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Merge pull request #117011 from fabi200123/Add-Node-Log-Query-Tests-
Add e2e tests for feature NodeLogQuery
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
2d9c951abe
@ -17,8 +17,11 @@ limitations under the License.
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package node
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"os/exec"
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"path/filepath"
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"strings"
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"time"
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@ -450,4 +453,232 @@ var _ = SIGDescribe("kubelet", func() {
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}
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})
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})
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// Tests for NodeLogQuery feature
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ginkgo.Describe("kubectl get --raw \"/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=/<insert-log-file-name-here> [Feature:NodeLogQuery]", func() {
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var (
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numNodes int
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nodeNames sets.String
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)
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ginkgo.BeforeEach(func(ctx context.Context) {
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nodes, err := e2enode.GetBoundedReadySchedulableNodes(ctx, c, maxNodesToCheck)
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numNodes = len(nodes.Items)
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framework.ExpectNoError(err)
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nodeNames = sets.NewString()
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for i := 0; i < numNodes; i++ {
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nodeNames.Insert(nodes.Items[i].Name)
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?"
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returns an error or not!
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*/
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ginkgo.It("should return the error of running without --query option", func() {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?"
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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_, _, err := framework.StartCmdAndStreamOutput(cmd)
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if err != nil {
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framework.Failf("Failed to start kubectl command! Error: %v", err)
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}
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err = cmd.Wait()
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if err == nil {
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framework.Failf("Command kubectl get --raw" + queryCommand + " was expected to return an error!")
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}
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet"
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returns the kubelet logs or not!
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*/
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ginkgo.It("should return the logs ", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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assertContains("kubelet", result)
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&pattern=container"
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returns something or not!
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*/
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ginkgo.It("should return the logs filtered by pattern container", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&pattern=container\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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assertContains("container", result)
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&boot=0"
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returns something or not!
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*/
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ginkgo.It("should return the kubelet logs for the current boot", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&boot=0\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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assertContains("kubelet", result)
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&boot=-1"
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returns something or not!
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*/
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ginkgo.It("should return the kubelet logs for the previous boot", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&boot=-1\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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assertContains("kubelet", result)
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&tailLines=2"
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returns something or not!
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*/
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ginkgo.It("should return the kubelet logs for the previous boot", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&tailLines=3\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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logs := journalctlCommand("-u", "kubelet", "-n 3 --utc")
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if result != logs {
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framework.Failf("Failed to receive the correct kubelet logs or the correct amount of lines of logs")
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}
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&tailLines=2&pattern=kubelet&boot=0"
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returns something or not!
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*/
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ginkgo.It("should return the kubelet logs for the current boot with pattern error and output in 2 lines", func(ctx context.Context) {
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ginkgo.By("Starting the command")
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&tailLines=3&boot=0&pattern=kubelet\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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logs := journalctlCommand("-u", "kubelet", "-n 3 --utc")
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if result != logs {
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framework.Failf("Failed to receive the correct kubelet logs")
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}
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&tailLines=3&untilTime=<now>"
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returns the kubelet logs or not!
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*/
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ginkgo.It("should return the logs for the requested query until the current date and time", func() {
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ginkgo.By("Starting the command")
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start := time.Now().UTC()
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&tailLines=3&sinceTime=" + start.Format(time.RFC3339) + "\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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logs := journalctlCommand("-u", "kubelet", "-n 3 --utc")
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if result != logs {
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framework.Failf("Failed to receive the correct kubelet logs or the correct amount of lines of logs")
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}
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}
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})
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/*
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Test if kubectl get --raw "/api/v1/nodes/<insert-node-name-here>/proxy/logs/?query=kubelet&tailLines=3&sinceTime=4 hours ago"
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returns the kubelet logs or not!
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*/
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ginkgo.It("should return the logs for the requested query since the current date and time", func() {
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ginkgo.By("Starting the command")
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start := time.Now().UTC()
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start = start.Add(time.Duration(-4) * time.Hour)
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tk := e2ekubectl.NewTestKubeconfig(framework.TestContext.CertDir, framework.TestContext.Host, framework.TestContext.KubeConfig, framework.TestContext.KubeContext, framework.TestContext.KubectlPath, ns)
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for nodeName := range nodeNames {
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queryCommand := "\"/api/v1/nodes/" + nodeName + "/proxy/logs/?query=kubelet&tailLines=3&sinceTime=" + start.Format(time.RFC3339) + "\""
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cmd := tk.KubectlCmd("get", "--raw", queryCommand)
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result := runKubectlCommand(cmd)
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logs := journalctlCommand("-u", "kubelet", "--utc")
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assertContains(result, logs)
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}
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})
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})
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})
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func runKubectlCommand(cmd *exec.Cmd) (result string) {
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stdout, stderr, err := framework.StartCmdAndStreamOutput(cmd)
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var buf bytes.Buffer
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if err != nil {
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framework.Failf("Failed to start kubectl command! Stderr: %v, error: %v", stderr, err)
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}
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defer stdout.Close()
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defer stderr.Close()
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defer framework.TryKill(cmd)
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b_read, err := io.Copy(&buf, stdout)
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if err != nil {
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framework.Failf("Expected output from kubectl alpha node-logs %s: %v\n Stderr: %v", cmd.Args, err, stderr)
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}
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out := ""
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if b_read >= 0 {
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out = buf.String()
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}
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framework.Logf("Kubectl output: %s", out)
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return out
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}
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func assertContains(expectedString string, result string) {
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if strings.Contains(result, expectedString) {
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return
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}
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framework.Failf("Failed to find \"%s\"", expectedString)
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return
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}
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func journalctlCommand(arg ...string) string {
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command := exec.Command("journalctl", arg...)
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out, err := command.Output()
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if err != nil {
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framework.Logf("Command: %v\nError: %v", command, err)
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framework.Failf("Error at running journalctl command")
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}
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framework.Logf("Journalctl output: %s", out)
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return string(out)
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}
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