Create swap on EBS Instance Storage

gistfile1.txt

# Check for existing swaps:
swapon -s


# None listed? Then go for it!

# Create ~8GB empty file
sudo dd if=/dev/zero of=/mnt/swapfile bs=1M count=8192

# Lock it down
sudo chown root:root /mnt/swapfile
sudo chmod 600 /mnt/swapfile

# Turn it into a swapfile
sudo mkswap /mnt/swapfile
sudo swapon /mnt/swapfile

# Update system
sudo echo "/mnt/swapfile swap swap defaults 0 0" >> /etc/fstab
swapon -a

# Check it's all good
swapon -s