/* Copyright 2016 The Kubernetes Authors All rights reserved. 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 kube import ( "bytes" "io" "io/ioutil" "net/http" "strings" "testing" "k8s.io/kubernetes/pkg/api" "k8s.io/kubernetes/pkg/api/testapi" "k8s.io/kubernetes/pkg/api/unversioned" "k8s.io/kubernetes/pkg/api/validation" "k8s.io/kubernetes/pkg/client/restclient/fake" cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing" "k8s.io/kubernetes/pkg/kubectl/resource" "k8s.io/kubernetes/pkg/runtime" ) func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser { return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj)))) } func newPod(name string) api.Pod { return api.Pod{ ObjectMeta: api.ObjectMeta{Name: name}, Spec: api.PodSpec{ Containers: []api.Container{{ Name: "app:v4", Image: "abc/app:v4", Ports: []api.ContainerPort{{Name: "http", ContainerPort: 80}}, }}, }, } } func newPodList(names ...string) api.PodList { var list api.PodList for _, name := range names { list.Items = append(list.Items, newPod(name)) } return list } func notFoundBody() *unversioned.Status { return &unversioned.Status{ Code: http.StatusNotFound, Status: unversioned.StatusFailure, Reason: unversioned.StatusReasonNotFound, Message: " \"\" not found", Details: &unversioned.StatusDetails{}, } } func newResponse(code int, obj runtime.Object) (*http.Response, error) { header := http.Header{} header.Set("Content-Type", runtime.ContentTypeJSON) body := ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), obj)))) return &http.Response{StatusCode: code, Header: header, Body: body}, nil } func TestUpdate(t *testing.T) { listA := newPodList("starfish", "otter", "squid") listB := newPodList("starfish", "otter", "dolphin") listB.Items[0].Spec.Containers[0].Ports = []api.ContainerPort{{Name: "https", ContainerPort: 443}} actions := make(map[string]string) f, tf, codec, ns := cmdtesting.NewAPIFactory() tf.Client = &fake.RESTClient{ NegotiatedSerializer: ns, Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) { p, m := req.URL.Path, req.Method actions[p] = m switch { case p == "/namespaces/test/pods/starfish" && m == "GET": return newResponse(200, &listA.Items[0]) case p == "/namespaces/test/pods/otter" && m == "GET": return newResponse(200, &listA.Items[1]) case p == "/namespaces/test/pods/dolphin" && m == "GET": return newResponse(404, notFoundBody()) case p == "/namespaces/test/pods/starfish" && m == "PATCH": data, err := ioutil.ReadAll(req.Body) if err != nil { t.Fatalf("could not dump request: %s", err) } req.Body.Close() expected := `{"spec":{"containers":[{"name":"app:v4","ports":[{"containerPort":443,"name":"https","protocol":"TCP"},{"$patch":"delete","containerPort":80}]}]}}` if string(data) != expected { t.Errorf("expected patch %s, got %s", expected, string(data)) } return newResponse(200, &listB.Items[0]) case p == "/namespaces/test/pods" && m == "POST": return newResponse(200, &listB.Items[1]) case p == "/namespaces/test/pods/squid" && m == "DELETE": return newResponse(200, &listB.Items[1]) default: t.Fatalf("unexpected request: %#v\n%#v", req.URL, req) return nil, nil } }), } c := &Client{Factory: f} if err := c.Update("test", objBody(codec, &listA), objBody(codec, &listB)); err != nil { t.Fatal(err) } expectedActions := map[string]string{ "/namespaces/test/pods/dolphin": "GET", "/namespaces/test/pods/otter": "GET", "/namespaces/test/pods/starfish": "PATCH", "/namespaces/test/pods": "POST", "/namespaces/test/pods/squid": "DELETE", } for k, v := range expectedActions { if m, ok := actions[k]; !ok || m != v { t.Errorf("expected a %s request to %s", k, v) } } } func TestPerform(t *testing.T) { tests := []struct { name string namespace string reader io.Reader count int swaggerFile string err bool errMessage string }{ { name: "Valid input", namespace: "test", reader: strings.NewReader(guestbookManifest), count: 6, }, { name: "Empty manifests", namespace: "test", reader: strings.NewReader(""), err: true, errMessage: "no objects visited", }, { name: "Invalid schema", namespace: "test", reader: