Swap file setup on Rocky 9

setup_swap.sh

#!/bin/bash

# Digital Ocean Source: https://www.digitalocean.com/community/tutorials/how-to-add-swap-space-on-rocky-linux-9

sudo fallocate -l 5G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon --show
sudo cp /etc/fstab /etc/fstab.bak

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

sudo sysctl vm.swappiness=10
sudo sysctl vm.vfs_cache_pressure=50

echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf
echo 'vm.vfs_cache_pressure=50' | sudo tee -a /etc/sysctl.conf

ls -lh /swapfile
free -h