grabber, err = metrics.NewMetricsGrabber(c, true, true, true, true)
framework.ExpectNoError(err)
})
It("should grab all metrics from API server.", func() {
By("Connecting to /metrics endpoint")
response, err := grabber.GrabFromApiServer()
framework.ExpectNoError(err)
Expect(response).NotTo(BeEmpty())
})
It("should grab all metrics from a Kubelet.", func() {
By("Proxying to Node through the API server")
nodes := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
Expect(nodes.Items).NotTo(BeEmpty())
response, err := grabber.GrabFromKubelet(nodes.Items[0].Name)
framework.ExpectNoError(err)
Expect(response).NotTo(BeEmpty())
})
It("should grab all metrics from a Scheduler.", func() {
By("Proxying to Pod through the API server")
// Check if master Node is registered
nodes, err := c.Core().Nodes().List(v1.ListOptions{})
framework.ExpectNoError(err)
var masterRegistered = false
for _, node := range nodes.Items {
if strings.HasSuffix(node.Name, "master") {
masterRegistered = true
}
unknownMetrics := sets.NewString()
response, err := grabber.GrabFromApiServer(unknownMetrics)
expectNoError(err)
Expect(unknownMetrics).To(BeEmpty())
checkMetrics(metrics.Metrics(response), metrics.KnownApiServerMetrics)
})
It("should grab all metrics from a Kubelet.", func() {
// We run this test only on GCE, as for some reason it flakes in GKE #19468
if providerIs("gce") {
By("Connecting proxying to Node through the API server")
nodes := ListSchedulableNodesOrDie(c)
Expect(nodes.Items).NotTo(BeEmpty())
unknownMetrics := sets.NewString()
response, err := grabber.GrabFromKubelet(nodes.Items[0].Name, unknownMetrics)
expectNoError(err)
Expect(unknownMetrics).To(BeEmpty())
checkMetrics(metrics.Metrics(response), metrics.KnownKubeletMetrics)
}
})
It("should grab all metrics from a Scheduler.", func() {
By("Connecting proxying to Pod through the API server")
// Check if master Node is registered
nodes, err := c.Nodes().List(api.ListOptions{})
expectNoError(err)
var masterRegistered = false
for _, node := range nodes.Items {