update interfaces to use ABC
This commit is contained in:
Jimmy Zelinskie
parent
a1a930b833
commit
44eca10c05
14 changed files with 467 additions and 508 deletions
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@ -1,10 +1,12 @@
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from abc import ABCMeta, abstractmethod
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from collections import namedtuple
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from namedlist import namedlist
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from peewee import IntegrityError
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from six import add_metaclass
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from data import model, database
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from data.model import DataModelException, TagAlreadyCreatedException
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from data.model import DataModelException
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from image.docker.v1 import DockerV1Metadata
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_MEDIA_TYPE = "application/vnd.docker.distribution.manifest.v1+prettyjws"
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@ -54,153 +56,153 @@ class Label(namedtuple('Label', ['key', 'value', 'source_type', 'media_type'])):
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"""
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@add_metaclass(ABCMeta)
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class DockerRegistryV2DataInterface(object):
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"""
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Interface that represents all data store interactions required by a Docker Registry v1.
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"""
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@classmethod
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def create_repository(cls, namespace_name, repo_name, creating_user=None):
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@abstractmethod
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def create_repository(self, namespace_name, repo_name, creating_user=None):
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"""
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Creates a new repository under the specified namespace with the given name. The user supplied is
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the user creating the repository, if any.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def repository_is_public(cls, namespace_name, repo_name):
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@abstractmethod
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def repository_is_public(self, namespace_name, repo_name):
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"""
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Returns true if the repository with the given name under the given namespace has public
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visibility.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_repository(cls, namespace_name, repo_name):
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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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raise NotImplementedError()
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pass
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@classmethod
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def has_active_tag(cls, namespace_name, repo_name, tag_name):
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@abstractmethod
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def has_active_tag(self, namespace_name, repo_name, tag_name):
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"""
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Returns whether there is an active tag for the tag with the given name under the matching
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repository, if any, or none if none.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_manifest_by_tag(cls, namespace_name, repo_name, tag_name):
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@abstractmethod
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def get_manifest_by_tag(self, namespace_name, repo_name, tag_name):
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"""
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Returns the current manifest for the tag with the given name under the matching repository, if
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any, or None if none.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_manifest_by_digest(cls, namespace_name, repo_name, digest):
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@abstractmethod
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def get_manifest_by_digest(self, namespace_name, repo_name, digest):
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"""
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Returns the manifest matching the given digest under the matching repository, if any, or None if
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none.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def delete_manifest_by_digest(cls, namespace_name, repo_name, digest):
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@abstractmethod
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def delete_manifest_by_digest(self, namespace_name, repo_name, digest):
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"""
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Deletes the manifest with the associated digest (if any) and returns all removed tags that
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pointed to that manifest. If the manifest was not found, returns an empty list.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_docker_v1_metadata_by_tag(cls, namespace_name, repo_name, tag_name):
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@abstractmethod
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def get_docker_v1_metadata_by_tag(self, namespace_name, repo_name, tag_name):
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"""
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Returns the Docker V1 metadata associated with the tag with the given name under the matching
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repository, if any. If none, returns None.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_docker_v1_metadata_by_image_id(cls, namespace_name, repo_name, docker_image_ids):
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@abstractmethod
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def get_docker_v1_metadata_by_image_id(self, namespace_name, repo_name, docker_image_ids):
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"""
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Returns a map of Docker V1 metadata for each given image ID, matched under the repository with
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the given namespace and name. Returns an empty map if the matching repository was not found.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_parents_docker_v1_metadata(cls, namespace_name, repo_name, docker_image_id):
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@abstractmethod
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def get_parents_docker_v1_metadata(self, namespace_name, repo_name, docker_image_id):
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"""
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Returns an ordered list containing the Docker V1 metadata for each parent of the image with the
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given docker ID under the matching repository. Returns an empty list if the image was not found.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def create_manifest_and_update_tag(cls, namespace_name, repo_name, tag_name, manifest_digest,
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@abstractmethod
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def create_manifest_and_update_tag(self, namespace_name, repo_name, tag_name, manifest_digest,
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manifest_bytes):
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"""
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Creates a new manifest with the given digest and byte data, and assigns the tag with the given
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name under the matching repository to it.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def synthesize_v1_image(cls, repository, storage, image_id, created, comment, command,
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@abstractmethod
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def synthesize_v1_image(self, repository, storage, image_id, created, comment, command,
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compat_json, parent_image_id):
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"""
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Synthesizes a V1 image under the specified repository, pointing to the given storage and returns
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the V1 metadata for the synthesized image.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def save_manifest(cls, namespace_name, repo_name, tag_name, leaf_layer_docker_id, manifest_digest,
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manifest_bytes):
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@abstractmethod
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def save_manifest(self, namespace_name, repo_name, tag_name, leaf_layer_docker_id,
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manifest_digest, manifest_bytes):
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"""
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Saves a manifest pointing to the given leaf image, with the given manifest, under the matching
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repository as a tag with the given name.
