RDS: add enable_http_endpoint attribute (#5470)

moto/rds/models.py

@@ -114,6 +114,31 @@ def __init__(self, **kwargs):
         self.enabled_cloudwatch_logs_exports = (
             kwargs.get("enable_cloudwatch_logs_exports") or []
         )
+        self.enable_http_endpoint = False
+        # instead of raising an error on aws rds create-db-cluster commands with
+        # incompatible configurations with enable_http_endpoint
+        # (e.g. engine_mode is not set to "serverless"), the API
+        # automatically sets the enable_http_endpoint parameter to False
+        if kwargs.get("enable_http_endpoint"):
+            if self.engine_mode == "serverless":
+                if self.engine == "aurora-mysql" and self.engine_version in [
+                    "5.6.10a",
+                    "5.6.1",
+                    "2.07.1",
+                    "5.7.2",
+                ]:
+                    self.enable_http_endpoint = kwargs.get(
+                        "enable_http_endpoint", False
+                    )
+                elif self.engine == "aurora-postgresql" and self.engine_version in [
+                    "10.12",
+                    "10.14",
+                    "10.18",
+                    "11.13",
+                ]:
+                    self.enable_http_endpoint = kwargs.get(
+                        "enable_http_endpoint", False
+                    )
 
     @property
     def db_cluster_arn(self):
@@ -170,7 +195,7 @@ def to_xml(self):
               <IAMDatabaseAuthenticationEnabled>false</IAMDatabaseAuthenticationEnabled>
               <EngineMode>{{ cluster.engine_mode }}</EngineMode>
               <DeletionProtection>{{ 'true' if cluster.deletion_protection else 'false' }}</DeletionProtection>
-              <HttpEndpointEnabled>false</HttpEndpointEnabled>
+              <HttpEndpointEnabled>{{ cluster.enable_http_endpoint }}</HttpEndpointEnabled>
               <CopyTagsToSnapshot>{{ cluster.copy_tags_to_snapshot }}</CopyTagsToSnapshot>
               <CrossAccountClone>false</CrossAccountClone>
               <DomainMemberships></DomainMemberships>

moto/rds/responses.py

@@ -117,6 +117,7 @@ def _get_db_cluster_kwargs(self):
             "parameter_group": self._get_param("DBClusterParameterGroup"),
             "region": self.region,
             "db_cluster_instance_class": self._get_param("DBClusterInstanceClass"),
+            "enable_http_endpoint": self._get_param("EnableHttpEndpoint"),
             "copy_tags_to_snapshot": self._get_param("CopyTagsToSnapshot"),
             "tags": self.unpack_complex_list_params("Tags.Tag", ("Key", "Value")),
         }

tests/test_rds/test_rds_clusters.py

@@ -716,3 +716,39 @@ def test_add_tags_to_cluster_snapshot():
 
     tags = conn.list_tags_for_resource(ResourceName=snapshot_arn)["TagList"]
     tags.should.equal([{"Key": "k2", "Value": "v2"}])
+
+
+@mock_rds
+def test_create_db_cluster_with_enable_http_endpoint_valid():
+    client = boto3.client("rds", region_name="eu-north-1")
+
+    resp = client.create_db_cluster(
+        DBClusterIdentifier="cluster-id",
+        DatabaseName="users",
+        Engine="aurora-mysql",
+        EngineMode="serverless",
+        EngineVersion="5.6.10a",
+        MasterUsername="root",
+        MasterUserPassword="hunter2_",
+        EnableHttpEndpoint=True,
+    )
+    cluster = resp["DBCluster"]
+    cluster.should.have.key("HttpEndpointEnabled").equal(True)
+
+
+@mock_rds
+def test_create_db_cluster_with_enable_http_endpoint_invalid():
+    client = boto3.client("rds", region_name="eu-north-1")
+
+    resp = client.create_db_cluster(
+        DBClusterIdentifier="cluster-id",
+        DatabaseName="users",
+        Engine="aurora-mysql",
+        EngineMode="serverless",
+        EngineVersion="5.7.0",
+        MasterUsername="root",
+        MasterUserPassword="hunter2_",
+        EnableHttpEndpoint=True,
+    )
+    cluster = resp["DBCluster"]
+    cluster.should.have.key("HttpEndpointEnabled").equal(False)