diff --git a/tempest/tempest_ext.conf b/tempest/tempest_ext.conf
index 5a73965..6d55002 100644
--- a/tempest/tempest_ext.conf
+++ b/tempest/tempest_ext.conf
@@ -1,4 +1,7 @@
 [compute]
+flavor_ref = 1
+flavor_ref_alt = 2
+image_ref = ${IMAGE_REF}
 image_ref_alt = ${IMAGE_REF2}
 min_microversion = 2.1
 max_microversion = latest
@@ -25,15 +28,15 @@
 project_domain_name = Default
 user_domain_name = Default
 endpoint_type = internal
-instance_type = m1.tiny
-minimal_instance_type = m1.tiny
+instance_type = cvp.tiny
+minimal_instance_type = cvp.tiny
 network_for_ssh = ${PUBLIC_NET}
 floating_network_name = ${PUBLIC_NET}
-fixed_subnet_name = ${FIXED_SUBNET_NAME}
+fixed_subnet_name = cvp.subnet.1
 disable_ssl_certificate_validation = True
-image_ref = ${IMAGE_NAME2}
-minimal_image_ref = ${IMAGE_NAME2}
-fixed_network_name = ${FIXED_NET}
+image_ref = cvp.tiny
+minimal_image_ref = cvp.cirros.35
+fixed_network_name = cvp.net.1
 build_timeout = 180
 ssh_timeout = 30
 boot_config_env = /home/rally/boot_config_none_env.yaml