add alarm show to client

Depends-On: Ia675c6d74ec947729d4520007eac1423cdf58ce9
Change-Id: I4be7ebc7e977ae8ea0a2daf86777ba08f1d4ad61
Implements: blueprint add-alarm-show-api

releasenotes/notes/add_alarm_show_api-9a9d91cf69c45a8e.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - Created a new API to show all alarm properties, with a mandatory parameter
+    ``vitrage_id`` of the alarm. The path for the api is ``/v1/alarm/_id_``.

tools/vitrage.bash_completion

@@ -6,9 +6,10 @@ _vitrage()
 
   # Command data:
   cmds='alarm complete event healthcheck help rca resource template topology'
-  cmds_alarm='list count'
+  cmds_alarm='list show count'
   cmds_alarm_list='-h --help -f --format -c --column --max-width --print-empty --noindent --quote --all-tenants'
   cmds_alarm_count='-h --help -f --format -c --column --max-width --print-empty --noindent --quote --all-tenants'
+  cmds_alarm_show='-h --help'
   cmds_complete='-h --help --name --shell'
   cmds_event='post'
   cmds_event_post='-h --help --type --time --details'

vitrageclient/shell.py

@@ -51,6 +51,7 @@ class VitrageCommandManager(commandmanager.CommandManager):
         'resource show': resource.ResourceShow,
         'resource list': resource.ResourceList,
         'alarm list': alarm.AlarmList,
+        'alarm show': alarm.AlarmShow,
         'alarm count': alarm.AlarmCount,
         'rca show': rca.RcaShow,
         'template validate': template.TemplateValidate,

vitrageclient/v1/alarm.py

@@ -27,6 +27,14 @@ class Alarm(object):
                       all_tenants=all_tenants)
         return self.api.get(self.url, params=params).json()
 
+    def get(self, vitrage_id):
+        """Get an alarm
+
+        :param vitrage_id: the vitrage_id of the alarm
+        """
+        url = self.url + vitrage_id
+        return self.api.get(url).json()
+
     def count(self, all_tenants=False):
         """Get a count of all alarms present
 

vitrageclient/v1/cli/alarm.py

@@ -52,6 +52,20 @@ class AlarmList(lister.Lister):
                                 'update_timestamp'), alarms)
 
 
+class AlarmShow(show.ShowOne):
+    """Show an alarm"""
+
+    def get_parser(self, prog_name):
+        parser = super(AlarmShow, self).get_parser(prog_name)
+        parser.add_argument("vitrage_id", help="Vitrage id of the alarm")
+        return parser
+
+    def take_action(self, parsed_args):
+        vitrage_id = parsed_args.vitrage_id
+        alarm = utils.get_client(self).alarm.get(vitrage_id=vitrage_id)
+        return self.dict2columns(alarm)
+
+
 # noinspection PyAbstractClass
 class AlarmCount(show.ShowOne):
     """Show a count of all alarms"""