Don't call the apiserver when the server is master only

roles/kubernetes/node/templates/kubelet.j2

@@ -7,7 +7,9 @@ KUBE_LOGGING="--logtostderr=true"
 {% endif %}
 KUBE_LOG_LEVEL="--v={{ kube_log_level | default('2') }}"
 KUBE_ALLOW_PRIV="--allow_privileged=true"
+{% if inventory_hostname in groups['kube-node'] %}
 KUBELET_API_SERVER="--api_servers={% for host in groups['kube-master'] %}https://{{ hostvars[host]['access_ip'] | default(hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address'])) }}:{{ kube_apiserver_port }}{% if not loop.last %},{% endif %}{% endfor %}"
+{% endif %}
 # The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces)
 KUBELET_ADDRESS="--address=0.0.0.0"
 # The port for the info server to serve on