the project's [log viewer](https://cloud.google.com/logging/docs/view/overview) and/or the `gcloud logging read`
capability.

The following example grabs the last 10 `kubelet` logs containing the string "cmdAdd" in the log message.

```console
$ gcloud logging read "resource.type=k8s_node AND jsonPayload.SYSLOG_IDENTIFIER=kubelet AND jsonPayload.MESSAGE:cmdAdd" --limit 10 --format json
```

be used for reference. All K8s overlay values are also validated in the operator.

### Customizing the old values.yaml API

The new platform install API above deals with K8s level settings. The remaining values.yaml parameters deal with Istio
control plane operation rather than installation. For the time being, the operator just passes these through to the Helm
charts unmodified (but validated through a