---
stage: Verify
group: Continuous Integration
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
type: reference
---

# Predefined environment variables reference

For an introduction on this subject, read through the
[getting started with environment variables](README.md) document.

Some of the predefined environment variables are available only if a minimum
version of [GitLab Runner](https://docs.gitlab.com/runner/) is used. Consult the table below to find the
version of GitLab Runner that's required.

NOTE:
Starting with GitLab 9.0, we have deprecated some variables. Read the
[9.0 Renaming](deprecated_variables.md#gitlab-90-renamed-variables) section to find out their replacements.
**To avoid problems with deprecated and removed variables in future releases, you are strongly advised to use the new variables.**

You can add a command to your `.gitlab-ci.yml` file to
[output the values of all variables available for a job](README.md#list-all-environment-variables).

Kubernetes-specific environment variables are detailed in the
[Kubernetes deployment variables](../../user/project/clusters/index.md#deployment-variables) section.

| Variable                                      | GitLab | Runner | Description                                                                                                                                                                                                                                                                                                                                                |
|-----------------------------------------------|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `CHAT_CHANNEL`                                | 10.6   | all    | Source chat channel which triggered the [ChatOps](../chatops/README.md) command                                                                                                                                                                                                                                                                            |
| `CHAT_INPUT`                                  | 10.6   | all    | Additional arguments passed in the [ChatOps](../chatops/README.md) command                                                                                                                                                                                                                                                                                 |
| `CI`                                          | all    | 0.4    | Mark that job is executed in CI environment                                                                                                                                                                                                                                                                                                                |
| `CI_API_V4_URL`                               | 11.7   | all    | The GitLab API v4 root URL                                                                                                                                                                                                                                                                                                                                 |
| `CI_BUILDS_DIR`                               | all    | 11.10  | Top-level directory where builds are executed.                                                                                                                                                                                                                                                                                                             |
| `CI_COMMIT_BEFORE_SHA`                        | 11.2   | all    | The previous latest commit present on a branch. Is always `0000000000000000000000000000000000000000` in pipelines for merge requests.                                                                                                                                                                                                           |
| `CI_COMMIT_DESCRIPTION`                       | 10.8   | all    | The description of the commit: the message without first line, if the title is shorter than 100 characters; full message in other case.                                                                                                                                                                                                                    |
| `CI_COMMIT_MESSAGE`                           | 10.8   | all    | The full commit message.                                                                                                                                                                                                                                                                                                                                   |
| `CI_COMMIT_REF_NAME`                          | 9.0    | all    | The branch or tag name for which project is built                                                                                                                                                                                                                                                                                                          |
| `CI_COMMIT_REF_PROTECTED`                     | 11.11  | all    | `true` if the job is running on a protected reference, `false` if not                                                                                                                                                                                                                                                                                                               |
| `CI_COMMIT_REF_SLUG`                          | 9.0    | all    | `$CI_COMMIT_REF_NAME` lowercased, shortened to 63 bytes, and with everything except `0-9` and `a-z` replaced with `-`. No leading / trailing `-`. Use in URLs, host names and domain names.                                                                                                                                                                |
| `CI_COMMIT_SHA`                               | 9.0    | all    | The commit revision for which project is built                                                                                                                                                                                                                                                                                                             |
| `CI_COMMIT_SHORT_SHA`                         | 11.7   | all    | The first eight characters of `CI_COMMIT_SHA`                                                                                                                                                                                                                                                                                                              |
| `CI_COMMIT_BRANCH`                            | 12.6   | 0.5    | The commit branch name. Present in branch pipelines, including pipelines for the default branch. Not present in merge request pipelines or tag pipelines.                                                                                                                                                                                                                                                                                                      |
