How to connect official wordpress docker-container via https

  • Dear all...

    I've a problem to connect to my wordpress page via my duckdns domain (https).
    On my local network I can connect to my wordpress page. When I switch the url iin wordpress to my duckdns domain (https) I can not connect anymore.
    I'm already running nextcloud via letsencrypt and duckdns. That works like charm. I connected the official docker wordpress container to a specified docker network in which nextcloud and letsencrypt are already in. The wordpress container can only exposes port 80, could that be the problem? Could somebody give m some advice, how to get it work?

    Many thanks in advanced for any suggestions.

  • Hello everybody...

    running mariadb, duckdns, letsencrypt and wordpress with docker. On my local network everything works fine. With my duckdns domain it doesn't work. I did some research, but still no success.
    I changed my wordpress.subdomain.conf (nginx letsencrypt) and my wp-config.php.

    In wp-config.php I added the following line.

    Code: wp-config.php
    define('FORCE_SSL_ADMIN', true);
    if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')

    Tried it also with these lines from the info-page of docker official images wordpress.

    On local side everything works. Via my duckdns domain no chance. I'm unable to connect. When I try to reach my site via https:\\ it's going to try port 8080. But this port isn't open and it shouldn't go throw this.
    Anybody any solution?
    Many thanks in advanced...

  • Thanks for the input Morlan.

    I changed in the wordpress.subdomain.conf the proxy_pass and restarted letsencrypt.
    Then I had my OMV login screen on
    That's also good. My goal was only to get my blog on that domain.

    My wordpress docker forwards port 8080 -> 80. So that's why I put 8080 to proxy_pass.
    The configs are now looking like that.

    Code: wp-config.php
    define('FORCE_SSL_ADMIN', true);
    if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')

    I still can only connect to the blog on my local network. :(

  • Ok I misunderstood your comment:


    The wordpress container can only exposes port 80

    Unfortunately I am not familiar with the wordpress docker. Your wordpress.subdomain.conf looks fine (right now should be redirected to Which error message do you get? And what wordpress docker are you using ?

  • I'm also expecting that the problem is somewhere in the wordpress configuration.

    Using the official wordpress docker (Docker official images).

    On the official wordpress docker info page is a link how to use wordpress docker with a reverse proxy.
    Following lines should be added to wp-config.php.

    When I try to connect to my blog page firefox shows:

    The page isn’t redirecting properly

    An error occurred during a connection to

    This problem can sometimes be caused by disabling or refusing to accept cookie

    I also looked in the wordpress database (wp_options) for siteurl ( and home (
    That's the actual state and no connection local and via mydomain. When I set both (siteurl and home) to I can reach my page on local network. I also tried both (siteurl and home) to same like actual (first mentioned) database entry's. ?(

  • Yes, this is a common problem. Try using the codes. And if it doesn't work out, you can do what I did. I had this problem. I wanted to add expires headers to wordpress. But I couldn't do it. I had to fix the site because it was hanging up. I found an article…xpires-headers-wordpress/. It turned out that this is very simple. I did everything as it was said and now my site is very popular. I advise you to try it.

Participate now!

Don’t have an account yet? Register yourself now and be a part of our community!