sample-controller

Group Name: sayedppqq.dev

Version Name: v1alpha1

Resource Name: Kluster

Code Gen

Code gen is needed for generating:

• DeepCopyObject
• Clientset
• Informer
• Lister

Procedure

• import "k8s.io/code-generator" into main.go
• run go mod tidy;go mod vendor
• run chmod +x ..../sample-controller/hack/codegen.sh
• run chmod +x vendor/k8s.io/code-generator/generate-groups.sh
• run hack/codegen.sh
• again run go mod tidy;go mod vendor

To generate controller-gen

• Run depelopmentDir=$(pwd)

• Then run controller-gen rbac:roleName=controller-perms crd paths=github.com/sayedppqq/sample-controller/pkg/apis/sayedppqq.dev/v1alpha1 crd:crdVersions=v1 output:crd:dir=$depelopmentDir/manifests output:stdout

Deploy custom resource

Just create a yaml file like manifests/kluster.yaml and apply.

Run kubectl get Kluster

Resource

https://www.linkedin.com/pulse/kubernetes-custom-controllers-part-1-kritik-sachdeva/

https://www.linkedin.com/pulse/kubernetes-custom-controller-part-2-kritik-sachdeva/

https://github.com/ishtiaqhimel/crd-controller/tree/master