gistfile1.txt

#cloud-config

coreos:
  fleet:
    public-ip: $public_ipv4
    etcd_servers: http://172.17.8.100:2379
  units:
    - name: fleet.service
      command: start
    - name: docker-tcp.socket
      command: start
      enable: true
      content: |
        [Unit]
        Description=Docker Socket for the API

        [Socket]
        ListenStream=2375
        Service=docker.service
        BindIPv6Only=both

        [Install]
        WantedBy=sockets.target