func main() {
flag.Parse()
if *version {
fmt.Printf("\n\nversion: %s\ngitSha: %s\n\n", versionNumber, gitSha)
return
}
level := gosteno.LOG_INFO
if *logLevel {
level = gosteno.LOG_DEBUG
}
loggingConfig := &gosteno.Config{
Sinks: make([]gosteno.Sink, 1),
Level: level,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true}
if strings.TrimSpace(*logFilePath) == "" {
loggingConfig.Sinks[0] = gosteno.NewIOSink(os.Stdout)
} else {
loggingConfig.Sinks[0] = gosteno.NewFileSink(*logFilePath)
}
gosteno.Init(loggingConfig)
logger := gosteno.NewLogger("deaagent")
loggregatorClient := loggregatorclient.NewLoggregatorClient(*loggregatorAddress, logger, 4096)
agent := deaagent.NewAgent(*instancesJsonFilePath, logger)
agent.Start(loggregatorClient)
}
func InitLoggerFromConfig(c *config.Config, logCounter *vcap.LogCounter) {
l, err := steno.GetLogLevel(c.Logging.Level)
if err != nil {
panic(err)
}
s := make([]steno.Sink, 0, 3)
if c.Logging.File != "" {
s = append(s, steno.NewFileSink(c.Logging.File))
} else {
s = append(s, steno.NewIOSink(os.Stdout))
}
if c.Logging.Syslog != "" {
s = append(s, steno.NewSyslogSink(c.Logging.Syslog))
}
s = append(s, logCounter)
stenoConfig := &steno.Config{
Sinks: s,
Codec: steno.NewJsonCodec(),
Level: l,
}
steno.Init(stenoConfig)
}
func loadLoggerAndConfig(c *cli.Context, component string) (logger.Logger, *gosteno.Logger, *config.Config) {
configPath := c.String("config")
if configPath == "" {
fmt.Printf("Config path required")
os.Exit(1)
}
conf, err := config.FromFile(configPath)
if err != nil {
fmt.Printf("Failed to load config: %s", err.Error())
os.Exit(1)
}
stenoConf := &gosteno.Config{
Sinks: []gosteno.Sink{
gosteno.NewIOSink(os.Stdout),
gosteno.NewSyslogSink("vcap.hm9000." + component),
},
Level: conf.LogLevel(),
Codec: gosteno.NewJsonCodec(),
}
gosteno.Init(stenoConf)
steno := gosteno.NewLogger("vcap.hm9000." + component)
hmLogger := logger.NewRealLogger(steno)
return hmLogger, steno, conf
}
func SetupLoggerFromConfig(c *config.Config) {
l, err := steno.GetLogLevel(c.Logging.Level)
if err != nil {
panic(err)
}
s := make([]steno.Sink, 0)
if c.Logging.File != "" {
s = append(s, steno.NewFileSink(c.Logging.File))
} else {
s = append(s, steno.NewIOSink(os.Stdout))
}
if c.Logging.Syslog != "" {
s = append(s, steno.NewSyslogSink(c.Logging.Syslog))
}
stenoConfig := &steno.Config{
Sinks: s,
Codec: steno.NewJsonCodec(),
Level: l,
}
steno.Init(stenoConfig)
log = steno.NewLogger("router.global")
}
func NewLogger(verbose bool, logFilePath, name string, syslogNamespace string) *gosteno.Logger {
level := gosteno.LOG_INFO
if verbose {
level = gosteno.LOG_DEBUG
}
loggingConfig := &gosteno.Config{
Sinks: make([]gosteno.Sink, 1),
Level: level,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true}
if strings.TrimSpace(logFilePath) == "" {
loggingConfig.Sinks[0] = gosteno.NewIOSink(os.Stdout)
} else {
loggingConfig.Sinks[0] = gosteno.NewFileSink(logFilePath)
}
if syslogNamespace != "" {
loggingConfig.Sinks = append(loggingConfig.Sinks, GetNewSyslogSink(syslogNamespace))
}
gosteno.Init(loggingConfig)
logger := gosteno.NewLogger(name)
logger.Debugf("Component %s in debug mode!", name)
