Triggering Lambda function when my application port is down

Question

I want to trigger a Lambda function when my application port is down (application is running on Amazon EC2). So please let me know of any solution.

Thanks in advance.

Are you simply wanting to check your website is up? You don't need to write any code for this, you can use a commercial uptime check type service (google for it) or use one of the AWS health checks - Route53 Health Check for example. — Tim, Apr 04 '19 at 17:41

score 1 · Answer 1 · answered Apr 04 '19 at 11:26

1

Run the Lambda periodically, e.g. every minute. Regardless whether the app works or not.
From the Lambda check the app port
If it decides the port is down do whatever you need to do. If the port is up simply exit.

Hope that helps :)

answered Apr 04 '19 at 11:26

MLu

How about Route 53 Health Check → CloudWatch Alarm → SNS → Lambda? – Michael - sqlbot Apr 04 '19 at 15:39
@MLu, is there any APIs to do that – Gayathri K Apr 04 '19 at 17:17
@Michael-sqlbot True that shuld work. – MLu Apr 04 '19 at 17:50
@MLu, I don't want to use Route53 and load balancers here. So can you suggest me the other way to do that. If Lambda is the solution, can you give me some reference links – Gayathri K Apr 05 '19 at 12:50
@GayathriK If you don’t want to use the Route63 approach the do what I suggest in the answer -run it every minute and check the port. – MLu Apr 05 '19 at 20:17

1 Answers1