154 lines
4.2 KiB
Python
154 lines
4.2 KiB
Python
from abc import ABCMeta, abstractmethod
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from collections import namedtuple
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from six import add_metaclass
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class Repository(
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namedtuple('Repository', ['id', 'name', 'namespace_name', 'description', 'is_public',
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'kind'])):
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"""
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Repository represents a namespaced collection of tags.
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:type id: int
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:type name: string
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:type namespace_name: string
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:type description: string
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:type is_public: bool
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:type kind: string
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"""
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class DerivedImage(namedtuple('DerivedImage', ['ref', 'blob', 'internal_source_image_db_id'])):
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"""
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DerivedImage represents a user-facing alias for an image which was derived from another image.
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"""
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class RepositoryReference(namedtuple('RepositoryReference', ['id', 'name', 'namespace_name'])):
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"""
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RepositoryReference represents a reference to a Repository, without its full metadata.
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"""
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class ImageWithBlob(
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namedtuple('Image', [
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'image_id', 'blob', 'compat_metadata', 'repository', 'internal_db_id', 'v1_metadata'])):
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"""
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ImageWithBlob represents a user-facing alias for referencing an image, along with its blob.
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"""
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class Blob(namedtuple('Blob', ['uuid', 'size', 'uncompressed_size', 'uploading', 'locations'])):
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"""
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Blob represents an opaque binary blob saved to the storage system.
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"""
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class TorrentInfo(namedtuple('TorrentInfo', ['piece_length', 'pieces'])):
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"""
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TorrentInfo represents the torrent piece information associated with a blob.
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"""
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@add_metaclass(ABCMeta)
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class VerbsDataInterface(object):
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"""
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Interface that represents all data store interactions required by the registry's custom HTTP
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verbs.
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"""
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@abstractmethod
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def get_repository(self, namespace_name, repo_name):
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"""
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Returns a repository tuple for the repository with the given name under the given namespace.
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Returns None if no such repository was found.
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"""
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pass
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@abstractmethod
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def get_manifest_layers_with_blobs(self, repo_image):
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"""
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Returns the full set of manifest layers and their associated blobs starting at the given
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repository image and working upwards to the root image.
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"""
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pass
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@abstractmethod
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def get_blob_path(self, blob):
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"""
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Returns the storage path for the given blob.
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"""
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pass
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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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pass
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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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pass
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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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pass
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@abstractmethod
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def set_blob_size(self, blob, size):
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"""
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Sets the size field on a blob to the value specified.
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"""
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pass
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@abstractmethod
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def get_repo_blob_by_digest(self, namespace_name, repo_name, digest):
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"""
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Returns the blob with the given digest under the matching repository or None if none.
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"""
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pass
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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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pass
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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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pass
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@abstractmethod
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def lookup_derived_image(self, repo_image, verb, varying_metadata=None):
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"""
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Looks up the derived image for the given repository image, verb and optional varying metadata
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and returns it or None if none.
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"""
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pass
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@abstractmethod
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def lookup_or_create_derived_image(self, repo_image, verb, location, varying_metadata=None):
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"""
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Looks up the derived image for the given repository image, 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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pass
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@abstractmethod
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def get_tag_image(self, namespace_name, repo_name, tag_name):
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"""
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Returns the image associated with the live tag with the given name under the matching repository
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or None if none.
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"""
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pass
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