Kubernetes Cheat sheet commands
Kubernetes Cheat Sheet
Viewing Resource Information
Nodes
$ kubectl get no |
$ kubectl get no -o wide |
$ kubectl describe no |
$ kubectl get no -o yaml |
$ kubectl get node --select or =[ label _name] |
$ kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="ExternalIP")].address}' |
$ kubectl top node [node_name] |
Pods
$ kubectl get po |
$ kubectl get po -o wide |
$ kubectl describe po |
$ kubectl get po --show-labels |
$ kubectl get po -l app=nginx |
$ kubectl get po -o yaml |
$ kubect l get pod [ pod_name] -o yaml --export |
$ kubect l get pod [pod_name] -o yaml --export > nameoffile.yaml |
$ kubectl get pods --field-selector status.phase=Running |
Namespaces
$ kubectl get ns |
$ kubectl get ns -o yaml |
$ kubectl describe ns |
Deployments
$ kubectl get deploy |
$ kubectl describe deploy |
$ kubectl get deploy -o wide |
$ kubectl get deploy -o yam |
Services
$ kubectl get svc |
$ kubectl describe svc |
$ kubectl get svc -o wide |
$ kubectl get svc -o yaml |
$ kubectl get svc --show-labels |
DaemonSets
$ kubectl get ds |
$ kubectl get ds --all-namespaces |
$ kubectl describe ds [daemonset _name] -n [namespace_name] |
$ kubectl get ds [ds_name] -n [ns_name] -o yaml |
Events
$ kubectl get events |
$ kubectl get events -n kube-system |
$ kubectl get events -w |
Logs
$ kubectl logs [pod_name] |
$ kubectl logs --since=1h [pod_name] |
$ kubectl logs --tail =20 [pod_name] |
$ kubectl logs -f -c [container_name] [pod_name] |
$ kubectl logs [pod_name] > pod.log |
Service Accounts
$ kubectl get sa |
$ kubectl get sa -o yaml |
$ kubectl get serviceaccounts default -o yaml > ./sa.yaml |
$ kubectl replace serviceaccount default -f. /sa.yaml |
ReplicaSets
$ kubectl get rs |
$ kubectl describe rs |
$ kubectl get rs -o wide |
$ kubectl get rs -o yaml |
Roles
$ kubectl get roles --all-namespaces |
$ kubectl get roles --all-namespaces -o yaml |
Secrets
$ kubectl get secrets |
$ kubectl get secrets --all-namespaces |
$ kubectl get secrets -o yaml |
ConfigMaps
$ kubectl get cm |
$ kubectl get cm --all-namespaces |
$ kubectl get cm --all-namespaces -o yaml |
Ingress
$ kubectl get ing |
$ kubectl get ing --all-namespaces |
PersistentVolume
$ kubectl get pv |
$ kubectl describe pv |
PersistentVolumeClaim
$ kubectl get pvc |
$ kubectl describe pvc |
StorageClass
$ kubectl get sc |
$ kubectl get sc -o yaml |
MultipleResources
$ kubectl get svc, po |
$ kubectl get deploy, no |
$ kubectl get all |
$ kubectl get all --all-namespaces |
Changing Resource Attributes
Taint
$ kubectl taint [node_name] [taint _name] |
Labels
$ kubectl label [node_name] disktype=ssd |
$ kubrectl label [pod_name] env=prod |
Cordon/Uncordon
$ kubectl cordon [node_name] |
$ kubectl uncordon [node_name] |
Drain
$ kubectl drain [node_name] |
Nodes/Pods
$ kubectl delete node [node_name] |
$ kubectl delete pod [pod_name] |
$ kubectl edit node [node_name] |
$ kubectl edit pod [pod_name] |
Deployments/Namespaces
$ kubectl edit deploy [deploy_name] |
$ kubectl delete deploy [deploy_name] |
$ kubectl expose deploy [depl oy_name] --port=80 --type=NodePort |
$ kubectl scale deploy [deploy_name] --replicas=5 |
$ kubectl delete ns |
$ kubectl edit ns [ns_name] |
Services
$ kubectl edit svc [svc_name] |
$ kubectl delete svc [svc_name] |
DaemonSets
$ kubectl edit ds [ds_name] -n kube-system |
$ kubectl delete ds [ds_name] |
ServiceAccounts
$ kubectl edit sa [sa_name] |
$ kubectl delete sa [sa_name] |
Annotate
$ kubectl annotate po [pod_name] [annotation] |
$ kubectl annotate no [node_name] |
Adding Resources
Creating a Pod
$ kubectl create -f [name_of _file] |
$ kubectl apply -f [name_of _file] |
$ kubectl run [pod_name] --image=ngi nx --restart=Never |
$ kubectl run [ pod_name] --generator =run-pod/v1 --image=nginx |
$ kubectl run [ pod_name] --image=nginx --restart=Never |
Creating a Service
$ kubectl create svc nodeport [svc_name] --tcp=8080:80 |
Creating a Deployment
$ kubectl create -f [name_of _file] |
$ kubectl apply -f [name_of _file] |
$ kubectl create deploy [deploy_name] --image=ngi nx |
Interactive Pod
$ kubectl run [pod_name] --image=busybox --rm -it --restart=Never -- sh |
Output YAMLto aFile
$ kubectl create deploy [deploy_name] --image=ngi nx --dry-run -o yaml > deploy.yaml |
$ kubectl get po [pod_name] -o yaml --export > pod. yaml |
Getting Help
$ kubectl -h |
$ kubectl create -h |
$ kubectl run -h |
$ kubectl explain deploy.spec |