strings.NewReader(testInvalidServiceManifest), swaggerFile: "../../vendor/k8s.io/kubernetes/api/swagger-spec/" + testapi.Default.GroupVersion().Version + ".json", err: true, errMessage: `error validating "": error validating data: expected type int, for field spec.ports[0].port, got string`, }, } for _, tt := range tests { results := []*resource.Info{} fn := func(info *resource.Info) error { results = append(results, info) if info.Namespace != tt.namespace { t.Errorf("%q. expected namespace to be '%s', got %s", tt.name, tt.namespace, info.Namespace) } return nil } f, tf, _, _ := cmdtesting.NewAPIFactory() c := &Client{Factory: f} if tt.swaggerFile != "" { data, err := ioutil.ReadFile(tt.swaggerFile) if err != nil { t.Fatalf("could not read swagger spec: %s", err) } validator, err := validation.NewSwaggerSchemaFromBytes(data, nil) if err != nil { t.Fatalf("could not load swagger spec: %s", err) } tf.Validator = validator } err := perform(c, tt.namespace, tt.reader, fn) if (err != nil) != tt.err { t.Errorf("%q. expected error: %v, got %v", tt.name, tt.err, err) } if err != nil && err.Error() != tt.errMessage { t.Errorf("%q. expected error message: %v, got %v", tt.name, tt.errMessage, err) } if len(results) != tt.count { t.Errorf("%q. expected %d result objects, got %d", tt.name, tt.count, len(results)) } } } func TestReal(t *testing.T) { t.Skip("This is a live test, comment this line to run") c := New(nil) if err := c.Create("test", strings.NewReader(guestbookManifest)); err != nil { t.Fatal(err) } testSvcEndpointManifest := testServiceManifest + "\n---\n" + testEndpointManifest c = New(nil) if err := c.Create("test-delete", strings.NewReader(testSvcEndpointManifest)); err != nil { t.Fatal(err) } if err := c.Delete("test-delete", strings.NewReader(testEndpointManifest)); err != nil { t.Fatal(err) } // ensures that delete does not fail if a resource is not found if err := c.Delete("test-delete", strings.NewReader(testSvcEndpointManifest)); err != nil { t.Fatal(err) } } const testServiceManifest = ` kind: Service apiVersion: v1 metadata: name: my-service spec: selector: app: myapp ports: - port: 80 protocol: TCP targetPort: 9376 ` const testInvalidServiceManifest = ` kind: Service apiVersion: v1 spec: ports: - port: "80" ` const testEndpointManifest = ` kind: Endpoints apiVersion: v1 metadata: name: my-service subsets: - addresses: - ip: "1.2.3.4" ports: - port: 9376 ` const guestbookManifest = ` apiVersion: v1 kind: Service metadata: name: redis-master labels: app: redis tier: backend role: master spec: ports: - port: 6379 targetPort: 6379 selector: app: redis tier: backend role: master --- apiVersion: extensions/v1beta1 kind: Deployment metadata: name: redis-master spec: replicas: 1 template: metadata: labels: app: redis role: master tier: backend spec: containers: - name: master image: gcr.io/google_containers/redis:e2e # or just image: redis resources: requests: cpu: 100m memory: 100Mi ports: - containerPort: 6379 --- apiVersion: v1 kind: Service metadata: name: redis-slave labels: app: redis tier: backend role: slave spec: ports: # the port that this service should serve on - port: 6379 selector: app: redis tier: backend role: slave --- apiVersion: extensions/v1beta1 kind: Deployment metadata: name: redis-slave spec: replicas: 2 template: metadata: labels: app: redis role: slave tier: backend spec: containers: - name: slave image: gcr.io/google_samples/gb-redisslave:v1 resources: requests: cpu: 100m memory: 100Mi env: - name: GET_HOSTS_FROM value: dns ports: - containerPort: 6379 --- apiVersion: v1 kind: Service metadata: name: frontend labels: app: guestbook tier: frontend spec: ports: - port: 80 selector: app: guestbook tier: frontend --- apiVersion: extensions/v1beta1 kind: Deployment metadata: name: frontend spec: replicas: 3 template: metadata: labels: app: guestbook tier: frontend spec: containers: - name: php-redis image: gcr.io/google-samples/gb-frontend:v4 resources: requests: cpu: 100m memory: 100Mi env: - name: GET_HOSTS_FROM value: dns ports: - containerPort: 80 `