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Returns a boolean whether or not the tag was newly created or not.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def repository_tags(cls, namespace_name, repo_name, limit, offset):
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@abstractmethod
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def repository_tags(self, namespace_name, repo_name, limit, offset):
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"""
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Returns the active tags under the repository with the given name and namespace.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_visible_repositories(cls, username, limit, offset):
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@abstractmethod
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def get_visible_repositories(self, username, limit, offset):
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"""
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Returns the repositories visible to the user with the given username, if any.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def create_blob_upload(cls, namespace_name, repo_name, upload_uuid, location_name,
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storage_metadata):
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@abstractmethod
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def create_blob_upload(self, namespace_name, repo_name, upload_uuid, location_name, storage_metadata):
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"""
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Creates a blob upload under the matching repository with the given UUID and metadata.
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Returns whether the matching repository exists.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def blob_upload_by_uuid(cls, namespace_name, repo_name, upload_uuid):
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@abstractmethod
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def blob_upload_by_uuid(self, namespace_name, repo_name, upload_uuid):
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"""
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Searches for a blob upload with the given UUID under the given repository and returns it or None
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if none.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def update_blob_upload(cls, blob_upload):
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@abstractmethod
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def update_blob_upload(self, blob_upload):
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"""
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Saves any changes to the blob upload object given to the backing data store.
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Fields that can change:
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@ -212,61 +214,53 @@ class DockerRegistryV2DataInterface(object):
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- chunk_count
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- sha_state
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def delete_blob_upload(cls, namespace_name, repo_name, uuid):
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@abstractmethod
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def delete_blob_upload(self, namespace_name, repo_name, uuid):
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"""
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Deletes the blob upload with the given uuid under the matching repository. If none, does
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nothing.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def create_blob_and_temp_tag(cls, namespace_name, repo_name, blob_digest, blob_upload,
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@abstractmethod
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def create_blob_and_temp_tag(self, namespace_name, repo_name, blob_digest, blob_upload,
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expiration_sec):
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"""
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Creates a blob and links a temporary tag with the specified expiration to it under the matching
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repository.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def lookup_blobs_by_digest(cls, namespace_name, repo_name, digests):
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"""
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Returns all the blobs with matching digests found under the matching repository. If the
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repository doesn't exist, returns {}.
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"""
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raise NotImplementedError()
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@classmethod
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def get_blob_by_digest(cls, namespace_name, repo_name, digest):
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@abstractmethod
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def get_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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raise NotImplementedError()
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pass
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@classmethod
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def save_bittorrent_pieces(cls, blob, piece_size, piece_bytes):
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@abstractmethod
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def save_bittorrent_pieces(self, blob, piece_size, piece_bytes):
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"""
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Saves the BitTorrent piece hashes for the given blob.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def create_manifest_labels(cls, namespace_name, repo_name, manifest_digest, labels):
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@abstractmethod
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def create_manifest_labels(self, namespace_name, repo_name, manifest_digest, labels):
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"""
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Creates a new labels for the provided manifest.
