I run a cloud VPS with Centos 7 installed. Unfortunately, I could not customize disk partitions during installation so now I have no free space in the volume group automatically created because it is completely used by two logical volumes: swap and root. I would like to reduce root size and create some space for managing LVM snapshots but I know that on XFS file systems there are no chances to shrink a partition. Can I do anything?
The server is currently in production, so I cannot reinstall the system, but even so, I could not customize partitions because it is an automatic procedure.