CLI: implement deployment list command

kolla-mesos deployment list

partial blueprint per-service-cli

Change-Id: I4a7928c89ca8a5af57d7a99362c6a5041c70685a

kolla_mesos/cli/deployment.py

@@ -11,6 +11,7 @@
 # limitations under the License.
 
 from cliff import command
+from cliff import lister
 from cliff import show
 from oslo_config import cfg
 from oslo_log import log
@@ -54,3 +55,13 @@ class Show(show.ShowOne):
     def take_action(self, parsed_args):
         conf_opts = deployment.get_deployment()
         return cli_utils.dict2columns(conf_opts, id_col='deployment_id')
+
+
+class List(lister.Lister):
+    """List all existing deployments."""
+
+    def take_action(self, parsed_args):
+        cols = ['Deployment ID']
+        ids = deployment.list_deployments()
+        values = [[id] for id in ids]
+        return cols, values

kolla_mesos/deployment.py

@@ -67,3 +67,14 @@ def get_deployment():
         # TODO(asalkeld) if horizon is running and ready, get the url.
         conf_opts['horizon'] = ''
     return conf_opts
+
+
+def list_deployments():
+    ids = []
+    with zk_utils.connection() as zk:
+        children = zk.get_children('/kolla')
+        for child in children:
+            if child not in ['groups', 'variables', 'common',
+                             'config', 'commands']:
+                ids.append(child)
+    return ids

setup.cfg

@@ -56,6 +56,7 @@ kolla_mesos.cli =
     deployment kill = kolla_mesos.cli.deployment:Kill
     deployment cleanup = kolla_mesos.cli.deployment:Cleanup
     deployment show = kolla_mesos.cli.deployment:Show
+    deployment list = kolla_mesos.cli.deployment:List
 
 oslo.config.opts =
     kolla_mesos = kolla_mesos.opts:list_opts