How to Enable Wordpress HTTPS on AWS

This tutorial will help us install Wordpress on Amazon using a Wordpress image provided by Bitnami. We will also enable HTTPS by using an Amazon's elastic load balancer and a WordPress plugin.

Steps

1. Create an EC2 instance and install this Wordpress image from Bitnami: https://aws.amazon.com/marketplace/pp/B00NN8Y43U.
2. Install Easy Https Redirection plugin on Wordpress - https://wordpress.org/plugins/https-redirection/
3. Configure Elastic Load Balancing With SSL And AWS Certificate Manager For Bitnami Applications On AWS - https://docs.bitnami.com/aws/how-to/configure-elb-ssl-aws/
   These lines should be added before WP_HOME and WP_SITEURL:

   if (strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false)
       $_SERVER['HTTPS']='on';
   

4. At this stage, your URL should both be accessible via HTTP and HTTPS, but we want to force a redirect to HTTPS so we need to do this final step.
1. Reopen ~/apps/wordpress/conf/httpd-prefix.conf and add the following lines:
   

   RewriteCond %{HTTPS} !=on
   RewriteCond %{HTTP:X-Forwarded-Proto} !https [NC]
   RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
   

5. And finally, don't forget to restart the apache server: /opt/bitnami/ctlscript.sh restart apache

The final version of the file should look like below. Take note of the commented lines, those are the originals.

SetEnvIf x-forwarded-proto https HTTPS=on

# App url moved to root
DocumentRoot "/opt/bitnami/apps/wordpress/htdocs"
    #Alias /wordpress/ "/opt/bitnami/apps/wordpress/htdocs/"
#Alias /wordpress "/opt/bitnami/apps/wordpress/htdocs"

RewriteEngine On
#RewriteCond "%{HTTP_HOST}" ^ec2-([0-9]{1,3})-([0-9]{1,3})-([0-9]{1,3})-([0-9]{1,3})\..*\.amazonaws.com(:[0-9]*)?$
#RewriteRule "^/?(.*)" "%{REQUEST_SCHEME}://%1.%2.%3.%4%5/$1" [L,R=302,NE]

#RewriteCond %{HTTPS} !=on
#RewriteRule ^/(.*) https://%{SERVER_NAME}/$1 [R,L]

RewriteCond %{HTTPS} !=on
RewriteCond %{HTTP:X-Forwarded-Proto} !https [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Include "/opt/bitnami/apps/wordpress/conf/httpd-app.conf"

Video Tutorial: https://www.youtube.com/watch?v=WQwvwiPZlZE