Merge pull request #3234 from quay/joseph.schorr/QUAY-1030/interfacing-part-8

Change verbs endpoint to use the new registry data model interface

data/model/blob.py

@@ -7,6 +7,23 @@ from data.database import (Repository, Namespace, ImageStorage, Image, ImageStor
                            BlobUpload, ImageStorageLocation, db_random_func)
 
 
+def get_repository_blob_by_digest(repository, blob_digest):
+  """ Find the content-addressable blob linked to the specified repository.
+  """
+  try:
+    storage_id_query = (ImageStorage
+                        .select(ImageStorage.id)
+                        .join(Image)
+                        .where(Image.repository == repository,
+                               ImageStorage.content_checksum == blob_digest,
+                               ImageStorage.uploading == False)
+                        .limit(1))
+
+    return storage_model.get_storage_by_subquery(storage_id_query)
+  except InvalidImageException:
+    raise BlobDoesNotExist('Blob does not exist with digest: {0}'.format(blob_digest))
+
+
 def get_repo_blob_by_digest(namespace, repo_name, blob_digest):
   """ Find the content-addressable blob linked to the specified repository.
   """

data/model/image.py

@@ -489,44 +489,33 @@ def find_or_create_derived_storage(source_image, transformation_name, preferred_
   new_storage = storage.create_v1_storage(preferred_location)
 
   try:
-    DerivedStorageForImage.create(source_image=source_image, derivative=new_storage,
-                                  transformation=trans, uniqueness_hash=uniqueness_hash)
+    derived = DerivedStorageForImage.create(source_image=source_image, derivative=new_storage,
+                                            transformation=trans, uniqueness_hash=uniqueness_hash)
   except IntegrityError:
     # Storage was created while this method executed. Just return the existing.
     new_storage.delete_instance(recursive=True)
     return find_derived_storage_for_image(source_image, transformation_name, varying_metadata)
 
-  return new_storage
+  return derived
 
 
 def find_derived_storage_for_image(source_image, transformation_name, varying_metadata=None):
   uniqueness_hash = _get_uniqueness_hash(varying_metadata)
 
   try:
-    found = (ImageStorage
+    found = (DerivedStorageForImage
              .select(ImageStorage, DerivedStorageForImage)
-             .join(DerivedStorageForImage)
+             .join(ImageStorage)
+             .switch(DerivedStorageForImage)
              .join(ImageStorageTransformation)
              .where(DerivedStorageForImage.source_image == source_image,
                     ImageStorageTransformation.name == transformation_name,
                     DerivedStorageForImage.uniqueness_hash == uniqueness_hash)
              .get())
-
-    found.locations = {placement.location.name for placement in found.imagestorageplacement_set}
     return found
-  except ImageStorage.DoesNotExist:
+  except DerivedStorageForImage.DoesNotExist:
     return None
 
 
-def delete_derived_storage_by_uuid(storage_uuid):
-  try:
-    image_storage = storage.get_storage_by_uuid(storage_uuid)
-  except InvalidImageException:
-    return
-
-  try:
-    DerivedStorageForImage.get(derivative=image_storage)
-  except DerivedStorageForImage.DoesNotExist:
-    return
-
-  image_storage.delete_instance(recursive=True)
+def delete_derived_storage(derived_storage):
+  derived_storage.derivative.delete_instance(recursive=True)

data/model/storage.py

@@ -254,6 +254,7 @@ def get_storage_by_uuid(storage_uuid):
 
 def get_layer_path(storage_record):
   """ Returns the path in the storage engine to the layer data referenced by the storage row. """
+  assert storage_record.cas_path is not None
   return get_layer_path_for_storage(storage_record.uuid, storage_record.cas_path,
                                     storage_record.content_checksum)
 
@@ -280,7 +281,8 @@ def lookup_repo_storages_by_content_checksum(repo, checksums):
     query_alias = 'q{0}'.format(counter)
     candidate_subq = (ImageStorage
                       .select(ImageStorage.id, ImageStorage.content_checksum,
-                              ImageStorage.image_size, ImageStorage.uuid)
+                              ImageStorage.image_size, ImageStorage.uuid, ImageStorage.cas_path,
+                              ImageStorage.uncompressed_size)
                       .join(Image)
                       .where(Image.repository == repo, ImageStorage.content_checksum == checksum)
                       .limit(1)
@@ -336,7 +338,7 @@ def get_storage_locations(uuid):
 
 def save_torrent_info(storage_object, piece_length, pieces):
   try:
-    TorrentInfo.create(storage=storage_object, piece_length=piece_length, pieces=pieces)
+    return TorrentInfo.create(storage=storage_object, piece_length=piece_length, pieces=pieces)
   except IntegrityError:
     # TorrentInfo already exists for this storage.
     pass

data/registry_model/datatype.py

@@ -30,6 +30,9 @@ def datatype(name, static_fields):
 
       raise AttributeError('Unknown field `%s`' % name)
 
+    def __repr__(self):
+      return '<%s> #%s' % (name, self._db_id)
+
   return DataType
 
 

data/registry_model/datatypes.py

@@ -1,5 +1,11 @@
+import hashlib
+
+from collections import namedtuple
 from enum import Enum, unique
 
+from cachetools import lru_cache
+
+from data import model
 from data.registry_model.datatype import datatype, requiresinput
 from image.docker.schema1 import DockerSchema1Manifest
 
@@ -13,6 +19,35 @@ class RepositoryReference(datatype('Repository', [])):
 
     return RepositoryReference(db_id=repo_obj.id)
 
+  @classmethod
+  def for_id(cls, repo_id):
+    return RepositoryReference(db_id=repo_id)
+
+  @property
+  @lru_cache(maxsize=1)
+  def _repository_obj(self):
+    return model.repository.lookup_repository(self._db_id)
+
+  @property
+  def namespace_name(self):
+    """ Returns the namespace name of this repository.
+    """
+    repository = self._repository_obj
+    if repository is None:
+      return None
+
+    return repository.namespace_user.username
+
+  @property
+  def name(self):
+    """ Returns the name of this repository.
+    """
+    repository = self._repository_obj
+    if repository is None:
+      return None
+
+    return repository.name
+
 
 class Label(datatype('Label', ['key', 'value', 'uuid', 'source_type_name', 'media_type_name'])):
   """ Label represents a label on a manifest. """
@@ -40,7 +75,15 @@ class Tag(datatype('Tag', ['name', 'reversion', 'manifest_digest', 'lifetime_sta
                lifetime_start_ts=repository_tag.lifetime_start_ts,
                lifetime_end_ts=repository_tag.lifetime_end_ts,
                manifest_digest=manifest_digest,
-               inputs=dict(legacy_image=legacy_image))
+               inputs=dict(legacy_image=legacy_image,
+                           repository=RepositoryReference.for_id(repository_tag.repository_id)))
+
+  @property
+  @requiresinput('repository')
+  def repository(self, repository):
+    """ Returns the repository under which this tag lives.
+    """
+    return repository
 
   @property
   @requiresinput('legacy_image')
@@ -124,3 +167,76 @@ class SecurityScanStatus(Enum):
   SCANNED = 'scanned'
   FAILED = 'failed'
   QUEUED = 'queued'
+
+
+class ManifestLayer(namedtuple('ManifestLayer', ['layer_info', 'blob'])):
+  """ Represents a single layer in a manifest. The `layer_info` data will be manifest-type specific,
+      but will have a few expected fields (such as `digest`). The `blob` represents the associated
+      blob for this layer, optionally with placements.
+  """
+
+  def estimated_size(self, estimate_multiplier):
+    """ Returns the estimated size of this layer. If the layers' blob has an uncompressed size,
+        it is used. Otherwise, the compressed_size field in the layer is multiplied by the
+        multiplier.
+    """
+    if self.blob.uncompressed_size:
+      return self.blob.uncompressed_size
+
+    return (self.layer_info.compressed_size or 0) * estimate_multiplier
+
+
+class Blob(datatype('Blob', ['uuid', 'digest', 'compressed_size', 'uncompressed_size',
+                             'uploading'])):
+  """ Blob represents a content-addressable piece of storage. """
+  @classmethod
+  def for_image_storage(cls, image_storage, storage_path, placements=None):
+    if image_storage is None:
+      return None
+
+    return Blob(db_id=image_storage.id,
+                uuid=image_storage.uuid,
+                inputs=dict(placements=placements, storage_path=storage_path),
+                digest=image_storage.content_checksum,
+                compressed_size=image_storage.image_size,
+                uncompressed_size=image_storage.uncompressed_size,
+                uploading=image_storage.uploading)
+
+  @property
+  @requiresinput('storage_path')
+  def storage_path(self, storage_path):
+    """ Returns the path of this blob in storage. """
+    # TODO: change this to take in the storage engine?
+    return storage_path
+
+  @property
+  @requiresinput('placements')
+  def placements(self, placements):
+    """ Returns all the storage placements at which the Blob can be found. """
+    return placements
+
+
+class DerivedImage(datatype('DerivedImage', ['verb', 'varying_metadata', 'blob'])):
+  """ DerivedImage represents an image derived from a manifest via some form of verb. """
+  @classmethod
+  def for_derived_storage(cls, derived, verb, varying_metadata, blob):
+    return DerivedImage(db_id=derived.id,
+                        verb=verb,
+                        varying_metadata=varying_metadata,
+                        blob=blob)
+
+  @property
+  def unique_id(self):
+    """ Returns a unique ID for this derived image. This call will consistently produce the same
+        unique ID across calls in the same code base.
+    """
+    return hashlib.sha256('%s:%s' % (self.verb, self._db_id)).hexdigest()
+
+
+class TorrentInfo(datatype('TorrentInfo', ['pieces', 'piece_length'])):
+  """ TorrentInfo represents information to pull a blob via torrent. """
+  @classmethod
+  def for_torrent_info(cls, torrent_info):
+    return TorrentInfo(db_id=torrent_info.id,
+                       pieces=torrent_info.pieces,
+                       piece_length=torrent_info.piece_length)

data/registry_model/interface.py

@@ -26,11 +26,12 @@ class RegistryDataInterface(object):
         or None if none. """
 
   @abstractmethod
-  def get_manifest_for_tag(self, tag):
+  def get_manifest_for_tag(self, tag, backfill_if_necessary=False):
     """ Returns the manifest associated with the given tag. """
 
