345 lines
14 KiB
Python
345 lines
14 KiB
Python
from abc import ABCMeta, abstractmethod
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from six import add_metaclass
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@add_metaclass(ABCMeta)
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class RegistryDataInterface(object):
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""" Interface for code to work with the registry data model. The registry data model consists
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of all tables that store registry-specific information, such as Manifests, Blobs, Images,
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and Labels.
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"""
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@abstractmethod
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def supports_schema2(self, namespace_name):
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""" Returns whether the implementation of the data interface supports schema 2 format
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manifests. """
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@abstractmethod
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def get_tag_legacy_image_id(self, repository_ref, tag_name, storage):
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""" Returns the legacy image ID for the tag with a legacy images in
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the repository. Returns None if None.
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"""
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@abstractmethod
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def get_legacy_tags_map(self, repository_ref, storage):
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""" Returns a map from tag name to its legacy image ID, for all tags with legacy images in
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the repository. Note that this can be a *very* heavy operation.
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"""
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@abstractmethod
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def find_matching_tag(self, repository_ref, tag_names):
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""" Finds an alive tag in the repository matching one of the given tag names and returns it
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or None if none.
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"""
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@abstractmethod
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def get_most_recent_tag(self, repository_ref):
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""" Returns the most recently pushed alive tag in the repository, if any. If none, returns
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None.
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"""
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@abstractmethod
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def lookup_repository(self, namespace_name, repo_name, kind_filter=None):
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""" Looks up and returns a reference to the repository with the given namespace and name,
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or None if none. """
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@abstractmethod
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def get_manifest_for_tag(self, tag, backfill_if_necessary=False, include_legacy_image=False):
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""" Returns the manifest associated with the given tag. """
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@abstractmethod
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def lookup_manifest_by_digest(self, repository_ref, manifest_digest, allow_dead=False,
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include_legacy_image=False):
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""" Looks up the manifest with the given digest under the given repository and returns it
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or None if none. """
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@abstractmethod
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def create_manifest_and_retarget_tag(self, repository_ref, manifest_interface_instance, tag_name,
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storage):
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""" Creates a manifest in a repository, adding all of the necessary data in the model.
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The `manifest_interface_instance` parameter must be an instance of the manifest
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interface as returned by the image/docker package.
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Note that all blobs referenced by the manifest must exist under the repository or this
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method will fail and return None.
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Returns a reference to the (created manifest, tag) or (None, None) on error.
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"""
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@abstractmethod
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def get_legacy_images(self, repository_ref):
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"""
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Returns an iterator of all the LegacyImage's defined in the matching repository.
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"""
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@abstractmethod
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def get_legacy_image(self, repository_ref, docker_image_id, include_parents=False,
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include_blob=False):
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"""
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Returns the matching LegacyImages under the matching repository, if any. If none,
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returns None.
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"""
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@abstractmethod
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def create_manifest_label(self, manifest, key, value, source_type_name, media_type_name=None):
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""" Creates a label on the manifest with the given key and value.
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Can raise InvalidLabelKeyException or InvalidMediaTypeException depending
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on the validation errors.
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"""
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@abstractmethod
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def batch_create_manifest_labels(self, manifest):
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""" Returns a context manager for batch creation of labels on a manifest.
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Can raise InvalidLabelKeyException or InvalidMediaTypeException depending
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on the validation errors.
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"""
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@abstractmethod
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def list_manifest_labels(self, manifest, key_prefix=None):
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""" Returns all labels found on the manifest. If specified, the key_prefix will filter the
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labels returned to those keys that start with the given prefix.
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"""
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@abstractmethod
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def get_manifest_label(self, manifest, label_uuid):
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""" Returns the label with the specified UUID on the manifest or None if none. """
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@abstractmethod
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def delete_manifest_label(self, manifest, label_uuid):
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""" Delete the label with the specified UUID on the manifest. Returns the label deleted
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or None if none.
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"""
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@abstractmethod
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def list_repository_tags(self, repository_ref, include_legacy_images=False,
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start_pagination_id=None,
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limit=None):
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"""
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Returns a list of all the active tags in the repository. Note that this can be a *heavy*
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operation on repositories with a lot of tags, and should be avoided for more targetted
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operations wherever possible.