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"""
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raise NotImplementedError()
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pass
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@classmethod
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def get_blob_path(cls, blob):
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@abstractmethod
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def get_blob_path(self, blob):
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"""
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Once everything is moved over, this could be in util.registry and not even touch the database.
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"""
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raise NotImplementedError()
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pass
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class PreOCIModel(DockerRegistryV2DataInterface):
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@ -274,58 +268,40 @@ class PreOCIModel(DockerRegistryV2DataInterface):
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PreOCIModel implements the data model for the v2 Docker Registry protocol using a database schema
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before it was changed to support the OCI specification.
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"""
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@classmethod
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def create_repository(cls, namespace_name, repo_name, creating_user=None):
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def create_repository(self, namespace_name, repo_name, creating_user=None):
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return model.repository.create_repository(namespace_name, repo_name, creating_user)
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@classmethod
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def repository_is_public(cls, namespace_name, repo_name):
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def repository_is_public(self, namespace_name, repo_name):
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return model.repository.repository_is_public(namespace_name, repo_name)
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@classmethod
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def _repository_for_repo(cls, repo):
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""" Returns a Repository object representing the repo data model instance given. """
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return Repository(
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id=repo.id,
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name=repo.name,
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namespace_name=repo.namespace_user.username,
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description=repo.description,
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is_public=model.repository.is_repository_public(repo)
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)
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@classmethod
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def get_repository(cls, namespace_name, repo_name):
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def get_repository(self, namespace_name, repo_name):
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repo = model.repository.get_repository(namespace_name, repo_name)
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if repo is None:
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return None
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return cls._repository_for_repo(repo)
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return _repository_for_repo(repo)
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@classmethod
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def has_active_tag(cls, namespace_name, repo_name, tag_name):
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def has_active_tag(self, namespace_name, repo_name, tag_name):
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try:
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model.tag.get_active_tag(namespace_name, repo_name, tag_name)
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return True
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except database.RepositoryTag.DoesNotExist:
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return False
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@classmethod
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def get_manifest_by_tag(cls, namespace_name, repo_name, tag_name):
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def get_manifest_by_tag(self, namespace_name, repo_name, tag_name):
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try:
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manifest = model.tag.load_tag_manifest(namespace_name, repo_name, tag_name)
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return ManifestJSON(digest=manifest.digest, json=manifest.json_data, media_type=_MEDIA_TYPE)
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except model.InvalidManifestException:
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return None
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@classmethod
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def get_manifest_by_digest(cls, namespace_name, repo_name, digest):
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def get_manifest_by_digest(self, namespace_name, repo_name, digest):
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try:
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manifest = model.tag.load_manifest_by_digest(namespace_name, repo_name, digest)
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return ManifestJSON(digest=digest, json=manifest.json_data, media_type=_MEDIA_TYPE)
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except model.InvalidManifestException:
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return None
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@classmethod
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def delete_manifest_by_digest(cls, namespace_name, repo_name, digest):
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def delete_manifest_by_digest(self, namespace_name, repo_name, digest):
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def _tag_view(tag):
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return Tag(
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name=tag.name,
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@ -339,56 +315,31 @@ class PreOCIModel(DockerRegistryV2DataInterface):
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tags = model.tag.delete_manifest_by_digest(namespace_name, repo_name, digest)
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return [_tag_view(tag) for tag in tags]
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@classmethod
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def _docker_v1_metadata(cls, namespace_name, repo_name, repo_image):
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"""
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Returns a DockerV1Metadata object for the given image under the repository with the given
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namespace and name. Note that the namespace and name are passed here as an optimization, and are
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*not checked* against the image.
