Question: Create 1 GB of Luks encrypted volume using device /dev/sdd
		- Name should be mysecret mounted persistently on /secretdir
		- Use the passphrase: Welcome@321
		- Automate LuksOpen by default

Solution:

lsblk

fdisk /dev/sdd

lsblk

cryptsetup luksFormat /dev/sdd1
	- YES
	- Welcome@321
	- Welcome@321

cryptsetup luksOpen /dev/sdd1 mysecret
	- Welcome@321

mkfs.xfs /dev/mapper/mysecret

# To automate
vim /etc
	mysecret	/dev/sdd1	none

mkdir /secretdir

vim /etc/fstab
	/dev/mapper/mysecret	/secretdir		xfs	defaults	0 0

mount -a

systemctl daemon-reload 

df -h

# Reboot to verify
# Enter password when promted while system is booting
