How do I make cloud-init startup scripts run every time my EC2 instance boots?

Question

I have an EC2 instance running an AMI based on the Amazon Linux AMI. Like all such AMIs, it supports the cloud-init system for running startup scripts based on the User Data

Answer 1

In /etc/init.d/cloud-init-user-scripts, edit this line:

/usr/bin/cloud-init-run-module once-per-instance user-scripts execute run-parts ${SCRIPT_DIR} >/dev/null && success || failure

to

 /usr/bin/cloud-init-run-module always user-scripts execute run-parts ${SCRIPT_DIR} >/dev/null && success || failure

Good luck !