#cloud-config
merge_how: dict(recurse_array)+list(append)
write_files:
  - path: /etc/systemd/system/swarm-agent.service
    owner: "root:root"
    permissions: "0644"
    content: |
      [Unit]
      Description=Swarm Agent
      After=docker.service
      Requires=docker.service

      [Service]
      TimeoutStartSec=0
      ExecStartPre=-/usr/bin/docker kill swarm-agent
      ExecStartPre=-/usr/bin/docker rm swarm-agent
      ExecStartPre=/usr/bin/docker pull swarm:0.2.0
      #TODO: roll-back from swarm:0.2.0 to swarm if atomic image can work with latest swarm image
      ExecStart=/usr/bin/docker run --name swarm-agent swarm:0.2.0 join --addr $NODE_IP:2375 $DISCOVERY_URL
      ExecStop=/usr/bin/docker stop swarm-agent
      ExecStartPost=/usr/bin/curl -sf -X PUT -H 'Content-Type: application/json' \
        --data-binary '{"Status": "SUCCESS", "Reason": "Setup complete", "Data": "OK", "UniqueId": "00000"}' \
        "$WAIT_HANDLE"

      [Install]
      WantedBy=multi-user.target