AWS Elastic Beanstalk Load Balancer settings for SSL

Question

I have a Ruby On Rails app configured for SSL only, and set up the following listener on my elastic load balancer:

With this configuration, my site application does not resolve, and I don't understand why. If however, I change the instance protocol to HTTP everything works as expected.

Could someone explain why this is please?

Answer 1

When configuring an ELB to listen on HTTPS, you must upload a certificate to IAM and link it from the ELB.

Procedure is described in the documentation

When using AWS ElasticBeanstalk, you can also configure your ELB and SSL certificate from a config file located in your source's home/.ebextensions

Sample config file is :

 - namespace: aws:elb:loadbalancer
   option_name: LoadBalancerHTTPSPort
   value: 443

 - namespace: aws:elb:loadbalancer
   option_name: SSLCertificateId
   value: arn:aws:iam::012345678901:server-certificate/my_certificate_name

Have a look at the detailed documentation for possible options