kubernetes set_resources_test 源码

2022-09-18
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kubernetes set_resources_test 代码

文件路径：/staging/src/k8s.io/kubectl/pkg/cmd/set/set_resources_test.go

/*
Copyright 2017 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 set

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
	"testing"

	"github.com/stretchr/testify/assert"
	appsv1 "k8s.io/api/apps/v1"
	appsv1beta1 "k8s.io/api/apps/v1beta1"
	appsv1beta2 "k8s.io/api/apps/v1beta2"
	batchv1 "k8s.io/api/batch/v1"
	corev1 "k8s.io/api/core/v1"
	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/cli-runtime/pkg/genericclioptions"
	"k8s.io/cli-runtime/pkg/resource"
	restclient "k8s.io/client-go/rest"
	"k8s.io/client-go/rest/fake"
	cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
	"k8s.io/kubectl/pkg/scheme"
)

func TestResourcesLocal(t *testing.T) {
	tf := cmdtesting.NewTestFactory().WithNamespace("test")
	defer tf.Cleanup()

	tf.Client = &fake.RESTClient{
		GroupVersion:         schema.GroupVersion{Version: ""},
		NegotiatedSerializer: scheme.Codecs.WithoutConversion(),
		Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
			t.Fatalf("unexpected request: %s %#v\n%#v", req.Method, req.URL, req)
			return nil, nil
		}),
	}
	tf.ClientConfigVal = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Version: ""}}}

	outputFormat := "name"

	streams, _, buf, _ := genericclioptions.NewTestIOStreams()
	cmd := NewCmdResources(tf, streams)
	cmd.SetOut(buf)
	cmd.SetErr(buf)
	cmd.Flags().Set("output", outputFormat)
	cmd.Flags().Set("local", "true")

	opts := SetResourcesOptions{
		PrintFlags: genericclioptions.NewPrintFlags("").WithDefaultOutput(outputFormat).WithTypeSetter(scheme.Scheme),
		FilenameOptions: resource.FilenameOptions{
			Filenames: []string{"../../../testdata/controller.yaml"}},
		Local:             true,
		Limits:            "cpu=200m,memory=512Mi",
		Requests:          "cpu=200m,memory=512Mi",
		ContainerSelector: "*",
		IOStreams:         streams,
	}

	err := opts.Complete(tf, cmd, []string{})
	if err == nil {
		err = opts.Validate()
	}
	if err == nil {
		err = opts.Run()
	}
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !strings.Contains(buf.String(), "replicationcontroller/cassandra") {
		t.Errorf("did not set resources: %s", buf.String())
	}
}

func TestSetMultiResourcesLimitsLocal(t *testing.T) {
	tf := cmdtesting.NewTestFactory().WithNamespace("test")
	defer tf.Cleanup()

	tf.Client = &fake.RESTClient{
		GroupVersion:         schema.GroupVersion{Version: ""},
		NegotiatedSerializer: scheme.Codecs.WithoutConversion(),
		Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
			t.Fatalf("unexpected request: %s %#v\n%#v", req.Method, req.URL, req)
			return nil, nil
		}),
	}
	tf.ClientConfigVal = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Version: ""}}}

	outputFormat := "name"

	streams, _, buf, _ := genericclioptions.NewTestIOStreams()
	cmd := NewCmdResources(tf, streams)
	cmd.SetOut(buf)
	cmd.SetErr(buf)
	cmd.Flags().Set("output", outputFormat)
	cmd.Flags().Set("local", "true")

	opts := SetResourcesOptions{
		PrintFlags: genericclioptions.NewPrintFlags("").WithDefaultOutput(outputFormat).WithTypeSetter(scheme.Scheme),
		FilenameOptions: resource.FilenameOptions{
			Filenames: []string{"../../../testdata/set/multi-resource-yaml.yaml"}},
		Local:             true,
		Limits:            "cpu=200m,memory=512Mi",
		Requests:          "cpu=200m,memory=512Mi",
		ContainerSelector: "*",
		IOStreams:         streams,
	}

	err := opts.Complete(tf, cmd, []string{})
	if err == nil {
		err = opts.Validate()
	}
	if err == nil {
		err = opts.Run()
	}
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	expectedOut := "replicationcontroller/first-rc\nreplicationcontroller/second-rc\n"
	if buf.String() != expectedOut {
		t.Errorf("expected out:\n%s\nbut got:\n%s", expectedOut, buf.String())
	}
}