| `CI_COMMIT_TAG`                               | 9.0    | 0.5    | The commit tag name. Present only when building tags.                                                                                                                                                                                                                                                                                                      |
| `CI_COMMIT_TITLE`                             | 10.8   | all    | The title of the commit - the full first line of the message                                                                                                                                                                                                                                                                                               |
| `CI_COMMIT_TIMESTAMP`                         | 13.4   | all    | The timestamp of the commit in the ISO 8601 format.                                                                                                                                                                                                                                                                                               |
| `CI_CONCURRENT_ID`                            | all    | 11.10  | Unique ID of build execution within a single executor.                                                                                                                                                                                                                                                                                                     |
| `CI_CONCURRENT_PROJECT_ID`                    | all    | 11.10  | Unique ID of build execution within a single executor and project.                                                                                                                                                                                                                                                                                         |
| `CI_CONFIG_PATH`                              | 9.4    | 0.5    | The path to CI configuration file. Defaults to `.gitlab-ci.yml`                                                                                                                                                                                                                                                                                                   |
| `CI_DEBUG_TRACE`                              | all    | 1.7    | Whether [debug logging (tracing)](README.md#debug-logging) is enabled                                                                                                                                                                                                                                                                                      |
| `CI_DEFAULT_BRANCH`                           | 12.4   | all    | The name of the default branch for the project.                                                                                                                                                                                                                                                                                                            |
| `CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX`               | 13.7    | all    | The image prefix for pulling images through the Dependency Proxy. |
| `CI_DEPENDENCY_PROXY_SERVER`                           | 13.7    | all    | The server for logging in to the Dependency Proxy. This is equivelant to `$CI_SERVER_HOST:$CI_SERVER_PORT`. |
| `CI_DEPENDENCY_PROXY_PASSWORD`                         | 13.7    | all    | The password to use to pull images through the Dependency Proxy. |
| `CI_DEPENDENCY_PROXY_USER`                             | 13.7    | all    | The username to use to pull images through the Dependency Proxy. |
| `CI_DEPLOY_FREEZE`                            | 13.2   | all    | Included with the value `true` if the pipeline runs during a [deploy freeze window](../../user/project/releases/index.md#prevent-unintentional-releases-by-setting-a-deploy-freeze).                                                                                                                                                                                                                                    |
| `CI_DEPLOY_PASSWORD`                          | 10.8   | all    | Authentication password of the [GitLab Deploy Token](../../user/project/deploy_tokens/index.md#gitlab-deploy-token), only present if the Project has one related.                                                                                                                                                                                                                                    |
| `CI_DEPLOY_USER`                              | 10.8   | all    | Authentication username of the [GitLab Deploy Token](../../user/project/deploy_tokens/index.md#gitlab-deploy-token), only present if the Project has one related.                                                                                                                                                                                                                                    |
| `CI_DISPOSABLE_ENVIRONMENT`                   | all    | 10.1   | Marks that the job is executed in a disposable environment (something that is created only for this job and disposed of/destroyed after the execution - all executors except `shell` and `ssh`). If the environment is disposable, it is set to true, otherwise it is not defined at all.                                                                  |
| `CI_ENVIRONMENT_NAME`                         | 8.15   | all    | The name of the environment for this job. Only present if [`environment:name`](../yaml/README.md#environmentname) is set.                                                                                                                                                                                                                                  |
| `CI_ENVIRONMENT_SLUG`                         | 8.15   | all    | A simplified version of the environment name, suitable for inclusion in DNS, URLs, Kubernetes labels, etc. Only present if [`environment:name`](../yaml/README.md#environmentname) is set.                                                                                                                                                                 |
| `CI_ENVIRONMENT_URL`                          | 9.3    | all    | The URL of the environment for this job. Only present if [`environment:url`](../yaml/README.md#environmenturl) is set.                                                                                                                                                                                                                                     |
| `CI_EXTERNAL_PULL_REQUEST_IID`                | 12.3   | all    | Pull Request ID from GitHub if the [pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                                                         |
| `CI_EXTERNAL_PULL_REQUEST_SOURCE_REPOSITORY`  | 13.3   | all    | The source repository name of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                                          |
| `CI_EXTERNAL_PULL_REQUEST_TARGET_REPOSITORY`  | 13.3   | all    | The target repository name of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                                          |
| `CI_EXTERNAL_PULL_REQUEST_SOURCE_BRANCH_NAME` | 12.3   | all    | The source branch name of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                                          |
