# Setup Swapfile

Create a file with 1GB size for the swap

fallocate -l 1G /swapfile

Change the permissions to read and write of the swapfile

chmod 600 /swapfile

Create the Swaparea in the file

mkswap /swapfile

Add the Swapfile to the /etc/fstab

echo "/swapfile swap swap defaults 0 0" >> /etc/fstab

Import the Swapfile

mount -a

Check if the Swapfile is correctly imported

sudo swapon --show

Output
NAME      TYPE  SIZE   USED PRIO
/swapfile file 1024M 100.7M   -1