Cloud Est 2021 - Demo Controller

Ecrire un opérateur Kubernetes c'est bien, le tester c'est mieux

This repository contains all code used during the talk.

Feel free to clone it, play with the code and get inspiration if you want to write a controller

Quick install

Prerequisite

You must have a working Kubernetes cluster, minikube or kind are enough

⚠️ If you are using a GKE cluster you must add a library to allow the controller to connect to the cluster

cmd/main.go

import (
    ...
    _ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
)

If you updated pkg/apis don't forget to run

make gen

Locally the controller will share the same kubernetes profile than yours in your current context, this profile must have enough RBAC

Install CRD on your cluster

make install

Start the controller

make run

You can deploy an example application provided into examples

kubectl apply -f examples/app.yaml

Run the test suite

make test