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"""
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return DockerV1Metadata(
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namespace_name=namespace_name,
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repo_name=repo_name,
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image_id=repo_image.docker_image_id,
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checksum=repo_image.v1_checksum,
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content_checksum=repo_image.storage.content_checksum,
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compat_json=repo_image.v1_json_metadata,
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created=repo_image.created,
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comment=repo_image.comment,
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command=repo_image.command,
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# TODO: make sure this isn't needed anywhere, as it is expensive to lookup
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parent_image_id=None,
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)
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@classmethod
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def get_docker_v1_metadata_by_tag(cls, namespace_name, repo_name, tag_name):
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def get_docker_v1_metadata_by_tag(self, namespace_name, repo_name, tag_name):
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try:
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repo_img = model.tag.get_tag_image(namespace_name, repo_name, tag_name, include_storage=True)
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return cls._docker_v1_metadata(namespace_name, repo_name, repo_img)
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return _docker_v1_metadata(namespace_name, repo_name, repo_img)
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except DataModelException:
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return None
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@classmethod
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def get_docker_v1_metadata_by_image_id(cls, namespace_name, repo_name, docker_image_ids):
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def get_docker_v1_metadata_by_image_id(self, namespace_name, repo_name, docker_image_ids):
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repo = model.repository.get_repository(namespace_name, repo_name)
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if repo is None:
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return {}
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images_query = model.image.lookup_repository_images(repo, docker_image_ids)
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return {image.docker_image_id: cls._docker_v1_metadata(namespace_name, repo_name, image)
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return {image.docker_image_id: _docker_v1_metadata(namespace_name, repo_name, image)
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for image in images_query}
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@classmethod
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def get_parents_docker_v1_metadata(cls, namespace_name, repo_name, docker_image_id):
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def get_parents_docker_v1_metadata(self, namespace_name, repo_name, docker_image_id):
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repo_image = model.image.get_repo_image(namespace_name, repo_name, docker_image_id)
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if repo_image is None:
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return []
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parents = model.image.get_parent_images(namespace_name, repo_name, repo_image)
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return [cls._docker_v1_metadata(namespace_name, repo_name, image) for image in parents]
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return [_docker_v1_metadata(namespace_name, repo_name, image) for image in parents]
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@classmethod
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def create_manifest_and_update_tag(cls, namespace_name, repo_name, tag_name, manifest_digest,
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def create_manifest_and_update_tag(self, namespace_name, repo_name, tag_name, manifest_digest,
