Difference between revisions of "Kubectl port-forward"
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| Line 4: | Line 4: | ||
== Examples == | == Examples == | ||
| − | * <code>kubectl --namespace default port-forward [[$POD_NAME]] [[3000]]</code> | + | * [[Grafana]]: <code>kubectl --namespace default port-forward [[$POD_NAME]] [[3000]]</code> |
| − | * <code>kubectl --namespace default port-forward $POD_NAME [[9090]]</code> | + | * [[Prometheus]]: <code>kubectl --namespace default port-forward $POD_NAME [[9090]]</code> |
* <code>kubectl port-forward [[svc]]/[[argocd]]-server -n argocd 8080:443</code> | * <code>kubectl port-forward [[svc]]/[[argocd]]-server -n argocd 8080:443</code> | ||
Revision as of 12:06, 21 July 2022
kubectl port-forward forward one or more local ports to a pod.
Examples
- Grafana:
kubectl --namespace default port-forward $POD_NAME 3000 - Prometheus:
kubectl --namespace default port-forward $POD_NAME 9090 kubectl port-forward svc/argocd-server -n argocd 8080:443
export POD_NAME=$(kubectl get pods --namespace default -l "app.kubernetes.io/name=grafana,app.kubernetes.io/instance=grafana" -o jsonpath="{.items[0].metadata.name}")
kubectl --namespace default port-forward $POD_NAME 3000 Forwarding from 127.0.0.1:3000 -> 3000 Forwarding from [::1]:3000 -> 3000
kubectl -n default port-forward $POD_NAME 8443:8443 Forwarding from 127.0.0.1:8443 -> 8443 Forwarding from [::1]:8443 -> 8443
List of ports, do not included port-forward ports:
kubectl get svc --all-namespaces -o json | jq '.items[] | {name:.metadata.name, p:.spec.ports[] } | select( .p.nodePort != null ) | "\(.name): localhost:\(.p.nodePort) -> \(.p.port) -> \(.p.targetPort)"'
Examples with errors
kubectl --namespace default port-forward $POD_NAME 3000 error: unable to forward port because pod is not running. Current status=Failed
kubectl --namespace default port-forward $POD_NAME 3000 error: unable to forward port because pod is not running. Current status=Pending
kubectl --namespace default port-forward $POD_NAME 3000 error: You must be logged in to the server (Unauthorized)
kubectl --namespace default port-forward $POD_NAME 3000 error: TYPE/NAME and list of ports are required for port-forward See 'kubectl port-forward -h' for help and examples
bind: address alredy in use unable to create listener
Solution: lsof -i
Related
See also
kubectl port-forward [ --help ]- Kubernetes networking: network policies, Network Policy Providers, CNI, Calico, flannel, Service mesh, Istio,
kube-proxy, coredns, AWS VPC CNI: vpc-cni, Kubernetes: Ingress controllers, IPVS, ServiceTypes:LoadBalancer, ClusterIP, NodePort, ExternalName, Endpoints, EndpointSlices, Kubernetes DNS,svc.cluster.local, Weave Net - Kubernetes services,
kubectl get services, kubectl describe service,kubectl create service[loadbalancer|nodeport|clusterip|externalname ], kubectl expose,headless service, service.beta.kubernetes.io
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