Added Azure storage backend support.

closes #9488

Required PR: pulp/pulpcore#1691

CHANGES/9488.feature

@@ -0,0 +1 @@
+Enabled Azure storage backend support.

pulp_container/app/redirects.py

@@ -90,7 +90,7 @@ def redirect_to_artifact(self, content_name, manifest, manifest_media_type):
         except ObjectDoesNotExist:
             raise Http404(f"An artifact for '{content_name}' was not found")
 
-        return self.redirect_to_s3_storage(artifact, manifest_media_type)
+        return self.redirect_to_object_storage(artifact, manifest_media_type)
 
     def issue_blob_redirect(self, blob):
         """
@@ -101,9 +101,9 @@ def issue_blob_redirect(self, blob):
         except ObjectDoesNotExist:
             return self.redirect_to_content_app("blobs", blob.digest)
 
-        return self.redirect_to_s3_storage(artifact, blob.media_type)
+        return self.redirect_to_object_storage(artifact, blob.media_type)
 
-    def redirect_to_s3_storage(self, artifact, return_media_type):
+    def redirect_to_object_storage(self, artifact, return_media_type):
         """
         Redirect to the passed artifact's file stored in the S3 storage.
         """
@@ -114,3 +114,21 @@ def redirect_to_s3_storage(self, artifact, return_media_type):
         }
         content_url = artifact.file.storage.url(artifact.file.name, parameters=parameters)
         return redirect(content_url)
+
+
+class AzureStorageRedirects(S3StorageRedirects):
+    """
+    A class that implements methods for the direct retrieval of manifest objects.
+    """
+
+    def redirect_to_object_storage(self, artifact, return_media_type):
+        """
+        Redirect to the passed artifact's file stored in the Azure storage.
+        """
+        filename = os.path.basename(artifact.file.name)
+        parameters = {
+            "content_type": return_media_type,
+            "content_disposition": f"attachment; filename={filename}",
+        }
+        content_url = artifact.file.storage.url(artifact.file.name, parameters=parameters)
+        return redirect(content_url)

pulp_container/app/registry_api.py

@@ -48,7 +48,11 @@
 from pulp_container.app import models, serializers
 from pulp_container.app.access_policy import RegistryAccessPolicy
 from pulp_container.app.authorization import AuthorizationService
-from pulp_container.app.redirects import FileStorageRedirects, S3StorageRedirects
+from pulp_container.app.redirects import (
+    FileStorageRedirects,
+    S3StorageRedirects,
+    AzureStorageRedirects,
+)
 from pulp_container.app.token_verification import (
     RegistryAuthentication,
     TokenAuthentication,
@@ -741,6 +745,8 @@ def __init__(self, *args, **kwargs):
             self.redirects_class = FileStorageRedirects
         elif settings.DEFAULT_FILE_STORAGE == "storages.backends.s3boto3.S3Boto3Storage":
             self.redirects_class = S3StorageRedirects
+        elif settings.DEFAULT_FILE_STORAGE == "storages.backends.azure_storage.AzureStorage":
+            self.redirects_class = AzureStorageRedirects
         else:
             raise NotImplementedError()