func TestSetResourcesRemote(t *testing.T) {
	inputs := []struct {
		name         string
		object       runtime.Object
		groupVersion schema.GroupVersion
		path         string
		args         []string
	}{
		{
			name: "set image extensionsv1beta1 ReplicaSet",
			object: &extensionsv1beta1.ReplicaSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: extensionsv1beta1.ReplicaSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: extensionsv1beta1.SchemeGroupVersion,
			path:         "/namespaces/test/replicasets/nginx",
			args:         []string{"replicaset", "nginx"},
		},
		{
			name: "set image appsv1beta2 ReplicaSet",
			object: &appsv1beta2.ReplicaSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta2.ReplicaSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta2.SchemeGroupVersion,
			path:         "/namespaces/test/replicasets/nginx",
			args:         []string{"replicaset", "nginx"},
		},
		{
			name: "set image appsv1 ReplicaSet",
			object: &appsv1.ReplicaSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1.ReplicaSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1.SchemeGroupVersion,
			path:         "/namespaces/test/replicasets/nginx",
			args:         []string{"replicaset", "nginx"},
		},
		{
			name: "set image extensionsv1beta1 DaemonSet",
			object: &extensionsv1beta1.DaemonSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: extensionsv1beta1.DaemonSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: extensionsv1beta1.SchemeGroupVersion,
			path:         "/namespaces/test/daemonsets/nginx",
			args:         []string{"daemonset", "nginx"},
		},
		{
			name: "set image appsv1beta2 DaemonSet",
			object: &appsv1beta2.DaemonSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta2.DaemonSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta2.SchemeGroupVersion,
			path:         "/namespaces/test/daemonsets/nginx",
			args:         []string{"daemonset", "nginx"},
		},
		{
			name: "set image appsv1 DaemonSet",
			object: &appsv1.DaemonSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1.DaemonSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1.SchemeGroupVersion,
			path:         "/namespaces/test/daemonsets/nginx",
			args:         []string{"daemonset", "nginx"},
		},
		{
			name: "set image extensionsv1beta1 Deployment",
			object: &extensionsv1beta1.Deployment{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: extensionsv1beta1.DeploymentSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: extensionsv1beta1.SchemeGroupVersion,
			path:         "/namespaces/test/deployments/nginx",
			args:         []string{"deployment", "nginx"},
		},
		{
			name: "set image appsv1beta1 Deployment",
			object: &appsv1beta1.Deployment{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta1.DeploymentSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta1.SchemeGroupVersion,
			path:         "/namespaces/test/deployments/nginx",
			args:         []string{"deployment", "nginx"},
		},
		{
			name: "set image appsv1beta2 Deployment",
			object: &appsv1beta2.Deployment{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta2.DeploymentSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta2.SchemeGroupVersion,
			path:         "/namespaces/test/deployments/nginx",
			args:         []string{"deployment", "nginx"},
		},
		{
			name: "set image appsv1 Deployment",
			object: &appsv1.Deployment{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1.DeploymentSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1.SchemeGroupVersion,
			path:         "/namespaces/test/deployments/nginx",
			args:         []string{"deployment", "nginx"},
		},
		{
			name: "set image appsv1beta1 StatefulSet",
			object: &appsv1beta1.StatefulSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta1.StatefulSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta1.SchemeGroupVersion,
			path:         "/namespaces/test/statefulsets/nginx",
			args:         []string{"statefulset", "nginx"},
		},
		{
			name: "set image appsv1beta2 StatefulSet",
			object: &appsv1beta2.StatefulSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1beta2.StatefulSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1beta2.SchemeGroupVersion,
			path:         "/namespaces/test/statefulsets/nginx",
			args:         []string{"statefulset", "nginx"},
		},
		{
			name: "set image appsv1 StatefulSet",
			object: &appsv1.StatefulSet{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: appsv1.StatefulSetSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: appsv1.SchemeGroupVersion,
			path:         "/namespaces/test/statefulsets/nginx",
			args:         []string{"statefulset", "nginx"},
		},
		{
			name: "set image batchv1 Job",
			object: &batchv1.Job{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: batchv1.JobSpec{
					Template: corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: batchv1.SchemeGroupVersion,
			path:         "/namespaces/test/jobs/nginx",
			args:         []string{"job", "nginx"},
		},
		{
			name: "set image corev1.ReplicationController",
			object: &corev1.ReplicationController{
				ObjectMeta: metav1.ObjectMeta{Name: "nginx"},
				Spec: corev1.ReplicationControllerSpec{
					Template: &corev1.PodTemplateSpec{
						Spec: corev1.PodSpec{
							Containers: []corev1.Container{
								{
									Name:  "nginx",
									Image: "nginx",
								},
							},
						},
					},
				},
			},
			groupVersion: corev1.SchemeGroupVersion,
			path:         "/namespaces/test/replicationcontrollers/nginx",
			args:         []string{"replicationcontroller", "nginx"},
		},
	}

	for i, input := range inputs {
		t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
			tf := cmdtesting.NewTestFactory().WithNamespace("test")
			defer tf.Cleanup()

