Added read replica support

moto/rds2/models.py

@@ -88,14 +88,12 @@ class Database(object):
     def address(self):
         return "{0}.aaaaaaaaaa.{1}.rds.amazonaws.com".format(self.db_instance_identifier, self.region)
 
-    # TODO: confirm how this should represent in the RESULT JSON
     def add_replica(self, replica):
         self.replicas.append(replica.db_instance_identifier)
 
     def remove_replica(self, replica):
         self.replicas.remove(replica.db_instance_identifier)
 
-    # TODO: confirm how this should represent in the RESULT JSON
     def set_as_replica(self):
         self.is_replica = True
         self.replicas = []
@@ -210,7 +208,11 @@ class Database(object):
             "{{ replica }}"
         {%- endfor -%}
         ],
+        {%- if database.source_db_identifier -%}
+        "ReadReplicaSourceDBInstanceIdentifier": "{{ database.source_db_identifier }}",
+        {%- else -%}
         "ReadReplicaSourceDBInstanceIdentifier": null,
+        {%- endif -%}
         "SecondaryAvailabilityZone": null,
         "StatusInfos": null,
         "VpcSecurityGroups": [

moto/rds2/responses.py

@@ -293,14 +293,14 @@ CREATE_DATABASE_TEMPLATE = """{
   }
 }"""
 
-CREATE_DATABASE_REPLICA_TEMPLATE = """{
-  "CreateDBInstanceResponse": {
-    "CreateDBInstanceResult": {
-      {{ database.to_json() }}
-    },
-    "ResponseMetadata": { "RequestId": "523e3218-afc7-11c3-90f5-f90431260ab4" }
+CREATE_DATABASE_REPLICA_TEMPLATE = """{"CreateDBInstanceReadReplicaResponse": {
+  "ResponseMetadata": {
+    "RequestId": "5e60c46d-a844-11e4-bb68-17f36418e58f"
+  },
+  "CreateDBInstanceReadReplicaResult": {
+    "DBInstance": {{ database.to_json() }}
   }
-}"""
+}}"""
 
 DESCRIBE_DATABASES_TEMPLATE = """{
   "DescribeDBInstancesResponse": {
@@ -336,7 +336,7 @@ REBOOT_DATABASE_TEMPLATE = """{"RebootDBInstanceResponse": {
   }
 }"""
 
-# TODO: update delete DB TEMPLATE
+
 DELETE_DATABASE_TEMPLATE = """{ "DeleteDBInstanceResponse": {
     "DeleteDBInstanceResult": {
       "DBInstance": {{ database.to_json() }}