Handling AWS Spot Instance Termination Notices

AWS_SpotTerminationNotifier.sh

#!/bin/bash
# AWS Instance Termination Notice Handler
# Based on: https://blog.fugue.co/2015-01-06-spot-termination-notices.html

while true; do
    # get meta-data HTTP headers
    HEADER=$(curl -Is http://169.254.169.254/latest/meta-data/spot/termination-time)

    # HTTP 404 - not marked for termination
    if [ -z $(echo $HEADER | head -1 | grep 404 | cut -d \  -f 2) ]; then
        echo "Running shutdown hook."
        # Call your shutdown script here.
        break
    else
        # Spot instance not yet marked for termination.
        echo "Spot instance not yet marked for termination."
        sleep 5
    fi
done