Where To Modify Starting Arguments of K8S Core Components

Requirement:

  We have a kubernetes cluster running on docker images. Details  refer github doc for Oracle K8S manual installation  . Sometimes we need to add/modify starting arguments of kubernetes core components. ie we need to add TaintBasedEvictions=true for kube-controller-manager component to enable alpha feature. Or we need to add argument for etcd component.

Solution:

    By default, the  manifests files are in master node in  /etc/kubernetes/manifests .You would see these 4 yaml files. Backup the files and do the changes and restart kubernetes cluster.
etcd.yaml  kube-apiserver.yaml  kube-controller-manager.yaml  kube-scheduler.yaml