return logger
}
func main() {
flag.Parse()
level, err := gosteno.GetLogLevel(*logLevel)
if err != nil {
level = gosteno.LOG_INFO
}
loggingConfig := &gosteno.Config{
Sinks: []gosteno.Sink{
gosteno.NewIOSink(os.Stdout),
},
Level: level,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true,
}
gosteno.Init(loggingConfig)
logger := gosteno.NewLogger("statsdinjector")
statsdMessageListener := statsdlistener.New(*statsdPort, logger)
statsdEmitter := statsdemitter.New(*metronPort, logger)
inputChan := make(chan *events.Envelope)
go statsdMessageListener.Run(inputChan)
statsdEmitter.Run(inputChan)
}
func main() {
flag.Parse()
if *version {
fmt.Printf("\n\nversion: %s\ngitSha: %s\n\n", versionNumber, gitSha)
return
}
level := gosteno.LOG_INFO
if *logLevel {
level = gosteno.LOG_DEBUG
}
loggingConfig := &gosteno.Config{
Sinks: make([]gosteno.Sink, 1),
Level: level,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true}
if strings.TrimSpace(*logFilePath) == "" {
loggingConfig.Sinks[0] = gosteno.NewIOSink(os.Stdout)
} else {
loggingConfig.Sinks[0] = gosteno.NewFileSink(*logFilePath)
}
gosteno.Init(loggingConfig)
logger := gosteno.NewLogger("loggregator")
listener := loggregator.NewAgentListener(*host, logger)
incomingData := listener.Start()
cfSink := loggregator.NewCfSink(incomingData, logger)
cfSink.Start()
}
func setup_steno(conf *proxy.ProxyConfig) {
level, err := steno.GetLogLevel(conf.LOGGING.LEVEL)
if err != nil {
panic(err)
}
log_path := conf.LOGGING.PATH
if log_path != "" {
os.MkdirAll(filepath.Dir(log_path), 0755)
}
sinks := make([]steno.Sink, 0)
if log_path != "" {
sinks = append(sinks, steno.NewFileSink(log_path))
} else {
sinks = append(sinks, steno.NewIOSink(os.Stdout))
}
stenoConfig := &steno.Config{
Sinks: sinks,
Codec: steno.NewJsonCodec(),
Level: level,
}
steno.Init(stenoConfig)
}
func init() {
steno.Init(&steno.Config{
Sinks: []steno.Sink{steno.NewIOSink(os.Stderr)},
Codec: steno.NewJsonCodec(),
Level: steno.LOG_ALL,
})
log = steno.NewLogger("directory_server_test")
}
func init() {
stenoConfig := &steno.Config{
Sinks: []steno.Sink{steno.NewIOSink(os.Stderr)},
Codec: steno.NewJsonCodec(),
Level: steno.LOG_ALL,
}
steno.Init(stenoConfig)
log = steno.NewLogger("common.logger")
}
func Test(t *testing.T) {
config := &steno.Config{
Sinks: []steno.Sink{},
Codec: steno.NewJsonCodec(),
Level: steno.LOG_INFO,
}
steno.Init(config)
log = steno.NewLogger("test")
TestingT(t)
}
func InitLog(logFile string) {
c := &steno.Config{
Level: steno.LOG_INFO,
Codec: steno.NewJsonCodec(),
EnableLOC: true,
}
if logFile == "" {
c.Sinks = []steno.Sink{steno.NewIOSink(os.Stdout)}
} else {
c.Sinks = []steno.Sink{steno.NewFileSink(logFile)}
}
steno.Init(c)
obj = steno.NewLogger("")
}
func main() {
stenoConfig := &steno.Config{
Sinks: []steno.Sink{steno.NewIOSink(os.Stderr)},
Codec: steno.NewJsonCodec(),
Level: steno.LOG_ALL,
}
steno.Init(stenoConfig)
log = steno.NewLogger("router.test")
s := true
log.Infof("test %s ", s)
p := &Proxy{}
p.Logger = steno.NewLogger("router.registry")
p.Infof("hello %s", "ss\n")
fmt.Printf("fmt world\n")
}
func getLogger(debug bool) *gosteno.Logger {