   @abstractmethod
-  def lookup_manifest_by_digest(self, repository_ref, manifest_digest, allow_dead=False):
+  def lookup_manifest_by_digest(self, repository_ref, manifest_digest, allow_dead=False,
+                                include_legacy_image=False):
     """ Looks up the manifest with the given digest under the given repository and returns it
         or None if none. """
 
@@ -131,3 +132,73 @@ class RegistryDataInterface(object):
         NOTE: This method will only be necessary until we've completed the backfill, at which point
         it should be removed.
     """
+
+  @abstractmethod
+  def is_namespace_enabled(self, namespace_name):
+    """ Returns whether the given namespace exists and is enabled. """
+
+  @abstractmethod
+  def list_manifest_layers(self, manifest, include_placements=False):
+    """ Returns an *ordered list* of the layers found in the manifest, starting at the base and
+        working towards the leaf, including the associated Blob and its placements (if specified).
+        Returns None if the manifest could not be parsed and validated.
+    """
+
+  @abstractmethod
+  def lookup_derived_image(self, manifest, verb, varying_metadata=None, include_placements=False):
+    """
+    Looks up the derived image for the given manifest, verb and optional varying metadata and
+    returns it or None if none.
+    """
+
+  @abstractmethod
+  def lookup_or_create_derived_image(self, manifest, verb, storage_location, varying_metadata=None,
+                                     include_placements=False):
+    """
+    Looks up the derived image for the given maniest, verb and optional varying metadata
+    and returns it. If none exists, a new derived image is created.
+    """
+
+  @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.
+    """
+
+  @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.
+    """
+
+  @abstractmethod
+  def delete_derived_image(self, derived_image):
+    """
+    Deletes a derived image and all of its storage.
+    """
+
+  @abstractmethod
+  def set_derived_image_size(self, derived_image, compressed_size):
+    """
+    Sets the compressed size on the given derived image.
+    """
+
+  @abstractmethod
+  def get_torrent_info(self, blob):
+    """
+    Returns the torrent information associated with the given blob or None if none.
+    """
+
+  @abstractmethod
+  def set_torrent_info(self, blob, piece_length, pieces):
+    """
+    Sets the torrent infomation associated with the given blob to that specified.
+    """
+
+  @abstractmethod
+  def get_repo_blob_by_digest(self, repo_ref, blob_digest, include_placements=False):
+    """
+    Returns the blob in the repository with the given digest, if any or None if none. Note that
+    there may be multiple records in the same repository for the same blob digest, so the return
+    value of this function may change.
+    """

data/registry_model/registry_pre_oci_model.py

@@ -1,4 +1,5 @@
 # pylint: disable=protected-access
+import logging
 
 from collections import defaultdict
 
@@ -8,8 +9,12 @@ from data import database
 from data import model
 from data.registry_model.interface import RegistryDataInterface
 from data.registry_model.datatypes import (Tag, RepositoryReference, Manifest, LegacyImage, Label,
-                                           SecurityScanStatus)
-from image.docker.schema1 import DockerSchema1ManifestBuilder
+                                           SecurityScanStatus, ManifestLayer, Blob, DerivedImage,
+                                           TorrentInfo)
+from image.docker.schema1 import DockerSchema1ManifestBuilder, ManifestException
+
+
+logger = logging.getLogger(__name__)
 
 
 class PreOCIModel(RegistryDataInterface):
@@ -40,11 +45,14 @@ class PreOCIModel(RegistryDataInterface):
     repo = model.repository.get_repository(namespace_name, repo_name, kind_filter=kind_filter)
     return RepositoryReference.for_repo_obj(repo)
 
-  def get_manifest_for_tag(self, tag):
+  def get_manifest_for_tag(self, tag, backfill_if_necessary=False):
     """ Returns the manifest associated with the given tag. """
     try:
       tag_manifest = database.TagManifest.get(tag_id=tag._db_id)
     except database.TagManifest.DoesNotExist:
+      if backfill_if_necessary:
+        return self.backfill_manifest_for_tag(tag)
+
       return
 
     return Manifest.for_tag_manifest(tag_manifest)
@@ -173,6 +181,7 @@ class PreOCIModel(RegistryDataInterface):
     Returns the latest, *active* tag found in the repository, with the matching name
     or None if none.
     """
+    assert isinstance(tag_name, basestring)
     tag = model.tag.get_active_tag_for_repo(repository_ref._db_id, tag_name)
     if tag is None:
       return None
@@ -359,5 +368,204 @@ class PreOCIModel(RegistryDataInterface):
 
     return Manifest.for_tag_manifest(tag_manifest)
 
+  def is_namespace_enabled(self, namespace_name):
+    """ Returns whether the given namespace exists and is enabled. """
+    namespace = model.user.get_namespace_user(namespace_name)
+    return namespace is not None and namespace.enabled
+
+  def list_manifest_layers(self, manifest, include_placements=False):
+    """ Returns an *ordered list* of the layers found in the manifest, starting at the base and
+        working towards the leaf, including the associated Blob and its placements (if specified).
+        Returns None if the manifest could not be parsed and validated.
+    """
+    try:
+      parsed = manifest.get_parsed_manifest()
+    except ManifestException:
+      logger.exception('Could not parse and validate manifest `%s`', manifest._db_id)
+      return None
+
+    try:
+      tag_manifest = database.TagManifest.get(id=manifest._db_id)
+    except database.TagManifest.DoesNotExist:
+      logger.exception('Could not find tag manifest for manifest `%s`', manifest._db_id)
+      return None
+
+    repo = tag_manifest.tag.repository
+    blob_query = model.storage.lookup_repo_storages_by_content_checksum(repo, parsed.checksums)
+    storage_map = {blob.content_checksum: blob for blob in blob_query}
+
+    manifest_layers = []
+    for layer in parsed.layers:
+      digest_str = str(layer.digest)
+      if digest_str not in storage_map:
+        logger.error('Missing digest `%s` for manifest `%s`', layer.digest, manifest._db_id)
+        return None
+
+      image_storage = storage_map[digest_str]
+      assert image_storage.cas_path is not None
+
+      placements = None
+      if include_placements:
+        placements = list(model.storage.get_storage_locations(image_storage.uuid))
+
+      blob = Blob.for_image_storage(image_storage,
+                                    storage_path=model.storage.get_layer_path(image_storage),
+                                    placements=placements)
+      manifest_layers.append(ManifestLayer(layer, blob))
+
+    return manifest_layers
+
+  def lookup_derived_image(self, manifest, verb, varying_metadata=None, include_placements=False):
+    """
+    Looks up the derived image for the given manifest, verb and optional varying metadata and
+    returns it or None if none.
+    """
+    try:
+      tag_manifest = database.TagManifest.get(id=manifest._db_id)
+    except database.TagManifest.DoesNotExist:
+      logger.exception('Could not find tag manifest for manifest `%s`', manifest._db_id)
+      return None
+
+    repo_image = tag_manifest.tag.image
+    derived = model.image.find_derived_storage_for_image(repo_image, verb, varying_metadata)
+    return self._build_derived(derived, verb, varying_metadata, include_placements)
+
+  def lookup_or_create_derived_image(self, manifest, verb, storage_location, varying_metadata=None,
+                                     include_placements=False):
+    """
+    Looks up the derived image for the given maniest, verb and optional varying metadata
+    and returns it. If none exists, a new derived image is created.
+    """
+    try:
+      tag_manifest = database.TagManifest.get(id=manifest._db_id)
+    except database.TagManifest.DoesNotExist:
+      logger.exception('Could not find tag manifest for manifest `%s`', manifest._db_id)
+      return None
+
+    repo_image = tag_manifest.tag.image
+    derived = model.image.find_or_create_derived_storage(repo_image, verb, storage_location,
+                                                         varying_metadata)
+    return self._build_derived(derived, verb, varying_metadata, include_placements)
+
+  def _build_derived(self, derived, verb, varying_metadata, include_placements):
+    if derived is None:
+      return None
+
+    derived_storage = derived.derivative
+    placements = None
+    if include_placements:
+      placements = list(model.storage.get_storage_locations(derived_storage.uuid))
+
+    blob = Blob.for_image_storage(derived_storage,
+                                  storage_path=model.storage.get_layer_path(derived_storage),
+                                  placements=placements)
+
+    return DerivedImage.for_derived_storage(derived, verb, varying_metadata, blob)
+
+  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.
+    """
+    try:
+      derived_storage = database.DerivedStorageForImage.get(id=derived_image._db_id)
+    except database.DerivedStorageForImage.DoesNotExist:
+      return None
+
+    storage = derived_storage.derivative
+    signature_entry = model.storage.lookup_storage_signature(storage, signer_name)
+    if signature_entry is None:
+      return None
+
+    return signature_entry.signature
+
+  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.
+    """
+    try:
+      derived_storage = database.DerivedStorageForImage.get(id=derived_image._db_id)
+    except database.DerivedStorageForImage.DoesNotExist:
+      return None
+
+    storage = derived_storage.derivative
+    signature_entry = model.storage.find_or_create_storage_signature(storage, signer_name)
+    signature_entry.signature = signature
+    signature_entry.uploading = False
+    signature_entry.save()
+
+  def delete_derived_image(self, derived_image):
+    """
+    Deletes a derived image and all of its storage.
+    """
+    try:
+      derived_storage = database.DerivedStorageForImage.get(id=derived_image._db_id)
+    except database.DerivedStorageForImage.DoesNotExist:
+      return None
+
+    model.image.delete_derived_storage(derived_storage)
+
+  def set_derived_image_size(self, derived_image, compressed_size):
+    """
+    Sets the compressed size on the given derived image.
+    """
+    try:
+      derived_storage = database.DerivedStorageForImage.get(id=derived_image._db_id)
+    except database.DerivedStorageForImage.DoesNotExist:
+      return None
+
+    storage_entry = derived_storage.derivative
+    storage_entry.image_size = compressed_size
+    storage_entry.uploading = False
+    storage_entry.save()
+
+  def get_torrent_info(self, blob):
+    """
+    Returns the torrent information associated with the given blob or None if none.
+    """
+    try:
+      image_storage = database.ImageStorage.get(id=blob._db_id)
+    except database.ImageStorage.DoesNotExist:
+      return None
+
+    try:
+      torrent_info = model.storage.get_torrent_info(image_storage)
+    except model.TorrentInfoDoesNotExist:
+      return None
+
+    return TorrentInfo.for_torrent_info(torrent_info)
+
+  def set_torrent_info(self, blob, piece_length, pieces):
+    """
+    Sets the torrent infomation associated with the given blob to that specified.
+    """
+    try:
+      image_storage = database.ImageStorage.get(id=blob._db_id)
+    except database.ImageStorage.DoesNotExist:
+      return None
+
+    torrent_info = model.storage.save_torrent_info(image_storage, piece_length, pieces)
+    return TorrentInfo.for_torrent_info(torrent_info)
+
+  def get_repo_blob_by_digest(self, repo_ref, blob_digest, include_placements=False):
+    """
+    Returns the blob in the repository with the given digest, if any or None if none. Note that
+    there may be multiple records in the same repository for the same blob digest, so the return
+    value of this function may change.
+    """
+    try:
+      image_storage = model.blob.get_repository_blob_by_digest(repo_ref._db_id, blob_digest)
+    except model.BlobDoesNotExist:
+      return None
+
+    assert image_storage.cas_path is not None
+
+    placements = None
+    if include_placements:
+      placements = list(model.storage.get_storage_locations(image_storage.uuid))
+
+    return Blob.for_image_storage(image_storage,
+                                  storage_path=model.storage.get_layer_path(image_storage),
+                                  placements=placements)
+
 
