var _ = framework.KubeDescribe("MetricsGrabber", func() {
f := framework.NewDefaultFramework("metrics-grabber")
var c clientset.Interface
var grabber *metrics.MetricsGrabber
BeforeEach(func() {
var err error
c = f.ClientSet
framework.ExpectNoError(err)
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")
var _ = framework.KubeDescribe("MetricsGrabber", func() {
f := framework.NewDefaultFramework("metrics-grabber")
var c *client.Client
var grabber *metrics.MetricsGrabber
BeforeEach(func() {
var err error
c = f.Client
framework.ExpectNoError(err)
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")
unknownMetrics := sets.NewString()
response, err := grabber.GrabFromApiServer(unknownMetrics)
framework.ExpectNoError(err)
Expect(unknownMetrics).To(BeEmpty())
checkMetrics(metrics.Metrics(response), metrics.KnownApiServerMetrics)
})
It("should grab all metrics from a Kubelet.", func() {
By("Proxying to Node through the API server")
nodes := framework.ListSchedulableNodesOrDie(c)
Expect(nodes.Items).NotTo(BeEmpty())
response, err := grabber.GrabFromKubelet(nodes.Items[0].Name)
framework.ExpectNoError(err)
checkNecessaryMetrics(metrics.Metrics(response), metrics.NecessaryKubeletMetrics)
})