| `skopeo-image` / `DOCKER_SKOPEO_IMAGE` | The Docker image used to run [skopeo](https://github.com/containers/skopeo) | `quay.io/containers/aio:latest`<br/>[](https://to-be-continuous.gitlab.io/doc/secu/trivy-DOCKER_SKOPEO_IMAGE)|
| `skopeo-image` / `DOCKER_SKOPEO_IMAGE` | The Docker image used to run [skopeo](https://github.com/containers/skopeo) | `quay.io/containers/skopeo:latest`<br/>[](https://to-be-continuous.gitlab.io/doc/secu/trivy-DOCKER_SKOPEO_IMAGE)|
| `prod-publish-strategy` / `DOCKER_PROD_PUBLISH_STRATEGY` | Defines the publish to production strategy. One of `manual` (i.e. _one-click_), `auto` or `none` (disabled). | `manual` |
| `release-extra-tags-pattern` / `DOCKER_RELEASE_EXTRA_TAGS_PATTERN` | Defines the image tag pattern that `$DOCKER_RELEASE_IMAGE` should match to push extra tags (supports capturing groups - [see below](#using-extra-tags)) | `^v?(?P<major>[0-9]+)\\.(?P<minor>[0-9]+)\\.(?P<patch>[0-9]+)(?P<suffix>(?P<prerelease>-[0-9A-Za-z-\\.]+)?(?P<build>\\+[0-9A-Za-z-\\.]+)?)$` _(SemVer pattern)_ |