name: http
        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy
        resources: {}
      initContainers:
      - image: docker.io/istio/proxy_init:unittest-test
        name: istio-init
        resources: {}
status: {}

        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}
      initContainers:
      - image: docker.io/istio/proxy_init:unittest-test
        name: istio-init
        resources: {}
status: {}

        resources: {}
      - image: docker.io/istio/proxy_debug:unittest
        name: istio-proxy
        resources: {}
      initContainers:
      - image: docker.io/istio/proxy_init:unittest-testiop
        name: istio-init
        resources: {}
status: {}

  // +optional
  repeated k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector clusterRoleSelectors = 1;
}

// ClusterRole is a cluster level, logical grouping of PolicyRules that can be referenced as a unit by a RoleBinding or ClusterRoleBinding.
message ClusterRole {
  // Standard object's metadata.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // +optional
  repeated k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector clusterRoleSelectors = 1;
}

// ClusterRole is a cluster level, logical grouping of PolicyRules that can be referenced as a unit by a RoleBinding or ClusterRoleBinding.
// Deprecated in v1.17 in favor of rbac.authorization.k8s.io/v1 ClusterRole, and will no longer be served in v1.22.
message ClusterRole {
  // Standard object's metadata.
  // +optional

  // +optional
  repeated k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector clusterRoleSelectors = 1;
}

// ClusterRole is a cluster level, logical grouping of PolicyRules that can be referenced as a unit by a RoleBinding or ClusterRoleBinding.
// Deprecated in v1.17 in favor of rbac.authorization.k8s.io/v1 ClusterRole, and will no longer be served in v1.22.
message ClusterRole {
  // Standard object's metadata.
  // +optional

`kube.Client` just bundles these all in one place, so we have a single object to pass around anywhere we need Kubernetes access.
Additionally, it has a fake client variant, that does the same thing but with fake clients for use in unit tests.

Aside from this, there are a few conveniences and workarounds built-in to the client to make things simpler.

*All Istio Kubernetes usage should use this library and not operate on Kubernetes clients directly.*