mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-04 07:49:35 +00:00
108 lines
3.6 KiB
Go
108 lines
3.6 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
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"
|
|
|
|
"k8s.io/api/core/v1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/kubernetes/pkg/features"
|
|
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
|
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
|
|
kubelogs "k8s.io/kubernetes/pkg/kubelet/logs"
|
|
kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
|
|
. "github.com/onsi/ginkgo"
|
|
. "github.com/onsi/gomega"
|
|
)
|
|
|
|
const (
|
|
testContainerLogMaxFiles = 3
|
|
testContainerLogMaxSize = "40Ki"
|
|
rotationPollInterval = 5 * time.Second
|
|
rotationEventuallyTimeout = 3 * time.Minute
|
|
rotationConsistentlyTimeout = 2 * time.Minute
|
|
)
|
|
|
|
var _ = framework.KubeDescribe("ContainerLogRotation [Slow] [Serial] [Disruptive]", func() {
|
|
f := framework.NewDefaultFramework("container-log-rotation-test")
|
|
Context("when a container generates a lot of log", func() {
|
|
BeforeEach(func() {
|
|
if framework.TestContext.ContainerRuntime != kubetypes.RemoteContainerRuntime {
|
|
framework.Skipf("Skipping ContainerLogRotation test since the container runtime is not remote")
|
|
}
|
|
})
|
|
|
|
tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
initialConfig.FeatureGates[string(features.CRIContainerLogRotation)] = true
|
|
initialConfig.ContainerLogMaxFiles = testContainerLogMaxFiles
|
|
initialConfig.ContainerLogMaxSize = testContainerLogMaxSize
|
|
})
|
|
|
|
It("should be rotated and limited to a fixed amount of files", func() {
|
|
By("create log container")
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "test-container-log-rotation",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: "log-container",
|
|
Image: busyboxImage,
|
|
Command: []string{
|
|
"sh",
|
|
"-c",
|
|
// ~12Kb/s. Exceeding 40Kb in 4 seconds. Log rotation period is 10 seconds.
|
|
"while true; do echo hello world; sleep 0.001; done;",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
pod = f.PodClient().CreateSync(pod)
|
|
By("get container log path")
|
|
Expect(len(pod.Status.ContainerStatuses)).To(Equal(1))
|
|
id := kubecontainer.ParseContainerID(pod.Status.ContainerStatuses[0].ContainerID).ID
|
|
r, _, err := getCRIClient()
|
|
Expect(err).NotTo(HaveOccurred())
|
|
status, err := r.ContainerStatus(id)
|
|
Expect(err).NotTo(HaveOccurred())
|
|
logPath := status.GetLogPath()
|
|
By("wait for container log being rotated to max file limit")
|
|
Eventually(func() (int, error) {
|
|
logs, err := kubelogs.GetAllLogs(logPath)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return len(logs), nil
|
|
}, rotationEventuallyTimeout, rotationPollInterval).Should(Equal(testContainerLogMaxFiles), "should eventually rotate to max file limit")
|
|
By("make sure container log number won't exceed max file limit")
|
|
Consistently(func() (int, error) {
|
|
logs, err := kubelogs.GetAllLogs(logPath)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return len(logs), nil
|
|
}, rotationConsistentlyTimeout, rotationPollInterval).Should(BeNumerically("<=", testContainerLogMaxFiles), "should never exceed max file limit")
|
|
})
|
|
})
|
|
})
|