Fix regional clusters startup

cluster/gce/gci/configure-helper.sh

@@ -1352,6 +1352,7 @@ function start-kube-proxy {
 # $5: pod name, which should be either etcd or etcd-events
 function prepare-etcd-manifest {
   local host_name=${ETCD_HOSTNAME:-$(hostname -s)}
+  local host_ip=$(python -c "import socket;print(socket.gethostbyname(\"${host_name}\"))")
   local etcd_cluster=""
   local cluster_state="new"
   local etcd_protocol="http"
@@ -1380,6 +1381,7 @@ function prepare-etcd-manifest {
   sed -i -e "s@{{ *server_port *}}@$3@g" "${temp_file}"
   sed -i -e "s@{{ *cpulimit *}}@\"$4\"@g" "${temp_file}"
   sed -i -e "s@{{ *hostname *}}@$host_name@g" "${temp_file}"
+  sed -i -e "s@{{ *host_ip *}}@$host_ip@g" "${temp_file}"
   sed -i -e "s@{{ *srv_kube_path *}}@/etc/srv/kubernetes@g" "${temp_file}"
   sed -i -e "s@{{ *etcd_cluster *}}@$etcd_cluster@g" "${temp_file}"
   sed -i -e "s@{{ *liveness_probe_initial_delay *}}@${ETCD_LIVENESS_PROBE_INITIAL_DELAY_SEC:-15}@g" "${temp_file}"

cluster/gce/manifests/etcd.manifest

@@ -22,7 +22,7 @@
     "command": [
               "/bin/sh",
               "-c",
-              "if [ -e /usr/local/bin/migrate-if-needed.sh ]; then /usr/local/bin/migrate-if-needed.sh 1>>/var/log/etcd{{ suffix }}.log 2>&1; fi; exec /usr/local/bin/etcd --name etcd-{{ hostname }} --listen-peer-urls {{ etcd_protocol }}://127.0.0.1:{{ server_port }} --initial-advertise-peer-urls {{ etcd_protocol }}://{{ hostname }}:{{ server_port }} --advertise-client-urls http://127.0.0.1:{{ port }} --listen-client-urls http://127.0.0.1:{{ port }} {{ quota_bytes }} --data-dir /var/etcd/data{{ suffix }} --initial-cluster-state {{ cluster_state }} --initial-cluster {{ etcd_cluster }} {{ etcd_creds }} 1>>/var/log/etcd{{ suffix }}.log 2>&1"
+              "if [ -e /usr/local/bin/migrate-if-needed.sh ]; then /usr/local/bin/migrate-if-needed.sh 1>>/var/log/etcd{{ suffix }}.log 2>&1; fi; exec /usr/local/bin/etcd --name etcd-{{ hostname }} --listen-peer-urls {{ etcd_protocol }}://{{ host_ip }}:{{ server_port }} --initial-advertise-peer-urls {{ etcd_protocol }}://{{ hostname }}:{{ server_port }} --advertise-client-urls http://127.0.0.1:{{ port }} --listen-client-urls http://127.0.0.1:{{ port }} {{ quota_bytes }} --data-dir /var/etcd/data{{ suffix }} --initial-cluster-state {{ cluster_state }} --initial-cluster {{ etcd_cluster }} {{ etcd_creds }} 1>>/var/log/etcd{{ suffix }}.log 2>&1"
             ],
     "env": [
       { "name": "TARGET_STORAGE",