Difference between revisions of "Kubectl exec --help"

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   # Get output from running the 'date' command from pod mypod, using the first container by default
 
   # Get output from running the 'date' command from pod mypod, using the first container by default
 
   kubectl exec mypod -- date
 
   kubectl exec mypod -- date
 
+
 
   # Get output from running the 'date' command in ruby-container from pod mypod
 
   # Get output from running the 'date' command in ruby-container from pod mypod
 
   kubectl exec mypod -c ruby-container -- date
 
   kubectl exec mypod -c ruby-container -- date
 
+
 
   # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod
 
   # 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
 
   # and sends stdout/stderr from 'bash' back to the client
 
   kubectl exec mypod -c ruby-container -i -t -- bash -il
 
   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
 
   # 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),
 
   # If the command you want to execute in the pod has any flags in common (e.g. -i),
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   # unless that is how you would execute it normally (i.e., do ls -t /usr, not "ls -t /usr")
 
   # 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
 
   kubectl exec mypod -i -t -- ls -t /usr
 
+
 
   # Get output from running 'date' command from the first pod of the deployment mydeployment, using
 
   # Get output from running 'date' command from the first pod of the deployment mydeployment, using
 
the first container by default
 
the first container by default
 
   kubectl exec deploy/mydeployment -- date
 
   kubectl exec deploy/mydeployment -- date
 
+
 
   # Get output from running 'date' command from the first pod of the service myservice, using the
 
   # Get output from running 'date' command from the first pod of the service myservice, using the
 
first container by default
 
first container by default
 
   kubectl exec svc/myservice -- date
 
   kubectl exec svc/myservice -- date
 
+
 
  Options:
 
  Options:
 
     -c, --container='':
 
     -c, --container='':
 
Container name. If omitted, use the kubectl.kubernetes.io/default-container annotation for
 
Container name. If omitted, use the kubectl.kubernetes.io/default-container annotation for
 
selecting the container to be attached or the first container in the pod will be chosen
 
selecting the container to be attached or the first container in the pod will be chosen
 
+
 
     -f, --filename=[]:
 
     -f, --filename=[]:
 
to use to exec into the resource
 
to use to exec into the resource
 
+
 
     --pod-running-timeout=1m0s:
 
     --pod-running-timeout=1m0s:
 
The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one pod
 
The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one pod
 
is running
 
is running
 
+
 
     -q, --quiet=false:
 
     -q, --quiet=false:
 
Only print output from the remote session
 
Only print output from the remote session
 
+
 
     -i, --stdin=false:
 
     -i, --stdin=false:
 
Pass stdin to the container
 
Pass stdin to the container
 
+
 
     -t, --tty=false:
 
     -t, --tty=false:
 
Stdin is a TTY
 
Stdin is a TTY
 
+
 
  Usage:
 
  Usage:
 
   kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...] [options]
 
   kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...] [options]
 
+
 
  Use "kubectl options" for a list of global command-line options (applies to all commands).
 
  Use "kubectl options" for a list of global command-line options (applies to all commands).
  

Revision as of 17:29, 18 July 2022

Execute a command in a container.

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

 # Get output from running the '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

Options:
   -c, --container=:

Container name. If omitted, use the kubectl.kubernetes.io/default-container annotation for selecting the container to be attached or the first container in the pod will be chosen

   -f, --filename=[]:

to use to exec into the resource

   --pod-running-timeout=1m0s:

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

   -q, --quiet=false:

Only print output from the remote session

   -i, --stdin=false:

Pass stdin to the container

   -t, --tty=false:

Stdin is a TTY

Usage:
 kubectl exec (POD | TYPE/NAME) [-c CONTAINER] [flags] -- COMMAND [args...] [options]

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


See also

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