			tf.Client = &fake.RESTClient{
				GroupVersion:         input.groupVersion,
				NegotiatedSerializer: scheme.Codecs.WithoutConversion(),
				Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
					switch p, m := req.URL.Path, req.Method; {
					case p == input.path && m == http.MethodGet:
						return &http.Response{StatusCode: http.StatusOK, Header: cmdtesting.DefaultHeader(), Body: objBody(input.object)}, nil
					case p == input.path && m == http.MethodPatch:
						stream, err := req.GetBody()
						if err != nil {
							return nil, err
						}
						bytes, err := ioutil.ReadAll(stream)
						if err != nil {
							return nil, err
						}
						assert.Contains(t, string(bytes), "200m", fmt.Sprintf("resources not updated for %#v", input.object))
						return &http.Response{StatusCode: http.StatusOK, Header: cmdtesting.DefaultHeader(), Body: objBody(input.object)}, nil
					default:
						t.Errorf("%s: unexpected request: %s %#v\n%#v", "resources", req.Method, req.URL, req)
						return nil, fmt.Errorf("unexpected request")
					}
				}),
			}

			outputFormat := "yaml"

			streams := genericclioptions.NewTestIOStreamsDiscard()
			cmd := NewCmdResources(tf, streams)
			cmd.Flags().Set("output", outputFormat)
			opts := SetResourcesOptions{
				PrintFlags: genericclioptions.NewPrintFlags("").WithDefaultOutput(outputFormat).WithTypeSetter(scheme.Scheme),

				Limits:            "cpu=200m,memory=512Mi",
				ContainerSelector: "*",
				IOStreams:         streams,
			}
			err := opts.Complete(tf, cmd, input.args)
			if err == nil {
				err = opts.Validate()
			}
			if err == nil {
				err = opts.Run()
			}
			assert.NoError(t, err)
		})
	}
}

func TestSetResourcesRemoteWithSpecificContainers(t *testing.T) {
	inputs := []struct {
		name     string
		selector string
		args     []string

		expectedContainers int
	}{
		{
			name:               "all containers",
			args:               []string{"deployments", "redis"},
			selector:           "*",
			expectedContainers: 2,
		},
		{
			name:               "use wildcards to select some containers",
			args:               []string{"deployments", "redis"},
			selector:           "red*",
			expectedContainers: 1,
		},
		{
			name:               "single container",
			args:               []string{"deployments", "redis"},
			selector:           "redis",
			expectedContainers: 1,
		},
	}

	for _, input := range inputs {
		mockDeployment := &appsv1.Deployment{
			ObjectMeta: metav1.ObjectMeta{
				Name:      "redis",
				Namespace: "test",
			},
			Spec: appsv1.DeploymentSpec{
				Template: corev1.PodTemplateSpec{
					Spec: corev1.PodSpec{
						InitContainers: []corev1.Container{
							{
								Name:  "init",
								Image: "redis",
							},
						},
						Containers: []corev1.Container{
							{
								Name:  "redis",
								Image: "redis",
							},
						},
					},
				},
			},
		}
		t.Run(input.name, func(t *testing.T) {
			tf := cmdtesting.NewTestFactory().WithNamespace("test")
			defer tf.Cleanup()
			tf.ClientConfigVal = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Version: ""}}}
			tf.Client = &fake.RESTClient{
				GroupVersion:         schema.GroupVersion{Group: "", Version: "v1"},
				NegotiatedSerializer: scheme.Codecs.WithoutConversion(),
				Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
					switch p, m := req.URL.Path, req.Method; {
					case p == "/namespaces/test/deployments/redis" && m == http.MethodGet:
						return &http.Response{StatusCode: http.StatusOK, Header: cmdtesting.DefaultHeader(), Body: objBody(mockDeployment)}, nil
					case p == "/namespaces/test/deployments/redis" && m == http.MethodPatch:
						stream, err := req.GetBody()
						if err != nil {
							return nil, err
						}
						bytes, err := ioutil.ReadAll(stream)
						if err != nil {
							return nil, err
						}
						updated := strings.Count(string(bytes), "200m")
						if updated != input.expectedContainers {
							t.Errorf("expected %d containers to be selected but got %d \n", input.expectedContainers, updated)
						}
						return &http.Response{StatusCode: http.StatusOK, Header: cmdtesting.DefaultHeader(), Body: objBody(mockDeployment)}, nil
					default:
						t.Errorf("%s: unexpected request: %#v\n%#v", input.name, req.URL, req)
						return nil, nil
					}
				}),
			}

			outputFormat := "yaml"

			streams := genericclioptions.NewTestIOStreamsDiscard()
			cmd := NewCmdResources(tf, streams)
			cmd.Flags().Set("output", outputFormat)
			opts := SetResourcesOptions{
				PrintFlags: genericclioptions.NewPrintFlags("").WithDefaultOutput(outputFormat).WithTypeSetter(scheme.Scheme),

				Limits:            "cpu=200m,memory=512Mi",
				ContainerSelector: input.selector,
				IOStreams:         streams,
			}
			err := opts.Complete(tf, cmd, input.args)
			if err == nil {
				err = opts.Validate()
			}
			if err == nil {
				err = opts.Run()
			}
			assert.NoError(t, err)
		})
	}
}

相关信息

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kubernetes set_resources 源码

kubernetes set_selector 源码

kubernetes set_selector_test 源码

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