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"""
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@abstractmethod
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def list_repository_tag_history(self, repository_ref, page=1, size=100, specific_tag_name=None,
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active_tags_only=False):
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"""
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Returns the history of all tags in the repository (unless filtered). This includes tags that
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have been made in-active due to newer versions of those tags coming into service.
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"""
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@abstractmethod
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def get_repo_tag(self, repository_ref, tag_name, include_legacy_image=False):
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"""
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Returns the latest, *active* tag found in the repository, with the matching name
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or None if none.
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"""
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@abstractmethod
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def has_expired_tag(self, repository_ref, tag_name):
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"""
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Returns true if and only if the repository contains a tag with the given name that is expired.
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"""
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@abstractmethod
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def retarget_tag(self, repository_ref, tag_name, manifest_or_legacy_image,
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storage, is_reversion=False):
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"""
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Creates, updates or moves a tag to a new entry in history, pointing to the manifest or
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legacy image specified. If is_reversion is set to True, this operation is considered a
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reversion over a previous tag move operation. Returns the updated Tag or None on error.
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"""
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@abstractmethod
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def delete_tag(self, repository_ref, tag_name):
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"""
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Deletes the latest, *active* tag with the given name in the repository.
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"""
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@abstractmethod
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def delete_tags_for_manifest(self, manifest):
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"""
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Deletes all tags pointing to the given manifest, making the manifest inaccessible for pulling.
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Returns the tags deleted, if any. Returns None on error.
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"""
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@abstractmethod
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def change_repository_tag_expiration(self, tag, expiration_date):
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""" Sets the expiration date of the tag under the matching repository to that given. If the
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expiration date is None, then the tag will not expire. Returns a tuple of the previous
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expiration timestamp in seconds (if any), and whether the operation succeeded.
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"""
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@abstractmethod
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def get_legacy_images_owned_by_tag(self, tag):
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""" Returns all legacy images *solely owned and used* by the given tag. """
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@abstractmethod
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def get_security_status(self, manifest_or_legacy_image):
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""" Returns the security status for the given manifest or legacy image or None if none. """
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@abstractmethod
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def backfill_manifest_for_tag(self, tag):
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""" Backfills a manifest for the V1 tag specified.
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If a manifest already exists for the tag, returns that manifest.
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NOTE: This method will only be necessary until we've completed the backfill, at which point
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it should be removed.
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"""
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@abstractmethod
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def is_existing_disabled_namespace(self, namespace_name):
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""" Returns whether the given namespace exists and is disabled. """
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@abstractmethod
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def is_namespace_enabled(self, namespace_name):
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""" Returns whether the given namespace exists and is enabled. """
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@abstractmethod
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def get_manifest_local_blobs(self, manifest, include_placements=False):
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""" Returns the set of local blobs for the given manifest or None if none. """
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@abstractmethod
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def list_manifest_layers(self, manifest, storage, include_placements=False):
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""" Returns an *ordered list* of the layers found in the manifest, starting at the base
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and working towards the leaf, including the associated Blob and its placements
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(if specified). The layer information in `layer_info` will be of type
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`image.docker.types.ManifestImageLayer`. Should not be called for a manifest list.
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"""
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@abstractmethod
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def list_parsed_manifest_layers(self, repository_ref, parsed_manifest, storage,
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include_placements=False):
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""" Returns an *ordered list* of the layers found in the parsed manifest, starting at the base
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and working towards the leaf, including the associated Blob and its placements
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(if specified). The layer information in `layer_info` will be of type
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`image.docker.types.ManifestImageLayer`. Should not be called for a manifest list.
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"""
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@abstractmethod
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def lookup_derived_image(self, manifest, verb, varying_metadata=None, include_placements=False):
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"""
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Looks up the derived image for the given manifest, verb and optional varying metadata and
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returns it or None if none.
