Multiple Domains Caddyfile

[Gradus (Daniel Lee)]

Hi:

I’m trying to setup my Caddy container to host 2 websites (eventually 4) and was wondering if there was a better way to go about it.

Caddyfile

www.exampleone.com {
  redir https://exampleone.com/{uri}
}

exampleone.com {
  root /srv/exampleone.com
}

www.exampletwo.com {
  redir https://exampletwo.com/{uri}
}

exampletwo.com {
  root /srv/exampletwo.com
}
tls myemail@email.com

Docker command

docker run -d -e “CADDYPATH=/etc/caddycerts” \
-e “ACME_AGREE=true” -v
$HOME/.caddy:/etc/caddycerts \
-v $HOME/Caddyfile:/etc/Caddyfile \
-v /etc/www/exampleone.com:/srv/exampleone.com \
-v /etc/www/exampletwo.com:/srv/exampletwo.com \
-p 80:80 -p 443:443 \
--name=“website_container” abiosoft/caddy

I originally only had exampleone.com running for a while, and am changing it to run exampletwo.com as well. I’m still fairly new to both Docker and Caddy, what kind of improvements can I make? Is this a weird way of setting up the Caddyfile?

Thank you!

[Whitestrake (Matthew Fay)]

Seems pretty straightforward, actually!

With the exception of that rogue tls command. It’s going to cause issues if you put it outside of a site block. Caddy will think you’re trying to serve a site with the labels tls and myemail@email.com and error out because those don’t look like website hostnames.

Also - currently, Caddy takes your www.exampleone.com, and splits it into two listeners: http://www.exampleone.com, which redirects to HTTPS, and https://www.exampleone.com/, which serves the site as you’ve specified (redirects to the bare domain).

That means that people visiting www over HTTP get redirected twice. You could optimise this:

http://www.exampleone.com, https://www.exammpleone.com {
  redir https://exampleone.com{uri}
}

exampleone.com {
  root /srv/exampleone.com
}

Now HTTP and HTTPS visitors to www get one redirect to your main site.

On the docker side, you could probably reduce down to one volume mount: /etc/www:/srv. Then you can add or remove sites in that folder without having to much around with the Docker volumes.

[Gradus (Daniel Lee)]

Thank you for the feedback! I’ve moved the tls command into both sections and made changes according to your example. Everything works great!