Bump default k8s version to 1.7.3

Change-Id: I9e2127d29460f05f94f4007f378c664c2f032e6a
Reviewed-on: https://review.gerrithub.io/375978
Reviewed-by: Dennis Dmitriev <dis.xcom@gmail.com>
Tested-by: Dennis Dmitriev <dis.xcom@gmail.com>
diff --git a/tcp_tests/settings_oslo.py b/tcp_tests/settings_oslo.py
index ecc5b8d..9013df9 100644
--- a/tcp_tests/settings_oslo.py
+++ b/tcp_tests/settings_oslo.py
@@ -240,7 +240,7 @@
            default='sbPfel23ZigJF3Bm'),
     ct.Cfg('kubernetes_docker_package', ct.String(), default=''),
     ct.Cfg('kubernetes_hyperkube_image', ct.String(),
-           default='{}/mirantis/kubernetes/hyperkube-amd64:v1.6.4-3'.format(
+           default='{}/mirantis/kubernetes/hyperkube-amd64:v1.7.3-1'.format(
                settings.DOCKER_REGISTRY)),
     ct.Cfg('kubernetes_calico_image', ct.String(),
            default='{}/mirantis/projectcalico/calico/node:latest'.format(
@@ -280,7 +280,7 @@
            default=False),
     ct.Cfg('k8s_conformance_image', ct.String(),
            default='docker-dev-virtual.docker.mirantis.net/mirantis/'
-                   'kubernetes/k8s-conformance:v1.6.4-3_1495550936267')
+                   'kubernetes/k8s-conformance:v1.7.3-1_1503652362277')
 ]
 
 _group_opts = [