Provide option for delete zonefiles on zone delete

This commit provides an header option (hard-delete) for deletion of
zonefiles on backend as part of zone delete API.

Main patch (in Designate) is:
https://review.opendev.org/c/openstack/designate/+/835317

Change-Id: I0080c028466d809f4f5118fec05d9e46b2dfce84

4 files changed, 34 insertions, 1 deletions

diff --git a/designateclient/v2/cli/common.py b/designateclient/v2/cli/common.py
index 59dd008..f8dbdfa 100644
--- a/designateclient/v2/cli/common.py
+++ b/designateclient/v2/cli/common.py
@@ -33,6 +33,16 @@ def add_edit_managed_option(parser):
     )
 
 
+def add_hard_delete_option(parser):
+    parser.add_argument(
+        '--hard-delete',
+        default=False,
+        action='store_true',
+        help='Delete zone along-with backend zone resources (i.e. files). '
+             'Default: False'
+    )
+
+
 def add_sudo_project_id_option(parser):
     parser.add_argument(
         '--sudo-project-id',
@@ -58,6 +68,10 @@ def set_edit_managed(client, value):
     client.session.edit_managed = value
 
 
+def set_hard_delete(client, value):
+    client.session.hard_delete = value
+
+
 def set_all_common_headers(client, parsed_args):
 
     if parsed_args.all_projects is not None and \
@@ -72,3 +86,8 @@ def set_all_common_headers(client, parsed_args):
     if parsed_args.sudo_project_id is not None and \
             isinstance(parsed_args.sudo_project_id, str):
         set_sudo_project_id(client, parsed_args.sudo_project_id)
+
+    if hasattr(parsed_args, 'hard_delete') and \
+            parsed_args.hard_delete is not None and \
+            isinstance(parsed_args.hard_delete, bool):
+        set_hard_delete(client, parsed_args.hard_delete)
diff --git a/designateclient/v2/cli/zones.py b/designateclient/v2/cli/zones.py
index 6d059c6..f326232 100644
--- a/designateclient/v2/cli/zones.py
+++ b/designateclient/v2/cli/zones.py
@@ -242,6 +242,7 @@ class DeleteZoneCommand(command.ShowOne):
         parser.add_argument('id', help="Zone ID")
 
         common.add_all_common_options(parser)
+        common.add_hard_delete_option(parser)
 
         return parser
 
diff --git a/designateclient/v2/client.py b/designateclient/v2/client.py
index 0508535..4463506 100644
--- a/designateclient/v2/client.py
+++ b/designateclient/v2/client.py
@@ -49,6 +49,7 @@ class DesignateAdapter(adapter.LegacyJsonAdapter):
         self.timeout = kwargs.pop('timeout', None)
         self.all_projects = kwargs.pop('all_projects', False)
         self.edit_managed = kwargs.pop('edit_managed', False)
+        self.hard_delete = kwargs.pop('hard_delete', False)
         self.sudo_project_id = kwargs.pop('sudo_project_id', None)
         super(self.__class__, self).__init__(*args, **kwargs)
 
@@ -72,6 +73,12 @@ class DesignateAdapter(adapter.LegacyJsonAdapter):
                 str(self.edit_managed)
             )
 
+        if self.hard_delete:
+            kwargs['headers'].setdefault(
+                'X-Designate-Hard-Delete',
+                str(self.hard_delete)
+            )
+
         if self.sudo_project_id is not None:
             kwargs['headers'].setdefault(
                 'X-Auth-Sudo-Project-ID',
@@ -113,7 +120,7 @@ class Client(object):
                  extensions=None, service_type='dns', service_name=None,
                  http_log_debug=False, session=None, auth=None, timeout=None,
                  endpoint_override=None, all_projects=False,
-                 edit_managed=False, sudo_project_id=None):
+                 edit_managed=False, hard_delete=False, sudo_project_id=None):
         if session is None:
             raise ValueError("A session instance is required")
 
@@ -129,6 +136,7 @@ class Client(object):
             timeout=timeout,
             all_projects=all_projects,
             edit_managed=edit_managed,
+            hard_delete=hard_delete,
             sudo_project_id=sudo_project_id
         )
 
diff --git a/releasenotes/notes/add-hard-delete-option-for-zone-delete-e16652c8e72fc023.yaml b/releasenotes/notes/add-hard-delete-option-for-zone-delete-e16652c8e72fc023.yaml
new file mode 100644
index 0000000..2dade89
--- /dev/null
+++ b/releasenotes/notes/add-hard-delete-option-for-zone-delete-e16652c8e72fc023.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Added option``hard-delete`` for zone delete API. This will allow user to
+    delete zone-files on the backend when zone is deleted.