19
How do you guys handle reverse proxies in rootless containers? (lemmy.world)
submitted 7 months ago* (last edited 7 months ago) by Molecular0079@lemmy.world to c/selfhosted@lemmy.world
18 comments fedilink hide all child comments

I've been trying to migrate my services over to rootless Podman containers for a while now and I keep running into weird issues that always make me go back to rootful. This past weekend I almost had it all working until I realized that my reverse proxy (Nginx Proxy Manager) wasn't passing the real source IP of client requests down to my other containers. This meant that all my containers were seeing requests coming solely from the IP address of the reverse proxy container, which breaks things like Nextcloud brute force protection, etc. It's apparently due to this Podman bug: https://github.com/containers/podman/issues/8193

This is the last step before I can finally switch to rootless, so it makes me wonder what all you self-hosters out there are doing with your rootless setups. I can't be the only one running into this issue right?

If anyone's curious, my setup consists of several docker-compose files, each handling a different service. Each service has its own dedicated Podman network, but only the proxy container connects to all of them to serve outside requests. This way each service is separated from each other and the only ingress from the outside is via the proxy container. I can also easily have duplicate instances of the same service without having to worry about port collisions, etc. Not being able to see real client IP really sucks in this situation.

you are viewing a single comment's thread
view the rest of the comments
[-] Molecular0079@lemmy.world 1 points 7 months ago

I am guessing you're not running Caddy itself in a container? Otherwise you'll run into the same real IP issue.

[-] herrfrutti@lemmy.world 2 points 7 months ago

I do. If you run caddy with network_mode: hostor better with network_mode: "slirp4netns:port_handler=slirp4netns" it should work.

also adding:

cap_add:
      - net_admin
      - net_raw
[-] Molecular0079@lemmy.world 1 points 7 months ago

I see. And the rest of your services are all exposed on localhost? Hmm, darn, it really looks like there's no way to use user-defined networks.

[-] herrfrutti@lemmy.world 1 points 7 months ago

Yes... That is also my understanding.

this post was submitted on 21 Apr 2024
19 points (91.3% liked)

Selfhosted

40382 readers
376 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
ruud@lemmy.world
CannaVet@lemmy.world
Loki@lemmy.world
HybridSarcasm@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz