Merge pull request #17683 from pwittrock/node_e2e_tests

hack/verify-flags/known-flags.txt

@@ -9,10 +9,10 @@ algorithm-provider
 all-namespaces
 allocate-node-cidrs
 allow-privileged
+api-server-address
 api-burst
 api-prefix
 api-rate
-api-server-host
 api-server-port
 api-servers
 api-token
@@ -142,12 +142,12 @@ km-path
 kube-api-burst
 kube-api-qps
 kubectl-path
+kubelet-address
 kubelet-cadvisor-port
 kubelet-certificate-authority
 kubelet-client-certificate
 kubelet-client-key
 kubelet-docker-endpoint
-kubelet-host
 kubelet-host-network-sources
 kubelet-https
 kubelet-network-plugin
@@ -211,6 +211,7 @@ node-monitor-grace-period
 node-monitor-period
 node-label
 node-labels-file
+node-name
 node-startup-grace-period
 node-status-update-frequency
 node-sync-period

test/e2e_node/e2e_node_suite_test.go

@@ -24,11 +24,9 @@ import (
 	"testing"
 )
 
-var kubeletHost = flag.String("kubelet-host", "localhost", "Host address of the kubelet")
-var kubeletPort = flag.Int("kubelet-port", 10250, "Kubelet port")
-
-var apiServerHost = flag.String("api-server-host", "localhost", "Host address of the api server")
-var apiServerPort = flag.Int("api-server-port", 8080, "Api server port")
+var kubeletAddress = flag.String("kubelet-address", "localhost:10250", "Host and port of the kubelet")
+var apiServerAddress = flag.String("api-server-address", "localhost:8080", "Host and port of the api server")
+var nodeName = flag.String("node-name", "", "Name of the node")
 
 func TestE2eNode(t *testing.T) {
 	flag.Parse()

test/e2e_node/gcloud/gcloud.go

@@ -74,13 +74,14 @@ func (gc *gCloudClientImpl) Command(cmd string, moreargs ...string) ([]byte, err
 	return exec.Command("gcloud", args...).CombinedOutput()
 }
 
-func (gc *gCloudClientImpl) TunnelCommand(sudo bool, lPort string, rPort string, cmd string, moreargs ...string) ([]byte, error) {
+func (gc *gCloudClientImpl) TunnelCommand(sudo bool, lPort string, rPort string, dir string, cmd string, moreargs ...string) ([]byte, error) {
 	tunnelStr := fmt.Sprintf("-L %s:localhost:%s", lPort, rPort)
 	args := []string{"compute", "ssh"}
 	if gc.zone != "" {
 		args = append(args, "--zone", gc.zone)
 	}
 	args = append(args, "--ssh-flag", tunnelStr, gc.host, "--")
+	args = append(args, "cd", dir, ";")
 	if sudo {
 		args = append(args, "sudo")
 	}
@@ -152,10 +153,10 @@ func (gc *gCloudClientImpl) CopyAndRun(
 	// Do the setup
 	go func() {
 		// Start the process
-		out, err = gc.TunnelCommand(sudo, h.LPort, remotePort, cmd, args...)
+		out, err = gc.TunnelCommand(sudo, h.LPort, remotePort, tDir, fmt.Sprintf("./%s", f), args...)
 		if err != nil {
 			glog.Errorf("command failed %v", err)
-			h.Output <- RunResult{out, err, fmt.Sprintf("%s %s", cmd, strings.Join(args, " "))}
+			h.Output <- RunResult{out, err, fmt.Sprintf("%s %s", f, strings.Join(args, " "))}
 			return
 		}
 	}()

test/e2e_node/kubelet_test.go

@@ -17,36 +17,65 @@ limitations under the License.
 package e2e_node
 
 import (
+	"bytes"
 	"fmt"
-	"io/ioutil"
-	"net/http"
+	"time"
 
-	"github.com/golang/glog"
 	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"k8s.io/kubernetes/pkg/api"
+	client "k8s.io/kubernetes/pkg/client/unversioned"
 )
 
 var _ = Describe("Kubelet", func() {
+	var cl *client.Client
 	BeforeEach(func() {
-		// Setup the client to talk to the kubelet
+		// Setup the apiserver client
+		cl = client.NewOrDie(&client.Config{Host: *apiServerAddress})
 	})
 
