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Question on SSL traffic between podman containers and clients (should I run k3s?) (self.selfhosted)

submitted 1 year ago by MigratingtoLemmy to c/selfhosted

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Hi everyone.

I was trying to research about how to implement SSL on the traffic between my clients and the containers that I host on my server.

Basically, my plan was to use upstream SSL in HAProxy to attempt to achieve this, but in order for that to work, each individual container on my server needs to be able to decrypt SSL. I do not think that is possible and that every container has the necessary libraries for it. This puts a halt on my idea for upstream encryption of traffic from my reverse-proxy to my containers.

With that said, ChatGPT suggested I use Kubernetes with a service mesh like Istio. The idea was intriguing so I started to read about it; but before I dive head-first into using k3s (TBH it's overkill for my setup), is there any way to implement server-side encryption with podman containers and a reverse-proxy?

After writing all of this, I think I'm missing the point about a reverse-proxy being an SSL termination endpoint, but if my question makes sense to you, please let me know your thoughts!

Thanks!

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[–] MigratingtoLemmy 1 points 1 year ago (1 children)

Thank you, this is an excellent idea. I will probably not run a pod for every container (technically I can, since Netavark is supported for rootless containers in Podman 4.0), but I will definitely have a few pods on my system, where I can definitely use a reverse-proxy for every pod. Just need to figure out how I can automate it.

Thanks again

[–] [email protected] 2 points 1 year ago

Single node k3s is possible and can do what you’re asking but has some overhead (hence your acknowledgment of overkill). One thing i think it gets right and would help here is the reverse proxy service. It’s essentially a single entity with configuration of all of your endpoints in it. It’s managed programmatically so additions or changes are not needed to he done by hand. It sounds like you need a reverse proxy to terminate the TLS then ingress objects defined to route to individual containers/pods. If you try for multiple reverse proxies you will have a bad time managing all of that overhead. I strongly recommend going for a single reverse proxy setup unless you can automate the multiple proxies setup.