| `CI_EXTERNAL_PULL_REQUEST_SOURCE_BRANCH_SHA`  | 12.3   | all    | The HEAD SHA of the source branch of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                               |
| `CI_EXTERNAL_PULL_REQUEST_TARGET_BRANCH_NAME` | 12.3   | all    | The target branch name of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                                          |
| `CI_EXTERNAL_PULL_REQUEST_TARGET_BRANCH_SHA`  | 12.3   | all    | The HEAD SHA of the target branch of the pull request if [the pipelines are for external pull requests](../ci_cd_for_external_repos/index.md#pipelines-for-external-pull-requests). Available only if `only: [external_pull_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the pull request is open.                                                                               |
| `CI_HAS_OPEN_REQUIREMENTS`                    | 13.1   | all    | Included with the value `true` only if the pipeline's project has any open [requirements](../../user/project/requirements/index.md). Not included if there are no open requirements for the pipeline's project.                                                                                                                                                                                        |
| `CI_OPEN_MERGE_REQUESTS`                    | 13.7   | all    | Contains a comma-delimited list of up to 4 Merge Requests from the current source project and branch in the form `gitlab-org/gitlab!333,gitlab-org/gitlab-foss!11`                                                                                                                                                                                 |
| `CI_JOB_ID`                                   | 9.0    | all    | The unique ID of the current job that GitLab CI/CD uses internally                                                                                                                                                                                                                                                                                            |
| `CI_JOB_IMAGE`                                | 12.9   | 12.9   | The name of the image running the CI job                                                                                                                                                                                                                                                                                                                   |
| `CI_JOB_MANUAL`                               | 8.12   | all    | The flag to indicate that job was manually started                                                                                                                                                                                                                                                                                                         |
| `CI_JOB_NAME`                                 | 9.0    | 0.5    | The name of the job as defined in `.gitlab-ci.yml`                                                                                                                                                                                                                                                                                                         |
| `CI_JOB_STAGE`                                | 9.0    | 0.5    | The name of the stage as defined in `.gitlab-ci.yml`                                                                                                                                                                                                                                                                                                       |
| `CI_JOB_STATUS`                               | all    | 13.5   | The state of the job as each runner stage is executed. Use with [`after_script`](../yaml/README.md#after_script) where `CI_JOB_STATUS` can be either: `success`, `failed` or `canceled`.                                                                                                                                                                              |
| `CI_JOB_TOKEN`                                | 9.0    | 1.2    | Token used for authenticating with [a few API endpoints](../../api/README.md#gitlab-ci-job-token) and downloading [dependent repositories](../../user/project/new_ci_build_permissions_model.md#dependent-repositories). The token is valid as long as the job is running. |
| `CI_JOB_JWT`                                  | 12.10  | all    | RS256 JSON web token that can be used for authenticating with third party systems that support JWT authentication, for example [HashiCorp's Vault](../secrets/index.md). |
| `CI_JOB_URL`                                  | 11.1   | 0.5    | Job details URL                                                                                                                                                                                                                                                                                                                                            |
| `CI_KUBERNETES_ACTIVE`                        | 13.0   | all    | Included with the value `true` only if the pipeline has a Kubernetes cluster available for deployments. Not included if no cluster is available. Can be used as an alternative to [`only:kubernetes`/`except:kubernetes`](../yaml/README.md#onlykubernetesexceptkubernetes) with [`rules:if`](../yaml/README.md#rulesif)                                    |
| `CI_MERGE_REQUEST_ASSIGNEES`                  | 11.9   | all    | Comma-separated list of username(s) of assignee(s) for the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                              |
| `CI_MERGE_REQUEST_ID`                         | 11.6   | all    | The instance-level ID of the merge request. Only available if [the pipelines are for merge requests](../merge_request_pipelines/index.md) and the merge request is created. This is a unique ID across all projects on GitLab.                                                                                                                                                         |
| `CI_MERGE_REQUEST_IID`                        | 11.6   | all    | The project-level IID (internal ID) of the merge request. Only available If [the pipelines are for merge requests](../merge_request_pipelines/index.md) and the merge request is created. This ID is unique for the current project.                                                                                                                                                         |
| `CI_MERGE_REQUEST_LABELS`                     | 11.9   | all    | Comma-separated label names of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                      |
| `CI_MERGE_REQUEST_MILESTONE`                  | 11.9   | all    | The milestone title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                              |
| `CI_MERGE_REQUEST_PROJECT_ID`                 | 11.6   | all    | The ID of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                            |
| `CI_MERGE_REQUEST_PROJECT_PATH`               | 11.6   | all    | The path of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `namespace/awesome-project`). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                       |
| `CI_MERGE_REQUEST_PROJECT_URL`                | 11.6   | all    | The URL of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `http://192.168.10.15:3000/namespace/awesome-project`). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                              |
