| `DOCKER_REGISTRY_MIRROR` | URL of a Docker registry mirror to use during the image build (instead of default `https://index.docker.io`) <br>:warning: Used by the `kaniko` and `dind` options only | _(none)_ |
| `DOCKER_REGISTRY_MIRROR` | URL of a Docker registry mirror to use during the image build (instead of default `https://index.docker.io`) <br>:warning: Used by the `kaniko` and `dind` options only | _(none)_ |
| `CONTAINER_REGISTRIES_CONFIG_FILE` | The [`registries.conf`](https://www.redhat.com/sysadmin/manage-container-registries) configuration to be used<br>:warning: Used by the `buildah` build only | _(none)_ |
| `CONTAINER_REGISTRIES_CONFIG_FILE` | The [`registries.conf`](https://www.redhat.com/sysadmin/manage-container-registries) configuration to be used<br>:warning: Used by the `buildah` build only | _(none)_ |
| `DOCKER_METADATA` | Additional `docker build`/`kaniko` arguments to set label | OCI Image Format Specification |
| `DOCKER_METADATA` | Additional `docker build`/`kaniko` arguments to set label | OCI Image Format Specification |
| `KANIKO_SNAPSHOT_IMAGE_CACHE` | Snapshot image repository that will be used to store cached layers<br>:warning: Used by the `kaniko` build only | `${DOCKER_SNAPSHOT_IMAGE%:*}/cache` |
This job produces _output variables_ that are propagated to downstream jobs (using [dotenv artifacts](https://docs.gitlab.com/ee/ci/pipelines/job_artifacts.html#artifactsreportsdotenv)):
This job produces _output variables_ that are propagated to downstream jobs (using [dotenv artifacts](https://docs.gitlab.com/ee/ci/pipelines/job_artifacts.html#artifactsreportsdotenv)):
"description":"The [registries.conf](https://www.redhat.com/sysadmin/manage-container-registries) configuration to be used\n\n_Used by the `buildah` build only_",
"description":"The [registries.conf](https://www.redhat.com/sysadmin/manage-container-registries) configuration to be used\n\n_Used by the `buildah` build only_",
"advanced":true
"advanced":true
},
{
"name":"KANIKO_SNAPSHOT_IMAGE_CACHE",
"description":"Snapshot image repository that will be used to store cached layers.\n\n_Used by the `kaniko` build only_",