Fresh dep ensure

vendor/k8s.io/kubernetes/pkg/kubelet/runtimeclass/BUILD

@@ -0,0 +1,45 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["runtimeclass_manager.go"],
+    importpath = "k8s.io/kubernetes/pkg/kubelet/runtimeclass",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
+        "//staging/src/k8s.io/client-go/dynamic:go_default_library",
+        "//staging/src/k8s.io/client-go/tools/cache:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [
+        ":package-srcs",
+        "//pkg/kubelet/runtimeclass/testing:all-srcs",
+    ],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["runtimeclass_manager_test.go"],
+    embed = [":go_default_library"],
+    deps = [
+        "//pkg/kubelet/runtimeclass/testing:go_default_library",
+        "//vendor/github.com/stretchr/testify/assert:go_default_library",
+        "//vendor/k8s.io/utils/pointer:go_default_library",
+    ],
+)

vendor/k8s.io/kubernetes/pkg/kubelet/runtimeclass/runtimeclass_manager.go

@@ -0,0 +1,97 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package runtimeclass
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/client-go/dynamic"
+	"k8s.io/client-go/tools/cache"
+)
+
+var (
+	runtimeClassGVR = schema.GroupVersionResource{
+		Group:    "node.k8s.io",
+		Version:  "v1alpha1",
+		Resource: "runtimeclasses",
+	}
+)
+
+// Manager caches RuntimeClass API objects, and provides accessors to the Kubelet.
+type Manager struct {
+	informer cache.SharedInformer
+}
+
+// NewManager returns a new RuntimeClass Manager. Run must be called before the manager can be used.
+func NewManager(client dynamic.Interface) *Manager {
+	rc := client.Resource(runtimeClassGVR)
+	lw := &cache.ListWatch{
+		ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
+			return rc.List(options)
+		},
+		WatchFunc: rc.Watch,
+	}
+	informer := cache.NewSharedInformer(lw, &unstructured.Unstructured{}, 0)
+
+	return &Manager{
+		informer: informer,
+	}
+}
+
+// Run starts syncing the RuntimeClass cache with the apiserver.
+func (m *Manager) Run(stopCh <-chan struct{}) {
+	m.informer.Run(stopCh)
+}
+
+// LookupRuntimeHandler returns the RuntimeHandler string associated with the given RuntimeClass
+// name (or the default of "" for nil). If the RuntimeClass is not found, it returns an
+// apierrors.NotFound error.
+func (m *Manager) LookupRuntimeHandler(runtimeClassName *string) (string, error) {
+	if runtimeClassName == nil || *runtimeClassName == "" {
+		// The default RuntimeClass always resolves to the empty runtime handler.
+		return "", nil
+	}
+
+	name := *runtimeClassName
+	item, exists, err := m.informer.GetStore().GetByKey(name)
+	if err != nil {
+		return "", fmt.Errorf("Failed to lookup RuntimeClass %s: %v", name, err)
+	}
+	if !exists {
+		return "", errors.NewNotFound(schema.GroupResource{
+			Group:    runtimeClassGVR.Group,
+			Resource: runtimeClassGVR.Resource,
+		}, name)
+	}
+
+	rc, ok := item.(*unstructured.Unstructured)
+	if !ok {
+		return "", fmt.Errorf("unexpected RuntimeClass type %T", item)
+	}
+
+	handler, _, err := unstructured.NestedString(rc.Object, "spec", "runtimeHandler")
+	if err != nil {
+		return "", fmt.Errorf("Invalid RuntimeClass object: %v", err)
+	}
+
+	return handler, nil
+}

vendor/k8s.io/kubernetes/pkg/kubelet/runtimeclass/runtimeclass_manager_test.go

@@ -0,0 +1,61 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package runtimeclass_test
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"k8s.io/kubernetes/pkg/kubelet/runtimeclass"
+	rctest "k8s.io/kubernetes/pkg/kubelet/runtimeclass/testing"
+	"k8s.io/utils/pointer"
+)
+
+func TestLookupRuntimeHandler(t *testing.T) {
+	tests := []struct {
+		rcn         *string
+		expected    string
+		expectError bool
+	}{
+		{rcn: nil, expected: ""},
+		{rcn: pointer.StringPtr(""), expected: ""},
+		{rcn: pointer.StringPtr(rctest.EmptyRuntimeClass), expected: ""},
+		{rcn: pointer.StringPtr(rctest.SandboxRuntimeClass), expected: "kata-containers"},
+		{rcn: pointer.StringPtr(rctest.InvalidRuntimeClass), expectError: true},
+		{rcn: pointer.StringPtr("phantom"), expectError: true},
+	}
+
+	manager := runtimeclass.NewManager(rctest.NewPopulatedDynamicClient())
+	defer rctest.StartManagerSync(t, manager)()
+
+	for _, test := range tests {
+		tname := "nil"
+		if test.rcn != nil {
+			tname = *test.rcn
+		}
+		t.Run(fmt.Sprintf("%q->%q(err:%v)", tname, test.expected, test.expectError), func(t *testing.T) {
+			handler, err := manager.LookupRuntimeHandler(test.rcn)
+			if test.expectError {
+				assert.Error(t, err, "handler=%q", handler)
+			} else {
+				assert.NoError(t, err)
+				assert.Equal(t, test.expected, handler)
+			}
+		})
+	}
+}

