Add `--heat-type` in overcloud delete

With this patch adding a new argument `--heat-type`
in "overcloud delete" command that will default to `pod` (ephermal
heat) and based on input we will set a var `heat_stack_delete`
which will be passed to cli-overcloud-delete.yaml to decide whether
to run heat stack delete at all.

Depends-On: https://review.opendev.org/c/openstack/tripleo-ansible/+/808537

Closes-bug: #1938618
Change-Id: I74cdac5b96a10ec8baefdf3080fd34e03d8f1933

tripleoclient/tests/v2/overcloud_delete/test_overcloud_delete.py

@@ -34,9 +34,10 @@ class TestDeleteOvercloud(deploy_fakes.TestDeployOvercloud):
     @mock.patch('os.chdir', autospec=True)
     @mock.patch('tempfile.mkdtemp', autospec=True)
     def test_overcloud_delete(self, mock_mkdir, mock_cd, mock_run_playbook):
-        arglist = ["overcast", "-y"]
+        arglist = ["overcast", "--heat-type", "installed", "-y"]
         verifylist = [
             ("stack", "overcast"),
+            ("heat_type", "installed"),
             ("yes", True)
         ]
 
@@ -51,6 +52,7 @@ class TestDeleteOvercloud(deploy_fakes.TestDeployOvercloud):
             constants.ANSIBLE_TRIPLEO_PLAYBOOKS,
             extra_vars={
                 "stack_name": "overcast",
+                "heat_stack_delete": True
             },
             verbosity=3,
         )
@@ -155,6 +157,7 @@ class TestDeleteOvercloud(deploy_fakes.TestDeployOvercloud):
             constants.ANSIBLE_TRIPLEO_PLAYBOOKS,
             extra_vars={
                 "stack_name": "overcast",
+                "heat_stack_delete": False
             },
             verbosity=3,
         )

tripleoclient/v2/overcloud_delete.py

@@ -66,6 +66,18 @@ class DeleteOvercloud(command.Command):
                             help=_('Enable unprovisioning of network ports'),
                             default=False,
                             action="store_true")
+        parser.add_argument(
+            '--heat-type',
+            action='store',
+            default='pod',
+            choices=['installed', 'pod', 'container', 'native'],
+            help=_('The type of Heat process that was used to execute'
+                   'the deployment.\n'
+                   'pod (Default): Use an ephemeral Heat pod.\n'
+                   'installed: Use the system installed Heat.\n'
+                   'container: Use an ephemeral Heat container.\n'
+                   'native: Use an ephemeral Heat process.')
+        )
         return parser
 
     def _validate_args(self, parsed_args):
@@ -98,6 +110,8 @@ class DeleteOvercloud(command.Command):
             # start removing infrastructure.
             playbooks = ["cli-cleanup-ipa.yml", "cli-overcloud-delete.yaml"]
 
+        heat_stack_delete = parsed_args.heat_type in ["installed", "native"]
+
         with utils.TempDirs() as tmp:
             utils.run_ansible_playbook(
                 playbooks,
@@ -106,7 +120,8 @@ class DeleteOvercloud(command.Command):
                 playbook_dir=constants.ANSIBLE_TRIPLEO_PLAYBOOKS,
                 verbosity=utils.playbook_verbosity(self=self),
                 extra_vars={
-                    "stack_name": parsed_args.stack
+                    "stack_name": parsed_args.stack,
+                    "heat_stack_delete": heat_stack_delete
                 }
             )