diff --git a/tempest/api/compute/admin/test_auto_allocate_network.py b/tempest/api/compute/admin/test_auto_allocate_network.py
index c4db5e3..ba8a214 100644
--- a/tempest/api/compute/admin/test_auto_allocate_network.py
+++ b/tempest/api/compute/admin/test_auto_allocate_network.py
@@ -151,7 +151,7 @@
         """Tests that no networking is allocated for the server."""
         # create the server with no networking
         server, _ = compute.create_test_server(
-            self.os, networks='none', wait_until='ACTIVE')
+            self.os_primary, networks='none', wait_until='ACTIVE')
         self.addCleanup(self.delete_server, server['id'])
         # get the server ips
         addresses = self.servers_client.list_addresses(
@@ -176,7 +176,7 @@
         # - Third request sees net1 and net2 for the tenant and fails with a
         #   NetworkAmbiguous 400 error.
         _, servers = compute.create_test_server(
-            self.os, networks='auto', wait_until='ACTIVE',
+            self.os_primary, networks='auto', wait_until='ACTIVE',
             min_count=3)
         server_nets = set()
         for server in servers:
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 141b9f3..c9d6f02 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -204,7 +204,7 @@
             kwargs['name'] = data_utils.rand_name(cls.__name__ + "-server")
         tenant_network = cls.get_tenant_network()
         body, servers = compute.create_test_server(
-            cls.os,
+            cls.os_primary,
             validatable,
             validation_resources=cls.validation_resources,
             tenant_network=tenant_network,
diff --git a/tempest/api/compute/servers/test_attach_interfaces.py b/tempest/api/compute/servers/test_attach_interfaces.py
index e50b29a..6c5cc79 100644
--- a/tempest/api/compute/servers/test_attach_interfaces.py
+++ b/tempest/api/compute/servers/test_attach_interfaces.py
@@ -264,7 +264,8 @@
 
         # create two servers
         _, servers = compute.create_test_server(
-            self.os, tenant_network=network, wait_until='ACTIVE', min_count=2)
+            self.os_primary, tenant_network=network,
+            wait_until='ACTIVE', min_count=2)
         # add our cleanups for the servers since we bypassed the base class
         for server in servers:
             self.addCleanup(self.delete_server, server['id'])
diff --git a/tempest/api/compute/servers/test_multiple_create.py b/tempest/api/compute/servers/test_multiple_create.py
index 7cbb513..059454d 100644
--- a/tempest/api/compute/servers/test_multiple_create.py
+++ b/tempest/api/compute/servers/test_multiple_create.py
@@ -24,7 +24,7 @@
     def test_multiple_create(self):
         tenant_network = self.get_tenant_network()
         body, servers = compute.create_test_server(
-            self.os,
+            self.os_primary,
             wait_until='ACTIVE',
             min_count=2,
             tenant_network=tenant_network)
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index 3f33c7b..eace92d 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -224,7 +224,7 @@
 
         tenant_network = self.get_tenant_network()
         body, _ = compute.create_test_server(
-            self.os,
+            self.os_primary,
             tenant_network=tenant_network,
             name=name,
             **kwargs)