gistfile1.txt

"coreos:\n",
"  etcd:\n",
"    discovery: ", {"Ref": "DiscoveryURL"}, "\n",
"    addr: $public_ipv4:4001\n",
"    peer-addr: $private_ipv4:7001\n",
"  units:\n",
"    - name: etcd.service\n",
"      command: start\n",
"    - name: fleet.service\n",
"      command: start\n",
"    - name: flanneld.service\n",
"      drop-ins:\n",
"        - name: 50-network-config.conf\n",
"          content: |\n",
"            [Service]\n",
"            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{ \"Network\": \"10.255.0.0/16\", \"Backend\": {\"Type\": \"vxlan\"}}'\n",
"      command: start\n"