Kubernetes Cookbook - Second Edition

Getting ready

Before you start to run your first container in Kubernetes, it's better to check if your cluster is in a healthy mode. A checklist showing the following items would make your kubectl sub commands stable and successful, without unknown errors caused by background services:

1. Checking the master daemons. Check whether the Kubernetes components are running:

// get the components status$ kubectl get csNAME                 STATUS    MESSAGE              ERRORcontroller-manager   Healthy   okscheduler            Healthy   oketcd-0               Healthy   {"health": "true"}

2. Check the status of the Kubernetes master:

// check if the master is running$ kubectl cluster-infoKubernetes master is running at https://192.168.122.101:6443KubeDNS is running at https://192.168.122.101:6443/api/v1/namespaces/kube-system/services/kube-dns/proxy ...