systemd mounting and formatting

gistfile1.txt

systemd:
  units:
    - name: format-ebs.service
      command: start
      contents: |
        [Unit]
        Description=Formats EBS /dev/xvdb volume
        After=dev-xvdb.device
        Requires=dev-xvdb.device
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/usr/sbin/wipefs -f /dev/xvdb
        ExecStart=/usr/sbin/mkfs.ext4 /dev/xvdb
    - name: var-lib-etcd.mount
      command: start
      contents: |
        [Unit]
        Description=Mount EBS to /var/lib/etcd
        Requires=format-ebs.service
        After=format-ebs.service
        [Mount]
        What=/dev/xvdb
        Where=/var/lib/etcd
        Type=ext4
        [Install]
        WantedBy=multi-user.target
    - name: etcd-member.service
      dropins:
        - name: 10-wait-etcd-member.conf
          contents: |
            [Unit]
            After=var-lib-etcd.mount
            Requires=var-lib-etcd.mount