| `CI_MERGE_REQUEST_REF_PATH`                   | 11.6   | all    | The ref path of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). (e.g. `refs/merge-requests/1/head`). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                |
| `CI_MERGE_REQUEST_SOURCE_BRANCH_NAME`         | 11.6   | all    | The source branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                           |
| `CI_MERGE_REQUEST_SOURCE_BRANCH_SHA`          | 11.9   | all    | The HEAD SHA of the source branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used, the merge request is created, and the pipeline is a [merged result pipeline](../merge_request_pipelines/pipelines_for_merged_results/index.md). **(PREMIUM)**   |
| `CI_MERGE_REQUEST_SOURCE_PROJECT_ID`          | 11.6   | all    | The ID of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                     |
| `CI_MERGE_REQUEST_SOURCE_PROJECT_PATH`        | 11.6   | all    | The path of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                   |
| `CI_MERGE_REQUEST_SOURCE_PROJECT_URL`         | 11.6   | all    | The URL of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                    |
| `CI_MERGE_REQUEST_TARGET_BRANCH_NAME`         | 11.6   | all    | The target branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                           |
| `CI_MERGE_REQUEST_TARGET_BRANCH_SHA`          | 11.9   | all    | The HEAD SHA of the target branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or [`rules`](../yaml/README.md#rules) syntax is used, the merge request is created, and the pipeline is a [merged result pipeline](../merge_request_pipelines/pipelines_for_merged_results/index.md). **(PREMIUM)**   |
| `CI_MERGE_REQUEST_TITLE`                      | 11.9   | all    | The title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` or  [`rules`](../yaml/README.md#rules) syntax is used and the merge request is created.                                                                                                                                                        |
| `CI_MERGE_REQUEST_EVENT_TYPE`                 | 12.3   | all    | The event type of the merge request, if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Can be `detached`, `merged_result` or `merge_train`. |
| `CI_MERGE_REQUEST_DIFF_ID`                    | 13.7   | all    | The version of the merge request diff, if [the pipelines are for merge requests](../merge_request_pipelines/index.md). |
| `CI_MERGE_REQUEST_DIFF_BASE_SHA`              | 13.7   | all    | The base SHA of the merge request diff, if [the pipelines are for merge requests](../merge_request_pipelines/index.md). |
| `CI_NODE_INDEX`                               | 11.5   | all    | Index of the job in the job set. If the job is not parallelized, this variable is not set.                                                                                                                                                                                                                                                                 |
| `CI_NODE_TOTAL`                               | 11.5   | all    | Total number of instances of this job running in parallel. If the job is not parallelized, this variable is set to `1`.                                                                                                                                                                                                                                    |
| `CI_PAGES_DOMAIN`                             | 11.8   | all    | The configured domain that hosts GitLab Pages.                                                                                                                                                                                                                                                                                                             |
| `CI_PAGES_URL`                                | 11.8   | all    | URL to GitLab Pages-built pages. Always belongs to a subdomain of `CI_PAGES_DOMAIN`.                                                                                                                                                                                                                                                                       |
| `CI_PIPELINE_ID`                              | 8.10   | all    | The instance-level ID of the current pipeline. This is a unique ID across all projects on GitLab.                                                                                                                                                                                                                                                                                                            |
| `CI_PIPELINE_IID`                             | 11.0   | all    | The project-level IID (internal ID) of the current pipeline. This ID is unique for the current project.                                                                                                                                                                                                                                                                                              |
| `CI_PIPELINE_SOURCE`                          | 10.0   | all    | Indicates how the pipeline was triggered. Possible options are: `push`, `web`, `schedule`, `api`, `external`, `chat`, `webide`, `merge_request_event`, `external_pull_request_event`, `parent_pipeline`, [`trigger`, or `pipeline`](../triggers/README.md#authentication-tokens). For pipelines created before GitLab 9.5, this is displayed as `unknown`. |
| `CI_PIPELINE_TRIGGERED`                       | all    | all    | The flag to indicate that job was [triggered](../triggers/README.md)                                                                                                                                                                                                                                                                                       |
| `CI_PIPELINE_URL`                             | 11.1   | 0.5    | Pipeline details URL                                                                                                                                                                                                                                                                                                                                       |
| `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/CD uses internally                                                                                                                                                                                                                                                                                        |
| `CI_PROJECT_NAME`                             | 8.10   | 0.5    | The name of the directory for the project that is currently being built. For example, if the project URL is `gitlab.example.com/group-name/project-1`, the `CI_PROJECT_NAME` would be `project-1`.                                                                                                                                                         |
| `CI_PROJECT_NAMESPACE`                        | 8.10   | 0.5    | The project namespace (username or group name) that is currently being built                                                                                                                                                                                                                                                                                |
