Controller Pattern

https://kubernetes.io/docs/concepts/architecture/controller/

kube-controller-manager

https://kubernetes.io/docs/concepts/overview/components/#kube-controller-manager

https://kubernetes.io/docs/reference/command-line-tools-reference/kube-controller-manager/

https://komodor.com/learn/controller-manager/

https://blog.knoldus.com/introduction-to-kube-controller-manager/

https://m.blog.naver.com/ijoos/222125981319

Controller 개발

https://github.com/kubernetes-sigs/kubebuilder

https://ssup2.github.io/programming/Kubernetes_Kubebuilder/

https://www.getoutsidedoor.com/2020/05/09/kubernetes-controller-구현해보기/