[ovirt-users] How to configure the cloud-init scripts?

My VM's system is centos7，I have configured the hostname and IP address successfully through the cloud-init. But I dont know how to configure the custom script，Is here anyone can help me？ For example： I want to format the disk-sdb，then mount it on /data. ''' 3 steps mkfs.xfs /dev/sdb mount /dev/sdb /data echo"/dev/sdb /data xfs defaults 0 0" >>/etc/fstab ''' How do I write this script? zhouhao(a)vip.friendtimes.net