mirror of https://github.com/k3s-io/k3s
108 lines
3.6 KiB
Go
108 lines
3.6 KiB
Go
/*
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Copyright 2018 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_node
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import (
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"time"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/features"
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kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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kubelogs "k8s.io/kubernetes/pkg/kubelet/logs"
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kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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const (
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testContainerLogMaxFiles = 3
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testContainerLogMaxSize = "40Ki"
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rotationPollInterval = 5 * time.Second
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rotationEventuallyTimeout = 3 * time.Minute
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rotationConsistentlyTimeout = 2 * time.Minute
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)
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var _ = framework.KubeDescribe("ContainerLogRotation [Slow] [Serial] [Disruptive]", func() {
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f := framework.NewDefaultFramework("container-log-rotation-test")
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Context("when a container generates a lot of log", func() {
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BeforeEach(func() {
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if framework.TestContext.ContainerRuntime != kubetypes.RemoteContainerRuntime {
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framework.Skipf("Skipping ContainerLogRotation test since the container runtime is not remote")
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}
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})
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tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
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initialConfig.FeatureGates[string(features.CRIContainerLogRotation)] = true
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initialConfig.ContainerLogMaxFiles = testContainerLogMaxFiles
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initialConfig.ContainerLogMaxSize = testContainerLogMaxSize
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})
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It("should be rotated and limited to a fixed amount of files", func() {
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By("create log container")
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test-container-log-rotation",
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},
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Spec: v1.PodSpec{
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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{
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Name: "log-container",
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Image: busyboxImage,
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Command: []string{
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"sh",
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"-c",
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// ~12Kb/s. Exceeding 40Kb in 4 seconds. Log rotation period is 10 seconds.
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"while true; do echo hello world; sleep 0.001; done;",
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},
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},
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},
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},
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}
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pod = f.PodClient().CreateSync(pod)
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By("get container log path")
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Expect(len(pod.Status.ContainerStatuses)).To(Equal(1))
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id := kubecontainer.ParseContainerID(pod.Status.ContainerStatuses[0].ContainerID).ID
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r, _, err := getCRIClient()
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Expect(err).NotTo(HaveOccurred())
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status, err := r.ContainerStatus(id)
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Expect(err).NotTo(HaveOccurred())
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logPath := status.GetLogPath()
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By("wait for container log being rotated to max file limit")
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Eventually(func() (int, error) {
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logs, err := kubelogs.GetAllLogs(logPath)
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if err != nil {
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return 0, err
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}
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return len(logs), nil
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}, rotationEventuallyTimeout, rotationPollInterval).Should(Equal(testContainerLogMaxFiles), "should eventually rotate to max file limit")
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By("make sure container log number won't exceed max file limit")
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Consistently(func() (int, error) {
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logs, err := kubelogs.GetAllLogs(logPath)
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if err != nil {
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return 0, err
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}
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return len(logs), nil
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}, rotationConsistentlyTimeout, rotationPollInterval).Should(BeNumerically("<=", testContainerLogMaxFiles), "should never exceed max file limit")
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})
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})
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})
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