-	Describe("checking kubelet status", func() {
-		Context("when retrieving the node status", func() {
-			It("should have the container version", func() {
-
-				// TODO: This is just a place holder, write a real test here
-				resp, err := http.Get(fmt.Sprintf("http://%s:%d/api/v2.0/attributes", *kubeletHost, *kubeletPort))
-				if err != nil {
-					glog.Errorf("Error: %v", err)
-					return
-				}
-				defer resp.Body.Close()
-				body, err := ioutil.ReadAll(resp.Body)
-				if err != nil {
-					glog.Errorf("Error: %v", err)
-					return
+	Describe("pod scheduling", func() {
+		Context("when scheduling a busybox command in a pod", func() {
+			It("it should return succes", func() {
+				pod := &api.Pod{
+					ObjectMeta: api.ObjectMeta{
+						Name:      "busybox",
+						Namespace: api.NamespaceDefault,
+					},
+					Spec: api.PodSpec{
+						NodeName: *nodeName,
+						Containers: []api.Container{
+							{
+								Image:           "busybox",
+								Name:            "busybox",
+								Command:         []string{"echo", "'Hello World'"},
+								ImagePullPolicy: "IfNotPresent",
+							},
+						},
+					},
 				}
-				glog.Infof("Resp: %s", body)
+				_, err := cl.Pods(api.NamespaceDefault).Create(pod)
+				Expect(err).To(BeNil(), fmt.Sprintf("Error creating Pod %v", err))
+			})
+
+			It("it should print the output to logs", func() {
+				errs := Retry(time.Minute*3, time.Second*2, cl, func(cl *client.Client) error {
+					rc, err := cl.Pods(api.NamespaceDefault).GetLogs("busybox", &api.PodLogOptions{}).Stream()
+					if err != nil {
+						return err
+					}
+					defer rc.Close()
+					buf := new(bytes.Buffer)
+					buf.ReadFrom(rc)
+					Expect(buf.String()).To(Equal("'Hello World'\n"))
+					return nil
+				})
+				Expect(errs).To(BeEmpty(), fmt.Sprintf("Failed to get Logs"))
+			})
+
+			It("it should be possible to delete", func() {
+				err := cl.Pods(api.NamespaceDefault).Delete("busybox", &api.DeleteOptions{})
+				Expect(err).To(BeNil(), fmt.Sprintf("Error creating Pod %v", err))
 			})
 		})
 	})

test/e2e_node/runner/run_e2e.go

@@ -98,7 +98,7 @@ func main() {
 
 	// Wait for the tests to finish
 	w.Wait()
-	glog.Infof("All hosts finished")
+	glog.Infof("Done")
 }
 
 func WaitForUser() {
@@ -150,7 +150,8 @@ func runTests(host string) ([]byte, error) {
 	ginkoTests := filepath.Join(kubeRoot, ginkoTestRelPath)
 	return exec.Command(
 		"ginkgo", ginkoTests, "--",
-		"--kubelet-host", "localhost", "--kubelet-port", kh.LPort,
-		"--api-server-host", "localhost", "--api-server-port", kh.LPort,
+		"--kubelet-address", fmt.Sprintf("http://localhost:%s", kh.LPort),
+		"--api-server-address", fmt.Sprintf("http://localhost:%s", ah.LPort),
+		"--node-name", host,
 		"-logtostderr").CombinedOutput()
 }

test/e2e_node/util.go

+/*
+Copyright 2015 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 e2e_node
+
+import (
+	"time"
+
+	client "k8s.io/kubernetes/pkg/client/unversioned"
+)
+
+type RetryFn func(cl *client.Client) error
+
+func Retry(maxWait time.Duration, wait time.Duration, cl *client.Client, retry RetryFn) []error {
+	errs := []error{}
+	for start := time.Now(); time.Now().Before(start.Add(maxWait)); {
+		if err := retry(cl); err != nil {
+			errs = append(errs, err)
+		} else {
+			return []error{}
+		}
+	}
+	return errs
+}