kubectl get pods --sort-by='.status.containerStatuses[0].restartCount'

kubectl get pods -o json | jq '.items[].spec.containers[].env[]?.valueFrom.secretKeyRef.name' | grep -v null | sort | uniq

kubectl get pods --all-namespaces -o jsonpath='{range .items[*].status.initContainerStatuses[*]}{.containerID}{"n"}{end}' | cut -d/ -f3

kubectl logs -f -l name=myLabel --all-containers    # stream all pods logs with label name=myLabel (stdout)

kubectl get pods -A -o=custom-columns='DATA:spec.containers[*].image'

kubectl get pods --namespace default --output=custom-columns="NAME:.metadata.name,IMAGE:.spec.containers[*].image"

kubectl get pods -A -o=custom-columns='DATA:spec.containers[?(@.image!="registry.k8s.io/coredns:1.6.2")].image'

kubectl get pods --sort-by=.status.containerStatuses[0].restartCount

kubectl explain pods                           # get the documentation for pod manifests

kubectl get pods --all-namespaces             # List all pods in all namespaces

kubectl get pods -o wide                      # List all pods in the current namespace, with more details

kubectl get pods                              # List all pods in the namespace

kubectl rollout history deployment/frontend                      # Check the history of deployments including the revision

kubectl create deployment nginx --image=nginx

kubectl rollout status deployment/nginx

kubectl rollout undo deployment/nginx

kubectl rollout restart deployment/nginx

kubectl set image deployment/nginx nginx=nginx:1.21

kubectl get services                          # List all services in the namespace

kubectl get services --sort-by=.metadata.name

kubectl get replicationcontroller,services

kubectl config get-contexts                          # display list of contexts

kubectl config get-contexts -o name                  # get all context names

kubectl get pods --all-namespaces             # List all pods in all namespaces

kubectl get pods --all-namespaces -o jsonpath='{range .items[*].status.initContainerStatuses[*]}{.containerID}{"n"}{end}' | cut -d/ -f3

kubectl get namespaces

kubectl top pods --all-namespaces --sort-by=memory

Show merged kubeconfig settings and raw certificate data and exposed secrets

kubectl patch sa default --type='json' -p='[{"op": "add", "path": "/secrets/1", "value": {"name": "whatever" } }]'

kubectl create secret generic my-secret --from-literal=username=admin --from-literal=password=s3cret

kubectl create secret generic my-secret --from-file=path/to/credentials.json

kubectl create secret docker-registry regcred --docker-username=myuser --docker-password=mypass --docker-email=my@email.com

kubectl get pv

kubectl create -f pv.yaml

kubectl get pv -o custom-columns=NAME:.metadata.name,CAPACITY:.spec.capacity.storage,STATUS:.status.phase,CLAIM:.spec.claimRef.name,STORAGECLASS:.spec.storageClassName,ACCESSMODES:.spec.accessModes

kubectl get pv --field-selector status.phase=Available

kubectl get pv --watch

kubectl get pv <pv-name> -o yaml

Get security context

kubectl get pods my-pod -o jsonpath='{.spec.securityContext}'

kubectl get secret $(kubectl get sa <sa-name> -n <namespace> -o jsonpath='{.secrets[0].name}') -n <namespace> -o jsonpath='{.data.token}' | base64 -d

kubectl auth can-i create deployments --as <user> -n <namespace>

kubectl apply -f network-policy.yaml

kubectl create secret generic <name> --from-literal=key=value -n <namespace>

kubectl describe pod <pod-name>

kubectl logs <pod-name>

kubectl top node

kubectl top pod

kubectl get events

kubectl get pods -o wide

kubectl describe node <node-name>

kubectl cluster-info dump