func newEtcd(etcdConfigFile string, etcdServerList util.StringList, interfacesFunc meta.VersionInterfacesFunc, defaultVersion, storageVersion, pathPrefix string) (etcdStorage storage.Interface, err error) {
var client tools.EtcdClient
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
if err != nil {
return nil, err
}
} else {
etcdClient := etcd.NewClient(etcdServerList)
transport := &http.Transport{
Dial: forked.Dial,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
MaxIdleConnsPerHost: 500,
}
etcdClient.SetTransport(transport)
client = etcdClient
}
if storageVersion == "" {
storageVersion = defaultVersion
}
return master.NewEtcdStorage(client, interfacesFunc, storageVersion, pathPrefix)
}
func newEtcd(etcdConfigFile string, etcdServerList []string, interfacesFunc meta.VersionInterfacesFunc, storageVersion, pathPrefix string) (etcdStorage storage.Interface, err error) {
if storageVersion == "" {
return etcdStorage, fmt.Errorf("storageVersion is required to create a etcd storage")
}
var client tools.EtcdClient
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
if err != nil {
return nil, err
}
} else {
etcdClient := etcd.NewClient(etcdServerList)
transport := &http.Transport{
Dial: forked.Dial,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
MaxIdleConnsPerHost: 500,
}
etcdClient.SetTransport(transport)
client = etcdClient
}
etcdStorage, err = master.NewEtcdStorage(client, interfacesFunc, storageVersion, pathPrefix)
return etcdStorage, err
}
// hacked from https://github.com/GoogleCloudPlatform/kubernetes/blob/release-0.14/cmd/kube-apiserver/app/server.go
func newEtcd(etcdConfigFile string, etcdServerList util.StringList) (client tools.EtcdGetSet, err error) {
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
} else {
client = etcd.NewClient(etcdServerList)
}
return
}
// hacked from https://github.com/GoogleCloudPlatform/kubernetes/blob/release-0.14/cmd/kube-apiserver/app/server.go
func newEtcd(etcdConfigFile string, etcdServerList []string) (client *etcd.Client, err error) {
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
} else {
client = etcd.NewClient(etcdServerList)
}
return
}
// TODO: move this into a pkg/tools/etcd_tools
func EtcdClientOrDie(etcdServerList util.StringList, etcdConfigFile string) *etcd.Client {
if len(etcdServerList) > 0 {
return etcd.NewClient(etcdServerList)
} else if etcdConfigFile != "" {
etcdClient, err := etcd.NewClientFromFile(etcdConfigFile)
if err != nil {
glog.Fatalf("Error with etcd config file: %v", err)
}
return etcdClient
}
return nil
}
func newEtcd(etcdConfigFile string, etcdServerList util.StringList) (helper tools.EtcdHelper, err error) {
var client tools.EtcdGetSet
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
if err != nil {
return helper, err
}
} else {
client = etcd.NewClient(etcdServerList)
}
return master.NewEtcdHelper(client, *storageVersion)
}
func (this *EtcdClientBuilder) Create() (client tools.EtcdClient, err error) {
if this.etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(this.etcdConfigFile)
if err != nil {
return
}
} else {
etcdClient := etcd.NewClient(this.etcdServerList)
etcdClient.SetTransport(this.transport)
client = etcdClient
}
return
}
func initializeClient(configFilePath string) *etcd.Client {
etcdClient, error := etcd.NewClientFromFile(configFilePath)
if error != nil {
config.LogFatal("Error when trying to load the configuration file: `"+configFilePath+"`. Error: ", error)
}
success := etcdClient.SyncCluster()
if !success {
config.LogFatal("cannot sync machines")
}
return etcdClient
}
func main() {
c := config{}
initFlags(&c)
pflag.Parse()
validateFlags(&c)
machines := strings.Split(c.etcdServers, ",")
var etcdClient *etcd.Client
if c.etcdConfig != "" {
var err error
etcdClient, err = etcd.NewClientFromFile(c.etcdConfig)
if err != nil {
glog.Fatal(err)
}
} else {
etcdClient = etcd.NewClient(machines)
}
c.leaseAndUpdateLoop(etcdClient)
}
func newEtcd(etcdConfigFile string, etcdServerList util.StringList, storageVersion string, pathPrefix string) (helper tools.EtcdHelper, err error) {
