Use only native cachable hostvars for etcd set_facts

roles/etcd/templates/etcd-proxy.j2

@@ -2,4 +2,4 @@ ETCD_DATA_DIR=/var/lib/etcd-proxy
 ETCD_PROXY=on
 ETCD_LISTEN_CLIENT_URLS={{ etcd_access_endpoint }}
 ETCD_NAME={{ etcd_proxy_member_name | default("etcd-proxy") }}
-ETCD_INITIAL_CLUSTER={% for host in groups['etcd'] %}etcd{{ loop.index|string }}={{ hostvars[host]['etcd_peer_url'] }}{% if not loop.last %},{% endif %}{% endfor %}
+ETCD_INITIAL_CLUSTER={{ etcd_peer_addresses }}

roles/etcd/templates/etcd.j2

@@ -13,4 +13,4 @@ ETCD_INITIAL_CLUSTER_TOKEN=k8s_etcd
 ETCD_LISTEN_PEER_URLS=http://{{ etcd_address }}:2380
 ETCD_NAME={{ etcd_member_name }}
 ETCD_PROXY=off
-ETCD_INITIAL_CLUSTER={% for host in groups['etcd'] %}etcd{{ loop.index|string }}={{ hostvars[host]['etcd_peer_url'] }}{% if not loop.last %},{% endif %}{% endfor %}
+ETCD_INITIAL_CLUSTER={{ etcd_peer_addresses }}

roles/kubernetes/preinstall/tasks/set_facts.yml

@@ -29,8 +29,7 @@
 - set_fact: etcd_endpoint="http://{{ etcd_authority }}"
 - set_fact:
     etcd_access_addresses: |-
-      {% for item in groups['etcd'] -%}
-        http://{{ hostvars[item].etcd_access_address }}:2379{% if not loop.last %},{% endif %}
+        http://{{ hostvars[item].access_ip | default(hostvars[item].ip | default(hostvars[item].ansible_default_ipv4['address'])) }}:2379{% if not loop.last %},{% endif %}
       {%- endfor %}
 - set_fact: etcd_access_endpoint="{% if etcd_multiaccess %}{{ etcd_access_addresses }}{% else %}{{ etcd_endpoint }}{% endif %}"
 - set_fact:
@@ -38,6 +37,11 @@
       {% for host in groups['etcd'] %}
       {%   if inventory_hostname == host %}{{"etcd"+loop.index|string }}{% endif %}
       {% endfor %}
+- set_fact:
+    etcd_peer_addresses: |-
+      {% for item in groups['etcd'] -%}
+        http://{{ hostvars[item].access_ip | default(hostvars[item].ip | default(hostvars[item].ansible_default_ipv4['address'])) }}:2380{% if not loop.last %},{% endif %}
+      {%- endfor %}
 - set_fact:
     etcd_proxy_member_name: |-
       {% for host in groups['k8s-cluster'] %}