All Container Scanning variables that are prefixed by `DOCKER_` in variable name are deprecated. This includes the `DOCKER_IMAGE`, `DOCKER_PASSWORD`, `DOCKER_USER`, and `DOCKERFILE_PATH` variables. Support for these variables will be removed in the GitLab 16.0 release. Use the [new variable names](https://docs.gitlab.com/ee/user/application_security/container_scanning/#available-cicd-variables) `CS_IMAGE`, `CS_REGISTRY_PASSWORD`, `CS_REGISTRY_USER`, and `CS_DOCKERFILE_PATH` in place of the deprecated names.