Dokploy behind Nginx Proxy Manager - Github App Internal Server Error

[tygore587]

To Reproduce

Hi,

I have dokploy behind a reverse proxy (nginx proxy manager). When I want to create a Github app, I get an internal server error.

So my setup is the following:
Cloudflare tunnel -> nginx proxy manager -> dokploy instance

So I made Dokploy accessible via dokploy.example.com and I can also login into the instance.

Here are the logs from the dokploy container:

Error [HttpError]: connect ENETUNREACH <ip>:443
    at <unknown> (HttpError: connect ENETUNREACH <ip>:443) {
  status: 500,
  request: [Object]
}
 ⨯ Error [HttpError]: connect ENETUNREACH <ip>:443
    at <unknown> (HttpError: connect ENETUNREACH <ip>:443) {
  status: 500,
  request: [Object]
}

Current vs. Expected behavior

Expected: Successfully creating github app
Actual: Getting 500 error

Provide environment information

Operating System: 
    OS: Debian 12
    Arch: x64/86
Dokploy version: 0.24.0
Hypervisor: Proxmox CE
What are you trying to do?
    Create a github App

Which area(s) are affected? (Select all that apply)

Installation

Are you deploying the applications where Dokploy is installed or on a remote server?

Same server where Dokploy is installed

Additional context

I'm running it on proxmox.

Will you send a PR to fix it?

Maybe, need help

[djsisson]

@tygore587 have you blocked out going connections in a firewall ?

[tygore587]

@djsisson Outgoing connections are not blocked in any way.

One thing I should mention. I have installed dokploy in a lxc container with the fix posted here: #65 (comment)

[djsisson]

What do you get when you run a curl from inside the dokploy container

[tygore587]

I'm getting: curl: (7) Failed to connect to www.google.com port 80 after 6 ms: Couldn't connect to server

I ran

curl www.google.com

I also checked in the lxc container itself and there the internet connection works.

[djsisson]

It will be some routing or iptable issue due to running it inside lxc. I can't remember what you need to do to fix it.

Was it setup as privileged?

Someone might know, or just ask ai or on proxmox forums

[tygore587]

It is an unprivilidged container. Also just wandered because e.g. coolify works in a lxc container. But they don't use docker swarm, so maybe something on their setup is also different.

[djsisson]

swarm is different yes as overlays use vxlan so require privilege

see below for info

https://gist.github.com/Drallas/e03eb5a4f68bb526f920a423455bc0c9

you need to run a couple of commands for ip forwarding

you could maybe use IPVLan or MacVlan, but you could also just disable swarm and go back to normal docker networking

[Siumauricio]

Unfortunately I know that proxmox has some network problems, I am going to transfer this discussion as I consider that there are no changes to be made to dokploy itself.