cloud-init-vagrant.yml

#cloud-config
coreos:
  etcd2:
    discovery: https://discovery.etcd.io/<token>
    advertise-client-urls: http://$private_ipv4:2379, http://$private_ipv4:4001
    initial-advertise-peer-urls: http://$private_ipv4:2380
    listen-client-urls: http://0.0.0.0:2379, http://0.0.0.0:4001
    listen-peer-urls: http://$private_ipv4:2380, http://$private_ipv4:7001

  fleet:
    public-ip: $public_ipv4

  flannel:
    interface: $public_ipv4

  units:
    - name: flanneld.service
      drop-ins:
        - name: 50-network-config.conf
          content: |
            [Service]
            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{ "Network": "172.20.0.0/16", "Backend": {"Type": "vxlan"} }'
      command: start

    - name: etcd2.service
      command: start

    - name: fleet.service
      command: start

    - name: mk-docker-dns-opts.service
      content: |
        [Unit]
        Requires=flanneld.service
        After=flanneld.service
        [Service]
        Type=oneshot
        ExecStart=/bin/bash -c 'echo $(grep FLANNEL_SUBNET /run/flannel/subnet.env | sed "s/.*=/DOCKER_OPT_DNS=\\\"--dns=/;s_/.*_\\\"_") >/run/docker_dns_opt.env'
      command: start

    - name: docker.service
      command: start
      drop-ins:
        - name: 50-mk-docker-dns-opts.conf
          content: |
            [Unit]
            Requires=mk-docker-dns-opts.service
            After=mk-docker-dns-opts.service
            [Service]
            EnvironmentFile=/run/docker_dns_opt.env
            ExecStart=
            ExecStart=/usr/lib/coreos/dockerd --daemon --host=fd:// $DOCKER_OPTS $DOCKER_OPT_DNS $DOCKER_OPT_BIP $DOCKER_OPT_MTU $DOCKER_OPT_IPMASQ

    - 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