Inspect, copy, and sync container images without a runtime.
low risk
skopeo operates on container images in registries without needing a container runtime or root. It inspects images (tags, layers, config), copies images between registries, and syncs registry contents. Essential for registry migrations and air-gapped environments.
skopeo inspect docker://nginx:latestInspect nginx image metadata without pulling · explain & risk-check →skopeo list-tags docker://registry.hub.docker.com/library/nginxList all available tags for an image · explain & risk-check →skopeo copy docker://source-registry/image:tag docker://dest-registry/image:tagCopy image between registries · explain & risk-check →skopeo copy docker://nginx:latest oci:/tmp/nginx-localCopy image to local OCI directory · explain & risk-check →Use `skopeo list-tags` in CI to check if a specific image tag exists before pulling — prevents misleading 'image not found' errors mid-pipeline.
Reference text is hand-written and may be incomplete — check man skopeo for your version. Test destructive commands on a non-production system first.