Inject kube-system components

[grampelberg]

What problem are you trying to solve?

Debugging k8s issues can be difficult. I would like to inject kube-system components to get visibility into what is going on.

How should the problem be solved?

$ kubectl -n kube-system get deploy,daemonset -o yaml | linkerd inject - | kubectl apply -f -

[grampelberg]

This is likely difficult/impossible for most kube-system components because of reconciliation (the original owner will "fix" the spec back to what it was originally).

It would be possible to run something externally (#1887) on a node/node basis, but that seems like a pretty large architectural change.