 pre_oci_model = PreOCIModel()

data/registry_model/test/test_pre_oci_model.py

@@ -8,7 +8,8 @@ from app import docker_v2_signing_key
 from data import model
 from data.database import (TagManifestLabelMap, TagManifestToManifest, Manifest, ManifestBlob,
                            ManifestLegacyImage, ManifestLabel, TagManifest, RepositoryTag, Image,
-                           TagManifestLabel, TagManifest, TagManifestLabel)
+                           TagManifestLabel, TagManifest, TagManifestLabel, DerivedStorageForImage,
+                           TorrentInfo)
 from data.registry_model.registry_pre_oci_model import PreOCIModel
 from data.registry_model.datatypes import RepositoryReference
 
@@ -34,6 +35,8 @@ def test_find_matching_tag(names, expected, pre_oci_model):
     assert found is None
   else:
     assert found.name in expected
+    assert found.repository.namespace_name == 'devtable'
+    assert found.repository.name == 'simple'
 
 
 @pytest.mark.parametrize('repo_namespace, repo_name, expected', [
@@ -363,3 +366,160 @@ def test_backfill_manifest_for_tag(repo_namespace, repo_name, clear_rows, pre_oc
     parsed_manifest = manifest.get_parsed_manifest()
     assert parsed_manifest.leaf_layer_v1_image_id == legacy_image.docker_image_id
     assert parsed_manifest.parent_image_ids == {p.docker_image_id for p in legacy_image.parents}
+
+
+@pytest.mark.parametrize('repo_namespace, repo_name', [
+  ('devtable', 'simple'),
+  ('devtable', 'complex'),
+  ('devtable', 'history'),
+  ('buynlarge', 'orgrepo'),
+])
+def test_backfill_manifest_on_lookup(repo_namespace, repo_name, clear_rows, pre_oci_model):
+  repository_ref = pre_oci_model.lookup_repository(repo_namespace, repo_name)
+  tags = pre_oci_model.list_repository_tags(repository_ref)
+  assert tags
+
+  for tag in tags:
+    assert not tag.manifest_digest
+    assert not pre_oci_model.get_manifest_for_tag(tag)
+
+    manifest = pre_oci_model.get_manifest_for_tag(tag, backfill_if_necessary=True)
+    assert manifest
+
+    updated_tag = pre_oci_model.get_repo_tag(repository_ref, tag.name)
+    assert updated_tag.manifest_digest == manifest.digest
+
+
+@pytest.mark.parametrize('namespace, expect_enabled', [
+  ('devtable', True),
+  ('buynlarge', True),
+
+  ('disabled', False),
+])
+def test_is_namespace_enabled(namespace, expect_enabled, pre_oci_model):
+  assert pre_oci_model.is_namespace_enabled(namespace) == expect_enabled
+
+
+@pytest.mark.parametrize('repo_namespace, repo_name', [
+  ('devtable', 'simple'),
+  ('devtable', 'complex'),
+  ('devtable', 'history'),
+  ('buynlarge', 'orgrepo'),
+])
+def test_list_manifest_layers(repo_namespace, repo_name, pre_oci_model):
+  repository_ref = pre_oci_model.lookup_repository(repo_namespace, repo_name)
+  tags = pre_oci_model.list_repository_tags(repository_ref)
+  assert tags
+
+  for tag in tags:
+    manifest = pre_oci_model.get_manifest_for_tag(tag)
+    assert manifest
+
+    with assert_query_count(4):
+      layers = pre_oci_model.list_manifest_layers(manifest)
+      assert layers
+
+    layers = pre_oci_model.list_manifest_layers(manifest, include_placements=True)
+    assert layers
+
+    parsed_layers = list(manifest.get_parsed_manifest().layers)
+    assert len(layers) == len(parsed_layers)
+
+    for index, manifest_layer in enumerate(layers):
+      assert manifest_layer.layer_info == parsed_layers[index]
+      assert manifest_layer.blob.digest == str(parsed_layers[index].digest)
+      assert manifest_layer.blob.storage_path
+      assert manifest_layer.blob.placements
+
+      repo_blob = pre_oci_model.get_repo_blob_by_digest(repository_ref, manifest_layer.blob.digest)
+      assert repo_blob.digest == manifest_layer.blob.digest
+
+      assert manifest_layer.estimated_size(1) is not None
+
+
+def test_derived_image(pre_oci_model):
+  # Clear all existing derived storage.
+  DerivedStorageForImage.delete().execute()
+
+  repository_ref = pre_oci_model.lookup_repository('devtable', 'simple')
+  tag = pre_oci_model.get_repo_tag(repository_ref, 'latest')
+  manifest = pre_oci_model.get_manifest_for_tag(tag)
+
+  # Ensure the squashed image doesn't exist.
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {}) is None
+
+  # Create a new one.
+  squashed = pre_oci_model.lookup_or_create_derived_image(manifest, 'squash', 'local_us', {})
+  assert pre_oci_model.lookup_or_create_derived_image(manifest, 'squash', 'local_us', {}) == squashed
+  assert squashed.unique_id
+
+  # Check and set the size.
+  assert squashed.blob.compressed_size is None
+  pre_oci_model.set_derived_image_size(squashed, 1234)
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {}).blob.compressed_size == 1234
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {}).unique_id == squashed.unique_id
+
+  # Ensure its returned now.
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {}) == squashed
+
+  # Ensure different metadata results in a different derived image.
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {'foo': 'bar'}) is None
+
+  squashed_foo = pre_oci_model.lookup_or_create_derived_image(manifest, 'squash', 'local_us',
+                                                              {'foo': 'bar'})
+  assert squashed_foo != squashed
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {'foo': 'bar'}) == squashed_foo
+
+  assert squashed.unique_id != squashed_foo.unique_id
+
+  # Lookup with placements.
+  squashed = pre_oci_model.lookup_or_create_derived_image(manifest, 'squash', 'local_us', {},
+                                                          include_placements=True)
+  assert squashed.blob.placements
+
+  # Delete the derived image.
+  pre_oci_model.delete_derived_image(squashed)
+  assert pre_oci_model.lookup_derived_image(manifest, 'squash', {}) is None
+
+
+def test_derived_image_signatures(pre_oci_model):
+  repository_ref = pre_oci_model.lookup_repository('devtable', 'simple')
+  tag = pre_oci_model.get_repo_tag(repository_ref, 'latest')
+  manifest = pre_oci_model.get_manifest_for_tag(tag)
+
+  derived = pre_oci_model.lookup_derived_image(manifest, 'squash', {})
+  assert derived
+
+  signature = pre_oci_model.get_derived_image_signature(derived, 'gpg2')
+  assert signature is None
+
+  pre_oci_model.set_derived_image_signature(derived, 'gpg2', 'foo')
+  assert pre_oci_model.get_derived_image_signature(derived, 'gpg2') == 'foo'
+
+
+def test_torrent_info(pre_oci_model):
+  # Remove all existing info.
+  TorrentInfo.delete().execute()
+
+  repository_ref = pre_oci_model.lookup_repository('devtable', 'simple')
+  tag = pre_oci_model.get_repo_tag(repository_ref, 'latest')
+  manifest = pre_oci_model.get_manifest_for_tag(tag)
+
+  layers = pre_oci_model.list_manifest_layers(manifest)
+  assert layers
+
+  assert pre_oci_model.get_torrent_info(layers[0].blob) is None
+  pre_oci_model.set_torrent_info(layers[0].blob, 2, 'foo')
+
+  torrent_info = pre_oci_model.get_torrent_info(layers[0].blob)
+  assert torrent_info is not None
+  assert torrent_info.piece_length == 2
+  assert torrent_info.pieces == 'foo'
+
+  # Try setting it again. Nothing should happen.
+  pre_oci_model.set_torrent_info(layers[0].blob, 3, 'bar')
+
+  torrent_info = pre_oci_model.get_torrent_info(layers[0].blob)
+  assert torrent_info is not None
+  assert torrent_info.piece_length == 2
+  assert torrent_info.pieces == 'foo'

endpoints/verbs/MAINTAINERS

@@ -1 +0,0 @@
-Joseph Schorr <joseph.schorr@coreos.com> (@josephschorr)

endpoints/verbs/__init__.py

@@ -10,13 +10,14 @@ from auth.auth_context import get_authenticated_user
 from auth.decorators import process_auth
 from auth.permissions import ReadRepositoryPermission
 from data import database
+from data import model
+from data.registry_model import registry_model
 from endpoints.decorators import anon_protect, anon_allowed, route_show_if, parse_repository_name
-from endpoints.verbs.models_pre_oci import pre_oci_model as model
 from endpoints.v2.blob import BLOB_DIGEST_ROUTE
 from image.appc import AppCImageFormatter
 from image.docker.squashed import SquashedDockerImageFormatter
 from storage import Storage
-from util.audit import track_and_log
+from util.audit import track_and_log, wrap_repository
 from util.http import exact_abort
 from util.registry.filelike import wrap_with_handler
 from util.registry.queuefile import QueueFile
@@ -40,7 +41,7 @@ class VerbReporter(TarLayerFormatterReporter):
     metric_queue.verb_action_passes.Inc(labelvalues=[self.kind, pass_count])
 
