Restarting EC2 Apache instance on CloudWatchAlarm

Question

I was wondering if there can be a process to restart apache if an alarm is triggered on ec2 instance. Either process can be triggered by Alarm or by SNS. In Alarm Actions i can see Auto Scaling or ECS Services or EC2 instance reboot kind option. I am trying to see if Lambda + SNS can work. But it dosen`t seem appropriate.

I am running ubuntu instances.

Answer 1

Yes you can achieve this by using Combination of AWS Lambda and EC2 Run Command Service from AWS.

https://aws.amazon.com/blogs/aws/new-ec2-run-command-remote-instance-management-at-scale/

You can create Lambda function that will trigger based on Cloudwatch Alarm and on trigger make Lambda to run service apache2 restart on your Ubuntu EC2 instance.