Managing additional OCI media types

By default the following list of media types is enabled in the Container Registry:

* OCI images
* Helm
* Cosign, SBOMs, attestations
* Source containers
* Singularity
* Conftest policies
* WASM

Note

The ADDITIONAL_OCI_ARTIFACT_TYPES is deprecated and will be removed in a future release. Since the validation of media types is not part of the OCI standard and new types keep being added we decided to deprecate this configuration.

For any other OCI media type that is not supported by default, you can add them to the ADDITIONAL_OCI_ARTIFACT_TYPES setting using the following format:

ADDITIONAL_OCI_ARTIFACT_TYPES = {
   "<oci config type 1>": [
       "<oci layer type A>",
       "<oci layer type B>",
   ],
   "<oci config type 2>": [
       "<oci layer type C>",
       "<oci layer type D>",
   ],
}

For example, you can add support for custom defined mediatype by adding the following to your ADDITIONAL_OCI_ARTIFACT_TYPES setting:

ADDITIONAL_OCI_ARTIFACT_TYPES = {
   "<oci config type 1>": [
       "<oci layer type A>",
       "<oci layer type B>",
   ],
   "<oci config type 2>": [
       "<oci layer type C>",
       "<oci layer type D>",
   ],
   "application/vnd.guardians.groot.config.v1+json": [
       "text/plain",
       "application/vnd.guardians.groot.docs.layer.v1+tar",
   ],
}

.. note::

When adding OCI media types that are not configured by default, it is necessary then to manually add the Default oci types to the list. The OCI image-spec types are supported by default, they are built-in and cannot be disabled, it is not necessary to add them manually to the list.