 
-def _open_stream(formatter, repo_image, tag, derived_image_id, handlers, reporter):
+def _open_stream(formatter, tag, manifest, derived_image_id, handlers, reporter):
   """
   This method generates a stream of data which will be replicated and read from the queue files.
   This method runs in a separate process.
@@ -48,29 +49,25 @@ def _open_stream(formatter, repo_image, tag, derived_image_id, handlers, reporte
   # For performance reasons, we load the full image list here, cache it, then disconnect from
   # the database.
   with database.UseThenDisconnect(app.config):
-    image_list = list(model.get_manifest_layers_with_blobs(repo_image))
+    layers = registry_model.list_manifest_layers(manifest, include_placements=True)
 
-  def get_next_image():
-    for current_image in image_list:
-      yield current_image
-
-  def image_stream_getter(store, current_image):
+  def image_stream_getter(store, blob):
     def get_stream_for_storage():
-      current_image_path = model.get_blob_path(current_image.blob)
-      current_image_stream = store.stream_read_file(current_image.blob.locations,
-                                                    current_image_path)
-
-      logger.debug('Returning image layer %s: %s', current_image.image_id, current_image_path)
+      current_image_stream = store.stream_read_file(blob.placements, blob.storage_path)
+      logger.debug('Returning blob %s: %s', blob.digest, blob.storage_path)
       return current_image_stream
     return get_stream_for_storage
 
   def tar_stream_getter_iterator():
     # Re-Initialize the storage engine because some may not respond well to forking (e.g. S3)
     store = Storage(app, metric_queue, config_provider=config_provider, ip_resolver=ip_resolver)
-    for current_image in image_list:
-      yield image_stream_getter(store, current_image)
 
-  stream = formatter.build_stream(repo_image, tag, derived_image_id, get_next_image,
+    # Note: We reverse because we have to start at the leaf layer and move upward,
+    # as per the spec for the formatters.
+    for layer in reversed(layers):
+      yield image_stream_getter(store, layer.blob)
+
+  stream = formatter.build_stream(tag, manifest, derived_image_id, layers,
                                   tar_stream_getter_iterator, reporter=reporter)
 
   for handler_fn in handlers:
@@ -86,14 +83,14 @@ def _sign_derived_image(verb, derived_image, queue_file):
   try:
     signature = signer.detached_sign(queue_file)
   except:
-    logger.exception('Exception when signing %s deriving image %s', verb, derived_image.ref)
+    logger.exception('Exception when signing %s deriving image %s', verb, derived_image)
     return
 
   # Setup the database (since this is a new process) and then disconnect immediately
   # once the operation completes.
   if not queue_file.raised_exception:
     with database.UseThenDisconnect(app.config):
-      model.set_derived_image_signature(derived_image, signer.name, signature)
+      registry_model.set_derived_image_signature(derived_image, signer.name, signature)
 
 
 def _write_derived_image_to_storage(verb, derived_image, queue_file):
@@ -102,17 +99,16 @@ def _write_derived_image_to_storage(verb, derived_image, queue_file):
   """
 
   def handle_exception(ex):
-    logger.debug('Exception when building %s derived image %s: %s', verb, derived_image.ref, ex)
+    logger.debug('Exception when building %s derived image %s: %s', verb, derived_image, ex)
 
     with database.UseThenDisconnect(app.config):
-      model.delete_derived_image(derived_image)
+      registry_model.delete_derived_image(derived_image)
 
   queue_file.add_exception_handler(handle_exception)
 
   # Re-Initialize the storage engine because some may not respond well to forking (e.g. S3)
   store = Storage(app, metric_queue, config_provider=config_provider, ip_resolver=ip_resolver)
-  image_path = model.get_blob_path(derived_image.blob)
-  store.stream_write(derived_image.blob.locations, image_path, queue_file)
+  store.stream_write(derived_image.blob.placements, derived_image.blob.storage_path, queue_file)
   queue_file.close()
 
 
@@ -121,17 +117,16 @@ def _torrent_for_blob(blob, is_public):
       with an error if the state is not valid (e.g. non-public, non-user request).
   """
   # Make sure the storage has a size.
-  if not blob.size:
+  if not blob.compressed_size:
     abort(404)
 
   # Lookup the torrent information for the storage.
-  torrent_info = model.get_torrent_info(blob)
+  torrent_info = registry_model.get_torrent_info(blob)
   if torrent_info is None:
     abort(404)
 
   # Lookup the webseed path for the storage.
-  path = model.get_blob_path(blob)
-  webseed = storage.get_direct_download_url(blob.locations, path,
+  webseed = storage.get_direct_download_url(blob.placements, blob.storage_path,
                                             expires_in=app.config['BITTORRENT_WEBSEED_LIFETIME'])
   if webseed is None:
     # We cannot support webseeds for storages that cannot provide direct downloads.
@@ -151,8 +146,8 @@ def _torrent_for_blob(blob, is_public):
     name = per_user_torrent_filename(torrent_config, user.uuid, blob.uuid)
 
   # Return the torrent file.
-  torrent_file = make_torrent(torrent_config, name, webseed, blob.size, torrent_info.piece_length,
-                              torrent_info.pieces)
+  torrent_file = make_torrent(torrent_config, name, webseed, blob.compressed_size,
+                              torrent_info.piece_length, torrent_info.pieces)
 
   headers = {
     'Content-Type': 'application/x-bittorrent',
@@ -161,7 +156,7 @@ def _torrent_for_blob(blob, is_public):
   return make_response(torrent_file, 200, headers)
 
 
-def _torrent_repo_verb(repo_image, tag, verb, **kwargs):
+def _torrent_repo_verb(repository, tag, manifest, verb, **kwargs):
   """ Handles returning a torrent for the given verb on the given image and tag. """
   if not features.BITTORRENT:
     # Torrent feature is not enabled.
@@ -169,60 +164,73 @@ def _torrent_repo_verb(repo_image, tag, verb, **kwargs):
 
   # Lookup an *existing* derived storage for the verb. If the verb's image storage doesn't exist,
   # we cannot create it here, so we 406.
-  derived_image = model.lookup_derived_image(repo_image, verb, varying_metadata={'tag': tag})
+  derived_image = registry_model.lookup_derived_image(manifest, verb,
+                                                      varying_metadata={'tag': tag.name},
+                                                      include_placements=True)
   if derived_image is None:
     abort(406)
 
   # Return the torrent.
-  repo = model.get_repository(repo_image.repository.namespace_name, repo_image.repository.name)
-  repo_is_public = repo is not None and repo.is_public
-  torrent = _torrent_for_blob(derived_image.blob, repo_is_public)
+  torrent = _torrent_for_blob(derived_image.blob, model.repository.is_repository_public(repository))
 
   # Log the action.
-  track_and_log('repo_verb', repo_image.repository, tag=tag, verb=verb, torrent=True, **kwargs)
+  track_and_log('repo_verb', wrap_repository(repository), tag=tag.name, verb=verb, torrent=True,
+                **kwargs)
   return torrent
 
 
-def _verify_repo_verb(_, namespace, repo_name, tag, verb, checker=None):
+def _verify_repo_verb(_, namespace, repo_name, tag_name, verb, checker=None):
   permission = ReadRepositoryPermission(namespace, repo_name)
-  repo = model.get_repository(namespace, repo_name)
-  repo_is_public = repo is not None and repo.is_public
+  repo = model.repository.get_repository(namespace, repo_name)
+  repo_is_public = repo is not None and model.repository.is_repository_public(repo)
   if not permission.can() and not repo_is_public:
     logger.debug('No permission to read repository %s/%s for user %s with verb %s', namespace,
                  repo_name, get_authenticated_user(), verb)
     abort(403)
 
-  # Lookup the requested tag.
-  tag_image = model.get_tag_image(namespace, repo_name, tag)
-  if tag_image is None:
-    logger.debug('Tag %s does not exist in repository %s/%s for user %s', tag, namespace, repo_name,
-                 get_authenticated_user())
-    abort(404)
-
-  if repo is not None and repo.kind != 'image':
+  if repo is not None and repo.kind.name != 'image':
     logger.debug('Repository %s/%s for user %s is not an image repo', namespace, repo_name,
                  get_authenticated_user())
     abort(405)
 
   # Make sure the repo's namespace isn't disabled.
-  if not model.is_namespace_enabled(namespace):
+  if not registry_model.is_namespace_enabled(namespace):
     abort(400)
 
+  # Lookup the requested tag.
+  repo_ref = registry_model.lookup_repository(namespace, repo_name)
+  tag = registry_model.get_repo_tag(repo_ref, tag_name)
+  if tag is None:
+    logger.debug('Tag %s does not exist in repository %s/%s for user %s', tag, namespace, repo_name,
+                 get_authenticated_user())
+    abort(404)
+
+  # Get its associated manifest.
+  manifest = registry_model.get_manifest_for_tag(tag, backfill_if_necessary=True)
+  if manifest is None:
+    logger.debug('Could not get manifest on %s/%s:%s::%s', namespace, repo_name, tag.name, verb)
+    abort(404)
+
   # If there is a data checker, call it first.
   if checker is not None:
-    if not checker(tag_image):
-      logger.debug('Check mismatch on %s/%s:%s, verb %s', namespace, repo_name, tag, verb)
+    if not checker(tag, manifest):
+      logger.debug('Check mismatch on %s/%s:%s, verb %s', namespace, repo_name, tag.name, verb)
       abort(404)
 
-  return tag_image
+  # Preload the tag's repository information, so it gets cached.
+  assert tag.repository.namespace_name
+  assert tag.repository.name
+
+  return tag, manifest
 
 
-def _repo_verb_signature(namespace, repository, tag, verb, checker=None, **kwargs):
-  # Verify that the image exists and that we have access to it.
-  repo_image = _verify_repo_verb(storage, namespace, repository, tag, verb, checker)
+def _repo_verb_signature(namespace, repository, tag_name, verb, checker=None, **kwargs):
+  # Verify that the tag exists and that we have access to it.
+  tag, manifest = _verify_repo_verb(storage, namespace, repository, tag_name, verb, checker)
 
