Golang PodStore.List方法代码示例

// waitForNPods tries to list pods using c until it finds expect of them,
// returning their names if it can do so before timeout.
func waitForNPods(ps *framework.PodStore, expect int, timeout time.Duration) ([]string, error) {
	// Loop until we find expect pods or timeout is passed.
	var pods []*api.Pod
	var errLast error
	found := wait.Poll(framework.Poll, timeout, func() (bool, error) {
		allPods := ps.List()
		pods := filterIrrelevantPods(allPods)
		if len(pods) != expect {
			errLast = fmt.Errorf("expected to find %d pods but found only %d", expect, len(pods))
			framework.Logf("Error getting pods: %v", errLast)
			return false, nil
		}
		return true, nil
	}) == nil
	// Extract the names of all found pods.
	podNames := make([]string, len(pods))
	for i, p := range pods {
		podNames[i] = p.ObjectMeta.Name
	}
	if !found {
		return podNames, fmt.Errorf("couldn't find %d pods within %v; last error: %v",
			expect, timeout, errLast)
	}
	return podNames, nil
}

	AfterEach(func() {
		if ps != nil {
			ps.Stop()
		}
	})

	It("should restart all nodes and ensure all nodes and pods recover", func() {
		nn := framework.TestContext.CloudConfig.NumNodes

		By("ensuring all nodes are ready")
		nodeNamesBefore, err := checkNodesReady(f.Client, framework.NodeReadyInitialTimeout, nn)
		Expect(err).NotTo(HaveOccurred())
		framework.Logf("Got the following nodes before restart: %v", nodeNamesBefore)

		By("ensuring all pods are running and ready")
		pods := ps.List()
		podNamesBefore := make([]string, len(pods))
		for i, p := range pods {
			podNamesBefore[i] = p.ObjectMeta.Name
		}
		ns := api.NamespaceSystem
		if !framework.CheckPodsRunningReady(f.Client, ns, podNamesBefore, framework.PodReadyBeforeTimeout) {
			framework.Failf("At least one pod wasn't running and ready at test start.")
		}

		By("restarting all of the nodes")
		err = restartNodes(framework.TestContext.Provider, restartPerNodeTimeout)
		Expect(err).NotTo(HaveOccurred())

		By("ensuring all nodes are ready after the restart")
		nodeNamesAfter, err := checkNodesReady(f.Client, restartNodeReadyAgainTimeout, nn)

	AfterEach(func() {
		if ps != nil {
			ps.Stop()
		}
	})

	It("should restart all nodes and ensure all nodes and pods recover", func() {
		nn := framework.TestContext.CloudConfig.NumNodes

		By("ensuring all nodes are ready")
		nodeNamesBefore, err := framework.CheckNodesReady(f.Client, framework.NodeReadyInitialTimeout, nn)
		Expect(err).NotTo(HaveOccurred())
		framework.Logf("Got the following nodes before restart: %v", nodeNamesBefore)

		By("ensuring all pods are running and ready")
		allPods := ps.List()
		pods := filterIrrelevantPods(allPods)

		podNamesBefore := make([]string, len(pods))
		for i, p := range pods {
			podNamesBefore[i] = p.ObjectMeta.Name
		}
		ns := api.NamespaceSystem
		if !framework.CheckPodsRunningReadyOrSucceeded(f.Client, ns, podNamesBefore, framework.PodReadyBeforeTimeout) {
			framework.Failf("At least one pod wasn't running and ready or succeeded at test start.")
		}

		By("restarting all of the nodes")
		err = restartNodes(f, nodeNamesBefore)
		Expect(err).NotTo(HaveOccurred())