DevOps: Setup swap file for better memory management | Ubuntu 16.04 | EasyEngine

swap.sh

#! /usr/bin/env bash
swapoff -a
dd if=/dev/zero of=/swapfile bs=1M count=1024
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile

# nano /etc/fstab
#st /etc/fstab
# Add this line at the bottom
#/swapfile   none    swap    sw    0   0

echo "/swapfile   none    swap    sw    0   0" >> /etc/fstab

# Now if you run out of RAM, it will use SWAP instead (SSD drive as temporary RAM)

# nano /etc/sysctl.conf
st /etc/sysctl.conf

# Add or Update if present the following
# vm.swappiness = 10
# vm.vfs_cache_pressure = 50

# Finally then push the updates for sysctl
sudo sysctl -p