| `CI_PROJECT_ROOT_NAMESPACE`                   | 13.2   | 0.5    | The **root** project namespace (username or group name) that is currently being built. For example, if `CI_PROJECT_NAMESPACE` is `root-group/child-group/grandchild-group`, `CI_PROJECT_ROOT_NAMESPACE` would be `root-group`.                                                                                                                                  |
| `CI_PROJECT_PATH`                             | 8.10   | 0.5    | The namespace with project name                                                                                                                                                                                                                                                                                                                            |
| `CI_PROJECT_PATH_SLUG`                        | 9.3    | all    | `$CI_PROJECT_PATH` lowercased and with everything except `0-9` and `a-z` replaced with `-`. Use in URLs and domain names.                                                                                                                                                                                                                                  |
| `CI_PROJECT_REPOSITORY_LANGUAGES`             | 12.3   | all    | Comma-separated, lowercased list of the languages used in the repository (e.g. `ruby,javascript,html,css`)                                                                                                                                                                                                                                                 |
| `CI_PROJECT_TITLE`                            | 12.4   | all    | The human-readable project name as displayed in the GitLab web interface.                                                                                                                                                                                                                                                                                  |
| `CI_PROJECT_URL`                              | 8.10   | 0.5    | The HTTP(S) address to access project                                                                                                                                                                                                                                                                                                                      |
| `CI_PROJECT_VISIBILITY`                       | 10.3   | all    | The project visibility (internal, private, public)                                                                                                                                                                                                                                                                                                         |
| `CI_REGISTRY`                                 | 8.10   | 0.5    | If the Container Registry is enabled it returns the address of the GitLab Container Registry. This variable includes a `:port` value if one has been specified in the registry configuration.                                                                                                                                                           |
| `CI_REGISTRY_IMAGE`                           | 8.10   | 0.5    | If the Container Registry is enabled for the project it returns the address of the registry tied to the specific project                                                                                                                                                                                                                                   |
| `CI_REGISTRY_PASSWORD`                        | 9.0    | all    | The password to use to push containers to the GitLab Container Registry, for the current project.                                                                                                                                                                                                                                                                |
| `CI_REGISTRY_USER`                            | 9.0    | all    | The username to use to push containers to the GitLab Container Registry, for the current project.                                                                                                                                                                                                                                                                 |
| `CI_REPOSITORY_URL`                           | 9.0    | all    | The URL to clone the Git repository                                                                                                                                                                                                                                                                                                                        |
| `CI_RUNNER_DESCRIPTION`                       | 8.10   | 0.5    | The description of the runner as saved in GitLab                                                                                                                                                                                                                                                                                                           |
| `CI_RUNNER_EXECUTABLE_ARCH`                   | all    | 10.6   | The OS/architecture of the GitLab Runner executable (note that this is not necessarily the same as the environment of the executor)                                                                                                                                                                                                                        |
| `CI_RUNNER_ID`                                | 8.10   | 0.5    | The unique ID of runner being used                                                                                                                                                                                                                                                                                                                         |
| `CI_RUNNER_REVISION`                          | all    | 10.6   | GitLab Runner revision that is executing the current job                                                                                                                                                                                                                                                                                                   |
| `CI_RUNNER_SHORT_TOKEN`                       | all    | 12.3   | First eight characters of the runner's token used to authenticate new job requests. Used as the runner's unique ID                                                                                                                                                                                                                                         |
| `CI_RUNNER_TAGS`                              | 8.10   | 0.5    | The defined runner tags                                                                                                                                                                                                                                                                                                                                    |
