// +optional
  optional string user = 3;

  // Groups is the groups you're testing for.
  // +optional
  repeated string group = 4;

  // Extra corresponds to the user.Info.GetExtra() method from the authenticator.  Since that is input to the authorizer
  // it needs a reflection here.
  // +optional
  map<string, ExtraValue> extra = 5;

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:

    #
    # The PSP controller would add corresponding annotations to the pod spec for each container. However, this happens before
    # the inject adds additional containers, so we must specify them explicitly here. With the above example, we could specify:
    # injectedAnnotations:
    #   container.apparmor.security.beta.kubernetes.io/istio-init: runtime/default

  // +optional
  optional string user = 3;

  // Groups is the groups you're testing for.
  // +optional
  repeated string groups = 4;

  // Extra corresponds to the user.Info.GetExtra() method from the authenticator.  Since that is input to the authorizer
  // it needs a reflection here.
  // +optional
  map<string, ExtraValue> extra = 5;

	// in that case, try finding the netns using procfs.
	if err := s.rescanPod(pod); err != nil {
		log.Errorf("error scanning proc: error was %s", err)
		return nil, err
	}
	// try again. we can still get here if the pod is in the process of being created.
	// in this case the CNI will be invoked soon and provide us with the netns.
	openNetns = s.currentPodSnapshot.Get(string(pod.UID))
	if openNetns == nil {

  // Spec for the ResourceClaim. The entire content is copied unchanged
  // into the ResourceClaim that gets created from this template. The
  // same fields as in a ResourceClaim are also valid here.
  optional ResourceClaimSpec spec = 2;
}

// ResourceClass is used by administrators to influence how resources
// are allocated.
//
// This is an alpha type and requires enabling the DynamicResourceAllocation

// applyWithReconciler applies the given manifest string using the given reconciler.
func applyWithReconciler(reconciler *helmreconciler.HelmReconciler, manifest string) error {
	m := name.Manifest{
		// Name is not important here, only Content will be applied.
		Name:    name.IstioOperatorComponentName,
		Content: manifest,
	}
	_, err := reconciler.ApplyManifest(m)
	return err
}

## See the License for the specific language governing permissions and
## limitations under the License.

# Our build tools, post jammy, breaks old versions of docker.
# These old versions are surprisingly common, so build in a check here
define warning
Docker version is too old, please upgrade to a newer version.
endef
ifneq ($(findstring google,$(HOSTNAME)),)
warning+=Googlers: go/installdocker\#the-version-of-docker-thats-installed-is-old-eg-1126
endif

In the end, [after evaluation](https://docs.google.com/document/d/1c2123cKuYsBDpIon9FFdctWTUIMFweSjgwG7r8l3818/edit), the decision was to move forward with a Rust implementation.
This offered performance benefits that were too large to leave on the table, as well as opportunities to tune to our specific needs.

## Configuration protocol

[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