swarmデモ

#cloud-config

coreos:
  etcd2:
    # https://discovery.etcd.io/new?size=3
    discovery: https://discovery.etcd.io/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    advertise-client-urls: http://$private_ipv4:2379
    initial-advertise-peer-urls: http://$private_ipv4:2380
    listen-client-urls: http://0.0.0.0:2379
    listen-peer-urls: http://$private_ipv4:2380
  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start
  units:
    - name: timezone.service
      command: start
      content: |
        [Unit]
        Description=timezone
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/usr/bin/ln -sf ../usr/share/zoneinfo/Japan /etc/localtime

    - name: docker-tcp.socket
      command: start
      enable: true
      content: |
        [Unit]
        Description=Docker Socket for the API

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

        [Install]
        WantedBy=sockets.target

    - name: docker-pull-redis.service
      command: start
      content: |
        [Unit]
        Description=docker pull redis
        After=docker.service
        Requires=docker.service
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/usr/bin/docker pull redis

    - name: swarm-join.service
      command: start
      content: |
        [Unit]
        Description=swarm-join Container
        After=docker.service
        Requires=docker.service

        [Service]
        TimeoutStartSec=0
        Restart=always
        ExecStartPre=-/usr/bin/docker stop swarm-join
        ExecStartPre=-/usr/bin/docker rm swarm-join
        ExecStartPre=-/usr/bin/docker pull swarm
        ExecStart=/usr/bin/docker run --name=swarm-join swarm join --advertise=$private_ipv4:2375 etcd://$private_ipv4:2379/swarm

        [Install]
        WantedBy=multi-user.target

    - name: swarm-manage.service
      command: start
      content: |
        [Unit]
        Description=swarm-manage Container
        After=docker.service
        Requires=docker.service

        [Service]
        TimeoutStartSec=0
        Restart=always
        ExecStartPre=-/usr/bin/docker stop swarm-manage
        ExecStartPre=-/usr/bin/docker rm swarm-manage
        ExecStartPre=-/usr/bin/docker pull swarm
        ExecStart=/usr/bin/docker run --net=host --name=swarm-manage swarm manage -H :4000 --replication --strategy=binpack --advertise $private_ipv4:4000 etcd://$private_ipv4:2379/swarm

        [Install]
        WantedBy=multi-user.target