Custom etcd role

roles/etcd/templates/etc/systemd/system/etcd.service.j2

@@ -0,0 +1,24 @@
+#jinja2: trim_blocks:False
+{%- macro cluster_hosts() -%}
+{%- for host in groups['k8s_etcd'] -%}
+{{hostvars[host]['ansible_hostname']}}=https://{{hostvars[host]['ansible_' + etcd_interface].ipv4.address}}:{{etcd_peer_port}}{% if not loop.last %},{% endif %}
+{%- endfor -%} 
+{%- endmacro -%}
+
+{%- set x=etcd_settings.__setitem__('initial-cluster',cluster_hosts()) -%}
+
+[Unit]
+Description=etcd
+Documentation=https://github.com/coreos
+
+[Service]
+ExecStart={{etcd_bin_dir}}/etcd \
+{%- for setting in etcd_settings|sort %}
+  --{{setting}}="{{etcd_settings[setting]}}" {% if not loop.last %}\{% endif %}
+{%- endfor %}
+Restart=on-failure
+RestartSec=5
+Type=notify
+
+[Install]
+WantedBy=multi-user.target