Allow users the ability to update the instance name

Implements: blueprint update-instance-name

This review provides the user the ability to update the instance
name or/and configuration using the trove client.

Change-Id: If404d4d47c83ca36d7a08ed2a8f1f8dddb7ed677

3 files changed, 45 insertions, 0 deletions

diff --git a/troveclient/tests/test_instances.py b/troveclient/tests/test_instances.py
index 69f61f8..c3c95e4 100644
--- a/troveclient/tests/test_instances.py
+++ b/troveclient/tests/test_instances.py
@@ -177,6 +177,17 @@ class InstancesTest(testtools.TestCase):
         resp.status_code = 500
         self.assertRaises(Exception, self.instances.modify, 'instance1')
 
+    def test_edit(self):
+        resp = mock.Mock()
+        resp.status_code = 204
+        body = None
+        self.instances.api.client.patch = mock.Mock(return_value=(resp, body))
+        self.instances.edit(123)
+        self.instances.edit(123, 321)
+        self.instances.edit(123, 321, 'name-1234')
+        resp.status_code = 500
+        self.assertRaises(Exception, self.instances.edit, 'instance1')
+
     def test_configuration(self):
         def side_effect_func(path, inst):
             return path, inst
diff --git a/troveclient/v1/instances.py b/troveclient/v1/instances.py
index ed44464..4a73655 100644
--- a/troveclient/v1/instances.py
+++ b/troveclient/v1/instances.py
@@ -96,6 +96,20 @@ class Instances(base.ManagerWithFind):
         resp, body = self.api.client.put(url, body=body)
         common.check_for_exceptions(resp, body, url)
 
+    def edit(self, instance_id, configuration=None, name=None):
+        body = {
+            "instance": {
+            }
+        }
+        if configuration is not None:
+            body["instance"]["configuration"] = configuration
+        if name is not None:
+            body["instance"]["name"] = name
+
+        url = "/instances/%s" % instance_id
+        resp, body = self.api.client.patch(url, body=body)
+        common.check_for_exceptions(resp, body, url)
+
     def list(self, limit=None, marker=None):
         """
         Get a list of all instances.
diff --git a/troveclient/v1/shell.py b/troveclient/v1/shell.py
index 990b555..d6d94e6 100644
--- a/troveclient/v1/shell.py
+++ b/troveclient/v1/shell.py
@@ -147,6 +147,26 @@ def do_delete(cs, args):
     cs.instances.delete(args.instance)
 
 
+@utils.arg('instance',
+           metavar='<instance>',
+           type=str,
+           help='UUID of the instance.')
+@utils.arg('--name',
+           metavar='<name>',
+           type=str,
+           default=None,
+           help='Name of the instance.')
+@utils.arg('--configuration',
+           metavar='<configuration>',
+           type=str,
+           default=None,
+           help='ID of the configuration reference to attach.')
+@utils.service_type('database')
+def do_update(cs, args):
+    """Updates an instance name or configuration."""
+    cs.instances.edit(args.instance, args.configuration, args.name)
+
+
 @utils.arg('name',
            metavar='<name>',
            type=str,