The details for the deployment & installation of this plugin were pretty much lifted directly from the
[Calico CNI plugin](https://github.com/projectcalico/cni-plugin).

Specifically:

- The CNI installation script is containerized and deployed as a daemonset in k8s.  The relevant calico k8s manifests were used as the model for the istio-cni plugin's manifest:

[schema](pkg/apis/istio/v1alpha1/values_types.proto)). Values.yaml settings
are overridden the same way as the new API, though a customized CR overlaid over default values for the selected
profile. Here's an example of overriding some global level default values ([samples/values-global.yaml](samples/values-global.yaml)):

```yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
spec:
  profile: sds

In this README:

- [Introduction](#introduction)
- [Repositories](#repositories)
- [Issue management](#issue-management)

In addition, here are some other documents you may wish to read:

- [Istio Community](https://github.com/istio/community#istio-community) - describes how to get involved and contribute to the Istio project

```

Note the name and labels are overridden to match the names of the existing installation.

Warning: the helm charts here default to using port 80 and 443, while the old charts used 8080 and 8443.
If you have AuthorizationPolicies that reference port these ports, you should update them during this process,
or customize the ports to match the old defaults.