ki

ki

WIP: Opinionated Kubernetes Installer for Hetzner Cloud.

This can be done in Ansible, but I'm doing it myself in Go.

Links

• https://v1-31.docs.kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
• https://www.linkedin.com/pulse/step-by-step-guide-installing-kubernetes-ubuntu-2404-lts-jayaraman-okozc
• https://community.hetzner.com/tutorials/setup-your-own-scalable-kubernetes-cluster

What it should do

• Disable swap
• Configure kernel modules and parameters
• Install conteinerd
• Install kubelet, kubeadm, kubectl
• Install helm, cilium
• Initialize the cluster
• Install a CNI (Cilium)
• Join cluster
• Install Hetzner ingress and CSI

Usage

Create cluster

runcmd:
  - wget https://github.com/ernado/ki/releases/download/v0.1.1/ki-linux-amd64.tar.gz
  - tar -xvf ki-linux-amd64.tar.gz
  - mv ki /usr/local/bin/ki
  - ki --install

Control node should have 10.0.1.1 as internal IP. You can specify it by -control-plane-internal-ip flag.

Join cluster

runcmd:
  - wget https://github.com/ernado/ki/releases/download/v0.1.1/ki-linux-amd64.tar.gz
  - tar -xvf ki-linux-amd64.tar.gz
  - mv ki /usr/local/bin/ki
  - ki --join --install

TODO

W0211 15:38:05.996784   19812 checks.go:846] detected that the sandbox image "registry.k8s.io/pause:3.8" of the container runtime is inconsistent with that used by kubeadm.It is recommended to use "registry.k8s.io/pause:3.10" as the CRI sandbox image.