Kubectl port-forward
kubectl port-forward is a Kubernetes command that forwards connections from local ports to ports on pods or other Kubernetes resources.
Kubernetes in Action, Second Edition
kubectl port-forward is a kubectl operation that forwards traffic from a local port to a port on a Kubernetes resource such as a pod.
- How it is used
- Supports local development and troubleshooting by proxying requests to applications running in pods.
- How deep it goes
- Explains commands, local responses, multi-port forwarding, and the proxy path through cluster components.
- Examples
- Uses Kiada pod requests, localhost curl commands, and HTTP, HTTPS, and administration ports in a multi-container pod.
- What you can do after
- Apply it via kubectl to access pod or service ports locally and test application responses with curl or a browser.
Read how Kubernetes in Action, Second Edition explains kubectl port-forward →
Learn Docker in a Month of Lunches, Second Edition
kubectl port-forward is a kubectl command that forwards local network traffic to a port on a Kubernetes Pod or other resource.
- How it is used
- Uses a local network path to test or debug a Pod that is otherwise unreachable from outside the Kubernetes cluster.
- How deep it goes
- Explains the traffic path and demonstrates one command, but stops short of detailed forwarding internals.
- Examples
- Demonstrates forwarding localhost:8015 to numbers-api port 80 and browsing to /rng.
- What you can do after
- Operate/configure kubectl port-forward to reach and debug a Pod through a local browser.
Read how Learn Docker in a Month of Lunches, Second Edition explains kubectl port-forward →
Related concepts
- kubectluses · kubectl is the Kubernetes command-line client for communicating with the Kubernetes API and managing cluster resources.
- kubernetes api serveruses · The Kubernetes API server is the control-plane component that exposes, validates, and processes the Kubernetes API for managing cluster resources and state.
- poduses · A Kubernetes Pod is the smallest deployable unit in Kubernetes, grouping one or more co-located containers that share networking and other resources.
- kubeletuses · The kubelet is the Kubernetes node agent that manages Pod containers, ensures they run according to their specifications, and reports their status to the control plane.
- port forwardingkind of · Port forwarding is a networking technique that redirects traffic from a port on one endpoint to a port or service on another endpoint.
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