kubectl port-forward

Synopsis

Forward one or more local ports to a pod.

Use resource type/name such as deployment/mydeployment to select a pod. Resource type defaults to ‘pod’ if omitted.

If there are multiple pods matching the criteria, a pod will be selected automatically. The forwarding session ends when the selected pod terminates, and a rerun of the command is needed to resume forwarding.

  1. kubectl port-forward TYPE/NAME [options] [LOCAL_PORT:]REMOTE_PORT [...[LOCAL_PORT_N:]REMOTE_PORT_N]

Examples

  1.   # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod
  2.   kubectl port-forward pod/mypod 5000 6000
  4.   # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the deployment
  5.   kubectl port-forward deployment/mydeployment 5000 6000
  7.   # Listen on port 8443 locally, forwarding to the targetPort of the service's port named "https" in a pod selected by the service
  8.   kubectl port-forward service/myservice 8443:https
  10.   # Listen on port 8888 locally, forwarding to 5000 in the pod
  11.   kubectl port-forward pod/mypod 8888:5000
  13.   # Listen on port 8888 on all addresses, forwarding to 5000 in the pod
  14.   kubectl port-forward --address 0.0.0.0 pod/mypod 8888:5000
  16.   # Listen on port 8888 on localhost and selected IP, forwarding to 5000 in the pod
  17.   kubectl port-forward --address localhost,10.19.21.23 pod/mypod 8888:5000
  19.   # Listen on a random port locally, forwarding to 5000 in the pod
  20.   kubectl port-forward pod/mypod :5000

Options

—address strings     Default: “localhost”

Addresses to listen on (comma separated). Only accepts IP addresses or localhost as a value. When localhost is supplied, kubectl will try to bind on both 127.0.0.1 and ::1 and will fail if neither of these addresses are available to bind.

-h, —help

help for port-forward

—pod-running-timeout duration     Default: 1m0s

The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one pod is running

—as string

Username to impersonate for the operation. User could be a regular user or a service account in a namespace.

—as-group strings

Group to impersonate for the operation, this flag can be repeated to specify multiple groups.

—as-uid string

UID to impersonate for the operation.

—cache-dir string     Default: “$HOME/.kube/cache”

Default cache directory

—certificate-authority string

Path to a cert file for the certificate authority

—client-certificate string

Path to a client certificate file for TLS

—client-key string

Path to a client key file for TLS

—cloud-provider-gce-l7lb-src-cidrs cidrs     Default: 130.211.0.0/22,35.191.0.0/16

CIDRs opened in GCE firewall for L7 LB traffic proxy & health checks

—cloud-provider-gce-lb-src-cidrs cidrs     Default: 130.211.0.0/22,209.85.152.0/22,209.85.204.0/22,35.191.0.0/16

CIDRs opened in GCE firewall for L4 LB traffic proxy & health checks

—cluster string

The name of the kubeconfig cluster to use

—context string

The name of the kubeconfig context to use

—default-not-ready-toleration-seconds int     Default: 300

Indicates the tolerationSeconds of the toleration for notReady:NoExecute that is added by default to every pod that does not already have such a toleration.

—default-unreachable-toleration-seconds int     Default: 300

Indicates the tolerationSeconds of the toleration for unreachable:NoExecute that is added by default to every pod that does not already have such a toleration.

—disable-compression

If true, opt-out of response compression for all requests to the server

—insecure-skip-tls-verify

If true, the server’s certificate will not be checked for validity. This will make your HTTPS connections insecure

—kubeconfig string

Path to the kubeconfig file to use for CLI requests.

—match-server-version

Require server version to match client version

-n, —namespace string

If present, the namespace scope for this CLI request

—password string

Password for basic authentication to the API server

—profile string     Default: “none”

Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex)

—profile-output string     Default: “profile.pprof”

Name of the file to write the profile to

—request-timeout string     Default: “0”

The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don’t timeout requests.

-s, —server string

The address and port of the Kubernetes API server

—storage-driver-buffer-duration duration     Default: 1m0s

Writes in the storage driver will be buffered for this duration, and committed to the non memory backends as a single transaction

—storage-driver-db string     Default: “cadvisor”

database name

—storage-driver-host string     Default: “localhost:8086”

database host:port

—storage-driver-password string     Default: “root”

database password

—storage-driver-secure

use secure connection with database

—storage-driver-table string     Default: “stats”

table name

—storage-driver-user string     Default: “root”

database username

—tls-server-name string

Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used

—token string

Bearer token for authentication to the API server

—user string

The name of the kubeconfig user to use

—username string

Username for basic authentication to the API server

—version version[=true]

—version, —version=raw prints version information and quits; —version=vX.Y.Z… sets the reported version

—warnings-as-errors

Treat warnings received from the server as errors and exit with a non-zero exit code

See Also

  • kubectl - kubectl controls the Kubernetes cluster manager