-  # derived_image the derived image storage for the verb.
-  derived_image = model.lookup_derived_image(repo_image, verb, varying_metadata={'tag': tag})
+  # Find the derived image storage for the verb.
+  derived_image = registry_model.lookup_derived_image(manifest, verb,
+                                                      varying_metadata={'tag': tag.name})
   if derived_image is None or derived_image.blob.uploading:
     return make_response('', 202)
 
@@ -231,7 +239,7 @@ def _repo_verb_signature(namespace, repository, tag, verb, checker=None, **kwarg
     abort(404)
 
   # Lookup the signature for the verb.
-  signature_value = model.get_derived_image_signature(derived_image, signer.name)
+  signature_value = registry_model.get_derived_image_signature(derived_image, signer.name)
   if signature_value is None:
     abort(404)
 
@@ -239,53 +247,57 @@ def _repo_verb_signature(namespace, repository, tag, verb, checker=None, **kwarg
   return make_response(signature_value)
 
 
-def _repo_verb(namespace, repository, tag, verb, formatter, sign=False, checker=None, **kwargs):
+def _repo_verb(namespace, repository, tag_name, verb, formatter, sign=False, checker=None,
+               **kwargs):
   # Verify that the image exists and that we have access to it.
   logger.debug('Verifying repo verb %s for repository %s/%s with user %s with mimetype %s',
                verb, namespace, repository, get_authenticated_user(), request.accept_mimetypes.best)
-  repo_image = _verify_repo_verb(storage, namespace, repository, tag, verb, checker)
+  tag, manifest = _verify_repo_verb(storage, namespace, repository, tag_name, verb, checker)
+
+  # Load the repository for later.
+  repo = model.repository.get_repository(namespace, repository)
+  if repo is None:
+    abort(404)
 
   # Check for torrent. If found, we return a torrent for the repo verb image (if the derived
   # image already exists).
   if request.accept_mimetypes.best == 'application/x-bittorrent':
     metric_queue.repository_pull.Inc(labelvalues=[namespace, repository, verb + '+torrent', True])
-    return _torrent_repo_verb(repo_image, tag, verb, **kwargs)
+    return _torrent_repo_verb(repo, tag, manifest, verb, **kwargs)
 
   # Log the action.
-  track_and_log('repo_verb', repo_image.repository, tag=tag, verb=verb, **kwargs)
+  track_and_log('repo_verb', wrap_repository(repo), tag=tag.name, verb=verb, **kwargs)
   metric_queue.repository_pull.Inc(labelvalues=[namespace, repository, verb, True])
 
   # Lookup/create the derived image for the verb and repo image.
-  derived_image = model.lookup_or_create_derived_image(
-    repo_image, verb, storage.preferred_locations[0], varying_metadata={'tag': tag})
+  derived_image = registry_model.lookup_or_create_derived_image(
+    manifest, verb, storage.preferred_locations[0], varying_metadata={'tag': tag.name},
+    include_placements=True)
   if not derived_image.blob.uploading:
-    logger.debug('Derived %s image %s exists in storage', verb, derived_image.ref)
-    derived_layer_path = model.get_blob_path(derived_image.blob)
+    logger.debug('Derived %s image %s exists in storage', verb, derived_image)
     is_head_request = request.method == 'HEAD'
-    download_url = storage.get_direct_download_url(derived_image.blob.locations,
-                                                   derived_layer_path, head=is_head_request)
+    download_url = storage.get_direct_download_url(derived_image.blob.placements,
+                                                   derived_image.blob.storage_path,
+                                                   head=is_head_request)
     if download_url:
-      logger.debug('Redirecting to download URL for derived %s image %s', verb, derived_image.ref)
+      logger.debug('Redirecting to download URL for derived %s image %s', verb, derived_image)
       return redirect(download_url)
 
     # Close the database handle here for this process before we send the long download.
     database.close_db_filter(None)
 
-    logger.debug('Sending cached derived %s image %s', verb, derived_image.ref)
+    logger.debug('Sending cached derived %s image %s', verb, derived_image)
     return send_file(
-      storage.stream_read_file(derived_image.blob.locations, derived_layer_path),
+      storage.stream_read_file(derived_image.blob.placements, derived_image.blob.storage_path),
       mimetype=LAYER_MIMETYPE)
 
-  logger.debug('Building and returning derived %s image %s', verb, derived_image.ref)
+  logger.debug('Building and returning derived %s image %s', verb, derived_image)
 
   # Close the database connection before any process forking occurs. This is important because
   # the Postgres driver does not react kindly to forking, so we need to make sure it is closed
   # so that each process will get its own unique connection.
   database.close_db_filter(None)
 
-  # Calculate a derived image ID.
-  derived_image_id = hashlib.sha256(repo_image.image_id + ':' + verb).hexdigest()
-
   def _cleanup():
     # Close any existing DB connection once the process has exited.
     database.close_db_filter(None)
@@ -294,15 +306,15 @@ def _repo_verb(namespace, repository, tag, verb, formatter, sign=False, checker=
 
   def _store_metadata_and_cleanup():
     with database.UseThenDisconnect(app.config):
-      model.set_torrent_info(derived_image.blob, app.config['BITTORRENT_PIECE_SIZE'],
-                             hasher.final_piece_hashes())
-      model.set_blob_size(derived_image.blob, hasher.hashed_bytes)
+      registry_model.set_torrent_info(derived_image.blob, app.config['BITTORRENT_PIECE_SIZE'],
+                                      hasher.final_piece_hashes())
+      registry_model.set_derived_image_size(derived_image, hasher.hashed_bytes)
 
   # Create a queue process to generate the data. The queue files will read from the process
   # and send the results to the client and storage.
   handlers = [hasher.update]
   reporter = VerbReporter(verb)
-  args = (formatter, repo_image, tag, derived_image_id, handlers, reporter)
+  args = (formatter, tag, manifest, derived_image.unique_id, handlers, reporter)
   queue_process = QueueProcess(
     _open_stream,
     8 * 1024,
@@ -337,8 +349,8 @@ def _repo_verb(namespace, repository, tag, verb, formatter, sign=False, checker=
 
 
 def os_arch_checker(os, arch):
-  def checker(repo_image):
-    image_json = repo_image.compat_metadata
+  def checker(tag, manifest):
+    image_json = manifest.leaf_layer.v1_metadata
 
     # Verify the architecture and os.
     operating_system = image_json.get('os', 'linux')
@@ -394,8 +406,8 @@ def get_squashed_tag(namespace, repository, tag):
 @process_auth
 @parse_repository_name()
 def get_tag_torrent(namespace_name, repo_name, digest):
-  repo = model.get_repository(namespace_name, repo_name)
-  repo_is_public = repo is not None and repo.is_public
+  repo = model.repository.get_repository(namespace_name, repo_name)
+  repo_is_public = repo is not None and model.repository.is_repository_public(repo)
 
   permission = ReadRepositoryPermission(namespace_name, repo_name)
   if not permission.can() and not repo_is_public:
@@ -406,10 +418,14 @@ def get_tag_torrent(namespace_name, repo_name, digest):
     # We can not generate a private torrent cluster without a user uuid (e.g. token auth)
     abort(403)
 
-  if repo is not None and repo.kind != 'image':
+  if repo is not None and repo.kind.name != 'image':
     abort(405)
 
-  blob = model.get_repo_blob_by_digest(namespace_name, repo_name, digest)
+  repo_ref = registry_model.lookup_repository(namespace_name, repo_name)
+  if repo_ref is None:
+    abort(404)
+
+  blob = registry_model.get_repo_blob_by_digest(repo_ref, digest, include_placements=True)
   if blob is None:
     abort(404)
 

