#cloud-config

groups:
  - docker: [root,vagrant]
write_files:
  - content: |
      [Unit]
      Description=Docker TCP Socket for the API

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

      [Install]
      WantedBy=sockets.target
    path: /etc/systemd/system/docker-tcp.socket
    owner: root:root
    permissions: '0644'
  - content: |
      [Unit]
      Description=Docker Socket for the API
      PartOf=docker.service

      [Socket]
      ListenStream=/var/run/docker.sock
      SocketMode=0660
      SocketUser=root
      SocketGroup=docker

      [Install]
      WantedBy=sockets.target
    path: /lib/systemd/system/docker.socket
    owner: root:root
    permissions: '0644'
  - content: |
      [Unit]
      Description=Docker Daemon

      [Service]
      ExecStart=/bin/docker -d -H fd:// -s overlay
      ExecReload=/bin/kill -HUP $MAINPID
      KillMode=process
      Restart=always

      [Install]
      WantedBy=multi-user.target
    path: /lib/systemd/system/docker.service
    owner: root:root
    permissions: '0644'
runcmd:
  - systemctl daemon-reload
  - systemctl enable docker.socket
  - systemctl enable docker-tcp.socket
  - systemctl stop docker.service
  - systemctl start docker-tcp.socket
  - systemctl start docker.socket