| `CI_RUNNER_VERSION`                           | all    | 10.6   | GitLab Runner version that is executing the current job                                                                                                                                                                                                                                                                                                    |
| `CI_SERVER`                                   | all    | all    | Mark that job is executed in CI environment                                                                                                                                                                                                                                                                                                                |
| `CI_SERVER_URL`                               | 12.7   | all    | The base URL of the GitLab instance, including protocol and port (like `https://gitlab.example.com:8080`)                                                                                                                                                                                                                                                           |
| `CI_SERVER_HOST`                              | 12.1   | all    | Host component of the GitLab instance URL, without protocol and port (like `gitlab.example.com`)                                                                                                                                                                                                                                                           |
| `CI_SERVER_PORT`                              | 12.8   | all    | Port component of the GitLab instance URL, without host and protocol (like `3000`)                                                                                                                                                                                                                                                                         |
| `CI_SERVER_PROTOCOL`                          | 12.8   | all    | Protocol component of the GitLab instance URL, without host and port (like `https`)                                                                                                                                                                                                                                                                        |
| `CI_SERVER_NAME`                              | all    | all    | The name of CI server that is used to coordinate jobs                                                                                                                                                                                                                                                                                                      |
| `CI_SERVER_REVISION`                          | all    | all    | GitLab revision that is used to schedule jobs                                                                                                                                                                                                                                                                                                              |
| `CI_SERVER_VERSION`                           | all    | all    | GitLab version that is used to schedule jobs                                                                                                                                                                                                                                                                                                               |
| `CI_SERVER_VERSION_MAJOR`                     | 11.4   | all    | GitLab version major component                                                                                                                                                                                                                                                                                                                             |
| `CI_SERVER_VERSION_MINOR`                     | 11.4   | all    | GitLab version minor component                                                                                                                                                                                                                                                                                                                             |
| `CI_SERVER_VERSION_PATCH`                     | 11.4   | all    | GitLab version patch component                                                                                                                                                                                                                                                                                                                             |
| `CI_SHARED_ENVIRONMENT`                       | all    | 10.1   | Marks that the job is executed in a shared environment (something that is persisted across CI invocations like `shell` or `ssh` executor). If the environment is shared, it is set to true, otherwise it is not defined at all.                                                                                                                            |
| `GITLAB_CI`                                   | all    | all    | Mark that job is executed in GitLab CI/CD environment                                                                                                                                                                                                                                                                                                         |
| `GITLAB_FEATURES`                             | 10.6   | all    | The comma separated list of licensed features available for your instance and plan                                                                                                                                                                                                                                                                         |
| `GITLAB_USER_EMAIL`                           | 8.12   | all    | The email of the user who started the job                                                                                                                                                                                                                                                                                                                  |
| `GITLAB_USER_ID`                              | 8.12   | all    | The ID of the user who started the job                                                                                                                                                                                                                                                                                                                     |
| `GITLAB_USER_LOGIN`                           | 10.0   | all    | The login username of the user who started the job                                                                                                                                                                                                                                                                                                         |
| `GITLAB_USER_NAME`                            | 10.0   | all    | The real name of the user who started the job                                                                                                                                                                                                                                                                                                              |
