Add command for healthcheck

Change-Id: I874809435b9afbb7282b7012a8b720c30b523a2a

tools/vitrage.bash_completion

@@ -5,12 +5,13 @@ _vitrage()
   _get_comp_words_by_ref -n : cur prev words
 
   # Command data:
-  cmds='alarm complete event help rca resource template topology'
+  cmds='alarm complete event healthcheck help rca resource template topology'
   cmds_alarm='list'
   cmds_alarm_list='-h --help -f --format -c --column --max-width --print-empty --noindent --quote --all-tenants'
   cmds_complete='-h --help --name --shell'
   cmds_event='post'
   cmds_event_post='-h --help --type --time --details'
+  cmds_healthcheck='-h --help -f --format -c --column --max-width --print-empty --noindent --variable --prefix'
   cmds_help='-h --help'
   cmds_rca='show'
   cmds_rca_show='-h --help -f --format -c --column --max-width --print-empty --noindent --variable --prefix --all-tenants'

vitrageclient/shell.py

@@ -34,6 +34,7 @@ from vitrageclient import client
 
 from vitrageclient.v1.cli import alarm
 from vitrageclient.v1.cli import event
+from vitrageclient.v1.cli import healthcheck
 from vitrageclient.v1.cli import rca
 from vitrageclient.v1.cli import resource
 from vitrageclient.v1.cli import template
@@ -51,6 +52,7 @@ class VitrageCommandManager(commandmanager.CommandManager):
         'template list': template.TemplateList,
         'template show': template.TemplateShow,
         'event post': event.EventPost,
+        'healthcheck': healthcheck.HealthCheck
     }
 
     def load_commands(self, namespace):

vitrageclient/v1/cli/healthcheck.py

@@ -0,0 +1,23 @@
+# Copyright 2017 - ZTE Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from cliff import show
+
+
+# noinspection PyAbstractClass
+class HealthCheck(show.ShowOne):
+    """Check api health status"""
+
+    def take_action(self, parsed_args):
+        return self.dict2columns(self.app.client.healthcheck.get())

vitrageclient/v1/client.py

@@ -14,6 +14,7 @@ from vitrageclient import client
 
 from vitrageclient.v1 import alarm
 from vitrageclient.v1 import event
+from vitrageclient.v1 import healthcheck
 from vitrageclient.v1 import rca
 from vitrageclient.v1 import resource
 from vitrageclient.v1 import template
@@ -31,3 +32,4 @@ class Client(object):
         self.rca = rca.Rca(self._api)
         self.template = template.Template(self._api)
         self.event = event.Event(self._api)
+        self.healthcheck = healthcheck.HealthCheck(self._api)

vitrageclient/v1/healthcheck.py

@@ -0,0 +1,36 @@
+# Copyright 2017 - ZTE Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from vitrageclient.exc import ClientException
+
+
+class HealthCheck(object):
+    URL = 'healthcheck/'
+    STATUS_CODE_OK = 200
+
+    def __init__(self, api):
+        self.api = api
+
+    def get(self):
+        """Get healthcheck result"""
+        try:
+            resp = self.api.get(self.URL)
+        except ClientException as e:
+            return {"passed": False,
+                    "message": e.message,
+                    "url": e.url,
+                    "status_code": e.code}
+
+        return {"passed": resp.status_code == self.STATUS_CODE_OK,
+                "status_code": resp.status_code}