88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
|
/*
|
||
|
|
Copyright 2015 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
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"k8s.io/kubernetes/pkg/api/v1"
|
||
|
|
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
|
||
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
||
|
|
|
||
|
|
. "github.com/onsi/ginkgo"
|
||
|
|
)
|
||
|
|
|
||
|
|
var _ = framework.KubeDescribe("Cadvisor", func() {
|
||
|
|
|
||
|
|
f := framework.NewDefaultFramework("cadvisor")
|
||
|
|
|
||
|
|
It("should be healthy on every node.", func() {
|
||
|
|
CheckCadvisorHealthOnAllNodes(f.ClientSet, 5*time.Minute)
|
||
|
|
})
|
||
|
|
})
|
||
|
|
|
||
|
|
func CheckCadvisorHealthOnAllNodes(c clientset.Interface, timeout time.Duration) {
|
||
|
|
// It should be OK to list unschedulable Nodes here.
|
||
|
|
By("getting list of nodes")
|
||
|
|
nodeList, err := c.Core().Nodes().List(v1.ListOptions{})
|
||
|
|
framework.ExpectNoError(err)
|
||
|
|
var errors []error
|
||
|
|
|
||
|
|
// returns maxRetries, sleepDuration
|
||
|
|
readConfig := func() (int, time.Duration) {
|
||
|
|
// Read in configuration settings, reasonable defaults.
|
||
|
|
retry := framework.TestContext.Cadvisor.MaxRetries
|
||
|
|
if framework.TestContext.Cadvisor.MaxRetries == 0 {
|
||
|
|
retry = 6
|
||
|
|
framework.Logf("Overriding default retry value of zero to %d", retry)
|
||
|
|
}
|
||
|
|
|
||
|
|
sleepDurationMS := framework.TestContext.Cadvisor.SleepDurationMS
|
||
|
|
if sleepDurationMS == 0 {
|
||
|
|
sleepDurationMS = 10000
|
||
|
|
framework.Logf("Overriding default milliseconds value of zero to %d", sleepDurationMS)
|
||
|
|
}
|
||
|
|
|
||
|
|
return retry, time.Duration(sleepDurationMS) * time.Millisecond
|
||
|
|
}
|
||
|
|
|
||
|
|
maxRetries, sleepDuration := readConfig()
|
||
|
|
for {
|
||
|
|
errors = []error{}
|
||
|
|
for _, node := range nodeList.Items {
|
||
|
|
// cadvisor is not accessible directly unless its port (4194 by default) is exposed.
|
||
|
|
// Here, we access '/stats/' REST endpoint on the kubelet which polls cadvisor internally.
|
||
|
|
statsResource := fmt.Sprintf("api/v1/proxy/nodes/%s/stats/", node.Name)
|
||
|
|
By(fmt.Sprintf("Querying stats from node %s using url %s", node.Name, statsResource))
|
||
|
|
_, err = c.Core().RESTClient().Get().AbsPath(statsResource).Timeout(timeout).Do().Raw()
|
||
|
|
if err != nil {
|
||
|
|
errors = append(errors, err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if len(errors) == 0 {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
if maxRetries--; maxRetries <= 0 {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
framework.Logf("failed to retrieve kubelet stats -\n %v", errors)
|
||
|
|
time.Sleep(sleepDuration)
|
||
|
|
}
|
||
|
|
framework.Failf("Failed after retrying %d times for cadvisor to be healthy on all nodes. Errors:\n%v", maxRetries, errors)
|
||
|
|
}
|