94 lines
3 KiB
Go
94 lines
3 KiB
Go
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/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package e2e
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import (
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"errors"
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"fmt"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/test/e2e/framework"
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)
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const (
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// ingestionTimeout is how long to keep retrying to wait for all the
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// logs to be ingested.
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ingestionTimeout = 10 * time.Minute
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// ingestionRetryDelay is how long test should wait between
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// two attempts to check for ingestion
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ingestionRetryDelay = 25 * time.Second
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synthLoggerPodName = "synthlogger"
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// expectedLinesCount is the number of log lines emitted (and checked) for each synthetic logging pod.
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expectedLinesCount = 100
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)
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func createSynthLogger(f *framework.Framework, linesCount int) {
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f.PodClient().Create(&v1.Pod{
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ObjectMeta: v1.ObjectMeta{
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Name: synthLoggerPodName,
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Namespace: f.Namespace.Name,
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},
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Spec: v1.PodSpec{
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RestartPolicy: v1.RestartPolicyOnFailure,
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Containers: []v1.Container{
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{
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Name: synthLoggerPodName,
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Image: "gcr.io/google_containers/busybox:1.24",
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// notice: the subshell syntax is escaped with `$$`
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Command: []string{"/bin/sh", "-c", fmt.Sprintf("i=0; while [ $i -lt %d ]; do echo $i; i=`expr $i + 1`; done", linesCount)},
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},
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},
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},
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})
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}
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func reportLogsFromFluentdPod(f *framework.Framework) error {
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synthLoggerPod, err := f.PodClient().Get(synthLoggerPodName, metav1.GetOptions{})
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if err != nil {
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return fmt.Errorf("Failed to get synth logger pod due to %v", err)
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}
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synthLoggerNodeName := synthLoggerPod.Spec.NodeName
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if synthLoggerNodeName == "" {
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return errors.New("Synthlogger pod is not assigned to the node")
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}
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label := labels.SelectorFromSet(labels.Set(map[string]string{"k8s-app": "fluentd-logging"}))
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options := v1.ListOptions{LabelSelector: label.String()}
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fluentdPods, err := f.ClientSet.Core().Pods(api.NamespaceSystem).List(options)
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for _, fluentdPod := range fluentdPods.Items {
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if fluentdPod.Spec.NodeName == synthLoggerNodeName {
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containerName := fluentdPod.Spec.Containers[0].Name
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logs, err := framework.GetPodLogs(f.ClientSet, api.NamespaceSystem, fluentdPod.Name, containerName)
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if err != nil {
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return fmt.Errorf("Failed to get logs from fluentd pod %s due to %v", fluentdPod.Name, err)
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}
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framework.Logf("Logs from fluentd pod %s:\n%s", fluentdPod.Name, logs)
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return nil
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}
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}
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return fmt.Errorf("Failed to find fluentd pod running on node %s", synthLoggerNodeName)
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}
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