kubectl patch

• https://jamesdefabia.github.io/docs/user-guide/kubectl/kubectl_patch/

Update field(s) of a resource using strategic merge patch.

kubectl patch --help
   -p, --patch=:

The patch to be applied to the resource JSON file.

kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'

kubectl patch pv

kubectl patch pvc

kubectl patch sts elastic-operator

kubectl patch cronjobs

kubectl patch provisioner  

kubectl patch ValidatingWebhookConfiguration

Stop DaemonSet by appliying a nodeSelector

• kubectl patch daemonset <name-of-daemon-set> -p '{"spec": {"template": {"spec": {"nodeSelector": {"non-existing": "true"}}}}}'

Start DaemonSet by removing the nodeSelector :

kubectl patch daemonset <name-of-daemon-set> --type json -p='[{"op": "remove", "path": "/spec/template/spec/nodeSelector/non-existing"}]'

kubectl get ds -A

kubectl patch --type=json -p='[{"op": "remove", "path": "metadata.creationTimestamp"}]'

kubectl patch configmap coredns -n kube-system --type=merge -p

Related

• K8s.io/Patch

• kubectl replace

• kubectl edit
• kubectl apply

• Kubernetes PVC resize: kubectl patch

• UnsuportedMediaType
• Unsupported Media Type
• The request is invalid: the server rejected our request due to an error in our request
• sed
• kubectl set env

See also

• kubectl patch [ cronjobs | svc | pv | pvc | sts | service | secret | sts elastic-operator | node | daemonset | serviceaccount | application | --help ]