example coreos cloud-config

#cloud-config

ssh_authorized_keys:
  - ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwbkJky1DezPNw6mCN4MXb4sz7kq5Jjh0+RamokaRIR7PGZQ8lL/F2ZR+tjdc/RMm60442cz8yuM7LBC1ys9nJzexl50WuaX2jq8T+LhQIXaUWPWjlpMV/LKbKN3wCztEJIgXH/ZwpPwe4AgmC9hLe7wL1p4RBlqzyargill4TlAO3xBgEHlGNoJH08BLoIyj4s7wXnWaEtb/yqkH3VEfL1+PrI6f3NLvqSxPO2JockqrnywLAXhq7/Xu9ENfDGS0kCQn1v/VMfGJm7gnX53Tw/2liL/+r06AhHAJLvO+otbZu9MT1F8EmTFfmFemrewGW6T8Ypkco/nQBKfGLUHwYw== pete

coreos:
  etcd:
    # generate a new token for each unique cluster from https://discovery.etcd.io/new
    # uncomment the following line and replace it with your discovery URL
    # discovery: SOME_DISCOVERY_URL
    addr: $private_ipv4:4001
    peer-addr: $private_ipv4:7001
  units:
  - name: docker.service
    content: |
      [Unit]
      Description=Docker Application Container Engine
      Documentation=http://docs.docker.io

      [Service]
      ExecStartPre=/bin/mount --make-rprivate /
      # Run docker but don't have docker automatically restart
      # containers. This is a job for systemd and unit files.
      ExecStart=/usr/bin/docker -d -s=btrfs -r=false -H fd://

      [Install]
      WantedBy=multi-user.target
  - name: docker-tcp.socket
    command: start
    content: |
      [Unit]
      Description=Docker Socket for Remote API

      [Socket]
      ListenStream=4243
      Service=docker.service
      BindIPv6Only=both

      [Install]
      WantedBy=sockets.target
  - name: etcd.service
    command: start
  - name: fleet.service
    command: start
    content: |
      [Unit]
      Description=fleet

      [Service]
      Environment=FLEET_PUBLIC_IP=$private_ipv4
      ExecStart=/usr/bin/fleet
  - path: /etc/environment
    content: |
      COREOS_PUBLIC_IPV4={{ INSTANCE_PUBLIC_IPV4 }}
      COREOS_PRIVATE_IPV4={{ INSTANCE_PUBLIC_IPV4 }}