func NewMetricsGrabber(c *client.Client, kubelets bool, scheduler bool, controllers bool, apiServer bool) (*MetricsGrabber, error) { registeredMaster := false masterName := "" nodeList, err := c.Nodes().List(api.ListOptions{}) if err != nil { return nil, err } if len(nodeList.Items) < 1 { glog.Warning("Can't find any Nodes in the API server to grab metrics from") } for _, node := range nodeList.Items { if system.IsMasterNode(&node) { registeredMaster = true masterName = node.Name break } } if !registeredMaster { scheduler = false controllers = false glog.Warningf("Master node is not registered. Grabbing metrics from Scheduler and ControllerManager is disabled.") } return &MetricsGrabber{ client: c, grabFromApiServer: apiServer, grabFromControllerManager: controllers, grabFromKubelets: kubelets, grabFromScheduler: scheduler, masterName: masterName, registeredMaster: registeredMaster, }, nil }
func dumpClusterInfo(f *cmdutil.Factory, cmd *cobra.Command, args []string, out io.Writer) error { var c *unversioned.Client var err error if c, err = f.Client(); err != nil { return err } printer, _, err := kubectl.GetPrinter("json", "") if err != nil { return err } nodes, err := c.Nodes().List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(nodes, setupOutputWriter(cmd, out, "nodes.json")); err != nil { return err } var namespaces []string if cmdutil.GetFlagBool(cmd, "all-namespaces") { namespaceList, err := c.Namespaces().List(api.ListOptions{}) if err != nil { return err } for ix := range namespaceList.Items { namespaces = append(namespaces, namespaceList.Items[ix].Name) } } else { namespaces = cmdutil.GetFlagStringSlice(cmd, "namespaces") if len(namespaces) == 0 { cmdNamespace, _, err := f.DefaultNamespace() if err != nil { return err } namespaces = []string{ api.NamespaceSystem, cmdNamespace, } } } for _, namespace := range namespaces { // TODO: this is repetitive in the extreme. Use reflection or // something to make this a for loop. events, err := c.Events(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(events, setupOutputWriter(cmd, out, path.Join(namespace, "events.json"))); err != nil { return err } rcs, err := c.ReplicationControllers(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(rcs, setupOutputWriter(cmd, out, path.Join(namespace, "replication-controllers.json"))); err != nil { return err } svcs, err := c.Services(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(svcs, setupOutputWriter(cmd, out, path.Join(namespace, "services.json"))); err != nil { return err } sets, err := c.DaemonSets(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(sets, setupOutputWriter(cmd, out, path.Join(namespace, "daemonsets.json"))); err != nil { return err } deps, err := c.Deployments(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(deps, setupOutputWriter(cmd, out, path.Join(namespace, "deployments.json"))); err != nil { return err } rps, err := c.ReplicaSets(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(rps, setupOutputWriter(cmd, out, path.Join(namespace, "replicasets.json"))); err != nil { return err } pods, err := c.Pods(namespace).List(api.ListOptions{}) if err != nil { return err } if err := printer.PrintObj(pods, setupOutputWriter(cmd, out, path.Join(namespace, "pods.json"))); err != nil { return err } for ix := range pods.Items { pod := &pods.Items[ix] writer := setupOutputWriter(cmd, out, path.Join(namespace, pod.Name, "logs.txt")) writer.Write([]byte(fmt.Sprintf("==== START logs for %s/%s ====\n", pod.Namespace, pod.Name))) request, err := f.LogsForObject(pod, &api.PodLogOptions{}) if err != nil { return err } data, err := request.DoRaw() if err != nil { return err } writer.Write(data) writer.Write([]byte(fmt.Sprintf("==== END logs for %s/%s ====\n", pod.Namespace, pod.Name))) } } dir := cmdutil.GetFlagString(cmd, "output-directory") if len(dir) == 0 { dir = "." } if dir != "-" { fmt.Fprintf(out, "Cluster info dumped to %s", dir) } return nil }