this post was submitted on 02 Jan 2026
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Reverse Proxy: a single point of failure in my lab (lemmy.dbzer0.com)
submitted 7 months ago* (last edited 7 months ago) by thisisnotausername@lemmy.dbzer0.com to c/selfhosted@lemmy.world
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So, just for the sake of it I've been trying to get my lab to be HA -or as HA as a small homelab can be-

My current set up is a follows:

3 proxmox servers with some Debian VMs, the VMs run docker swarm

A NAS, with Truenas

ISProuter -> OpenWRTRouter -> VM [Port fowards 80/443]

This works like a charm when I am in my LAN, but when I access from outside, if the VM that has 80/443 port forwarded to is down (which it never is) I'd loose connectivity.

I have now idea how to solve this little problem in a efficient way, maybe a reverse proxy running on my OpenWRT? (Which'd only move the point of failure to my router, but if my router goes down is gameover already anyways) has anyone attempted this?

Any opinions/ideas?

Update:

Solved! I moved my traefik data to a NFS share in my NAS, replicated the container across all manager nodes and then installed keepalived and now float a VIP between them.

Works like a charm and it was super easy to set up, literally 3 ansible tasks and 1 jinja template and you are done.

Thanks to all of ya!

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[โ€“] ptz@dubvee.org 5 points 7 months ago* (last edited 7 months ago) (1 children)

Like you're thinking: put HAProxy on your OpenWRT router.

That's what I do. The HAProxy setup is kind of "dumb" L7 only (rather than HTTP/S) since I wanted all of my logic in the Nginx services. The main thing HAProxy does is, like you're looking for, put the SPOF alongside the other unavoidable SPOF (router) and also wraps the requests in Proxy Protocol so the downstream Nginx services will have the correct client IP.

Flow is basically:

LAN/WAN/VPN -> HAProxy -> Two Nginx Instances -> Apps

With HAProxy in the router, it also lets me set internal DNS records for my apps to my router's LAN IP.

[โ€“] thisisnotausername@lemmy.dbzer0.com 2 points 7 months ago

Thanks for the info, I kinda wanted someone to confirm that could before I sank some hours into it :)