vendor/k8s.io/kubernetes/pkg/kubelet/runtimeclass/testing/BUILD

@@ -0,0 +1,33 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["fake_manager.go"],
+    importpath = "k8s.io/kubernetes/pkg/kubelet/runtimeclass/testing",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//pkg/kubelet/runtimeclass:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
+        "//staging/src/k8s.io/client-go/dynamic:go_default_library",
+        "//staging/src/k8s.io/client-go/dynamic/fake:go_default_library",
+        "//vendor/github.com/stretchr/testify/require:go_default_library",
+        "//vendor/k8s.io/utils/pointer:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/k8s.io/kubernetes/pkg/kubelet/runtimeclass/testing/fake_manager.go

@@ -0,0 +1,102 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package testing
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/dynamic"
+	fakedynamic "k8s.io/client-go/dynamic/fake"
+	"k8s.io/kubernetes/pkg/kubelet/runtimeclass"
+	"k8s.io/utils/pointer"
+)
+
+const (
+	// SandboxRuntimeClass is a valid RuntimeClass pre-populated in the populated dynamic client.
+	SandboxRuntimeClass = "sandbox"
+	// SandboxRuntimeHandler is the handler associated with the SandboxRuntimeClass.
+	SandboxRuntimeHandler = "kata-containers"
+
+	// EmptyRuntimeClass is a valid RuntimeClass without a handler pre-populated in the populated dynamic client.
+	EmptyRuntimeClass = "native"
+	// InvalidRuntimeClass is an invalid RuntimeClass pre-populated in the populated dynamic client.
+	InvalidRuntimeClass = "foo"
+)
+
+// NewPopulatedDynamicClient creates a dynamic client for use with the runtimeclass.Manager,
+// and populates it with a few test RuntimeClass objects.
+func NewPopulatedDynamicClient() dynamic.Interface {
+	invalidRC := NewUnstructuredRuntimeClass(InvalidRuntimeClass, "")
+	invalidRC.Object["spec"].(map[string]interface{})["runtimeHandler"] = true
+
+	client := fakedynamic.NewSimpleDynamicClient(runtime.NewScheme(),
+		NewUnstructuredRuntimeClass(EmptyRuntimeClass, ""),
+		NewUnstructuredRuntimeClass(SandboxRuntimeClass, SandboxRuntimeHandler),
+		invalidRC,
+	)
+	return client
+}
+
+// StartManagerSync runs the manager, and waits for startup by polling for the expected "native"
+// RuntimeClass to be populated. Returns a function to stop the manager, which should be called with
+// a defer:
+//     defer StartManagerSync(t, m)()
+// Any errors are considered fatal to the test.
+func StartManagerSync(t *testing.T, m *runtimeclass.Manager) func() {
+	stopCh := make(chan struct{})
+	go m.Run(stopCh)
+
+	// Wait for informer to populate.
+	err := wait.PollImmediate(100*time.Millisecond, wait.ForeverTestTimeout, func() (bool, error) {
+		_, err := m.LookupRuntimeHandler(pointer.StringPtr(EmptyRuntimeClass))
+		if err != nil {
+			if errors.IsNotFound(err) {
+				return false, nil
+			}
+			return false, err
+		}
+		return true, nil
+	})
+	require.NoError(t, err, "Failed to start manager")
+
+	return func() {
+		close(stopCh)
+	}
+}
+
+// NewUnstructuredRuntimeClass is a helper to generate an unstructured RuntimeClass resource with
+// the given name & handler.
+func NewUnstructuredRuntimeClass(name, handler string) *unstructured.Unstructured {
+	return &unstructured.Unstructured{
+		Object: map[string]interface{}{
+			"apiVersion": "node.k8s.io/v1alpha1",
+			"kind":       "RuntimeClass",
+			"metadata": map[string]interface{}{
+				"name": name,
+			},
+			"spec": map[string]interface{}{
+				"runtimeHandler": handler,
+			},
+		},
+	}
+}