Fix passwords.yml generation when parent directory doesn't exist

Fixes an issue where generation of passwords.yml for Kolla Ansible
could fail if the directory containing the file does not exist. This is
typical in a multiple environment setup, when creating a new
environment.

Story: 2010293
Task: 46275
Closes-Bug: #2015093
Change-Id: I9dce73a8a205c0c0ad02eba3a10e02b82f5b191d

ansible/roles/kolla-ansible/library/kolla_passwords.py

@@ -22,6 +22,7 @@ short_description: Generates a kolla-ansible passwords file
 
 from ansible.module_utils.basic import *
 
+import os
 import os.path
 import shutil
 import tempfile
@@ -154,6 +155,8 @@ def kolla_passwords(module):
             checksum_temp_file = module.sha1(temp_file_path)
             changed = checksum_dest != checksum_temp_file
         else:
+            os.makedirs(os.path.dirname(module.params['dest']),
+                        exist_ok=True)
             changed = True
 
         # Encrypt the file.

releasenotes/notes/fix-kolla-passwords-f1b5d051c494b4d8.yaml

@@ -0,0 +1,8 @@
+---
+fixes:
+  - |
+    Fixes an issue where generation of ``passwords.yml`` for Kolla Ansible
+    could fail if the directory containing the file does not exist. This is
+    typical in a multiple environment setup, when creating a new environment.
+    See `story 2010293 <https://storyboard.openstack.org/#!/story/2010293>`_
+    for details.