Enable use of subpath rather than domains for sites

[lpil]

Hello! Thank you again for goatcounter.

We wish to track multiple sites, but due to infrastructure limitations it is impractical for us to point a new domain name at the goatcounter instance per tracked site.

It would be fantastic if it were possible to use a subpath rather than a domain per site.

site name in database	domain (current)	sub path (proposed alternative)
one.example.com	https://one.example.com/	0.0.0.0/sites/one.example.com/
two.example.com	https://two.example.com/	0.0.0.0/sites/two.example.com/

One issue with this design is that goatcounter would need to know what the actual domain is in order to provision TLS certs, as it can't just make one per site now. Perhaps this could be mandatory configuration to enable this new routing behaviour. This is not an issue for us specifically as we use a reverse proxy which terminates TLS before it reaches goatcounter.

Thanks,
Louis

[arp242]

One issue with this design is that goatcounter would need to know what the actual domain is in order to provision TLS certs, as it can't just make one per site now.

Another problem are cookies; if you login on sites/one it will override the login cookie for sites/two. It's not a deal-breaker (you just need to re-login), but not great either.

Also redirects: will need to do "$root/path" instead of just "/path".

To be honest I'm a bit hesitant to change it, because it's quite a lot of work, not really complex work but lots of little things, and also fairly finicky and something I can foresee breaking (not something that's super-easy to test either), and you're the second person to ask for this (the first was just for "aesthetic reasons" rather than any practical issue).

I'm not entirely sure what the best solution would be for your use-case – maybe rewriting the paths with a proxy (Varnish, nginx, whatever) might be the best path forward? You can create sites as site1.localhost, site2.localhost, etc. and then proxy to that (that's also how I do local development, via e.g. http://arp242.goatcounter.localhost:8081).

Would that work?

[lpil]

Unfortunately it's not practical with our infrastructure limitations. Thank you nevertheless!

Do not consider this urgent. We can tolerate prefixing all the paths with the hostname. It's ugly but workable.