diff --git a/releasenotes/notes/deprecate-dns_servers-option-0xf2f297ee47a5ff.yaml b/releasenotes/notes/deprecate-dns_servers-option-0xf2f297ee47a5ff.yaml
new file mode 100644
index 0000000..30551cb
--- /dev/null
+++ b/releasenotes/notes/deprecate-dns_servers-option-0xf2f297ee47a5ff.yaml
@@ -0,0 +1,6 @@
+---
+deprecations:
+  - |
+    The config option ``CONF.network.dns_servers`` is no longer used
+    anywhere, so it is deprecated and will be removed in the future.
+
diff --git a/tempest/config.py b/tempest/config.py
index 24ae3ae..f692a4b 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -685,7 +685,10 @@
     cfg.ListOpt('dns_servers',
                 default=["8.8.8.8", "8.8.4.4"],
                 help="List of dns servers which should be used"
-                     " for subnet creation"),
+                     " for subnet creation",
+                deprecated_for_removal=True,
+                deprecated_reason="This config option is no longer "
+                                  "used anywhere, so it can be removed."),
     cfg.StrOpt('port_vnic_type',
                choices=[None, 'normal', 'direct', 'macvtap'],
                help="vnic_type to use when launching instances"
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index d09f20c..86d37f1 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -346,8 +346,10 @@
     def create_volume_type(self, client=None, name=None, backend_name=None):
         if not client:
             client = self.os_admin.volume_types_client_latest
-        randomized_name = name or data_utils.rand_name(
-            'volume-type-' + self.__class__.__name__)
+        if not name:
+            class_name = self.__class__.__name__
+            name = data_utils.rand_name(class_name + '-volume-type')
+        randomized_name = data_utils.rand_name('scenario-type-' + name)
 
         LOG.debug("Creating a volume type: %s on backend %s",
                   randomized_name, backend_name)
diff --git a/tools/tempest-plugin-sanity.sh b/tools/tempest-plugin-sanity.sh
index 703dce2..500ff02 100644
--- a/tools/tempest-plugin-sanity.sh
+++ b/tools/tempest-plugin-sanity.sh
@@ -46,7 +46,6 @@
 # List of projects having tempest plugin stale or unmaintained for a long time
 # (6 months or more)
 # TODO(masayukig): Some of these can be removed from BLACKLIST in the future.
-# airship-tempest-plugin: https://review.openstack.org/#/c/634387/
 # barbican-tempest-plugin: https://review.openstack.org/#/c/634631/
 # intel-nfv-ci-tests: https://review.openstack.org/#/c/634640/
 # networking-ansible: https://review.openstack.org/#/c/634647/
@@ -61,7 +60,6 @@
 # valet: https://review.openstack.org/#/c/638339/
 # vitrage-tempest-plugin: https://review.openstack.org/#/c/639003/
 BLACKLIST="
-airship-tempest-plugin
 barbican-tempest-plugin
 intel-nfv-ci-tests
 networking-ansible
@@ -94,7 +92,7 @@
 # function to create virtualenv to perform sanity operation
 function prepare_workspace() {
     SANITY_DIR=$(pwd)
-    virtualenv --clear "$SANITY_DIR"/.venv
+    virtualenv -p python3 --clear "$SANITY_DIR"/.venv
     export TVENV="$SANITY_DIR/tools/with_venv.sh"
     cd "$SANITY_DIR"
 
diff --git a/tox.ini b/tox.ini
index 230249f..9bee3dd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -265,6 +265,7 @@
 
 [testenv:plugin-sanity-check]
 # perform tempest plugin sanity
+basepython = python3
 whitelist_externals = bash
 commands =
   bash tools/tempest-plugin-sanity.sh