Refactor k8s images.

Related: PROD-19359

Change-Id: I3288e6f6be9f11dc932077a310a66a08727c8cc5
diff --git a/kubernetes/master/single.yml b/kubernetes/master/single.yml
index 2b67bd5..7fada57 100644
--- a/kubernetes/master/single.yml
+++ b/kubernetes/master/single.yml
@@ -2,11 +2,10 @@
 - service.kubernetes.master.single
 parameters:
   _param:
-    kubernetes_netchecker_agent_image: mirantis/k8s-netchecker-agent:v1.2.2
-    kubernetes_netchecker_server_image: mirantis/k8s-netchecker-server:v1.2.2
-    aptly_server_hostname: apt
-    kubernetes_netchecker_agent_image_local: ${_param:aptly_server_hostname}:5000/mirantis/k8s-netchecker-agent:v1.2.2
-    kubernetes_netchecker_server_image_local: ${_param:aptly_server_hostname}:5000/mirantis/k8s-netchecker-server:v1.2.2
+    kubernetes_netchecker_agent_repo: mirantis
+    kubernetes_netchecker_server_repo: mirantis
+    kubernetes_netchecker_agent_image: ${_param:kubernetes_netchecker_agent_repo}/k8s-netchecker-agent:v1.2.2
+    kubernetes_netchecker_server_image: ${_param:kubernetes_netchecker_server_repo}/k8s-netchecker-server:v1.2.2
   kubernetes:
     master:
       container: false