| **CI_PIPELINE_SOURCE** | 10.0 | all | Indicates how the pipeline was triggered. Possible options are: `push`, `web`, `trigger`, `schedule`, `api`, and `pipeline`. For pipelines created before GitLab 9.5, this will show as `unknown` |
| **CI_PIPELINE_TRIGGERED** | all | all | The flag to indicate that job was [triggered] |
| **CI_PROJECT_DIR** | all | all | The full path where the repository is cloned and where the job is run |
| **CI_PROJECT_DIR** | all | all | The full path where the repository is cloned and where the job is run. If the GitLab Runner `builds_dir` parameter is set, this variable is set relative to the value of `builds_dir`. For more information, see [Advanced configuration](https://docs.gitlab.com/runner/configuration/advanced-configuration.html#the-runners-section) for GitLab Runner. |
| **CI_PROJECT_ID** | all | all | The unique id of the current project that GitLab CI uses internally |
| **CI_PROJECT_NAME** | 8.10 | 0.5 | The project name that is currently being built (actually it is project folder name) |
| **CI_PROJECT_NAMESPACE** | 8.10 | 0.5 | The project namespace (username or groupname) that is currently being built |