Setup Let’s Encrypt + non-www > www

BlackKnob
Sun, 08 Apr 2018 22:33:44 +0000
Sysadmins

I finally made it work, and thought to put everything together in case someone needs it.
This info is assembled from different topics on this forum. Thanks to @brahn and @techAPJ.
This assumes you’ve completed the initial Let’s Encrypt setup:

Set up HTTPS support with Let's Encrypt Self-Hosting

This is a guide for enabling HTTPS on an existing Discourse installation using Let’s Encrypt. It assumes prior installation without HTTPS enabled. Required user level: System Administrator This guide is only for existing installs where HTTPS is not enabled. Following the official setup guide automatically enables HTTPS by default. So you’d like to add https to your Discourse absolutely free, courtesy of our friends at Let’s Encrypt? Is…

After you’ve done it, the following needs to be added to the app.yml in hooks section. It will do two things:

1. setup SSL for both example.com and www.example.com. Just replace example.com with your domain name.

2. redirect example.com to www.example.com

If anybody knows how to improve it, please let me know.

hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - git clone https://github.com/discourse/docker_manager.git


  after_web_config:
    - replace:
        filename: /etc/nginx/nginx.conf
        from: /sendfile.+on;/
        to: |
          server_names_hash_bucket_size 64;
          sendfile on;
    - file:
        path: /etc/nginx/conf.d/discourse_redirect_1.conf
        contents: |
          server {
            listen 443;
            server_name example.com;
            return 301 $scheme://www.example.com$request_uri;
          }
  after_ssl:
    - replace:
        filename: "/etc/runit/1.d/letsencrypt"
        from: /-k 4096 -w \/var\/www\/discourse\/public/
        to: |
          -d www.example.com -d example.com -k 4096 -w /var/www/discourse/public

    - replace:
        filename: "/etc/runit/1.d/letsencrypt"
        from: /-k 4096 --force -w \/var\/www\/discourse\/public/
        to: |
          -d www.example.com -d example.com -k 4096 --force -w /var/www/discourse/public

    - replace:
        filename: "/etc/nginx/conf.d/discourse.conf"
        from: /return 301 https.+/
        to: |
          return 301 https://$host$request_uri;

    - replace:
        filename: "/etc/nginx/conf.d/discourse.conf"
        from: /gzip on;[^\}]+\}/m
        to: |
          gzip on;
          add_header Strict-Transport-Security 'max-age=31536000'; # remember the certificate for a year and automatically connect to HTTPS for th$

as always, remember that spacing and indentation is extremely important in the app.yml file. After you’ve done editing, you have to rebuild the container with:

cd /var/discourse
./launcher rebuild app

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