How can i setup Pairdrop with Caddy in home-lab environment

[cesare190]

Good morning, i'm trying to setup Caddy as reverse-proxy for Pairdrop. At the moment Pairdrop is a Docker Container in a custom bridge that expose port binded to host i.e. 127.0.0.1:5200 -> 3000. I also have a Caddy docker container that work on host network that have a configuration to expose Pairdrop to Home network only (General idea should be (192.168.x.x:443) -> 127.0.0.1:5200 -> pairdrop:3000). Caddy manage https with FQDN Let's Encrypt certificate that i also use for my homelab.

I tried to follow guides and tutorial to setup a reverse proxy: with Nginx Proxy Manager I didn't have Problem but insted i'm not able to manage Caddy. I suppose that the problem is with ws but I can't find how to correctly manage them in Caddy.

Thanks so much.

[cesare190]

Is it correct?

http://REDACTED {
redir https://{host}{uri}
}

https://REDACTED {
import REMOVED-CERT-FOR-SSL
reverse_proxy * http://127.0.0.1:choosenport {
header_up Host {upstream_hostport}
}
}

Or there is more that i have to do?
With * seems to go, but with / in reverse_proxy it seems broken

[ottsimon]

Hi, I started using PairDrop together with Caddy V2 as a reverse proxy.

My Caddyfile looks like this:

pairdrop.example.com {
	reverse_proxy 127.0.0.1:3000
}

Some notes:

• Make sure to change the domain and port accordingly to your setup.
• If you use IPv6, make sure IPV6_LOCALIZE is set (see documentation).
• You don't need to specify a http to https redirect, Caddy does this automatically for you.
• You also don't need to specify any headers, Caddy will set the required ones automatically too.
• If you want to use http only, specify this in front of the domain: http://pairdrop.example.com.
• If you want to use custom certificates, you can specify them inside the domain block with tls /path/to/cert /path/to/key.
• Otherwise, Caddy will get a Let's Encrypt certificate for you.

Hope that helps.