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manifest_bytes):
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try:
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model.tag.associate_generated_tag_manifest(namespace_name, repo_name, tag_name,
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@ -397,8 +348,7 @@ class PreOCIModel(DockerRegistryV2DataInterface):
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# It's already there!
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pass
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@classmethod
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def synthesize_v1_image(cls, repository, storage, image_id, created, comment, command,
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def synthesize_v1_image(self, repository, storage, image_id, created, comment, command,
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compat_json, parent_image_id):
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repo = model.repository.get_repository(repository.namespace_name, repository.name)
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if repo is None:
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@ -417,18 +367,16 @@ class PreOCIModel(DockerRegistryV2DataInterface):
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repo_image = model.image.synthesize_v1_image(repo, storage_obj, image_id, created, comment,
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command, compat_json, parent_image)
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return cls._docker_v1_metadata(repo.namespace_user.username, repo.name, repo_image)
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return _docker_v1_metadata(repo.namespace_user.username, repo.name, repo_image)
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@classmethod
|
||||
def save_manifest(cls, namespace_name, repo_name, tag_name, leaf_layer_docker_id, manifest_digest,
|
||||
manifest_bytes):
|
||||
def save_manifest(self, namespace_name, repo_name, tag_name, leaf_layer_docker_id,
|
||||
manifest_digest, manifest_bytes):
|
||||
(_, newly_created) = model.tag.store_tag_manifest(namespace_name, repo_name, tag_name,
|
||||
leaf_layer_docker_id, manifest_digest,
|
||||
manifest_bytes)
|
||||
return newly_created
|
||||
|
||||
@classmethod
|
||||
def repository_tags(cls, namespace_name, repo_name, limit, offset):
|
||||
def repository_tags(self, namespace_name, repo_name, limit, offset):
|
||||
def _tag_view(tag):
|
||||
return Tag(
|
||||
name=tag.name,
|
||||
|
|
@ -443,15 +391,12 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
tags_query = tags_query.limit(limit).offset(offset)
|
||||
return [_tag_view(tag) for tag in tags_query]
|
||||
|
||||
@classmethod
|
||||
def get_visible_repositories(cls, username, limit, offset):
|
||||
def get_visible_repositories(self, username, limit, offset):
|
||||
query = model.repository.get_visible_repositories(username, include_public=(username is None))
|
||||
query = query.limit(limit).offset(offset)
|
||||
return [cls._repository_for_repo(repo) for repo in query]
|
||||
return [_repository_for_repo(repo) for repo in query]
|
||||
|
||||
@classmethod
|
||||
def create_blob_upload(cls, namespace_name, repo_name, upload_uuid, location_name,
|
||||
storage_metadata):
|
||||
def create_blob_upload(self, namespace_name, repo_name, upload_uuid, location_name, storage_metadata):
|
||||
try:
|
||||
model.blob.initiate_upload(namespace_name, repo_name, upload_uuid, location_name,
|
||||
storage_metadata)
|
||||
|
|
@ -459,8 +404,7 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
except database.Repository.DoesNotExist:
|
||||
return False
|
||||
|
||||
@classmethod
|
||||
def blob_upload_by_uuid(cls, namespace_name, repo_name, upload_uuid):
|
||||
def blob_upload_by_uuid(self, namespace_name, repo_name, upload_uuid):
|
||||
try:
|
||||
found = model.blob.get_blob_upload(namespace_name, repo_name, upload_uuid)
|
||||
except model.InvalidBlobUpload:
|
||||
|
|
@ -480,8 +424,7 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
storage_metadata=found.storage_metadata,
|
||||
)
|
||||
|
||||
@classmethod
|
||||
def update_blob_upload(cls, blob_upload):
|
||||
def update_blob_upload(self, blob_upload):
|
||||
# Lookup the blob upload object.
|
||||
try:
|
||||
blob_upload_record = model.blob.get_blob_upload(blob_upload.repo_namespace_name,
|
||||
|
|
