Can I set the name of a workflow started from a WorkflowTemplate to a parameter

[seyhbold]

Hi,

I have a WorkflowTemplate that is used from an argo-events sensor triggered after a S3 bucket notification. Now I have trouble to find the workflows when I search for an object key.

Is there any way to set the title or description of a Workflow containing a parameter passed to the WorkflowTemplate?

Thank you very much

[jswxstw]

You can directly obtain the workflow name from the environment variable: ARGO_WORKFLOW_NAME without any additional changes.

[seyhbold]

Hi @jswxstw, sorry that I answer that late (.. next year)

Thank you, but I think my problem is the other way round.
I pass a parameter when creating a workflow from a workflowTemplate.

i.e.

OBJECT_KEY: s3://bucket/incoming/sku_3772821.xml

Now I want to set a label or an annotation on the created workflow containing the object key so that I can search the workflow by using the key in the argo workflows server ui.

Is this possible?

[jswxstw]

You can add labels/annotations to Workflows with workflowMetadata.

But it is important to note that, s3://bucket/incoming/sku_3772821.xml does not meet the format requirements for labels.

[seyhbold]

Thank you very much,

I tried:

apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: hello-world-template-global-arg
spec:
  workflowMetadata:
    annotations:
      workflows.argoproj.io/description: "{{inputs.parameters.msg}}"

  arguments:
    parameters:
      - name: msg

  entrypoint: hello-world

  templates:
    - name: hello-world
      inputs:
        parameters:
          - name: msg
            value: ""
      container:
        image: busybox
        command: [echo]
        args: ["{{inputs.parameters.msg}}"]

invoked it from the UI.

and got:

I was hoping to see the message in the UI

And {{inputs.parameters.msg}} doesn't meet the requirements for labels as well.
Is there any way to add parameters to either labels or annotations?

[jswxstw]

workflows.argoproj.io/description: "{{inputs.parameters.msg}}" -> workflows.argoproj.io/description: "{{workflow.parameters.msg}}"
It will work, but if you want to search it in UI, you need to add it to labels.

[seyhbold]

It works. Perfect.
Thank you very much:

Regarding search, as I am working on very few messages <20/day I can use the browser search.

But out of curiosity, how could we add labels with dynamic data when we cannot use the template syntax here?

Maybe I could create a step that patches the workflow using ARGO_WORKFLOW_NAME.

[jswxstw]

But out of curiosity, how could we add labels with dynamic data when we cannot use the template syntax here?

I don't quite understand your requirement, can you give an example?

[seyhbold]

I have an S3 bucket that receives xml files. A bucket notification is consumed by argo-events which in turn creates a workflow from a template.

The names of the XML files contain a barcode e.g. 00731451700729.xml. I would like to search for a specific barcode.

I see this in the UI now

For my usecase this is enough.
But when I imagine lots more workflows I would like to be able to search the for a specific UPC/Barcode

maybe adding a label like upc: 00731451700729 would help, but I do not know how to do it.

[jswxstw]

You want to extract the barcode 00731451700729 from the link, am I right?
You can use expression if so, e.g. {{=split(workflow.parameters.msg, '/')[3]}}.