kubernetes list all running pods name

Question

I looking for the option to list all pods name

How to do without awk (or cut). Now i'm using this command

kubectl get --no-headers=true pods -o name | awk -F "/" '{print $2}'

Actually your command is quite good (comparing to suggested solutions below). You can replace the `awk` with **grep -Po '\/\K.+'** to [keep selection after \K](https://www.regular-expressions.info/keep.html), and also remove `--no-headers=true` — Noam Manos, Feb 26 '20 at 14:41
I find `cut -d/ -f2` is easier to type than either the `awk` or the `grep`. — Robert Steward, Apr 15 '21 at 15:31

juancho85 · Answer 1 · 2018-10-07T20:21:14.660

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Personally I prefer this method because it relies only on kubectl, is not very verbose and we don't get the pod/ prefix in the output:

kubectl get pods --no-headers -o custom-columns=":metadata.name"

edited Oct 07 '18 at 20:21

answered Oct 07 '18 at 18:14

juancho85

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Welcome to SO. Your answer would be more useful to a greater number of users if you explain why you prefer this method. – Nick Oct 07 '18 at 18:37
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Indeed, I have added some explanation on why I do prefer this approach – juancho85 Oct 07 '18 at 20:22
This is much nicer than the usual template solution. – Valéry Mar 05 '19 at 10:33
I like this one much better – Moulick Oct 07 '19 at 05:26
It should be a `.` not a `:` for the filter, i.e. `.metadata.name` – Craig Ringer Aug 30 '21 at 03:35
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The semicolon is needed, since custom-columns expects a header and then a jsonpath expression. indeed, the json expression could have a leading dot, but it does not seem necessary for it to work. – juancho85 Oct 02 '21 at 10:36

score 121 · Accepted Answer · edited Aug 14 '19 at 17:39

121

You can use the go templating option built into kubectl to format the output to just show the names for each pod:

kubectl get pods --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'

edited Aug 14 '19 at 17:39

Community

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answered Mar 04 '16 at 18:35

Robert Bailey

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Thanks, Can't find any reference about go-template. – Ali SAID OMAR Mar 07 '16 at 08:26
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http://kubernetes.io/v1.1/docs/user-guide/kubectl/kubectl_get.html describes the different output types and gives an example of using the template. The templating language itself is described at https://golang.org/pkg/text/template/ and you can run `kubectl describe -o yaml pod ` to see the fields that are available to operate on. – Robert Bailey Mar 07 '16 at 19:30
You have a whitespace too much in the first template declaration: {{range .items}} – HermanTheGermanHesse Jun 09 '20 at 13:00

score 72 · Answer 3 · answered Sep 22 '18 at 19:12

72

Get Names of pods using -o=name Refer this cheatsheet for more.

kubectl get pods -o=name

Example output:

pod/kube-xyz-53kg5
pod/kube-xyz-jh7d2
pod/kube-xyz-subt9

To remove trailing pod/ you can use standard bash sed command

kubectl get pods -o=name | sed "s/^.\{4\}//"

Example output:

kube-xyz-53kg5
kube-pqr-jh7d2
kube-abc-s2bt9

To get podname with particular string, standard linux grep command

kubectl get pods -o=name | grep kube-pqr | sed "s/^.\{4\}//"

Example output:

kube-pqr-jh7d2

With this name, you can do things, like adding alias to get shell to running container:

alias bashkubepqr='kubectl exec -it $(kubectl get pods -o=name | grep kube-pqr | sed "s/^.\{4\}//") bash'

answered Sep 22 '18 at 19:12

krozaine

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Actually, you can just do: `kubectl get pods -o name` then use the output `pod/mypod-xxxxx` like this : `kubectl describe pod/mypod-xxxxx` – Brou Nov 21 '18 at 16:14
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Using awk instead of sed would make it working with anything (you are ignoring the first 4 characters, but what about another resource than pods, with a longer or shorter name?). With awk : `kubectl get pods -o=name | awk -F "/" '{print $2}'` – ZedTuX Jan 16 '19 at 05:30
As @Brou pointed out, `resource/name` is a valid format to kubectl to specific objects, so you don't need to trim the `pod/` prefix. – Devy Mar 08 '19 at 18:51

score 48 · Answer 4 · answered Nov 17 '17 at 05:26

48

You can use custom-columns in output option to get the name and --no-headers option

kubectl get --no-headers=true pods -l app=external-dns -o custom-columns=:metadata.name

answered Nov 17 '17 at 05:26

ADavid

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`custom-columns` is much more streamlined way of doing this. – deepdive Feb 28 '20 at 02:25
Why you use `-l`? – vitaliis Jan 04 '22 at 06:02

score 18 · Answer 5 · answered May 21 '18 at 09:38

18

You can use -o=name to display only pod names. For example to list proxy pods you can use:

kubectl get pods -o=name --all-namespaces | grep kube-proxy

The result is:

pod/kube-proxy-95rlj
pod/kube-proxy-bm77b
pod/kube-proxy-clc25

answered May 21 '18 at 09:38

Amadey

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OP said he just wanted to get rid of the leading "pod/" part... – Orabîg Oct 31 '19 at 08:33

ponsfrilus · Answer 6 · 2022-12-01T05:17:56.543

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Here is another way to do it:

kubectl get pods -o=name --field-selector=status.phase=Running

The --field-selector=status.phase=Running is needed as the question mention all the running pod names. If the all in the question is for all the namespaces, just add the --all-namespaces option.

