Possible to run Argo Workflows in cluster mode

[norman-zon]

Ist it possible, using the helm chart, to run argo-workflows in cluster mode?

As far as I can tell from the chart it is not possible to set singleNamespace: false and also unset workflowNamespaces.

My goal is to have the argo-workflow controller watch all namespaces.

[yu-croco]

Ist it possible, using the helm chart, to run argo-workflows in cluster mode?

If you set .Values.singleNamespace as false, it works as cluster scoped .
Ref: https://argo-workflows.readthedocs.io/en/latest/managed-namespace/

As far as I can tell from the chart it is not possible to set singleNamespace: false and also unset workflowNamespaces.

As the doc says, you are supposed to set all namespaces in workflowNamespaces instead of unset, or you can create SA in individual namespaces.
Ref: https://github.com/argoproj/argo-helm/tree/main/charts/argo-workflows#serviceaccount-for-workflow-spec

[norman-zon]

Thanks for the explanation.
I am not so much worried about having to create the SAs manually, but rather the according Role and RoleBinding. But as far as I understand there is no way of using a ClusterRole and ClusterRoleBinding instead of separate ones per namespace?

[yu-croco]

But as far as I understand there is no way of using a ClusterRole and ClusterRoleBinding instead of separate ones per namespace?

Yes, you are right.
argo-helm follows upstream's manifest and upstream provides Role/RoleBinding instead of cluster scope, so I think it's inhered as Role/RoleBinding in argo-helm. 🤔
https://github.com/argoproj/argo-workflows/blob/eb23eb6b84a1ecf0826a4e16d6a2032fd0cb08b7/manifests/quick-start-minimal.yaml#L2735-L2757