endpoints/verbs/models_interface.py

@@ -1,159 +0,0 @@
-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

endpoints/verbs/models_pre_oci.py

@@ -1,205 +0,0 @@
-import json
-
-from data import model
-from image.docker.v1 import DockerV1Metadata
-
-from endpoints.verbs.models_interface import (
-  Blob,
-  DerivedImage,
-  ImageWithBlob,
-  Repository,
-  RepositoryReference,
-  TorrentInfo,
-  VerbsDataInterface,)
-
-
-class PreOCIModel(VerbsDataInterface):
-  """
-  PreOCIModel implements the data model for the registry's custom HTTP verbs using a database schema
-  before it was changed to support the OCI specification.
-  """
-
-  def get_repository(self, namespace_name, repo_name):
-    repo = model.repository.get_repository(namespace_name, repo_name)
-    if repo is None:
-      return None
-
-    return _repository_for_repo(repo)
-
-  def get_manifest_layers_with_blobs(self, repo_image):
-    repo_image_record = model.image.get_image_by_id(
-      repo_image.repository.namespace_name, repo_image.repository.name, repo_image.image_id)
-
-    parents = model.image.get_parent_images(
-      repo_image.repository.namespace_name, repo_image.repository.name, repo_image_record)
-    placements_map = model.image.get_placements_for_images(parents)
-
-    yield repo_image
-
-    for parent in parents:
-      metadata = {}
-      try:
-        metadata = json.loads(parent.v1_json_metadata)
-      except ValueError:
-        pass
-
-      locations = [placement.location.name for placement in placements_map[parent.storage.id]]
-      yield ImageWithBlob(
-        image_id=parent.docker_image_id,
-        blob=_blob(parent.storage, locations=locations),
-        repository=repo_image.repository,
-        compat_metadata=metadata,
-        v1_metadata=_docker_v1_metadata(repo_image.repository.namespace_name,
-                                        repo_image.repository.name, parent),
-        internal_db_id=parent.id,)
-
-  def get_derived_image_signature(self, derived_image, signer_name):
-    storage = model.storage.get_storage_by_uuid(derived_image.blob.uuid)
-    signature_entry = model.storage.lookup_storage_signature(storage, signer_name)
-    if signature_entry is None:
-      return None
-
-    return signature_entry.signature
-
-  def set_derived_image_signature(self, derived_image, signer_name, signature):
-    storage = model.storage.get_storage_by_uuid(derived_image.blob.uuid)
-    signature_entry = model.storage.find_or_create_storage_signature(storage, signer_name)
-    signature_entry.signature = signature
-    signature_entry.uploading = False
-    signature_entry.save()
-
-  def delete_derived_image(self, derived_image):
-    model.image.delete_derived_storage_by_uuid(derived_image.blob.uuid)
-
-  def set_blob_size(self, blob, size):
-    storage_entry = model.storage.get_storage_by_uuid(blob.uuid)
-    storage_entry.image_size = size
-    storage_entry.uploading = False
-    storage_entry.save()
-
-  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 get_repo_blob_by_digest(self, namespace_name, repo_name, digest):
-    try:
-      blob_record = model.blob.get_repo_blob_by_digest(namespace_name, repo_name, digest)
-    except model.BlobDoesNotExist:
-      return None
-
-    return _blob(blob_record)
-
-  def get_torrent_info(self, blob):
-    blob_record = model.storage.get_storage_by_uuid(blob.uuid)
-
-    try:
-      torrent_info = model.storage.get_torrent_info(blob_record)
-    except model.TorrentInfoDoesNotExist:
-      return None
-
-    return TorrentInfo(
-      pieces=torrent_info.pieces,
-      piece_length=torrent_info.piece_length,)
-
-  def set_torrent_info(self, blob, piece_length, pieces):
-    blob_record = model.storage.get_storage_by_uuid(blob.uuid)
-    model.storage.save_torrent_info(blob_record, piece_length, pieces)
-
-  def lookup_derived_image(self, repo_image, verb, varying_metadata=None):
-    blob_record = model.image.find_derived_storage_for_image(repo_image.internal_db_id, verb,
-                                                             varying_metadata)
-    if blob_record is None:
-      return None
-
-    return _derived_image(blob_record, repo_image)
-
-  def lookup_or_create_derived_image(self, repo_image, verb, location, varying_metadata=None):
-    blob_record = model.image.find_or_create_derived_storage(repo_image.internal_db_id, verb,
-                                                             location, varying_metadata)
-    return _derived_image(blob_record, repo_image)
-
-  def get_tag_image(self, namespace_name, repo_name, tag_name):
-    try:
-      found = model.tag.get_tag_image(namespace_name, repo_name, tag_name, include_storage=True)
-    except model.DataModelException:
-      return None
-
-    metadata = {}
-    try:
-      metadata = json.loads(found.v1_json_metadata)
-    except ValueError:
-      pass
-
-    return ImageWithBlob(
-      image_id=found.docker_image_id,
-      blob=_blob(found.storage),
-      repository=RepositoryReference(
-        namespace_name=namespace_name,
-        name=repo_name,
-        id=found.repository_id,),
-      compat_metadata=metadata,
-      v1_metadata=_docker_v1_metadata(namespace_name, repo_name, found),
-      internal_db_id=found.id,)
-
-  def is_namespace_enabled(self, namespace_name):
-    namespace = model.user.get_namespace_user(namespace_name)
-    return namespace is not None and namespace.enabled
-
-
-pre_oci_model = PreOCIModel()
-
-
-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,
-    compat_json=repo_image.v1_json_metadata,
-    created=repo_image.created,
-    comment=repo_image.comment,
-    command=repo_image.command,
-
-    # Note: These are not needed in verbs and are expensive to load, so we just skip them.
-    content_checksum=None,
-    parent_image_id=None,)
-
-
-def _derived_image(blob_record, repo_image):
-  """
-  Returns a DerivedImage object for the given Pre-OCI data model blob and repo_image instance.
-  """
-  return DerivedImage(
-    ref=repo_image.internal_db_id,
-    blob=_blob(blob_record),
-    internal_source_image_db_id=repo_image.internal_db_id,)
-
-
-def _blob(blob_record, locations=None):
-  """
-  Returns a Blob object for the given Pre-OCI data model blob instance.
-  """
-  locations = locations or model.storage.get_storage_locations(blob_record.uuid)
-  return Blob(
-    uuid=blob_record.uuid,
-    size=blob_record.image_size,
-    uncompressed_size=blob_record.uncompressed_size,
-    uploading=blob_record.uploading,
-    locations=locations,)
-
-
-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),
-    kind=model.repository.get_repo_kind_name(repo),)

image/appc/__init__.py

@@ -18,10 +18,10 @@ class AppCImageFormatter(TarImageFormatter):
   Image formatter which produces an tarball according to the AppC specification.
   """
 
-  def stream_generator(self, repo_image, tag, synthetic_image_id, get_image_iterator,
+  def stream_generator(self, tag, manifest, synthetic_image_id, layer_iterator,
                        tar_stream_getter_iterator, reporter=None):
     image_mtime = 0
-    created = next(get_image_iterator()).v1_metadata.created
+    created = manifest.get_parsed_manifest().created_datetime
     if created is not None:
       image_mtime = calendar.timegm(created.utctimetuple())
 
@@ -30,12 +30,12 @@ class AppCImageFormatter(TarImageFormatter):
     #   rootfs - The root file system
 
     # Yield the manifest.
-    manifest = json.dumps(DockerV1ToACIManifestTranslator.build_manifest(
-      repo_image,
+    aci_manifest = json.dumps(DockerV1ToACIManifestTranslator.build_manifest(
       tag,
+      manifest,
       synthetic_image_id
     ))
-    yield self.tar_file('manifest', manifest, mtime=image_mtime)
+    yield self.tar_file('manifest', aci_manifest, mtime=image_mtime)
 
     # Yield the merged layer dtaa.
     yield self.tar_folder('rootfs', mtime=image_mtime)
@@ -170,16 +170,16 @@ class DockerV1ToACIManifestTranslator(object):
     return volumes
 
   @staticmethod
-  def build_manifest(repo_image, tag, synthetic_image_id):
+  def build_manifest(tag, manifest, synthetic_image_id):
     """ Builds an ACI manifest of an existing repository image. """
-    docker_layer_data = JSONPathDict(repo_image.compat_metadata)
+    docker_layer_data = JSONPathDict(manifest.leaf_layer.v1_metadata)
     config = docker_layer_data['config'] or JSONPathDict({})
 
-    namespace = repo_image.repository.namespace_name
-    repo_name = repo_image.repository.name
+    namespace = tag.repository.namespace_name
+    repo_name = tag.repository.name
     source_url = "%s://%s/%s/%s:%s" % (app.config['PREFERRED_URL_SCHEME'],
                                        app.config['SERVER_HOSTNAME'],
-                                       namespace, repo_name, tag)
+                                       namespace, repo_name, tag.name)
 
     # ACI requires that the execution command be absolutely referenced. Therefore, if we find
     # a relative command, we give it as an argument to /bin/sh to resolve and execute for us.

image/appc/test/test_appc.py

@@ -1,7 +1,6 @@
 import pytest
 
 from image.appc import DockerV1ToACIManifestTranslator
-from endpoints.verbs.models_interface import RepositoryReference, ImageWithBlob
 from util.dict_wrappers import JSONPathDict
 
 
@@ -74,31 +73,6 @@ EXAMPLE_MANIFEST_OBJ = {
   "throwaway": True
 }
 
-
-@pytest.fixture
-def repo_image():
-  repo_ref = RepositoryReference(1, 'simple', 'devtable')
-  return ImageWithBlob(1, None, EXAMPLE_MANIFEST_OBJ, repo_ref, 1, None)
-
-
-def test_port_conversion(repo_image):
-  output = DockerV1ToACIManifestTranslator.build_manifest(repo_image, 'v3.0.15', 'abcdef')
-  ports = output['app']['ports']
-  ports.sort()
-  assert {'name':'port-2379', 'port':2379, 'protocol':'tcp'} == ports[0]
-  assert {'name':'port-2380', 'port':2380, 'protocol':'tcp'} == ports[1]
-
-
-def test_legacy_port_conversion(repo_image):
-  del repo_image.compat_metadata['config']['ExposedPorts']
-  repo_image.compat_metadata['config']['ports'] = ['8080', '8081']
-  output = DockerV1ToACIManifestTranslator.build_manifest(repo_image, 'v3.0.15', 'abcdef')
-  ports = output['app']['ports']
-  ports.sort()
-  assert {'name':'port-8080', 'port':8080, 'protocol':'tcp'} == ports[0]
-  assert {'name':'port-8081', 'port':8081, 'protocol':'tcp'} == ports[1]
-
-
 @pytest.mark.parametrize("vcfg,expected", [
   ({'Volumes': None}, []),
   ({'Volumes': {}}, []),

image/common.py

@@ -7,17 +7,17 @@ class TarImageFormatter(object):
   Base class for classes which produce a tar containing image and layer data.
   """
 
-  def build_stream(self, repo_image, tag, synthetic_image_id, get_image_iterator,
+  def build_stream(self, tag, manifest, synthetic_image_id, layer_iterator,
                    tar_stream_getter_iterator, reporter=None):
     """
     Builds and streams a synthetic .tar.gz that represents the formatted tar created by this class's
     implementation.
     """
-    return GzipWrap(self.stream_generator(repo_image, tag, synthetic_image_id, get_image_iterator,
+    return GzipWrap(self.stream_generator(tag, manifest, synthetic_image_id, layer_iterator,
                                           tar_stream_getter_iterator, reporter=reporter))
 
-  def stream_generator(self, repo_image, tag, synthetic_image_id, get_image_iterator,
-                       tar_stream_getter_iterator):
+  def stream_generator(self, tag, manifest, synthetic_image_id, layer_iterator,
+                       tar_stream_getter_iterator, reporter=None):
     raise NotImplementedError
 
   def tar_file(self, name, contents, mtime=None):

image/docker/schema1.py

@@ -11,6 +11,8 @@ import logging
 from collections import namedtuple, OrderedDict
 from datetime import datetime
 
+import dateutil.parser
+
 from jsonschema import validate as validate_schema, ValidationError
 
 from jwkest.jws import SIGNER_ALGS, keyrep
@@ -70,7 +72,8 @@ class InvalidSchema1Signature(ManifestException):
   pass
 
