Support workflow parameters as a value for "artifactRepositoryRef.key"

[kulinskyvs]

Summary

Could it be possible to add support of workflow parameters as a value of "artifactRepositoryRef.key" for workflows/workflowTemplates?

Use Cases

I have a ConfigMap with several supported Artifact Repositories.

apiVersion: v1
kind: ConfigMap
name: artifact-repositories
data:
  aws-s3: |
    s3:
      bucket: bucketname
      accessKeySecret:
        name: s3-secret
        key: accesskey
      secretKeySecret:
        name: s3-secret
        key: secretkey
  minio: |
    s3:
      bucket: bucketname
      insecure: true
      accessKeySecret:
        name: minio-secret
        key: accesskey
      secretKeySecret:
        name: minio-secret
        key: secretkey
      endpoint: minio:9000

Would be great to have the ability to set which artifact repository is supposed to be used by a workflow when submitting it from a workflow template through the workflow input parameters.

apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: my-workflow-template
spec:
  arguments:
    parameters:
      - name: artifactRepository
        value: "aws-s3"
  artifactRepositoryRef:
    key: "{{workflow.parameters.artifactRepository}}"
  templates:
  .........

[alexec]

Please raise an enhancement propsal.

[kulinskyvs]

thank you for the response.
Will transform this into enhancement request