Kubectl exec

Internal

• kubectl

Overview

Execute a command in a container:

kubectl exec <pod|type/name> [-c <container>] [flags] -- <command> [args...] [options]

Example:

 kubectl exec my-pod -- 

Flags

-c,--container=

The name of the container to execute the command into. If omitted, the first container in the pod will be chosen.

-i,--stdin=false

Pass stdin to the container.

-t,--tty=false

Stdin is a TTY

--pod-running-timeout=

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

Examples:

 # Get output from running 'date' command from pod mypod, using the first container by default
 kubectl exec mypod date

 # Get output from running 'date' command in ruby-container from pod mypod
 kubectl exec mypod -c ruby-container date

 # Switch to raw terminal mode, sends stdin to 'bash' in ruby-container from pod mypod
 # and sends stdout/stderr from 'bash' back to the client
 kubectl exec mypod -c ruby-container -i -t -- bash -il

 # List contents of /usr from the first container of pod mypod and sort by modification time.
 # If the command you want to execute in the pod has any flags in common (e.g. -i),
 # you must use two dashes (--) to separate your command's flags/arguments.
 # Also note, do not surround your command and its flags/arguments with quotes
 # unless that is how you would execute it normally (i.e., do ls -t /usr, not "ls -t /usr").
 kubectl exec mypod -i -t -- ls -t /usr

 # Get output from running 'date' command from the first pod of the deployment mydeployment, using the first container

by default

 kubectl exec deploy/mydeployment date

 # Get output from running 'date' command from the first pod of the service myservice, using the first container by

default

 kubectl exec svc/myservice date

Usage:

Use "kubectl options" for a list of global command-line options (applies to all commands).