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Add firewall configuration to quick start documentation (#10357)

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Rudolf Byker 2023-08-29 09:17:22 +02:00 committed by GitHub
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docs/deploy/index.md
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@ -80,6 +80,12 @@ kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/cont
Because of api deprecations, the default manifest may not work on your cluster.
Specific manifests for supported Kubernetes versions are available within a sub-folder of each provider.
### Firewall configuration
To check which ports are used by your installation of ingress-nginx, look at the output of `kubectl -n ingress-nginx get pod -o yaml`. In general, you need:
- Port 8443 open between all hosts on which the kubernetes nodes are running. This is used for the ingress-nginx [admission controller](https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/).
- Port 80 (for HTTP) and/or 443 (for HTTPS) open to the public on the kubernetes nodes to which the DNS of your apps are pointing.
### Pre-flight check
A few pods should start in the `ingress-nginx` namespace: