Add new Manifest, ManifestLabel, ManifestLegacyImage and ManifestBlob tables and start writing and GCing to/from them

This change also starts passing in the manifest interface, rather than the raw data, to the model for writing.

Note that this change does *not* backfill the existing rows in to the new tables; that will occur in a followup PR. The new columns in `tagmanifest` and `tagmanifestlabel` will be used to track the backfill, as it will occur in a worker.

initdb.py

@@ -20,12 +20,13 @@ from data.database import (db, all_models, Role, TeamRole, Visibility, LoginServ
                            QuayRegion, QuayService, UserRegion, OAuthAuthorizationCode,
                            ServiceKeyApprovalType, MediaType, LabelSourceType, UserPromptKind,
                            RepositoryKind, User, DisableReason, DeletedNamespace, appr_classes,
-                           ApprTagKind, ApprBlobPlacementLocation)
+                           ApprTagKind, ApprBlobPlacementLocation, Repository)
 from data import model
 from data.queue import WorkQueue
 from app import app, storage as store, tf
 from storage.basestorage import StoragePaths
 from endpoints.v2.manifest import _generate_and_store_manifest
+from image.docker.schema1 import DOCKER_SCHEMA1_CONTENT_TYPES
 
 
 from workers import repositoryactioncounter
@@ -243,6 +244,9 @@ def setup_database_for_testing(testcase, with_storage=False, force_rebuild=False
 
     db_initialized_for_testing.set()
 
+  # Initialize caches.
+  Repository.kind.get_id('image')
+
   # Create a savepoint for the testcase.
   testcases[testcase] = {}
   testcases[testcase]['transaction'] = db.transaction()
@@ -423,6 +427,9 @@ def initialize_database():
   MediaType.create(name='application/vnd.cnr.manifests.v0.json')
   MediaType.create(name='application/vnd.cnr.manifest.list.v0.json')
 
+  for media_type in DOCKER_SCHEMA1_CONTENT_TYPES:
+    MediaType.create(name=media_type)
+
   LabelSourceType.create(name='manifest')
   LabelSourceType.create(name='api', mutable=True)
   LabelSourceType.create(name='internal')