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README.md
 
 

README.md

  1. Get the name of all the nodes and their taint effect if any.
    K8s version used - v1.19.5
Click to expand! 
kubectl get nodes -o jsonpath='{range $.items[*]} {.metadata.name} {.spec.taints[*].effect}{"\n"}{end}'

Output

kubemaster NoSchedule
kubenode01
kubenode02
  1. Get the name of the all the nodes and their corresponding InternalIP address.
    K8s version used - v1.19.5
Click to expand! 
kubectl get nodes -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.status.addresses[?(@.type=="InternalIP")].address}{"\n"}{end}'

Output

kubemaster      192.168.56.2
kubenode01      192.168.56.3
kubenode02      192.168.56.4
  1. Get the name of the all the nodes' name, os image, os architecture, pod cidrs, internal and external ip address.
    K8s version used - v1.19.5
Click to expand! 
kubectl get nodes -o custom-columns='NODE-NAME:.metadata.name,OS-IMAGE:.status.nodeInfo.osImage,OS-ARCH:.status.nodeInfo.architecture,POD-CIDRs:.spec.podCIDRs[*],INTERNAL-IP:.status.addresses[?(@.type=="InternalIP")].address,EXTERNAL-IP:.status.addresses[?(@.type=="ExternalIP")].address'

Output

NODE-NAME    OS-IMAGE             OS-ARCH   POD-CIDRs       INTERNAL-IP    EXTERNAL-IP
kubemaster   Ubuntu 16.04.7 LTS   amd64     10.244.0.0/24   192.168.56.2   <none>
kubenode01   Ubuntu 16.04.7 LTS   amd64     10.244.1.0/24   192.168.56.3   <none>
kubenode02   Ubuntu 16.04.7 LTS   amd64     10.244.2.0/24   192.168.56.4   <none>