Kubernetes cheatsheet

README.md

Cluster & Context

• List all available contexts

kubectl config get-contexts

• Show current context

kubectl config curret-context

• Switch to a different context

kubectl config use-context {ctx_name}

• Set default namespace for a context

kubectl config set-context {ctx_name} --namespace={ns_name}

• Show cluster info

kubectl cluster-info

Namespaces

• List all namespaces

kubectl get namespaces

• Create namespace

kubectl create namespace {ns_name}

• Delete namespace

kubectl delete namespace {ns_name}

Pods

• List pods across all namespaces

kubectl get pods --all-namespaces

or

kubectl get pods --A

• List pods in current namespace (default)

kubectl get pods

• List pods for namespace

kubectl get pods --namespace {ns_name}

• List pods for namespace with more details

kubectl get pods --namespace {ns_name} -o wide

• Show details of a specific pod

kubectl describe pod {pod_name}

• Show CPU and memory usage for pods in namespace

kubectl top pod --namespace {ns_name}

• Fetch logs of a pod

kubectl logs {pod_name} --namespace {ns_name}

• Stream logs of a pod (stdout)

kubectl -f logs {pod_name} --namespace {ns_name}

• Access a running pod's shell

kubectl exec -it {pod_name} -- bash

• Show pod's ENV

kubectl exec -n {ns_name} {pod_name} -- env