[Improvement]: allow the coolify.caddy file to be editable

[Caliimon]

hey,
the coolify.caddy file under /data/coolify/proxy/caddy/dynamic is currently not editable. neither through the coolify dashboard nor directly via the file.
this results in certain features not working, for example when you want to put authentik in front of the coolify dashboard.

there are probably other situations when you want to edit that config file as well, so an option to allow edits with a warning and confirmation popup would be very much appreciated.

just to make sure: this issue is not about oauth. i know there's the option to add oauth via authentik to the login screen.

thanks!

[Caliimon]

found a solution to the above problem:

1. copy the dynamic/ dir to a newly created dir (e.g. dynamic_custom/):

cp -a /data/coolify/proxy/caddy/dynamic /data/coolify/proxy/caddy/dynamic_custom

2. create a caddy-docker-proxy compose override:

cd /data/coolify/proxy/caddy
touch docker-compose.override.yml

3. paste the following into the compose.override file

services:
  caddy:
    volumes:
      - '/data/coolify/proxy/caddy/dynamic_custom:/dynamic'

4. update the coolify.caddy file to meet your requirements

https://coolify.example.com {
    # added directives for authentik:
    forward_auth http://authentik-server:9000 {
        uri /outpost.goauthentik.io/auth/caddy
        copy_headers copy_headers X-Authentik-Username X-Authentik-Groups X-Authentik-Entitlements X-Authentik-Email X-Authentik-Name X-Authentik-Uid X-Authentik-Jwt X-Authentik-Meta-Jwks X-Authentik-Meta-Outpost X-Authentik-Meta-Provider X-Authentik-Meta-App X-Authentik-Meta-Version
    }
    reverse_proxy /outpost.goauthentik.io/* authentik-server:9000 {
        header_up Host {http.reverse_proxy.upstream.host}
    }

    # old config:
    handle /app/* {
        reverse_proxy coolify-realtime:6001
    }
    handle /terminal/ws {
        reverse_proxy coolify-realtime:6002
    }
    reverse_proxy coolify:8080
}

5. restart the proxy, e.g. via the coolify web ui under /server/<coolify_host>/proxy

caveats:
the caddy web ui under /server/<coolify_host>/proxy/dynamic still points to the original dynamic/ dir. that means editing or adding new .caddy files via the coolify web ui does not work anymore. you would either need to copy the new/updated .caddy files to the dynamic_custom/ dir, or directly do the required changes via the terminal under /data/coolify/proxy/caddy/dynamic_custom.
future coolify updates may also update the dynamic/ dir, in which case you would also need to copy the changes over to the new dir.

why this works:
coolify has hard coded the proxy paths on the host system, so in order to update the coolify.caddy file, we need to create a new dir (dynamic_custom/), which then gets bind mounted in docker-compose.override.yml.
docker-compose.override.yml is a standard compose feature that gets merged with docker-compose.yml files based on certain rules (https://docs.docker.com/compose/how-tos/multiple-compose-files/merge/#merging-rules). this means the above fix will be persistent across future coolify upgrades without having to redo the steps.