Variablize kube_proxy_healthz_bind_address

This fixes #3014

roles/kubernetes/node/defaults/main.yml

@@ -14,6 +14,9 @@ kubelet_bind_address: "{{ ip | default('0.0.0.0') }}"
 # resolv.conf to base dns config
 kube_resolv_conf: "/etc/resolv.conf"
 
+# bind address for kube-proxy health check
+kube_proxy_healthz_bind_address: "127.0.0.1"
+
 # Can be ipvs, iptables
 kube_proxy_mode: iptables
 

roles/kubernetes/node/templates/manifests/kube-proxy.manifest.j2

@@ -42,7 +42,7 @@ spec:
     - --cluster-cidr={{ kube_pods_subnet }}
     - --proxy-mode={{ kube_proxy_mode }}
     - --oom-score-adj=-998
-    - --healthz-bind-address=127.0.0.1
+    - --healthz-bind-address={{ kube_proxy_healthz_bind_address }}
 {% if kube_proxy_masquerade_all and kube_proxy_mode == "iptables" %}
     - --masquerade-all
 {% elif kube_proxy_mode == 'ipvs' %}