Merge pull request #2876 from neith00/docker_iptables

parametrized iptables options for docker daemon

inventory/sample/group_vars/k8s-cluster.yml

@@ -140,6 +140,9 @@ dns_domain: "{{ cluster_name }}"
 # Path used to store Docker data
 docker_daemon_graph: "/var/lib/docker"
 
+## Used to set docker daemon iptables options to true
+#docker_iptables_enabled: "true"
+
 ## A string of extra options to pass to the docker daemon.
 ## This string should be exactly as you wish it to appear.
 ## An obvious use case is allowing insecure-registry access