if debug {
level := gosteno.LOG_DEBUG
loggingConfig := &gosteno.Config{
Sinks: make([]gosteno.Sink, 1),
Level: level,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true,
}
loggingConfig.Sinks[0] = gosteno.NewIOSink(os.Stdout)
gosteno.Init(loggingConfig)
}
return gosteno.NewLogger("TestLogger")
}
func loadLoggerAndConfig(c *cli.Context, component string) (logger.Logger, *gosteno.Logger, *config.Config) {
configPath := c.String("config")
if configPath == "" {
fmt.Printf("Config path required")
os.Exit(1)
}
conf, err := config.FromFile(configPath)
if err != nil {
fmt.Printf("Failed to load config: %s", err.Error())
os.Exit(1)
}
sinks := make([]gosteno.Sink, 0, 3)
if conf.LogDirectory != "" {
logName := fmt.Sprintf("hm9000_%s.log", component)
logFile := path.Join(conf.LogDirectory, logName)
sinks = append(sinks, gosteno.NewFileSink(logFile))
} else {
sinks = append(sinks, gosteno.NewIOSink(os.Stdout))
}
sinks = append(sinks, gosteno.NewSyslogSink("vcap.hm9000."+component))
stenoConf := &gosteno.Config{
Sinks: sinks,
Level: conf.LogLevel(),
Codec: gosteno.NewJsonCodec(),
}
gosteno.Init(stenoConf)
steno := gosteno.NewLogger("vcap.hm9000." + component)
hmLogger := logger.NewRealLogger(steno)
debugAddr := c.String("debugAddr")
if debugAddr != "" {
_, err = cf_debug_server.Run(debugAddr, nil)
if err != nil {
hmLogger.Error("Failed to start debug server", err)
os.Exit(1)
}
}
return hmLogger, steno, conf
}
func setupStdoutLogger() steno.Logger {
level, err := steno.GetLogLevel("debug")
if err != nil {
panic(err)
}
sinks := make([]steno.Sink, 0)
sinks = append(sinks, steno.NewIOSink(os.Stdout))
stenoConfig := &steno.Config{
Sinks: sinks,
Codec: steno.NewJsonCodec(),
Level: level,
}
steno.Init(stenoConfig)
return steno.NewLogger("mongodb_proxy")
}
func SetupSteno(logConfig *LogConfig) {
level, err := steno.GetLogLevel(logConfig.Level)
if err != nil {
panic(err)
}
sinks := make([]steno.Sink, 0)
if logConfig.File != "" {
sinks = append(sinks, steno.NewFileSink(logConfig.File))
} else {
sinks = append(sinks, steno.NewIOSink(os.Stdout))
}
if logConfig.Syslog != "" {
sinks = append(sinks, steno.NewSyslogSink(logConfig.Syslog))
}
stenoConfig := &steno.Config{
Sinks: sinks,
Codec: steno.NewJsonCodec(),
Level: level,
}
steno.Init(stenoConfig)
}
var natsRunner *natsrunner.NATSRunner
var logger *gosteno.Logger
var sink *gosteno.TestingSink
BeforeEach(func() {
natsPort := test_util.NextAvailPort()
natsRunner = natsrunner.NewNATSRunner(int(natsPort))
natsRunner.Start()
mbusClient = natsRunner.MessageBus
sink = gosteno.NewTestingSink()
c := &gosteno.Config{
Sinks: []gosteno.Sink{
sink,
},
Level: gosteno.LOG_INFO,
Codec: gosteno.NewJsonCodec(),
EnableLOC: true,
}
gosteno.Init(c)
logger = gosteno.NewLogger("test")
})
AfterEach(func() {
natsRunner.Stop()
})
It("subscribes to vcap.component.discover", func() {
done := make(chan struct{})
members := []string{
"type",
"index",
// the HTTP request is from dea push cmd, from 10.0.2.15:5678
func (p *Proxy) ServeHTTP(hrw http.ResponseWriter, req *http.Request) {
rw := responseWriter{
ResponseWriter: hrw,
Logger: p.Logger.Copy(),
}
// log for zjlog!