@ -498,21 +441,18 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
blob_upload_record.sha_state = blob_upload.sha_state
|
||||
blob_upload_record.save()
|
||||
|
||||
@classmethod
|
||||
def delete_blob_upload(cls, namespace_name, repo_name, uuid):
|
||||
def delete_blob_upload(self, namespace_name, repo_name, uuid):
|
||||
try:
|
||||
found = model.blob.get_blob_upload(namespace_name, repo_name, uuid)
|
||||
found.delete_instance()
|
||||
except model.InvalidBlobUpload:
|
||||
return
|
||||
|
||||
@classmethod
|
||||
def create_blob_and_temp_tag(cls, namespace_name, repo_name, blob_digest, blob_upload,
|
||||
def create_blob_and_temp_tag(self, namespace_name, repo_name, blob_digest, blob_upload,
|
||||
expiration_sec):
|
||||
location_obj = model.storage.get_image_location_for_name(blob_upload.location_name)
|
||||
blob_record = model.blob.store_blob_record_and_temp_link(namespace_name, repo_name,
|
||||
blob_digest,
|
||||
location_obj.id,
|
||||
blob_digest, location_obj.id,
|
||||
blob_upload.byte_count,
|
||||
expiration_sec,
|
||||
blob_upload.uncompressed_byte_count)
|
||||
|
|
@ -523,8 +463,7 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
locations=[blob_upload.location_name],
|
||||
)
|
||||
|
||||
@classmethod
|
||||
def lookup_blobs_by_digest(cls, namespace_name, repo_name, digests):
|
||||
def lookup_blobs_by_digest(self, namespace_name, repo_name, digests):
|
||||
def _blob_view(blob_record):
|
||||
return Blob(
|
||||
uuid=blob_record.uuid,
|
||||
|
|
@ -539,8 +478,7 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
query = model.storage.lookup_repo_storages_by_content_checksum(repo, digests)
|
||||
return {storage.content_checksum: _blob_view(storage) for storage in query}
|
||||
|
||||
@classmethod
|
||||
def get_blob_by_digest(cls, namespace_name, repo_name, digest):
|
||||
def get_blob_by_digest(self, namespace_name, repo_name, digest):
|
||||
try:
|
||||
blob_record = model.blob.get_repo_blob_by_digest(namespace_name, repo_name, digest)
|
||||
return Blob(
|
||||
|
|
@ -552,13 +490,11 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
except model.BlobDoesNotExist:
|
||||
return None
|
||||
|
||||
@classmethod
|
||||
def save_bittorrent_pieces(cls, blob, piece_size, piece_bytes):
|
||||
def save_bittorrent_pieces(self, blob, piece_size, piece_bytes):
|
||||
blob_record = model.storage.get_storage_by_uuid(blob.uuid)
|
||||
model.storage.save_torrent_info(blob_record, piece_size, piece_bytes)
|
||||
|
||||
@classmethod
|
||||
def create_manifest_labels(cls, namespace_name, repo_name, manifest_digest, labels):
|
||||
def create_manifest_labels(self, namespace_name, repo_name, manifest_digest, labels):
|
||||
if not labels:
|
||||
# No point in doing anything more.
|
||||
return
|
||||
|
|
@ -568,7 +504,42 @@ class PreOCIModel(DockerRegistryV2DataInterface):
|
|||
model.label.create_manifest_label(tag_manifest, label.key, label.value, label.source_type,
|
||||
label.media_type)
|
||||
|
||||
@classmethod
|
||||
def get_blob_path(cls, blob):
|
||||
def get_blob_path(self, blob):
|
||||
blob_record = model.storage.get_storage_by_uuid(blob.uuid)
|
||||
return model.storage.get_layer_path(blob_record)
|
||||
|
||||
|
||||
def _docker_v1_metadata(namespace_name, repo_name, repo_image):
|
||||
"""
|
||||
Returns a DockerV1Metadata object for the given Pre-OCI repo_image under the
|
||||
repository with the given namespace and name. Note that the namespace and
|
||||
name are passed here as an optimization, and are *not checked* against the
|
||||
image.
|
||||
"""
|
||||
return DockerV1Metadata(
|
||||
namespace_name=namespace_name,
|
||||
repo_name=repo_name,
|
||||
image_id=repo_image.docker_image_id,
|
||||
checksum=repo_image.v1_checksum,
|
||||
content_checksum=repo_image.storage.content_checksum,
|
||||
compat_json=repo_image.v1_json_metadata,
|
||||
created=repo_image.created,
|
||||
comment=repo_image.comment,
|
||||
command=repo_image.command,
|
||||
# TODO: make sure this isn't needed anywhere, as it is expensive to lookup
|
||||
parent_image_id=None,
|
||||
)
|
||||
|
||||
|
||||
def _repository_for_repo(repo):
|
||||
""" Returns a Repository object representing the Pre-OCI data model repo instance given. """
|
||||
return Repository(
|
||||
id=repo.id,
|
||||
name=repo.name,
|
||||
namespace_name=repo.namespace_user.username,
|
||||
description=repo.description,
|
||||
is_public=model.repository.is_repository_public(repo)
|
||||
)
|
||||
|
||||
|
||||
pre_oci_model = PreOCIModel()
|
||||
|
|
|
|||
Reference in a new issue