var client tools.EtcdGetSet
if etcdConfigFile != "" {
client, err = etcd.NewClientFromFile(etcdConfigFile)
if err != nil {
return helper, err
}
} else {
etcdClient := etcd.NewClient(etcdServerList)
transport := &http.Transport{
Dial: forked.Dial,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
MaxIdleConnsPerHost: 500,
}
etcdClient.SetTransport(transport)
client = etcdClient
}
return master.NewEtcdHelper(client, storageVersion, pathPrefix)
}
func main() {
flag.Parse()
util.InitLogs()
defer util.FlushLogs()
verflag.PrintAndExitIfRequested()
serviceConfig := config.NewServiceConfig()
endpointsConfig := config.NewEndpointsConfig()
// define api config source
if clientConfig.Host != "" {
glog.Infof("Using api calls to get config %v", clientConfig.Host)
client, err := client.New(clientConfig)
if err != nil {
glog.Fatalf("Invalid API configuration: %v", err)
}
config.NewSourceAPI(
client.Services(api.NamespaceAll),
client.Endpoints(api.NamespaceAll),
30*time.Second,
serviceConfig.Channel("api"),
endpointsConfig.Channel("api"),
)
} else {
var etcdClient *etcd.Client
// Set up etcd client
if len(etcdServerList) > 0 {
// Set up logger for etcd client
etcd.SetLogger(util.NewLogger("etcd "))
etcdClient = etcd.NewClient(etcdServerList)
} else if *etcdConfigFile != "" {
// Set up logger for etcd client
etcd.SetLogger(util.NewLogger("etcd "))
var err error
etcdClient, err = etcd.NewClientFromFile(*etcdConfigFile)
if err != nil {
glog.Fatalf("Error with etcd config file: %v", err)
}
}
// Create a configuration source that handles configuration from etcd.
if etcdClient != nil {
glog.Infof("Using etcd servers %v", etcdClient.GetCluster())
config.NewConfigSourceEtcd(etcdClient,
serviceConfig.Channel("etcd"),
endpointsConfig.Channel("etcd"))
}
}
loadBalancer := proxy.NewLoadBalancerRR()
proxier := proxy.NewProxier(loadBalancer, net.IP(bindAddress), iptables.New(exec.New()))
// Wire proxier to handle changes to services
serviceConfig.RegisterHandler(proxier)
// And wire loadBalancer to handle changes to endpoints to services
endpointsConfig.RegisterHandler(loadBalancer)
// Just loop forever for now...
proxier.SyncLoop()
}
func main() {
util.InitFlags()
util.InitLogs()
defer util.FlushLogs()
if err := util.ApplyOomScoreAdj(*oomScoreAdj); err != nil {
glog.Info(err)
}
verflag.PrintAndExitIfRequested()
serviceConfig := config.NewServiceConfig()
endpointsConfig := config.NewEndpointsConfig()
protocol := iptables.ProtocolIpv4
if net.IP(bindAddress).To4() == nil {
protocol = iptables.ProtocolIpv6
}
loadBalancer := proxy.NewLoadBalancerRR()
proxier := proxy.NewProxier(loadBalancer, net.IP(bindAddress), iptables.New(exec.New(), protocol))
if proxier == nil {
glog.Fatalf("failed to create proxier, aborting")
}
// Wire proxier to handle changes to services
serviceConfig.RegisterHandler(proxier)
// And wire loadBalancer to handle changes to endpoints to services
endpointsConfig.RegisterHandler(loadBalancer)
// Note: RegisterHandler() calls need to happen before creation of Sources because sources
// only notify on changes, and the initial update (on process start) may be lost if no handlers
// are registered yet.
// define api config source
if clientConfig.Host != "" {
glog.Infof("Using api calls to get config %v", clientConfig.Host)
client, err := client.New(clientConfig)
if err != nil {
glog.Fatalf("Invalid API configuration: %v", err)
}
config.NewSourceAPI(
client.Services(api.NamespaceAll),
client.Endpoints(api.NamespaceAll),
30*time.Second,
serviceConfig.Channel("api"),
endpointsConfig.Channel("api"),
)
} else {
var etcdClient *etcd.Client
// Set up etcd client
if len(etcdServerList) > 0 {
// Set up logger for etcd client
etcd.SetLogger(util.NewLogger("etcd "))
etcdClient = etcd.NewClient(etcdServerList)
} else if *etcdConfigFile != "" {
// Set up logger for etcd client
etcd.SetLogger(util.NewLogger("etcd "))
var err error
etcdClient, err = etcd.NewClientFromFile(*etcdConfigFile)
if err != nil {
glog.Fatalf("Error with etcd config file: %v", err)
}
}
// Create a configuration source that handles configuration from etcd.
