diff --git a/charmhelpers/contrib/hahelpers/cluster.py b/charmhelpers/contrib/hahelpers/cluster.py
index 146beba6..85a9917f 100644
--- a/charmhelpers/contrib/hahelpers/cluster.py
+++ b/charmhelpers/contrib/hahelpers/cluster.py
@@ -221,6 +221,13 @@ def https():
         return True
     if config_get('ssl_cert') and config_get('ssl_key'):
         return True
+    # Local import to avoid ciruclar dependency.
+    import charmhelpers.contrib.openstack.cert_utils as cert_utils
+    if (
+        cert_utils.get_certificate_request() and not
+        cert_utils.get_requests_for_local_unit("certificates")
+    ):
+        return False
     for r_id in relation_ids('certificates'):
         for unit in relation_list(r_id):
             ca = relation_get('ca', rid=r_id, unit=unit)
diff --git a/charmhelpers/contrib/network/ip.py b/charmhelpers/contrib/network/ip.py
index de56584d..f8edf37a 100644
--- a/charmhelpers/contrib/network/ip.py
+++ b/charmhelpers/contrib/network/ip.py
@@ -467,7 +467,7 @@ def ns_query(address):
 
     try:
         answers = dns.resolver.query(address, rtype)
-    except dns.resolver.NXDOMAIN:
+    except (dns.resolver.NXDOMAIN, dns.resolver.NoNameservers):
         return None
 
     if answers:
diff --git a/charmhelpers/fetch/ubuntu.py b/charmhelpers/fetch/ubuntu.py
index e6f8a0ad..e972511a 100644
--- a/charmhelpers/fetch/ubuntu.py
+++ b/charmhelpers/fetch/ubuntu.py
@@ -222,6 +222,10 @@ CLOUD_ARCHIVE_POCKETS = {
     'yoga/proposed': 'focal-proposed/yoga',
     'focal-yoga/proposed': 'focal-proposed/yoga',
     'focal-proposed/yoga': 'focal-proposed/yoga',
+
+    # OVN
+    'focal-ovn-22.03': 'focal-updates/ovn-22.03',
+    'focal-ovn-22.03/proposed': 'focal-proposed/ovn-22.03',
 }
 
 
@@ -677,6 +681,7 @@ def add_source(source, key=None, fail_invalid=False):
         (r"^cloud-archive:(.*)$", _add_apt_repository),
         (r"^((?:deb |http:|https:|ppa:).*)$", _add_apt_repository),
         (r"^cloud:(.*)-(.*)\/staging$", _add_cloud_staging),
+        (r"^cloud:(.*)-(ovn-.*)$", _add_cloud_distro_check),
         (r"^cloud:(.*)-(.*)$", _add_cloud_distro_check),
         (r"^cloud:(.*)$", _add_cloud_pocket),
         (r"^snap:.*-(.*)-(.*)$", _add_cloud_distro_check),
@@ -740,6 +745,11 @@ def _add_apt_repository(spec):
                       )
 
 
+def __write_sources_list_d_actual_pocket(file, actual_pocket):
+    with open('/etc/apt/sources.list.d/{}'.format(file), 'w') as apt:
+        apt.write(CLOUD_ARCHIVE.format(actual_pocket))
+
+
 def _add_cloud_pocket(pocket):
     """Add a cloud pocket as /etc/apt/sources.d/cloud-archive.list
 
@@ -759,8 +769,9 @@ def _add_cloud_pocket(pocket):
             'Unsupported cloud: source option %s' %
             pocket)
     actual_pocket = CLOUD_ARCHIVE_POCKETS[pocket]
-    with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as apt:
-        apt.write(CLOUD_ARCHIVE.format(actual_pocket))
+    __write_sources_list_d_actual_pocket(
+        'cloud-archive{}.list'.format('' if 'ovn' not in pocket else '-ovn'),
+        actual_pocket)
 
 
 def _add_cloud_staging(cloud_archive_release, openstack_release):