No error/warning condition if application destination namespace not monitored by Argo CD

[alexmt]

Describe the bug

No error is shown If the cluster is connected in "namespaced" mode and application is trying to a namespace that is not listed in a cluster configuration.

To Reproduce

1. Add cluster in a namespaced mode

argocd cluster add <my-context> --namespace default

2. Create an application that deploys resources to any different namespace.
3. No error message is shown and all resources are shown as out-of-sync even if resources exist.

Expected behavior

Error message that explains that namespace is wrong should be shown.

Version

v1.7.4

[jopit]

Hi @alexmt, based on your comment in my PR (#4352 (review)) I've been experimenting with a change to the GetManagedLiveObjs method in the gitops-engine project

https://github.com/jopit/gitops-engine/blob/af9eedc5e8485a3098405f9758ff27f69595cb65/pkg/cache/cluster.go#L679

When an application is created in a non-managed namespace (if that's the correct terminology), an error shows up on the application page

and when you click on the error, it show this message

Is this sort of what you had in mind for this?

The commit in my fork for this change is here: jopit/gitops-engine@af9eedc

[alexmt]

That looks correct @jopit. Can you please create PR to gitops-engine ?

[jopit]

PR is argoproj/gitops-engine#143