[Feedback] Setup your own scalable Kubernetes cluster with the Terraform provider for Hetzner Cloud

[rogeriolino]

I tried to follow this tutorial https://community.hetzner.com/tutorials/setup-your-own-scalable-kubernetes-cluster and I faced issues regarding the Load Balancer step.

First issue was relatd to hcloud-cloud-controller-manager, this tutorial uses v1.13.2 which the pod was CrashLooping in my cluster. So I decided to upgrade it to v1.21.0 and also adding network entry to hcloud secret.

kubectl -n kube-system create secret generic hcloud \
  --from-literal=token=<your_api_token> \
  --from-literal=network=<cluster_network_id>

kubectl -n kube-system apply -f https://github.com/hetznercloud/hcloud-cloud-controller-manager/releases/download/v1.21.0/ccm-networks.yaml

The Load Balancer step defined in the main.tf can be totally ignored, and after deploying ingress-nginx with the correct annotations, the load balancer will be created automatically.

kubectl -n ingress-nginx annotate services ingress-nginx-controller \
  load-balancer.hetzner.cloud/name="kubernetes-load-balancer" \
  load-balancer.hetzner.cloud/location="fsn1" \
  load-balancer.hetzner.cloud/use-private-ip="true" \
  load-balancer.hetzner.cloud/uses-proxyprotocol="true" \
  load-balancer.hetzner.cloud/hostname="<your_cluster_hostname>"

After these changes, I'm now able to create cluster-wide Ingress and LB works properly.

More info: https://blog.kay.sh/kubernetes-hetzner-cloud-loadbalancer-nginx-ingress-cert-manager/