scottslowe-learning-tools/centos-atomic/docker-cloudinit/cloud-config.yml

#cloud-config
# vim: syntax=yaml

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

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

      [Install]
      WantedBy=sockets.target
    path: /etc/systemd/system/docker.socket
    owner: root:root
    permissions: '0644'
  - content: |
      [Unit]
      Description=TCP Socket for the Docker 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: |
      [Service]
      ExecStart=
      ExecStart=/usr/bin/dockerd-current -H fd:// \
                --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current \
                --default-runtime=docker-runc \
                --exec-opt native.cgroupdriver=systemd \
                --userland-proxy-path=/usr/libexec/docker/docker-proxy-current \
                $OPTIONS \
                $DOCKER_STORAGE_OPTIONS \
                $DOCKER_NETWORK_OPTIONS \
                $ADD_REGISTRY \
                $BLOCK_REGISTRY \
                $INSECURE_REGISTRY
    path: /etc/systemd/system/docker.service.d/docker-socket.conf
    owner: root:root
    permissions: '0644'
runcmd:
  - [ systemctl, start, docker-storage-setup ]
  - [ systemctl, mask, docker-storage-setup ]
  - [ systemctl, daemon-reload ]
  - [ systemctl, enable, docker.service ]
  - [ systemctl, enable, docker.socket ]
  - [ systemctl, enable, docker-tcp.socket ]
  - [ systemctl, stop, docker.service ]
  - [ systemctl, start, docker.socket ]
  - [ systemctl, start, docker-tcp.socket ]
  - [ systemctl, start, docker.service ]