type: image for a service that does not need Towbar’s managed database behavior, such as a metrics collector or another supporting container. Its manifest declares the image, runtime settings, health check, and target environment:
.towbar/resources/metrics.resource.yml
latest tag or digest. Confirm that the image supports the target server’s architecture and that its process listens on the declared port. Add runtime secret names to secrets.runtime, then enter the values in Towbar after sync. Do not commit credentials in the image reference, command, or manifest.
Image resources can use declared Docker-managed volumes, but Towbar does not give them the engine-specific backup and restore workflows of a managed database. If the service holds persistent data, protect it with storage tooling appropriate for the server. For a supported engine, prefer its managed database guide and practice a fresh-target restore.