copy db snapshot api implementation

lib/fog/aws/rds.rb

@@ -30,6 +30,7 @@ module Fog
       request :create_db_snapshot
       request :delete_db_snapshot
       request :modify_db_snapshot_attribute
+      request :copy_db_snapshot
 
       request :create_db_parameter_group
       request :delete_db_parameter_group

lib/fog/aws/requests/rds/copy_db_snapshot.rb

@@ -0,0 +1,53 @@
+module Fog
+  module AWS
+    class RDS
+      class Real
+        require 'fog/aws/parsers/rds/create_db_snapshot'
+
+        # Copy a db snapshot
+        #
+        # ==== Parameters
+        # * source_db_snapshot_identifier<~String> - Id of db snapshot
+        # * target_db_snapshot_identifier<~String> - Desired Id of the db snapshot copy
+        # * 'copy_tags'<~Boolean> - true to copy all tags from the source DB snapshot to the target DB snapshot; otherwise false.
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        #
+        # {Amazon API Reference}[http://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_CopyDBSnapshot.html]
+        def copy_db_snapshot(source_db_snapshot_identifier, target_db_snapshot_identifier, copy_tags = false)
+          request(
+            'Action'                     => 'CopyDBSnapshot',
+            'SourceDBSnapshotIdentifier' => source_db_snapshot_identifier,
+            'TargetDBSnapshotIdentifier' => target_db_snapshot_identifier,
+            'CopyTags'                   => copy_tags,
+            :parser                      => Fog::Parsers::AWS::RDS::CreateDBSnapshot.new
+          )
+        end
+      end
+
+      class Mock
+        #
+        # Usage
+        #
+        # Fog::AWS[:rds].copy_db_snapshot("snap-original-id", "snap-backup-id", true)
+        #
+
+        def copy_db_snapshot(source_db_snapshot_identifier, target_db_snapshot_identifier, copy_tags = false)
+          response = Excon::Response.new
+          response.status = 200
+          snapshot_id = Fog::AWS::Mock.snapshot_id
+          data = {
+            'snapshotId'  => snapshot_id,
+          }
+          self.data[:snapshots][snapshot_id] = data
+          response.body = {
+            'requestId' => Fog::AWS::Mock.request_id
+          }.merge!(data)
+          response
+        end
+      end
+    end
+  end
+end