Template for offline image with build-id

run test:

./tcp_tests/templates/virtual-mcp-ocata-ceph-offline/run_test.sh

Change-Id: Ie0a74b81720be100dc6e99716759b2768087a9c9
diff --git a/tcp_tests/settings_oslo.py b/tcp_tests/settings_oslo.py
index bb03f8e..0b69c58 100644
--- a/tcp_tests/settings_oslo.py
+++ b/tcp_tests/settings_oslo.py
@@ -303,8 +303,8 @@
     ct.Cfg("k8s_conformance_run", ct.Boolean(),
            default=False),
     ct.Cfg('k8s_conformance_image', ct.String(),
-           default='docker-dev-virtual.docker.mirantis.net/mirantis/'
-                   'kubernetes/k8s-conformance:v1.7.5-2_1515625946151')
+           default='docker-prod-virtual.docker.mirantis.net/mirantis/'
+                   'kubernetes/k8s-conformance:v1.7.5-2')
 ]
 
 _group_opts = [