azure-user-data-template

#cloud-config
coreos:
  units:
    - name: format-ephemeral.service
      command: start
      content: |
        [Unit]
        Description=Formats the ephemeral drive
        ConditionPathExists=!/etc/azure-formatted
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/usr/sbin/wipefs -f /dev/sdc
        ExecStart=/usr/sbin/mkfs.btrfs -f /dev/sdc
        ExecStart=/bin/touch /etc/azure-formatted
    - name: var-lib-docker.mount
      command: start
      content: |
        [Unit]
        Description=Mount ephemeral to /var/lib/docker
        Requires=format-ephemeral.service
        After=format-ephemeral.service
        Before=docker.service
        [Mount]
        What=/dev/sdc
        Where=/var/lib/docker
        Type=btrfs