finding the argocd server which manages a certain resource

[eranreshef-starkware]

Is there a way for me to find out which argocd instance is responsible for a certain resource in a certain k8s repo?
Lets say I have 3 different argocd instances A, B, and C which control 3 different target clusters X, Y, and Z. I am now trying to debug a certain k8s resource in cluster Y and I would like to know which one of my argocd instances manages that cluster.
Is that information saved somewhere in the target clusters?

Thanks 🙏

[ChristianCiach]

The answer is probably "no". The next best thing you could do for the future is to use different tracking labels for different Argo CD instances.

For example, you could put this into your argocd-cm ConfigMap of your A instance:

application.instanceLabelKey: 'argocd.argoproj.io/instance-a'

It is probably not a good idea to change this for existing clusters...

Of course, this only works if you didn't change application.resourceTrackingMethod to annotation.

[ChristianCiach]

A nicer solution would be something like this:

• feat(14638): Set managed-by label on installed resources (Alpha) #14945

But in the current state of this PR, the value argocd is unfortunately hardcoded.

[ChristianCiach]

With ArgoCD 2.13 you can now configure an installationID that will be added to all managed resources as an annotation named argocd.argoproj.io/installation-id.

https://argo-cd.readthedocs.io/en/release-2.13/user-guide/resource_tracking/#installation-id