Note that this command is very convenient when one want a quick way to access something from the running pod(s), such as logs :

kubectl logs -f $(kubectl get pods -o=name --field-selector=status.phase=Running)

edited Dec 01 '22 at 05:17

answered Sep 03 '21 at 14:16

ponsfrilus

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Actually this is the correct answer, considering the status of this question in Feb 2023. – Ron Wertlen Feb 28 '23 at 16:03

score 13 · Answer 7 · answered Nov 13 '20 at 17:44

13

There is also this solution:

kubectl get pods -o jsonpath={..metadata.name}

answered Nov 13 '20 at 17:44

Radu Gabriel

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This is the most concise way for sure, and meet's the OP's requirement of not piping through another tool, but could be problematic if there's more than one pod name returned. Appending a newline, and wrapping the name + newline in a range clause ensures readability: `kubectl get pods -o jsonpath='{range.items[*]}{..metadata.name}{"\n"}{end}'` – Dale C. Anderson Mar 17 '22 at 22:51
@DaleC.Anderson - running `kubectl -n pool-agents get pods -o jsonpath='{range.items[*]}{..metadata.name}{"\n"}{end}'` returns this error: `error: error parsing jsonpath {range.items[*]}{..metadata.name}{\n}{end}, unrecognized character in action: U+005C '\'` any idea why? – Tar Nov 10 '22 at 19:32
@Tar no idea. If you quote it as written, you shouldn't get that error, but if you skip the single quotes surrounding the json expression, it produces that error. Maybe its your shell, or maybe you missed some chars? If the error persists, ask a new Q. Thats what this site is for . – Dale C. Anderson Nov 12 '22 at 00:15
@DaleC.Anderson ok found it: need to swap single quotes with double quotes in all places in Windows' console (CMD and PowerShell). This works: `kubectl -n pool-agents get pods -o jsonpath="{range.items[*]}{..metadata.name}{'\n'}{end}"` – Tar Nov 12 '22 at 16:38

score 8 · Answer 8 · edited Dec 11 '20 at 18:13

8

Get all running pods in the namespace

kubectl get pods --field-selector=status.phase=Running --no-headers -o custom-columns=":metadata.name"

From viewing, finding resources.

You could also specify namespace with -n <namespace name>.

edited Dec 11 '20 at 18:13

Mateusz Piotrowski

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answered Nov 04 '20 at 22:34

Zstack

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Thanks! This is what I want - just pod names without pod/ prefix – Kirill Mikhailov Feb 10 '23 at 05:24

Vincent De Smet · Answer 9 · 2018-04-04T11:02:04.593

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jsonpath alternative

kubectl get po -o jsonpath="{range .items[*]}{@.metadata.name}{end}" -l app=nginx-ingress,component=controller

see also: more examples of kubectl output options

edited Apr 04 '18 at 11:02

answered Apr 04 '18 at 10:46

Vincent De Smet

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score 3 · Answer 10 · answered Feb 11 '21 at 12:30

If you want to extract specific container's pod name then A simple command can do all the hard work

kubectl get pods --template '{{range .items}}{{.metadata.name}}{{end}}' --selector=app=<CONTAINER-NAME>

Just replace <CONTAINER-NAME> with your service container-name

Vikash Pandey · Answer 11 · 2022-04-12T19:34:47.243

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Well, In our case we have kept pods inside different namespace, here to identify the specific pod or list of pods we ran following command-

Approach 1:

To get the list of namespaces kubectl get ns -A
To get all the pods inside one namespaces kubectl get pods -n <namespace>

Approach 2:

Use this command-

kubectl get pods --all-namespaces

edited Apr 12 '22 at 19:34

answered Apr 12 '22 at 19:27

Vikash Pandey

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score 0 · Answer 12 · answered Mar 08 '23 at 12:40

0

I am using like below :

kubectl get pods -l service=usercontent

It brings all pods that related this service.

answered Mar 08 '23 at 12:40

nzrytmn

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score 0 · Answer 13 · answered Jun 12 '23 at 14:11

0

kubectl get pods --no-headers -o name

answered Jun 12 '23 at 14:11

DimiDak

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Kasthuri Shravankumar · Answer 14 · 2023-03-16T06:30:42.403

kubectl exec -it $(kubectl get pods | grep mess | awk '{print $1}') /bin/bash


hostname -i

https://kubernetes.io/docs/tasks/access-application-cluster/list-all-running-container-images/

kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}" |tr -s '[[:space:]]' '\n' |sort |uniq  | grep mess

kubectl get pods --all-namespaces -o jsonpath='{range .items[*]}{"\n"}{.metadata.name}{":\t"}{range .spec.containers[*]}{.image}{", "}{end}{end}' |\

sort

feca4d9f-02db-4edf-88a2-6e9d169a92a9

You can get all the values of a ConfigMap in one line by using the kubectl get command with the -o go-template option to iterate over the values and print them on separate lines. Here's an example:

kubectl get configmap MY_CONFIG_MAP -o go-template='{{range $k,$v := .data}}{{$k}}={{$v}}{{"\n"}}{{end}}'

kubectl get configmap MY_CONFIG_MAP -o jsonpath='{.data}'

score -10 · Answer 15 · answered Jan 14 '19 at 08:09

-10

kubectl get po --all-namespaces | awk '{if ($4 != "Running") system ("kubectl -n " $1 " delete pods " $2 " --grace-period=0 " " --force ")}'

answered Jan 14 '19 at 08:09

lanni654321

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This does more (destructively, even) than what is asked in the question. – Robert Schmidt Jul 03 '19 at 14:40
Don't use this command! You can remove things you don't want to remove – McNally Paulo Dec 29 '22 at 17:53
Delete this answer! – colm.anseo Jan 11 '23 at 19:38

kubernetes list all running pods name

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