/
main.go
100 lines (87 loc) · 2.54 KB
/
main.go
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package main
import (
"flag"
"fmt"
"github.com/afex/hystrix-go/hystrix"
"github.com/go-kit/kit/log"
"github.com/openzipkin/zipkin-go"
zipkinhttpsvr "github.com/openzipkin/zipkin-go/middleware/http"
zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
_ "github.com/pp553933054/micro-go-book/ch13-seckill/gateway/config"
"github.com/pp553933054/micro-go-book/ch13-seckill/gateway/route"
"github.com/pp553933054/micro-go-book/ch13-seckill/pkg/bootstrap"
register "github.com/pp553933054/micro-go-book/ch13-seckill/pkg/discover"
"net"
"net/http"
"os"
"os/signal"
"syscall"
)
func main() {
// 创建环境变量
var (
zipkinURL = flag.String("zipkin.url", "http://localhost:9411/api/v2/spans", "Zipkin server url")
)
flag.Parse()
//创建日志组件
var logger log.Logger
{
logger = log.NewLogfmtLogger(os.Stderr)
logger = log.With(logger, "ts", log.DefaultTimestampUTC)
logger = log.With(logger, "caller", log.DefaultCaller)
}
var zipkinTracer *zipkin.Tracer
{
var (
err error
useNoopTracer = *zipkinURL == ""
reporter = zipkinhttp.NewReporter(*zipkinURL)
)
defer reporter.Close()
zEP, _ := zipkin.NewEndpoint(bootstrap.HttpConfig.Host, bootstrap.HttpConfig.Port)
zipkinTracer, err = zipkin.NewTracer(
reporter, zipkin.WithLocalEndpoint(zEP), zipkin.WithNoopTracer(useNoopTracer),
)
if err != nil {
logger.Log("err", err)
os.Exit(1)
}
if !useNoopTracer {
logger.Log("tracer", "Zipkin", "type", "Native", "URL", *zipkinURL)
}
}
register.Register()
tags := map[string]string{
"component": "gateway_server",
}
hystrixRouter := route.Routes(zipkinTracer, "Circuit Breaker:Service unavailable", logger)
handler := zipkinhttpsvr.NewServerMiddleware(
zipkinTracer,
zipkinhttpsvr.SpanName(bootstrap.DiscoverConfig.ServiceName),
zipkinhttpsvr.TagResponseSize(true),
zipkinhttpsvr.ServerTags(tags),
)(hystrixRouter)
errc := make(chan error)
//启用hystrix实时监控,监听端口为9010
hystrixStreamHandler := hystrix.NewStreamHandler()
hystrixStreamHandler.Start()
go func() {
errc <- http.ListenAndServe(net.JoinHostPort("", "9010"), hystrixStreamHandler)
}()
go func() {
c := make(chan os.Signal)
signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
errc <- fmt.Errorf("%s", <-c)
}()
//开始监听
go func() {
logger.Log("transport", "HTTP", "addr", "9090")
register.Register()
errc <- http.ListenAndServe(":9090", handler)
}()
// 开始运行,等待结束
error := <-errc
//服务退出取消注册
register.Deregister()
logger.Log("exit", error)
}