| `SEMREL_IMAGE` | The Docker image used to run semantic-release | `node:lts` |
| :lock: `GITLAB_TOKEN` | A GitLab [project access token](https://docs.gitlab.com/ee/user/project/settings/project_access_tokens.html) or [personal access token](https://docs.gitlab.com/ce/user/profile/personal_access_tokens.html) with `api`, `read_repository` and `write repository` scopes. :warning: This variable is **mandatory** and [defined by `semantic-release`](https://github.com/semantic-release/semantic-release/blob/master/docs/usage/ci-configuration.md#push-access-to-the-remote-repository) itself. | _none_ |
| `GIT_AUTHOR_EMAIL` | A Git author email address associated with the `GITLAB_TOKEN`[bot user](https://docs.gitlab.com/ee/user/project/settings/project_access_tokens.html#bot-users-for-projects). This is [defined by `semantic-release`](https://semantic-release.gitbook.io/semantic-release/usage/configuration#git-environment-variables) itself, and **required if** the [verify-user push rules](https://docs.gitlab.com/ee/user/project/repository/push_rules.html#verify-users) enabled for the project | _none_ |
| `GIT_COMMITTER_EMAIL` | A Git committer email address associated with the `GITLAB_TOKEN`[bot user](https://docs.gitlab.com/ee/user/project/settings/project_access_tokens.html#bot-users-for-projects). This is [defined by `semantic-release`](https://semantic-release.gitbook.io/semantic-release/usage/configuration#git-environment-variables) itself, and **required if** the [verify-user push rules](https://docs.gitlab.com/ee/user/project/repository/push_rules.html#verify-users) enabled for the project | _none_ |