if etcdClient != nil {
glog.Infof("Using etcd servers %v", etcdClient.GetCluster())
config.NewConfigSourceEtcd(etcdClient,
serviceConfig.Channel("etcd"),
endpointsConfig.Channel("etcd"))
}
}
if *healthz_port > 0 {
go util.Forever(func() {
err := http.ListenAndServe(bindAddress.String()+":"+strconv.Itoa(*healthz_port), nil)
if err != nil {
glog.Errorf("Starting health server failed: %v", err)
}
}, 5*time.Second)
}
// Just loop forever for now...
proxier.SyncLoop()
}
func main() {
flag.Parse()
util.InitLogs()
defer util.FlushLogs()
rand.Seed(time.Now().UTC().UnixNano())
verflag.PrintAndExitIfRequested()
if *runonce {
exclusiveFlag := "invalid option: --runonce and %s are mutually exclusive"
if len(etcdServerList) > 0 {
glog.Fatalf(exclusiveFlag, "--etcd_servers")
}
if *enableServer {
glog.Infof("--runonce is set, disabling server")
*enableServer = false
}
}
etcd.SetLogger(util.NewLogger("etcd "))
// Log the events locally too.
record.StartLogging(glog.Infof)
capabilities.Initialize(capabilities.Capabilities{
AllowPrivileged: *allowPrivileged,
})
dockerClient, err := docker.NewClient(getDockerEndpoint())
if err != nil {
glog.Fatal("Couldn't connect to docker.")
}
hostname := getHostname()
if *rootDirectory == "" {
glog.Fatal("Invalid root directory path.")
}
*rootDirectory = path.Clean(*rootDirectory)
if err := os.MkdirAll(*rootDirectory, 0750); err != nil {
glog.Fatalf("Error creating root directory: %v", err)
}
// source of all configuration
cfg := kconfig.NewPodConfig(kconfig.PodConfigNotificationSnapshotAndUpdates)
// define file config source
if *config != "" {
kconfig.NewSourceFile(*config, *fileCheckFrequency, cfg.Channel("file"))
}
// define url config source
if *manifestURL != "" {
kconfig.NewSourceURL(*manifestURL, *httpCheckFrequency, cfg.Channel("http"))
}
// define etcd config source and initialize etcd client
var etcdClient *etcd.Client
if len(etcdServerList) > 0 {
etcdClient = etcd.NewClient(etcdServerList)
} else if *etcdConfigFile != "" {
var err error
etcdClient, err = etcd.NewClientFromFile(*etcdConfigFile)
if err != nil {
glog.Fatalf("Error with etcd config file: %v", err)
}
}
if etcdClient != nil {
glog.Infof("Watching for etcd configs at %v", etcdClient.GetCluster())
kconfig.NewSourceEtcd(kconfig.EtcdKeyForHost(hostname), etcdClient, cfg.Channel("etcd"))
}
// TODO: block until all sources have delivered at least one update to the channel, or break the sync loop
// up into "per source" synchronizations
k := kubelet.NewMainKubelet(
getHostname(),
dockerClient,
etcdClient,
*rootDirectory,
*networkContainerImage,
*syncFrequency,
float32(*registryPullQPS),
*registryBurst,
*minimumGCAge,
*maxContainerCount)
k.BirthCry()
go func() {
util.Forever(func() {
err := k.GarbageCollectContainers()
if err != nil {
glog.Errorf("Garbage collect failed: %v", err)
}
}, time.Minute*1)
}()
go func() {
defer util.HandleCrash()
// TODO: Monitor this connection, reconnect if needed?
glog.V(1).Infof("Trying to create cadvisor client.")
cadvisorClient, err := cadvisor.NewClient("http://127.0.0.1:4194")
if err != nil {
glog.Errorf("Error on creating cadvisor client: %v", err)
return
}
glog.V(1).Infof("Successfully created cadvisor client.")
k.SetCadvisorClient(cadvisorClient)
}()
// TODO: These should probably become more plugin-ish: register a factory func
// in each checker's init(), iterate those here.
health.AddHealthChecker(health.NewExecHealthChecker(k))
health.AddHealthChecker(health.NewHTTPHealthChecker(&http.Client{}))
health.AddHealthChecker(&health.TCPHealthChecker{})
// process pods and exit.
if *runonce {
if _, err := k.RunOnce(cfg.Updates()); err != nil {
glog.Fatalf("--runonce failed: %v", err)
}
return
}
// start the kubelet
go util.Forever(func() { k.Run(cfg.Updates()) }, 0)
// start the kubelet server
if *enableServer {
go util.Forever(func() {
kubelet.ListenAndServeKubeletServer(k, cfg.Channel("http"), net.IP(address), *port, *enableDebuggingHandlers)
}, 0)
}
// runs forever
select {}
}