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quay/endpoints/verbs/models_interface.py

159 lines
4.4 KiB
Python

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