables:
    # Disable shallow cloning so that goreleaser can diff between tags to
    # generate a changelog.
    GIT_DEPTH: 0
  script:
    - goreleaser release --rm-dist
```

Notice that `entrypoint` is intentionally blank. See the
[GitLab documentation on entrypoints](https://docs.gitlab.com/ee/ci/docker/using_docker_images.html#overriding-the-entrypoint-of-an-image)
for more information.

When tags are pushed to the repository,
an available GitLab Runner with the Docker executor will pick up the release job.
`goreleaser/goreleaser` will start in a container, and the repository will be mounted inside.
Finally, the `script` section will run within the container starting in your project's directory.

## Releasing Archives and Pushing Images

Pushing images to a registry requires using Docker-in-Docker. To create GitLab releases and push
images to a Docker registry, add a file `.gitlab-ci.yml` to the root of the project:

```yaml
stages:
  - release

release:
  stage: release
  image: docker:stable
  services:
    - docker:dind

  variables:
    # Optionally use GitLab's built-in image registry.
    # DOCKER_REGISTRY: $CI_REGISTRY
    # DOCKER_USERNAME: $CI_REGISTRY_USER
    # DOCKER_PASSWORD: $CI_REGISTRY_PASSWORD

    # Or, use any registry, including the official one.
    DOCKER_REGISTRY: https://index.docker.io/v1/

    # Disable shallow cloning so that goreleaser can diff between tags to
    # generate a changelog.
    GIT_DEPTH: 0

  # Only run this release job for tags, not every commit (for example).
  only:
    refs:
      - tags

  script: |
    # GITLAB_TOKEN is needed to create GitLab releases.
    # DOCKER_* are needed to push Docker images.
    docker run --rm --privileged \
      -v $PWD:/go/src/gitlab.com/YourGitLabUser/YourGitLabRepo \
      -w /go/src/gitlab.com/YourGitLabUser/YourGitLabRepo \
      -v /var/run/docker.sock:/var/run/docker.sock \
      -e DOCKER_USERNAME -e DOCKER_PASSWORD -e DOCKER_REGISTRY  \
      -e GITLAB_TOKEN \
      goreleaser/goreleaser release --rm-dist
```

In GitLab CI settings, add variables for `DOCKER_REGISTRY`, `DOCKER_USERNAME`,
and `DOCKER_PASSWORD` if you aren't using the GitLab image registry. If you are
using the GitLab image registry, you don't need to set these.

Add a variable `GITLAB_TOKEN` if you are using [GitLab
releases](https://docs.gitlab.com/ce/user/project/releases/). The value should
be an API token with `api` scope for a user that has access to the project.

Alternatively, you can provide the gitlab token in a file. GoReleaser will check
`~/.config/goreleaser/gitlab_token` by default, but you can change that in the
`.goreleaser.yaml` file:

```yaml
# .goreleaser.yaml
env_files:
  gitlab_token: ~/.path/to/my/gitlab_token
```

Note that the environment variable will be used if available, regardless of the
`gitlab_token` file.

The secret variables, `DOCKER_PASSWORD` and `GITLAB_TOKEN`, should be masked.
Optionally, you might want to protect them if the job that uses them will only
be run on protected branches or tags.

Make sure the `image_templates` in the file `.goreleaser.yaml` reflect that
custom registry!

Example:

```yaml
dockers:
-
  goos: linux
  goarch: amd64
  image_templates:
  - 'registry.gitlab.com/Group/Project:{{ .Tag }}'
  - 'registry.gitlab.com/Group/Project:latest'
```

## Example Repository

You can check [this example repository](https://gitlab.com/goreleaser/example) for a real world example.

<a href="https://gitlab.com/goreleaser/example/-/releases">
  <figure>
    <img src="https://img.carlosbecker.dev/goreleaser-gitlab.png"/>
    <figcaption>Example release on GitLab.</figcaption>
  </figure>
</a>
