operator-sdk (helm-based)

https://sdk.operatorframework.io/docs/building-operators/helm/quickstart/

Steps

mkdir nginx-operator
cd nginx-operator
operator-sdk init --domain example.com --plugins helm

operator-sdk create api --group demo --version v1alpha1 --kind Nginx

make docker-build docker-push IMG="nakamasato/nginx-operator:v0.0.1"

Deploy operator

make deploy IMG="nakamasato/nginx-operator:v0.0.1"

kubectl get deploy -n nginx-operator-system
NAME                                READY   UP-TO-DATE   AVAILABLE   AGE
nginx-operator-controller-manager   1/1     1            1           25s

Create a sample Nginx custom resource

kubectl apply -f config/samples/demo_v1alpha1_nginx.yaml

kubectl get Nginx nginx-sample
NAME           AGE
nginx-sample   34s

kubectl get deploy
NAME           READY   UP-TO-DATE   AVAILABLE   AGE
nginx-sample   0/1     1            0           14s

undeploy

make undeploy