1. The problem I’m having:
I have Caddy setup to host some websites locally. If I type https://mainsail.harding.trev.red it works and loads correctly. Mainsail is an app to interface with a 3D Printer. So, I have a webcam that I can use to look at my print to make sure nothing has failed so far. That works when I am on LAN. I connected my network/dns through a VPN (Tailscale) and I can still access Mainsail but the cam doesn’t work. I assume I need to somehow serve the webcam. So, I found that the actual URL for the webcam is https://mainsail.harding.trev.red/webcam/webrtc and I tried accessing that directly. I can confirm that when I am on LAN, that shows the webcam, but if I am going through the VPN, that URL loads nothing.
I assumed that it was a VPN issue, but the fact that it loads the rest of the page means that DNS is working, communicating with LAN devices (DNS, Caddy, and the Mainsail Raspberry Pi), and caddy since it’s accessible through https with a cert. So, my assumption is that I just need to serve /webcam/webrtc through Caddy. I looked at the documentation and it seemed to be more about files and the keyword was rewrite. So, I don’t think that would really apply here. Any advice would be greatly appreciated!
2. Error messages and/or full log output:
There are no logs that have anything to do with mainsail.
3. Caddy version:
4. How I installed and ran Caddy:
a. System environment:
OS: Proxmox VE 7.4-17 x86_64
Host: 10MUS35500 ThinkCentre M910q
Kernel: 5.15.131-1-pve
Docker version 24.0.7, build afdd53b
Docker Compose version v2.21.0
b. Command:
docker compose up --force-recreate --build -d
c. Service/unit/compose file:
DockerFile
FROM caddy:2.7-builder AS builder
RUN xcaddy build --with github.com/caddy-dns/cloudflare@latest
FROM caddy:2.7
COPY --from=builder /usr/bin/caddy /usr/bin/caddy
---
version: "3"
services:
caddy:
build:
context: .
dockerfile: Dockerfile
container_name: caddy
restart: always
ports:
- 80:80
- 443:443
- 2019:2019
volumes:
- ./config:/config
- ./data:/data
- ./logs/:/logs/
- ./Caddyfile:/etc/caddy/Caddyfile
- ./sites/:/etc/caddy/sites/
networks:
- web
networks:
web:
external: true
d. My complete Caddy config:
trev.red, *.trev.red, *.harding.trev.red {
tls {
dns cloudflare CLOUDFLARE-API-KEY
}
respond "go away!"
}
import sites/*.caddy
sites/3d-printer.caddy
mainsail.harding.trev.red {
reverse_proxy http://192.168.5.26
}