- `IstioOperatorSpec`: The API directly defined in the
[IstioOperatorSpec proto](https://github.com/istio/api/blob/master/operator/v1alpha1/operator.proto),
including feature and component groupings, namespaces and enablement, and per-component K8s settings.
- Helm values.yaml API, implicitly defined through the various values.yaml files in the
[istio/manifests/charts](../manifests/charts/istio-operator) and schematized in the operator through

and aggregate telemetry data. Istio's control plane provides an abstraction
layer over the underlying cluster management platform, such as Kubernetes.

Istio is composed of these components:

- **Envoy** - Sidecar proxies per microservice to handle ingress/egress traffic
   between services in the cluster and from a service to external
   services. The proxies form a _secure microservice mesh_ providing a rich

			}
		}

		// TODO(Monkeyanator) should extract the validationURL from revision's validating webhook here. However,
		// to ease complexity when pointing default to revision without per-revision validating webhook,
		// instead grab the endpoint information from the mutating webhook. This is not strictly correct.
		validationWhConfig, err := fixWhConfig(client, tagWhConfig)
		if err != nil {

	cmd.PersistentFlags().BoolVarP(&reset, "reset", "r", reset, "Reset levels to default value (warning).")
	cmd.PersistentFlags().StringVar(&loggerLevelString, "level", loggerLevelString,
		fmt.Sprintf("Comma-separated minimum per-logger level of messages to output, in the form of"+
			" [<logger>:]<level>,[<logger>:]<level>,... or <level> to change all active loggers, "+

  // For example:
  //   - "/healthz" is legal
  //   - "/hea*" is illegal
  //   - "/hea" is legal but matches nothing
  //   - "/hea/*" also matches nothing
  //   - "/healthz/*" matches all per-component health checks.
  // "*" matches all non-resource urls. if it is present, it must be the only entry.
  // +listType=set
  // Required.
  repeated string nonResourceURLs = 6;
}

  // For example:
  //   - "/healthz" is legal
  //   - "/hea*" is illegal
  //   - "/hea" is legal but matches nothing
  //   - "/hea/*" also matches nothing
  //   - "/healthz/*" matches all per-component health checks.
  // "*" matches all non-resource urls. if it is present, it must be the only entry.
  // +listType=set
  // Required.
  repeated string nonResourceURLs = 6;
}

	_, err := runManifestGenerate([]string{inPathBase}, "", liveCharts, []string{"templates/deployment.yaml"})
	if !strings.Contains(err.Error(), "contains multiple IstioOperator CRs, only one per file is supported") {
		t.Fatalf("got %v, expected error for file with multiple IOPs", err)
	}
}

func TestBareValues(t *testing.T) {
	inPathBase := filepath.Join(testDataDir, "input/bare_values.yaml")