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I have NGINX serving my site over HTTPS on EC2 hosts behind Elastic Load Balancer. I need to set up a proper health-check in ELB. However, I cannot use https://www.example.com because I need to health-check a HOST, not my site. And on the other side, I cannot use https://ec2host.amazonaws.com because the SSL certificate is valid only for my domain (example.com). So, I ended up using TCP port 80 check which is really the bare minimum.

How do I configure a proper health check in ELB to test whether a given host is delivering my website over HTTPS correctly?

  • Is it possible to add in plus of the example.com the IP address to test ? – Dom Mar 16 '15 at 8:08
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I managed to accomplish this using an approach like the one described here: http://scottwb.com/blog/2013/10/28/always-on-https-with-nginx-behind-an-elb/.

In NGINX config, I added:

  1. A specific location directive for the healthcheck URL ("/healthcheck") that does not do any HTTPS enforcement.
  2. A redirect if the "X-Forwarded-Proto: https" header does not exist.

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