Overview

In order to demonstrate how to develop a new Cluster API provider we will use kubebuilder to create an example provider. For more information on kubebuilder and CRDs in general we highly recommend reading the Kubebuilder Book. Much of the information here was adapted directly from it.

This is an infrastructure provider - tasked with managing provider-specific resources for clusters and machines. There are also bootstrap providers, which turn machines into Kubernetes nodes.

Prerequisites

tl;dr

# Install kubectl
brew install kubernetes-cli

# Install kustomize
brew install kustomize

# Install kubectl
KUBECTL_VERSION=$(curl -sfL https://dl.k8s.io/release/stable.txt)
curl -fLO https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl

# Install kustomize
curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"  | bash
chmod +x ./kustomize && sudo mv ./kustomize /usr/local/bin/kustomize

# Install Kubebuilder
curl -sLo kubebuilder https://go.kubebuilder.io/dl/latest/$(go env GOOS)/$(go env GOARCH)
chmod +x ./kubebuilder && sudo mv ./kubebuilder /usr/local/bin/kubebuilder