stenoConfig := &steno.Config{
Sinks: []steno.Sink{steno.NewIOSink(os.Stderr)},
Codec: steno.NewJsonCodec(),
Level: steno.LOG_ALL,
}
steno.Init(stenoConfig)
zlog = steno.NewLogger("router.test")
rw.Set("RemoteAddr", req.RemoteAddr)
rw.Set("Host", req.Host)
rw.Set("X-Forwarded-For", req.Header["X-Forwarded-For"]) //
rw.Set("X-Forwarded-Proto", req.Header["X-Forwarded-Proto"])
a := AccessLogRecord{
Request: req,
StartedAt: time.Now(),
}
if req.ProtoMajor != 1 && (req.ProtoMinor != 0 || req.ProtoMinor != 1) {
c, brw, err := rw.Hijack()
if err != nil {
panic(err)
}
fmt.Fprintf(brw, "HTTP/1.0 400 Bad Request\r\n\r\n")
brw.Flush()
c.Close()
return
}
start := time.Now()
// Return 200 OK for heartbeats from LB
if req.UserAgent() == "HTTP-Monitor/1.1" {
rw.WriteHeader(http.StatusOK)
fmt.Fprintln(rw, "ok")
return
}
rw.Infof("zhang:req= %s", req)
bytes, _ := ioutil.ReadAll(req.Body)
parentTx := ""
rootTx := ""
parentName := ""
parent_port := ""
subName := ""
invocationCtx := ""
cat := string(bytes)
var rm reqMessage
u_err := json.Unmarshal(bytes, &rm)
if u_err != nil {
rw.Infof("cat= %s", cat)
rw.Infof("!umarshal error %s ", u_err)
}
if len(rm.Params) > 0 {
str := string(rm.Params[0]) //居然index out of range
rw.Info(str)
arr := strings.Split(str, "|")
// rw.Infof("0=%s", arr[0])
// rw.Infof("1=%s",arr[1])
//
rootTx = arr[1]
parentTx = arr[2]
if len(arr) > 6 {
parentName = arr[3] // actually , this is current component
parent_port = arr[4]
subName = arr[5]
invocationCtx = arr[6]
}
rm.Params[0] = Param(arr[0]) //什么意思？？？
y, err := json.Marshal(rm)
if err != nil {
rw.Infof("marshal error %s ", err)
}
req.Body = ioutil.NopCloser(strings.NewReader(string(y))) //
} else {
rw.Infof("rm.Params == nil %s", rm.Params)
}
//
rw.Infof("mybody = %s", cat) // bufio.Reader
//所以，或许parentTx要在lookup前
//首先时获取backend，如果此处因为状态，返回nil，那么，就不会再有请求了。
x, ok := p.Lookup(req, rootTx) // get backend, if there is JSESSIONID , router to the same backend
if !ok {
p.Varz.CaptureBadRequest(req)
rw.WriteStatus(http.StatusNotFound)
return
}
fmt.Printf("check whether use cachedTxBackends \n")
if rootTx != "" {
h := hostWithoutPort(req)
fmt.Printf("h = %s \n", h)
find_key := h + ":" + rootTx
if p.CachedTxBackends[find_key] != nil {
x = p.CachedTxBackends[find_key]
fmt.Printf("%s get key: app_id = %s from map ,tx = %s\n", x.CollectPort, x.ApplicationId, rootTx)
} else {
key := h + ":" + rootTx
p.CachedTxBackends[key] = x
fmt.Printf("%s save key:%s to map ,tx = %s \n", x.CollectPort, x.ApplicationId, rootTx)
}
fmt.Printf("%v ,%d, %s, blocked false\n ", x.BackendId, x.ApplicationId, x.Port)
sub_port := x.CollectPort
remote := &remoteMessage{
RootTx: rootTx,
ParentTx: parentTx,
ParentPort: parent_port,
ParentName: parentName,
SubPort: sub_port,
SubName: subName,
InvocationCtx: invocationCtx,