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"""
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@abstractmethod
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def lookup_or_create_derived_image(self, manifest, verb, storage_location, storage,
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varying_metadata=None, include_placements=False):
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"""
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Looks up the derived image for the given maniest, verb and optional varying metadata
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and returns it. If none exists, a new derived image is created.
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"""
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@abstractmethod
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def get_derived_image_signature(self, derived_image, signer_name):
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"""
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Returns the signature associated with the derived image and a specific signer or None if none.
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"""
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@abstractmethod
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def set_derived_image_signature(self, derived_image, signer_name, signature):
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"""
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Sets the calculated signature for the given derived image and signer to that specified.
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"""
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@abstractmethod
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def delete_derived_image(self, derived_image):
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"""
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Deletes a derived image and all of its storage.
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"""
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@abstractmethod
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def set_derived_image_size(self, derived_image, compressed_size):
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"""
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Sets the compressed size on the given derived image.
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"""
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@abstractmethod
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def get_torrent_info(self, blob):
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"""
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Returns the torrent information associated with the given blob or None if none.
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"""
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@abstractmethod
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def set_torrent_info(self, blob, piece_length, pieces):
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"""
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Sets the torrent infomation associated with the given blob to that specified.
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"""
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@abstractmethod
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def get_repo_blob_by_digest(self, repository_ref, blob_digest, include_placements=False):
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"""
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Returns the blob in the repository with the given digest, if any or None if none. Note that
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there may be multiple records in the same repository for the same blob digest, so the return
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value of this function may change.
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"""
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@abstractmethod
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def create_blob_upload(self, repository_ref, upload_id, location_name, storage_metadata):
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""" Creates a new blob upload and returns a reference. If the blob upload could not be
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created, returns None. """
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@abstractmethod
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def lookup_blob_upload(self, repository_ref, blob_upload_id):
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""" Looks up the blob upload with the given ID under the specified repository and returns it
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or None if none.
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"""
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@abstractmethod
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def update_blob_upload(self, blob_upload, uncompressed_byte_count, piece_hashes, piece_sha_state,
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storage_metadata, byte_count, chunk_count, sha_state):
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""" Updates the fields of the blob upload to match those given. Returns the updated blob upload
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or None if the record does not exists.
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"""
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@abstractmethod
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def delete_blob_upload(self, blob_upload):
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""" Deletes a blob upload record. """
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@abstractmethod
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def commit_blob_upload(self, blob_upload, blob_digest_str, blob_expiration_seconds):
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""" Commits the blob upload into a blob and sets an expiration before that blob will be GCed.
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"""
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@abstractmethod
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def mount_blob_into_repository(self, blob, target_repository_ref, expiration_sec):
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"""
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Mounts the blob from another repository into the specified target repository, and adds an
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expiration before that blob is automatically GCed. This function is useful during push
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operations if an existing blob from another repository is being pushed. Returns False if
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the mounting fails. Note that this function does *not* check security for mounting the blob
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and the caller is responsible for doing this check (an example can be found in
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endpoints/v2/blob.py).
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"""
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@abstractmethod
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def set_tags_expiration_for_manifest(self, manifest, expiration_sec):
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"""
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Sets the expiration on all tags that point to the given manifest to that specified.
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"""
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@abstractmethod
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def get_schema1_parsed_manifest(self, manifest, namespace_name, repo_name, tag_name, storage):
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""" Returns the schema 1 version of this manifest, or None if none. """
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@abstractmethod
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def create_manifest_with_temp_tag(self, repository_ref, manifest_interface_instance,
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expiration_sec, storage):
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""" Creates a manifest under the repository and sets a temporary tag to point to it.
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Returns the manifest object created or None on error.
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"""
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@abstractmethod
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def get_cached_namespace_region_blacklist(self, model_cache, namespace_name):
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""" Returns a cached set of ISO country codes blacklisted for pulls for the namespace
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or None if the list could not be loaded.
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"""
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@abstractmethod
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def convert_manifest(self, manifest, namespace_name, repo_name, tag_name, allowed_mediatypes,
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storage):
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""" Attempts to convert the specified into a parsed manifest with a media type
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in the allowed_mediatypes set. If not possible, or an error occurs, returns None.
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"""
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