mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-03 23:40:03 +00:00
215 lines
7.4 KiB
Go
215 lines
7.4 KiB
Go
/*
|
||
Copyright 2019 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/apimachinery/pkg/util/uuid"
|
||
"k8s.io/kubernetes/pkg/features"
|
||
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
||
"k8s.io/kubernetes/test/e2e/common"
|
||
"k8s.io/kubernetes/test/e2e/framework"
|
||
testutils "k8s.io/kubernetes/test/utils"
|
||
imageutils "k8s.io/kubernetes/test/utils/image"
|
||
|
||
"github.com/onsi/ginkgo"
|
||
"github.com/onsi/gomega"
|
||
)
|
||
|
||
const (
|
||
defaultObservationTimeout = time.Minute * 4
|
||
)
|
||
|
||
var _ = framework.KubeDescribe("StartupProbe [Serial] [Disruptive] [NodeAlphaFeature:StartupProbe]", func() {
|
||
f := framework.NewDefaultFramework("startup-probe-test")
|
||
var podClient *framework.PodClient
|
||
ginkgo.BeforeEach(func() {
|
||
podClient = f.PodClient()
|
||
})
|
||
|
||
/*
|
||
These tests are located here as they require tempSetCurrentKubeletConfig to enable the feature gate for startupProbe.
|
||
Once the feature gate has been removed, these tests should come back to test/e2e/common/container_probe.go.
|
||
*/
|
||
ginkgo.Context("when a container has a startup probe", func() {
|
||
tempSetCurrentKubeletConfig(f, func(initialConfig *kubeletconfig.KubeletConfiguration) {
|
||
if initialConfig.FeatureGates == nil {
|
||
initialConfig.FeatureGates = make(map[string]bool)
|
||
}
|
||
initialConfig.FeatureGates[string(features.StartupProbe)] = true
|
||
})
|
||
|
||
/*
|
||
Release : v1.16
|
||
Testname: Pod liveness probe, using local file, delayed by startup probe
|
||
Description: A Pod is created with liveness probe that uses ‘exec’ command to cat the non-existent /tmp/health file. Liveness probe MUST NOT fail until startup probe expires.
|
||
*/
|
||
framework.ConformanceIt("should *not* be restarted with a exec \"cat /tmp/health\" because startup probe delays it [NodeConformance]", func() {
|
||
cmd := []string{"/bin/sh", "-c", "sleep 600"}
|
||
livenessProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 1,
|
||
}
|
||
startupProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 60,
|
||
}
|
||
pod := startupPodSpec(startupProbe, nil, livenessProbe, cmd)
|
||
common.RunLivenessTest(f, pod, 0, defaultObservationTimeout)
|
||
})
|
||
|
||
/*
|
||
Release : v1.16
|
||
Testname: Pod liveness probe, using local file, delayed by startup probe
|
||
Description: A Pod is created with liveness probe that uses ‘exec’ command to cat the non-existent /tmp/health file. Liveness probe MUST fail after startup probe expires. The Pod MUST now be killed and restarted incrementing restart count to 1.
|
||
*/
|
||
framework.ConformanceIt("should be restarted with a exec \"cat /tmp/health\" because startup probe does not delay it long enough [NodeConformance]", func() {
|
||
cmd := []string{"/bin/sh", "-c", "sleep 600"}
|
||
livenessProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 1,
|
||
}
|
||
startupProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 3,
|
||
}
|
||
pod := startupPodSpec(startupProbe, nil, livenessProbe, cmd)
|
||
common.RunLivenessTest(f, pod, 1, defaultObservationTimeout)
|
||
})
|
||
|
||
/*
|
||
Release : v1.16
|
||
Testname: Pod liveness probe, using local file, startup finished restart
|
||
Description: A Pod is created with liveness probe that uses ‘exec’ command to cat /temp/health file. The Container is started by creating /tmp/startup after 10 seconds, triggering liveness probe to fail. The Pod MUST now be killed and restarted incrementing restart count to 1.
|
||
*/
|
||
framework.ConformanceIt("should be restarted with a exec \"cat /tmp/health\" after startup probe succeeds it [NodeConformance]", func() {
|
||
cmd := []string{"/bin/sh", "-c", "sleep 10; echo ok >/tmp/startup; sleep 600"}
|
||
livenessProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 1,
|
||
}
|
||
startupProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/startup"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 15,
|
||
FailureThreshold: 60,
|
||
}
|
||
pod := startupPodSpec(startupProbe, nil, livenessProbe, cmd)
|
||
common.RunLivenessTest(f, pod, 1, defaultObservationTimeout)
|
||
})
|
||
|
||
/*
|
||
Release : v1.16
|
||
Testname: Pod readiness probe, delayed by startup probe
|
||
Description: A Pod is created with startup and readiness probes. The Container is started by creating /tmp/startup after 45 seconds, delaying the ready state by this amount of time. This is similar to the "Pod readiness probe, with initial delay" test.
|
||
*/
|
||
framework.ConformanceIt("should not be ready until startupProbe succeeds [NodeConformance]", func() {
|
||
cmd := []string{"/bin/sh", "-c", "echo ok >/tmp/health; sleep 45; echo ok >/tmp/startup; sleep 600"}
|
||
readinessProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/health"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 0,
|
||
}
|
||
startupProbe := &v1.Probe{
|
||
Handler: v1.Handler{
|
||
Exec: &v1.ExecAction{
|
||
Command: []string{"cat", "/tmp/startup"},
|
||
},
|
||
},
|
||
InitialDelaySeconds: 0,
|
||
FailureThreshold: 60,
|
||
}
|
||
p := podClient.Create(startupPodSpec(startupProbe, readinessProbe, nil, cmd))
|
||
|
||
p, err := podClient.Get(p.Name, metav1.GetOptions{})
|
||
framework.ExpectNoError(err)
|
||
|
||
f.WaitForPodReady(p.Name)
|
||
isReady, err := testutils.PodRunningReady(p)
|
||
framework.ExpectNoError(err)
|
||
gomega.Expect(isReady).To(gomega.BeTrue(), "pod should be ready")
|
||
|
||
// We assume the pod became ready when the container became ready. This
|
||
// is true for a single container pod.
|
||
readyTime, err := common.GetTransitionTimeForReadyCondition(p)
|
||
framework.ExpectNoError(err)
|
||
startedTime, err := common.GetContainerStartedTime(p, "busybox")
|
||
framework.ExpectNoError(err)
|
||
|
||
framework.Logf("Container started at %v, pod became ready at %v", startedTime, readyTime)
|
||
if readyTime.Sub(startedTime) < 40*time.Second {
|
||
framework.Failf("Pod became ready before startupProbe succeeded")
|
||
}
|
||
})
|
||
})
|
||
})
|
||
|
||
func startupPodSpec(startupProbe, readinessProbe, livenessProbe *v1.Probe, cmd []string) *v1.Pod {
|
||
return &v1.Pod{
|
||
ObjectMeta: metav1.ObjectMeta{
|
||
Name: "startup-" + string(uuid.NewUUID()),
|
||
Labels: map[string]string{"test": "startup"},
|
||
},
|
||
Spec: v1.PodSpec{
|
||
Containers: []v1.Container{
|
||
{
|
||
Name: "busybox",
|
||
Image: imageutils.GetE2EImage(imageutils.BusyBox),
|
||
Command: cmd,
|
||
LivenessProbe: livenessProbe,
|
||
ReadinessProbe: readinessProbe,
|
||
StartupProbe: startupProbe,
|
||
},
|
||
},
|
||
},
|
||
}
|
||
}
|