Many registries implement support for tag immutability. In order to write tests that
rely on that behaviour, it would be useful to support it in ocimem.
Proposed new API:
package ocimem
// NewWithConfig returns a new in-memory [ociregistry.Interface]
// implementation using the given configuration. If
// cfg is nil, it's treated the same as a pointer to the zero [Config] value.
func NewWithConfig(cfg0 *Config) *Registry
// Config holds configuration for the registry.
type Config struct {
// ImmutableTags specifies that tags in the registry cannot
// be changed. Specifically the following restrictions are enforced:
// - no deletion of tagged manifests or any blob that a tagged manifest
// refers to.
// - no removal of tags from a manifest
// - no pushing of a tag if that tag already exists, even if it has
// the same digest.
ImmutableTags bool
}
This is backward compatible and leaves the door open for more configuration options.
rogpeppe
commented
4 months ago
Many registries implement support for tag immutability. In order to write tests that rely on that behaviour, it would be useful to support it in
ocimem.Proposed new API:
This is backward compatible and leaves the door open for more configuration options.