GCR is a private Docker registry backed by Cloud Storage. GCR supports hosting images in Docker image manifest V2 and OCI formats. Being part of the Google Cloud Platform, GCR provides access control methods backed by Google Cloud IAM, including support for both users and service accounts.
Docker images are associated with registries through the inclusion of a hostname in the image's name. Images hosted on GCR follow a naming convention of <HOST>/<PROJECT_ID>/<IMAGE_NAME>:<TAG>. The HOST may be one of gcr.io, us.gcr.io, eu.gcr.io, or asia.gcr.io. The hostname specifies which multi-regional Cloud Storage location the image will be hosted in. Currently, images tagged with the base gcr.io are hosted in the US, ...
