How to pass workflow metadata labels to pod labels or annotations

[dpeer6]

Hi,

I would like to pass creator label, which automatically added to any workflow, to the workflow pods, so I can later capture/filter it with our logging system.

Example from one of my workflows:
Labels:
workflows.argoproj.io/creator=system-serviceaccount-argo-dpeer

I tried using podMetadata label/annotations in my workflow YAML but none worked.
Something like:
spec:
podMetadata:
annotations:
myUser: "{{workflow.creator}}"

Do you have an idea how can I do that?

[dpeer6]

Can podSpecPatch do the trick?
If so, how?

[sarabala1979]

yes, podSpecPatch will work for you scenario. you can try it.

[dpeer6]

Thank you... can you share how can i pass the creator label from the workflow to the pods?
I mean I tried to get that value, but could not find how. It appears only at the workflow object

[dpeer6]

There are several ways to pass info as pod label apparently, but how can I get/refer to that creator value from the workflow YAML?
"workflows.argoproj.io/creator=system-serviceaccount-argo-dpeer"

Using: {{workflow.labels.workflows.argoproj.io/creator}} does not work.

[sarabala1979]

Are you creating workflow through UI or CLI or API?
To refer and resolve the passed value in it has to be workflow parameter (https://github.com/argoproj/argo-workflows/blob/fa4b32a5347d924079072fe760768462d40f6b3b/docs/variables.md).
you have to pass it as a parameter

[dpeer6]

I am using the CLI.
I thought that there are some global variables I can refer to.
When I'm using {{workflow.namespace}} it does get passed as pod label/annotation to all pods in the workflow.

So I'm guessing I'm doing something wrong with that specific label.
(Yeh, I can use params, or some many other wrapping mechanism, but I like to use that specific label for the sake of simplicity and enforcement to really understand who's Bearer TOKEN was used)

I tried that too in several variations with no success:
{{workflow.labels['workflows.argoproj.io/creator']}}

[dpeer6]

ok, resolved.

I might had a typo or something similar, but this worked for me:

podMetadata:
    labels:
      myUser: "{{workflow.labels.workflows.argoproj.io/creator}}"