fix apply for netchecker upgrade (#1659)

* fix apply for netchecker upgrade and graceful upgrade

* Speed up daemonset upgrades. Make check wait for ds upgrades.

roles/kubernetes-apps/ansible/tasks/netchecker.yml

@@ -10,6 +10,7 @@
   kube:
     name: "netchecker-server"
     namespace: "{{ netcheck_namespace }}"
+    filename: "{{ netchecker_server_manifest.stat.path }}"
     kubectl: "{{bin_dir}}/kubectl"
     resource: "deploy"
     state: latest