tunnel-server: add basic deployment guide #405
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| ## Requirements | ||
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| - A Kubernetes cluster | ||
| - An ingress solution to make K8S Services accesible from your network (e.g, Traefik). In this example, we'll use your cloud provider's load balancer. |
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The "An ingress solution" might be confusing here due to the ambiguity with k8s ingress resources.
Since Traefik and cloud provider load balancer (based on k8s service-> loadbalancer) work at different layers (l4 vs l7), and the sentence imply that we're using the cloud provider's load balancer instead (which is incorrect, since we'll need service->loadbalancer endpoint to expose traefik if we were to use it).
In addition, cloud providers has both solutions for l4 and l7 integrated with Kubernetes (via k8s service->loadbalancer and k8s gateway/ingress) so it's not clear which one are we referring to.
| - Google Cloud: [GKE](https://cloud.google.com/kubernetes-engine/docs/concepts/service-load-balancer) | ||
| - Azure: [AKS](https://learn.microsoft.com/en-us/azure/aks/load-balancer-standard) | ||
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| Another approach would be to use a 3rd-party ingress solution like [Traefik](https://doc.traefik.io/traefik/user-guides/crd-acme/). |
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Traefik CRD won't solve the problem of configuring dns.
In k8s, there's external dns (https://github.com/kubernetes-sigs/external-dns) which works with many dns providers, but I didn't see wildcard support
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Looks awesome, added few notes.
In the future, it might be worth having an example with k8s gateway APIs which means there's no need for stunnel/sslh.
TLSRoute can be used for the ssh traffic, and HTTPRoute for the HTTP traffic. (although in this case routing will be based on hostname and not on ALPN)
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[Is this a bugfix/feature/doc-improvement?]
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