}
cachedTxes := p.CachedBackendTxes[x.PrivateInstanceId]
p.CachedBackendTxes[x.PrivateInstanceId] = append(cachedTxes, remote)
// fmt.Printf("after add \n")
//
//
// for x,y := range p.CachedBackendTxes {
// for j := 0 ; j < len (y); j++ {
// fmt.Printf("i:%s,j:%d,remote:%s.\n",x,j,y[j].RootTx)
// }
// }
} else {
fmt.Printf("rootTx == whitespace \n")
}
rw.Set("Backend", x.ToLogData())
a.Backend = x
p.Registry.CaptureBackendRequest(x, start) //record request
p.Varz.CaptureBackendRequest(x, req)
req.URL.Scheme = "http"
req.URL.Host = x.CanonicalAddr()
// Add X-Forwarded-For
if host, _, err := net.SplitHostPort(req.RemoteAddr); err == nil {
// We assume there is a trusted upstream (L7 LB) that properly
// strips client's XFF header
// This is sloppy but fine since we don't share this request or
// headers. Otherwise we should copy the underlying header and
// append
xff := append(req.Header["X-Forwarded-For"], host)
req.Header.Set("X-Forwarded-For", strings.Join(xff, ", "))
}
// Check if the connection is going to be upgraded to a WebSocket connection
if p.CheckWebSocket(rw, req) {
p.ServeWebSocket(rw, req)
return
}
// Use a new connection for every request
// Keep-alive can be bolted on later, if we want to
req.Close = true
req.Header.Del("Connection")
// this is used for send request and get resposne
res, err := http.DefaultTransport.RoundTrip(req)
latency := time.Since(start)
a.FirstByteAt = time.Now()
a.Response = res
if err != nil {
p.Varz.CaptureBackendResponse(x, res, latency)
rw.Warnf("Error reading from upstream: %s", err)
rw.WriteStatus(http.StatusBadGateway)
return
}
rw.Infof("zhang:res= %s", res)
p.Varz.CaptureBackendResponse(x, res, latency)
for k, vv := range res.Header {
for _, v := range vv {
rw.Header().Add(k, v)
}
}
if p.Config.TraceKey != "" && req.Header.Get(VcapTraceHeader) == p.Config.TraceKey {
rw.Header().Set(VcapRouterHeader, p.Config.Ip)
rw.Header().Set(VcapBackendHeader, x.CanonicalAddr())
}
needSticky := false
//这里是判断response中，cookie中是否有jsessionid
for _, v := range res.Cookies() { // here we get res.Cookies(), if exists v[i].name = StickyCookieKey
zlog.Info(v.Name) //基于Cookie的web应用，会将数据存成<key,value>
//但是基于Http Session的应用，为什么在这里只看到了jsessionid？
if v.Name == StickyCookieKey { //JSESSIONID
needSticky = true // here flag = needSticky
break
}
}
if needSticky && x.PrivateInstanceId != "" {
cookie := &http.Cookie{ // here we got http cookie which has sessionid
Name: VcapCookieId,
Value: x.PrivateInstanceId,
Path: "/",
} //
http.SetCookie(rw, cookie) // set httpCookie 只在发现有sticky session时，才set Cookie
// http session,第一次生成jsessionid时，会在返回头部加上cookie
}
rw.WriteHeader(res.StatusCode)
n, _ := rw.CopyFrom(res.Body)
a.FinishedAt = time.Now()
a.BodyBytesSent = n
if p.AccessLogger != nil {
p.AccessLogger.Log(a)
}
}