Allow running validations by group using Ansible by default

This patch allows the operator to run all the validations belonging to
a group using ansible-playbook instead of Mistral.

Change-Id: I8c833819c88f1822bf605df0c997ab5d651e7620
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>

releasenotes/notes/Allow-running-validations-by-name-using-Ansible-by-default-2dac0dfd9c7a4690.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    The validations can now be performed by calling Mistral or by calling
+    ``ansible-playbook``. By default, the latter is used. The new ``--use-mistral``
+    option allows to execute either groups or a set of specific validations by
+    calling Mistral instead of using the default mechanism, ie. ``ansible-playbook``.
+

tripleoclient/v1/tripleo_validator.py

@@ -168,8 +168,9 @@ class TripleOValidatorRun(command.Command):
     def _run_validator_run(self, parsed_args):
         clients = self.app.client_manager
         LOG = logging.getLogger(__name__ + ".ValidationsRun")
+        playbooks = []
 
-        if parsed_args.use_mistral or parsed_args.group:
+        if parsed_args.use_mistral:
             if not parsed_args.validation_name:
                 workflow_input = {
                     "plan": parsed_args.plan,
@@ -189,9 +190,25 @@ class TripleOValidatorRun(command.Command):
                     out.get('validation_name'),
                     oooutils.indent(out.get('stdout'))))
         else:
-            playbooks = []
+            if parsed_args.group:
-            for pb in parsed_args.validation_name:
+                workflow_input = {
-                playbooks.append(pb + '.yaml')
+                    "group_names": parsed_args.group
+                }
+
+                LOG.debug(_('Getting the validations list by group'))
+                try:
+                    output = validations.list_validations(
+                        clients, workflow_input)
+                    for val in output:
+                        playbooks.append(val.get('id') + '.yaml')
+                except Exception as e:
+                    print(
+                        _("Validations listing by group finished with errors"))
+                    print('Output: {}'.format(e))
+
+            else:
+                for pb in parsed_args.validation_name:
+                    playbooks.append(pb + '.yaml')
 
             python_interpreter = \
                 "/usr/bin/python{}".format(sys.version_info[0])