 
-class Schema1Layer(namedtuple('Schema1Layer', ['digest', 'v1_metadata', 'raw_v1_metadata'])):
+class Schema1Layer(namedtuple('Schema1Layer', ['digest', 'v1_metadata', 'raw_v1_metadata',
+                                               'compressed_size'])):
   """
   Represents all of the data about an individual layer in a given Manifest.
   This is the union of the fsLayers (digest) and the history entries (v1_compatibility).
@@ -268,6 +271,18 @@ class DockerSchema1Manifest(ManifestInterface):
   def leaf_layer(self):
     return self.layers[-1]
 
+  @property
+  def created_datetime(self):
+    created_datetime_str = self.leaf_layer.v1_metadata.created
+    if created_datetime_str is None:
+      return None
+
+    try:
+      return dateutil.parser.parse(created_datetime_str).replace(tzinfo=None)
+    except:
+      # parse raises different exceptions, so we cannot use a specific kind of handler here.
+      return None
+
   @property
   def layers(self):
     if self._layers is None:
@@ -305,7 +320,9 @@ class DockerSchema1Manifest(ManifestInterface):
       extracted = Schema1V1Metadata(v1_metadata['id'], v1_metadata.get('parent'),
                                     v1_metadata.get('created'), v1_metadata.get('comment'),
                                     command, labels)
-      yield Schema1Layer(image_digest, extracted, metadata_string)
+
+      compressed_size = v1_metadata.get('Size')
+      yield Schema1Layer(image_digest, extracted, metadata_string, compressed_size)
 
   @property
   def _payload(self):

image/docker/schema2/manifest.py

@@ -25,8 +25,9 @@ DOCKER_SCHEMA2_MANIFEST_URLS_KEY = 'urls'
 
 # Named tuples.
 DockerV2ManifestConfig = namedtuple('DockerV2ManifestConfig', ['size', 'digest'])
-DockerV2ManifestLayer = namedtuple('DockerV2ManifestLayer', ['index', 'size', 'digest',
-                                                             'is_remote', 'urls'])
+DockerV2ManifestLayer = namedtuple('DockerV2ManifestLayer', ['index', 'digest',
+                                                             'is_remote', 'urls',
+                                                             'compressed_size'])
 
 LayerWithV1ID = namedtuple('LayerWithV1ID', ['layer', 'v1_id', 'v1_parent_id'])
 
@@ -191,7 +192,7 @@ class DockerSchema2Manifest(ManifestInterface):
                                        layer[DOCKER_SCHEMA2_MANIFEST_DIGEST_KEY])
 
       yield DockerV2ManifestLayer(index=index,
-                                  size=layer[DOCKER_SCHEMA2_MANIFEST_SIZE_KEY],
+                                  compressed_size=layer[DOCKER_SCHEMA2_MANIFEST_SIZE_KEY],
                                   digest=digest,
                                   is_remote=is_remote,
                                   urls=layer.get(DOCKER_SCHEMA2_MANIFEST_URLS_KEY))

image/docker/schema2/test/test_manifest.py

@@ -62,13 +62,13 @@ def test_valid_manifest():
 
   assert len(manifest.layers) == 4
   assert manifest.layers[0].is_remote
-  assert manifest.layers[0].size == 1234
+  assert manifest.layers[0].compressed_size == 1234
   assert str(manifest.layers[0].digest) == 'sha256:ec4b8955958665577945c89419d1af06b5f7636b4ac3da7f12184802ad867736'
   assert manifest.layers[0].urls
 
   assert manifest.leaf_layer == manifest.layers[3]
   assert not manifest.leaf_layer.is_remote
-  assert manifest.leaf_layer.size == 73109
+  assert manifest.leaf_layer.compressed_size == 73109
 
   blob_digests = list(manifest.blob_digests)
   assert len(blob_digests) == len(manifest.layers)

image/docker/squashed.py

@@ -28,10 +28,11 @@ class SquashedDockerImageFormatter(TarImageFormatter):
   # daemon dies when trying to load the entire tar into memory.
   SIZE_MULTIPLIER = 1.2
 
-  def stream_generator(self, repo_image, tag, synthetic_image_id, get_image_iterator,
+  def stream_generator(self, tag, manifest, synthetic_image_id, layer_iterator,
                        tar_stream_getter_iterator, reporter=None):
     image_mtime = 0
-    created = next(get_image_iterator()).v1_metadata.created
+    parsed_manifest = manifest.get_parsed_manifest()
+    created = parsed_manifest.created_datetime
     if created is not None:
       image_mtime = calendar.timegm(created.utctimetuple())
 
@@ -46,12 +47,12 @@ class SquashedDockerImageFormatter(TarImageFormatter):
 
     # Yield the repositories file:
     synthetic_layer_info = {}
-    synthetic_layer_info[tag + '.squash'] = synthetic_image_id
+    synthetic_layer_info[tag.name + '.squash'] = synthetic_image_id
 
     hostname = app.config['SERVER_HOSTNAME']
     repositories = {}
-    namespace = repo_image.repository.namespace_name
-    repository = repo_image.repository.name
+    namespace = tag.repository.namespace_name
+    repository = tag.repository.name
     repositories[hostname + '/' + namespace + '/' + repository] = synthetic_layer_info
 
     yield self.tar_file('repositories', json.dumps(repositories), mtime=image_mtime)
@@ -60,7 +61,7 @@ class SquashedDockerImageFormatter(TarImageFormatter):
     yield self.tar_folder(synthetic_image_id, mtime=image_mtime)
 
     # Yield the JSON layer data.
-    layer_json = SquashedDockerImageFormatter._build_layer_json(repo_image, synthetic_image_id)
+    layer_json = SquashedDockerImageFormatter._build_layer_json(parsed_manifest, synthetic_image_id)
     yield self.tar_file(synthetic_image_id + '/json', json.dumps(layer_json), mtime=image_mtime)
 
     # Yield the VERSION file.
@@ -68,16 +69,8 @@ class SquashedDockerImageFormatter(TarImageFormatter):
 
     # Yield the merged layer data's header.
     estimated_file_size = 0
-    for image in get_image_iterator():
-      # In V1 we have the actual uncompressed size, which is needed for back compat with
-      # older versions of Docker.
-      # In V2, we use the size given in the image JSON.
-      if image.blob.uncompressed_size:
-        estimated_file_size += image.blob.uncompressed_size
-      else:
-        image_json = image.compat_metadata
-        estimated_file_size += (image_json.get('Size', 0) *
-                                SquashedDockerImageFormatter.SIZE_MULTIPLIER)
+    for layer in layer_iterator:
+      estimated_file_size += layer.estimated_size(SquashedDockerImageFormatter.SIZE_MULTIPLIER)
 
     # Make sure the estimated file size is an integer number of bytes.
     estimated_file_size = int(math.ceil(estimated_file_size))
@@ -115,9 +108,8 @@ class SquashedDockerImageFormatter(TarImageFormatter):
 
 
   @staticmethod
-  def _build_layer_json(repo_image, synthetic_image_id):
-    layer_json = repo_image.compat_metadata
-    updated_json = copy.deepcopy(layer_json)
+  def _build_layer_json(manifest, synthetic_image_id):
+    updated_json = json.loads(manifest.leaf_layer.raw_v1_metadata)
     updated_json['id'] = synthetic_image_id
 
     if 'parent' in updated_json:

image/docker/test/test_schema1.py

@@ -77,7 +77,11 @@ def test_valid_manifest():
   assert manifest.layers[1].v1_metadata.image_id == 'someid'
   assert manifest.layers[1].v1_metadata.parent_image_id == 'anotherid'
 
+  assert manifest.layers[0].compressed_size is None
+  assert manifest.layers[1].compressed_size is None
+
   assert manifest.leaf_layer == manifest.layers[1]
+  assert manifest.created_datetime is None
 
 
 def test_validate_manifest():
@@ -88,6 +92,7 @@ def test_validate_manifest():
   manifest = DockerSchema1Manifest(manifest_bytes, validate=True)
   digest = manifest.digest
   assert digest == 'sha256:b5dc4f63fdbd64f34f2314c0747ef81008f9fcddce4edfc3fd0e8ec8b358d571'
+  assert manifest.created_datetime
 
 
 def test_validate_manifest_with_unicode():
@@ -98,6 +103,7 @@ def test_validate_manifest_with_unicode():
   manifest = DockerSchema1Manifest(manifest_bytes, validate=True)
   digest = manifest.digest
   assert digest == 'sha256:815ecf45716a96b19d54d911e6ace91f78bab26ca0dd299645d9995dacd9f1ef'
+  assert manifest.created_datetime
 
 
 def test_validate_manifest_with_unicode_encoded():
@@ -108,3 +114,4 @@ def test_validate_manifest_with_unicode_encoded():
   manifest = DockerSchema1Manifest.for_latin1_bytes(manifest_bytes, validate=True)
   digest = manifest.digest
   assert digest == 'sha256:dde3714ce7e23edc6413aa85c0b42792e4f2f79e9ea36afc154d63ff3d04e86c'
+  assert manifest.created_datetime

storage/fakestorage.py

@@ -26,7 +26,7 @@ class FakeStorage(BaseStorageV2):
 
   def get_content(self, path):
     if not path in _FAKE_STORAGE_MAP:
-      raise IOError('Fake file %s not found' % path)
+      raise IOError('Fake file %s not found. Exist: %s' % (path, _FAKE_STORAGE_MAP.keys()))
 
