### Relationship between the CLI and controller

The CLI and controller share the same API and codebase for generating manifests from the API. You can think of the
controller as the CLI command `istioctl install` running in a loop in a pod in the cluster and using the config
from the in-cluster IstioOperator custom resource (CR).
There are two major differences:

    - it also sets up a UDS socket for istio-cni to send logs to this container.
    - based on config, it may run the 'repair' controller that detects pods where istio setup fails and restarts them, or created in corner cases.
    - if ambient is enabled, also runs an ambient controller, watching Pod, Namespace

- `istio-cni`
    - CNI plugin executable copied to `/opt/cni/bin`
    - currently implemented for k8s only