// Run runs the specified VMTServer. This should never exit.
func (s *VMTServer) Run(_ []string) error {
if s.Kubeconfig == "" && s.Master == "" {
glog.Warningf("Neither --kubeconfig nor --master was specified. Using default API client. This might not work.")
}
glog.V(3).Infof("Master is %s", s.Master)
if s.MetaConfigPath == "" {
glog.Fatalf("The path to the VMT config file is not provided.Exiting...")
os.Exit(1)
}
if (s.EtcdConfigFile != "" && len(s.EtcdServerList) != 0) || (s.EtcdConfigFile == "" && len(s.EtcdServerList) == 0) {
glog.Fatalf("specify either --etcd-servers or --etcd-config")
}
// This creates a client, first loading any specified kubeconfig
// file, and then overriding the Master flag, if non-empty.
kubeconfig, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
&clientcmd.ClientConfigLoadingRules{ExplicitPath: s.Kubeconfig},
&clientcmd.ConfigOverrides{ClusterInfo: clientcmdapi.Cluster{Server: s.Master}}).ClientConfig()
if err != nil {
glog.Errorf("Error getting kubeconfig: %s", err)
return err
}
// This specifies the number and the max number of query per second to the api server.
kubeconfig.QPS = 20.0
kubeconfig.Burst = 30
kubeClient, err := client.New(kubeconfig)
if err != nil {
glog.Fatalf("Invalid API configuration: %v", err)
}
// TODO not clear
// go func() {
// mux := http.NewServeMux()
// healthz.InstallHandler(mux)
// if s.EnableProfiling {
// mux.HandleFunc("/debug/pprof/", pprof.Index)
// mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
// mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
// }
// mux.Handle("/metrics", prometheus.Handler())
// server := &http.Server{
// Addr: net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)),
// Handler: mux,
// }
// glog.Fatal(server.ListenAndServe())
// }()
// serverAddr, targetType, nameOrAddress, targetIdentifier, password
vmtMeta, err := metadata.NewVMTMeta(s.MetaConfigPath)
if err != nil {
glog.Errorf("Get error when loading configurations: %s", err)
os.Exit(1)
}
glog.V(3).Infof("Finished loading configuration from %s", s.MetaConfigPath)
etcdclientBuilder := etcdhelper.NewEtcdClientBuilder().ServerList(s.EtcdServerList).SetTransport(s.EtcdCA, s.EtcdClientCertificate, s.EtcdClientKey)
etcdClient, err := etcdclientBuilder.CreateAndTest()
if err != nil {
glog.Errorf("Error creating etcd client instance for vmt service: %s", err)
return err
}
s.EtcdPathPrefix = master.DefaultEtcdPathPrefix
etcdStorage, err := newEtcd(etcdClient, latest.InterfacesFor, latest.Version, "", s.EtcdPathPrefix)
if err != nil {
glog.Warningf("Error creating etcd storage instance for vmt service: %s", err)
return err
}
vmtConfig := vmturbo.NewVMTConfig(kubeClient, etcdStorage, vmtMeta)
vmtService := vmturbo.NewVMTurboService(vmtConfig)
vmtService.Run()
select {}
}
func (s *SimulatorBuilder) Build() (*ActionSimulator, error) {
etcdclientBuilder := etcdhelper.NewEtcdClientBuilder().ServerList(s.EtcdServerList).SetTransport(s.EtcdCA, s.EtcdClientCertificate, s.EtcdClientKey)
etcdClient, err := etcdclientBuilder.CreateAndTest()
if err != nil {
glog.Errorf("Error creating etcd client instance for vmt service: %s", err)
return nil, err
}
etcdStorage, err := newEtcd(etcdClient, latest.InterfacesFor, latest.Version, "", s.EtcdPathPrefix)
if err != nil {
glog.Warningf("Error creating etcd storage instance for vmt service: %s", err)
return nil, err
}
simulator := &ActionSimulator{
kubeClient: s.KubeClient,
etcdStorage: etcdStorage,
}
if s.Action != "" {
simulator.action = s.Action
} else {
glog.Warningf("--action was not specified.")
}
if s.Destination != "" {
simulator.destination = s.Destination
} else {
glog.Warningf("--destination was not specified.")
}
if s.PodToMove != "" {
simulator.podToMove = s.PodToMove
} else {
glog.Warningf("--pod was not specified.")
}
if s.Namespace != "" {
simulator.namespace = s.Namespace
} else {
glog.Warningf("--namespace was not specified. use default.")
simulator.namespace = "default"
}
if s.Label != "" {
simulator.label = s.Label
} else {
glog.Warningf("--label was not specified.")
}
if s.NewReplica != "" {
simulator.newReplica = s.NewReplica
} else {
glog.Warningf("--new replica was not specified.")
}
return simulator, nil
}