Merge branch 'poffey21-master-patch-02079' into 'master'

Add constraints regarding the registry password

See merge request gitlab-org/gitlab!66975

doc/ci/variables/predefined_variables.md

@@ -90,7 +90,7 @@ There are also [Kubernetes-specific deployment variables](../../user/project/clu
 | `CI_PROJECT_URL`                         | 8.10   | 0.5    | The HTTP(S) address of the project. |
 | `CI_PROJECT_VISIBILITY`                  | 10.3   | all    | The project visibility. Can be `internal`, `private`, or `public`. |
 | `CI_REGISTRY_IMAGE`                      | 8.10   | 0.5    | The address of the project's Container Registry. Only available if the Container Registry is enabled for the project. |
-| `CI_REGISTRY_PASSWORD`                   | 9.0    | all    | The password to push containers to the project's GitLab Container Registry. Only available if the Container Registry is enabled for the project. |
+| `CI_REGISTRY_PASSWORD`                   | 9.0    | all    | The password to push containers to the project's GitLab Container Registry. Only available if the Container Registry is enabled for the project. This password value is the same as the `CI_JOB_TOKEN` and is valid only as long as the job is running. Use the `CI_DEPLOY_PASSWORD` for long-lived access to the registry |
 | `CI_REGISTRY_USER`                       | 9.0    | all    | The username to push containers to the project's GitLab Container Registry. Only available if the Container Registry is enabled for the project. |
 | `CI_REGISTRY`                            | 8.10   | 0.5    | The address of the GitLab Container Registry. Only available if the Container Registry is enabled for the project. This variable includes a `:port` value if one is specified in the registry configuration. |
 | `CI_REPOSITORY_URL`                      | 9.0    | all    | The URL to clone the Git repository. |