     _FAKE_STORAGE_MAP.get(path).seek(0)
     return _FAKE_STORAGE_MAP.get(path).read()

test/registry/protocol_fixtures.py

@@ -30,8 +30,49 @@ def sized_images():
   parent_bytes = layer_bytes_for_contents('parent contents', mode='')
   image_bytes = layer_bytes_for_contents('some contents', mode='')
   return [
-    Image(id='parentid', bytes=parent_bytes, parent_id=None, size=len(parent_bytes)),
-    Image(id='someid', bytes=image_bytes, parent_id='parentid', size=len(image_bytes)),
+    Image(id='parentid', bytes=parent_bytes, parent_id=None, size=len(parent_bytes),
+          config={'foo': 'bar'}),
+    Image(id='someid', bytes=image_bytes, parent_id='parentid', size=len(image_bytes),
+          config={'foo': 'childbar'}),
+  ]
+
+
+@pytest.fixture(scope="session")
+def multi_layer_images():
+  """ Returns complex images (with sizes) for push and pull testing. """
+  # Note: order is from base layer down to leaf.
+  layer1_bytes = layer_bytes_for_contents('layer 1 contents', mode='', other_files={
+    'file1': 'from-layer-1',
+  })
+
+  layer2_bytes = layer_bytes_for_contents('layer 2 contents', mode='', other_files={
+    'file2': 'from-layer-2',
+  })
+
+  layer3_bytes = layer_bytes_for_contents('layer 3 contents', mode='', other_files={
+    'file1': 'from-layer-3',
+    'file3': 'from-layer-3',
+  })
+
+  layer4_bytes = layer_bytes_for_contents('layer 4 contents', mode='', other_files={
+    'file3': 'from-layer-4',
+  })
+
+  layer5_bytes = layer_bytes_for_contents('layer 5 contents', mode='', other_files={
+    'file4': 'from-layer-5',
+  })
+
+  return [
+    Image(id='layer1', bytes=layer1_bytes, parent_id=None, size=len(layer1_bytes),
+          config={'internal_id': 'layer1'}),
+    Image(id='layer2', bytes=layer2_bytes, parent_id='layer1', size=len(layer2_bytes),
+          config={'internal_id': 'layer2'}),
+    Image(id='layer3', bytes=layer3_bytes, parent_id='layer2', size=len(layer3_bytes),
+          config={'internal_id': 'layer3'}),
+    Image(id='layer4', bytes=layer4_bytes, parent_id='layer3', size=len(layer4_bytes),
+          config={'internal_id': 'layer4'}),
+    Image(id='someid', bytes=layer5_bytes, parent_id='layer4', size=len(layer5_bytes),
+          config={'internal_id': 'layer5'}),
   ]
 
 

test/registry/protocols.py

@@ -14,8 +14,9 @@ PushResult = namedtuple('PushResult', ['checksums', 'manifests', 'headers'])
 PullResult = namedtuple('PullResult', ['manifests', 'image_ids'])
 
 
-def layer_bytes_for_contents(contents, mode='|gz'):
+def layer_bytes_for_contents(contents, mode='|gz', other_files=None):
   layer_data = StringIO()
+  tar_file = tarfile.open(fileobj=layer_data, mode='w' + mode)
 
   def add_file(name, contents):
     tar_file_info = tarfile.TarInfo(name=name)
@@ -23,12 +24,16 @@ def layer_bytes_for_contents(contents, mode='|gz'):
     tar_file_info.size = len(contents)
     tar_file_info.mtime = 1
 
-    tar_file = tarfile.open(fileobj=layer_data, mode='w' + mode)
     tar_file.addfile(tar_file_info, StringIO(contents))
-    tar_file.close()
 
   add_file('contents', contents)
 
+  if other_files is not None:
+    for file_name, file_contents in other_files.iteritems():
+      add_file(file_name, file_contents)
+
+  tar_file.close()
+
   layer_bytes = layer_data.getvalue()
   layer_data.close()
   return layer_bytes

test/registry/registry_tests.py

@@ -930,6 +930,58 @@ def test_squashed_image_disabled_user(pusher, sized_images, liveserver_session,
   assert response.status_code == 403
 
 
+@pytest.mark.parametrize('use_estimates', [
+  False,
+  True,
+])
+def test_multilayer_squashed_images(use_estimates, pusher, multi_layer_images, liveserver_session,
+                                    liveserver, registry_server_executor, app_reloader):
+  """ Test: Pulling of multilayer, complex squashed images. """
+  credentials = ('devtable', 'password')
+
+  # Push an image to download.
+  pusher.push(liveserver_session, 'devtable', 'newrepo', 'latest', multi_layer_images,
+              credentials=credentials)
+
+  if use_estimates:
+    # Clear the uncompressed size stored for the images, to ensure that we estimate instead.
+    for image in multi_layer_images:
+      registry_server_executor.on(liveserver).clear_uncompressed_size(image.id)
+
+  # Pull the squashed version.
+  response = liveserver_session.get('/c1/squash/devtable/newrepo/latest', auth=credentials)
+  tar = tarfile.open(fileobj=StringIO(response.content))
+
+  # Verify the squashed image.
+  expected_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
+  expected_names = ['repositories',
+                    expected_image_id,
+                    '%s/json' % expected_image_id,
+                    '%s/VERSION' % expected_image_id,
+                    '%s/layer.tar' % expected_image_id]
+
+  assert tar.getnames() == expected_names
+
+  # Verify the JSON image data.
+  json_data = (tar.extractfile(tar.getmember('%s/json' % expected_image_id)).read())
+
+  # Ensure the JSON loads and parses.
+  result = json.loads(json_data)
+  assert result['id'] == expected_image_id
+  assert result['config']['internal_id'] == 'layer5'
+
+  # Ensure that squashed layer tar can be opened.
+  tar = tarfile.open(fileobj=tar.extractfile(tar.getmember('%s/layer.tar' % expected_image_id)))
+  assert set(tar.getnames()) == {'contents', 'file1', 'file2', 'file3', 'file4'}
+
+  # Check the contents of various files.
+  assert tar.extractfile('contents').read() == 'layer 5 contents'
+  assert tar.extractfile('file1').read() == 'from-layer-3'
+  assert tar.extractfile('file2').read() == 'from-layer-2'
+  assert tar.extractfile('file3').read() == 'from-layer-4'
+  assert tar.extractfile('file4').read() == 'from-layer-5'
+
+
 @pytest.mark.parametrize('use_estimates', [
   False,
   True,
@@ -953,7 +1005,7 @@ def test_squashed_images(use_estimates, pusher, sized_images, liveserver_session
   tar = tarfile.open(fileobj=StringIO(response.content))
 
   # Verify the squashed image.
-  expected_image_id = '13a2d9711a3e242fcd50a7627c02d86901ac801b78dcea3147e8ff640078de52'
+  expected_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
   expected_names = ['repositories',
                     expected_image_id,
                     '%s/json' % expected_image_id,
@@ -968,9 +1020,14 @@ def test_squashed_images(use_estimates, pusher, sized_images, liveserver_session
   # Ensure the JSON loads and parses.
   result = json.loads(json_data)
   assert result['id'] == expected_image_id
+  assert result['config']['foo'] == 'childbar'
 
   # Ensure that squashed layer tar can be opened.
-  tarfile.open(fileobj=tar.extractfile(tar.getmember('%s/layer.tar' % expected_image_id)))
+  tar = tarfile.open(fileobj=tar.extractfile(tar.getmember('%s/layer.tar' % expected_image_id)))
+  assert tar.getnames() == ['contents']
+
+  # Check the contents.
+  assert tar.extractfile('contents').read() == 'some contents'
 
 
 @pytest.mark.parametrize('push_user, push_namespace, push_repo, mount_repo_name, expected_failure', [

test/registry_tests.py

@@ -2103,7 +2103,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
 
     # Create the repo.
     self.do_push('devtable', 'newrepo', 'devtable', 'password', images=initial_images)
-    initial_image_id = '91081df45b58dc62dd207441785eef2b895f0383fbe601c99a3cf643c79957dc'
+    initial_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
 
     # Pull the squashed version of the tag.
     tar, _ = self.get_squashed_image(auth=('devtable', 'password')) 
@@ -2119,7 +2119,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
 
     # Create the repo.
     self.do_push('devtable', 'newrepo', 'devtable', 'password', images=initial_images)
-    initial_image_id = '91081df45b58dc62dd207441785eef2b895f0383fbe601c99a3cf643c79957dc'
+    initial_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
 
     # Pull the squashed version of the tag.
     tar, _ = self.get_squashed_image()
@@ -2134,7 +2134,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
     ]
 
     self.do_push('devtable', 'newrepo', 'devtable', 'password', images=updated_images)
-    updated_image_id = '38df4bd4cdffc6b7d656dbd2813c73e864f2d362ad887c999ac315224ad281ac'
+    updated_image_id = '57e8d9226ca95ed4d9b303a4104cb6475605e00f6ce536fe6ed54a5d1f559882'
 
     # Pull the squashed version of the tag and ensure it has changed.
     tar, _ = self.get_squashed_image()
@@ -2157,7 +2157,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
     self.conduct('POST', '/__test/removeuncompressed/initialid')
 
     # Pull the squashed version of the tag.
-    initial_image_id = '91081df45b58dc62dd207441785eef2b895f0383fbe601c99a3cf643c79957dc'
+    initial_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
     tar, _ = self.get_squashed_image()
     self.assertTrue(initial_image_id in tar.getnames())
 
@@ -2179,7 +2179,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
     self.do_push('devtable', 'newrepo', 'devtable', 'password', images=images)
 
     # Pull the squashed version of the tag.
-    expected_image_id = 'bd590ae79fba5ebc6550aaf016c0bd0f49b1d78178e0f83e0ca1c56c2bb7e7bf'
+    expected_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
 
     expected_names = ['repositories',
                       expected_image_id,
@@ -2212,7 +2212,7 @@ class SquashingTests(RegistryTestCaseMixin, V1RegistryPushMixin, LiveServerTestC
 
     # Create the repo.
     self.do_push('devtable', 'newrepo', 'devtable', 'password', images=initial_images)
-    initial_image_id = '91081df45b58dc62dd207441785eef2b895f0383fbe601c99a3cf643c79957dc'
+    initial_image_id = 'cdc6d6c0d07d2cbacfc579e49ce0c256c5084b9b2b16c1b1b0c45f26a12a4ba5'
 
     # Try to pull the torrent of the squashed image. This should fail with a 406 since the
     # squashed image doesn't yet exist.

util/audit.py

@@ -1,6 +1,7 @@
 import logging
 import random
 
+from collections import namedtuple
 from urlparse import urlparse
 
 from flask import request
@@ -11,6 +12,13 @@ from auth.auth_context import get_authenticated_context, get_authenticated_user
 
 logger = logging.getLogger(__name__)
 
+Repository = namedtuple('Repository', ['namespace_name', 'name', 'id'])
+
+def wrap_repository(repo_obj):
+  return Repository(namespace_name=repo_obj.namespace_user.username, name=repo_obj.name,
+                    id=repo_obj.id)
+
+
 def track_and_log(event_name, repo_obj, analytics_name=None, analytics_sample=1, **kwargs):
   repo_name = repo_obj.name
   namespace_name = repo_obj.namespace_name