Kubectl Cheatsheet

Download kubectl to your Linux / Mac laptop

Linux:

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curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"

sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl

kubectl version --client

Macos, M1 architecture:

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curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/darwin/arm64/kubectl"

chmod +x ./kubectl

sudo mv ./kubectl /usr/local/bin/kubectl
sudo chown root: /usr/local/bin/kubectl

kubectl version --client

How to merge kubectl config files:

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export KUBECONFIG=~/.kube/config:~/someotherconfig
kubectl config view --flatten

How to get list of nodes:

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kubectl get nodes

How to see CPU load and memory usage for nodes:

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kubectl top nodes

How to get pods running on specific node:

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kubectl get pods --all-namespaces -o wide --field-selector spec.nodeName=<node>