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Connection

kubectl config use-context [context-name]
Switch to a specific Kubernetes cluster context

kubectl config current-context
Check the current context you're connected to

kubectl config get-contexts
List all available contexts

kubectl cluster-info
Display cluster connection information

Pod Health Checking

kubectl get pods
List all pods in the current namespace

kubectl get pods -A
List pods across all namespaces

kubectl describe pod [pod-name]
Show detailed information about a specific pod

kubectl logs [pod-name]
View logs for a pod

kubectl logs [pod-name] -c [container-name]
View logs for a specific container in a pod

Resource Monitoring

kubectl top pods
Display CPU/Memory usage of pods

kubectl top nodes
Display CPU/Memory usage of nodes

kubectl get events
List events in the current namespace

kubectl get events --sort-by=.metadata.creationTimestamp
List events sorted by creation time

Health and Readiness Probes

kubectl get pod [pod-name] -o jsonpath='{.spec.containers[*].livenessProbe}'
Check liveness probe configuration

kubectl get pod [pod-name] -o jsonpath='{.spec.containers[*].readinessProbe}'
Check readiness probe configuration

kubectl get pod [pod-name] -o jsonpath='{.spec.containers[*].startupProbe}'
Check startup probe configuration

Debugging

kubectl exec -it [pod-name] -- sh
Open a shell inside a pod

kubectl port-forward [pod-name] [local-port]:[pod-port]
Forward a local port to a port on the pod

kubectl debug [pod-name] --image=busybox --target=[container-name]
Create a debugging container in a running pod