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server.go
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server.go
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package srv
import (
"context"
"net/http"
_ "net/http/pprof"
"os"
"os/signal"
"syscall"
"github.com/cloudwego/hertz/pkg/app/server"
"github.com/cloudwego/kitex/pkg/klog"
"github.com/hertz-contrib/obs-opentelemetry/provider"
"github.com/hertz-contrib/obs-opentelemetry/tracing"
"github.com/weedge/pkg/driver"
"github.com/weedge/pkg/utils/logutils"
"github.com/weedge/wedis/internal/srv/config"
)
type Server struct {
opts *config.ServerOptions
kitexKVLogger logutils.IKitexZapKVLogger
// storage
store driver.IStorager
// RESPService
respSrv driver.IRespService
}
func (s *Server) startPPROF() {
go func() {
if err := http.ListenAndServe("0.0.0.0:"+s.opts.PProfPort, nil); err != nil {
klog.Warnf("open pprof http svr failed %v", err)
return
}
}()
}
// Run reviews server
func (s *Server) Run(ctx context.Context) error {
klog.SetLogger(s.kitexKVLogger)
klog.SetLevel(s.opts.LogLevel.KitexLogLevel())
klog.Infof("server opts: %+v", s.opts)
defer s.Stop()
s.startPPROF()
// open storager
if err := s.store.Open(ctx); err != nil {
return err
}
// set storager, start RESP service
s.respSrv.SetStorager(s.store)
if err := s.respSrv.Start(ctx); err != nil {
return err
}
if s.opts.OltpGrpcCollectorEndpoint != "" {
tracingProvider := provider.NewOpenTelemetryProvider(
provider.WithExportEndpoint(s.opts.OltpGrpcCollectorEndpoint),
provider.WithEnableMetrics(true),
provider.WithEnableTracing(true),
provider.WithServiceName(s.opts.ProjectName),
provider.WithInsecure(),
)
defer func(ctx context.Context, p provider.OtelProvider) {
_ = p.Shutdown(ctx)
}(ctx, tracingProvider)
}
if s.opts.HttpAddr == "" {
signalToNotify := []os.Signal{syscall.SIGINT, syscall.SIGHUP, syscall.SIGTERM}
if signal.Ignored(syscall.SIGHUP) {
signalToNotify = []os.Signal{syscall.SIGINT, syscall.SIGTERM}
}
sig := make(chan os.Signal, 1)
signal.Notify(sig, signalToNotify...)
<-sig
return nil
}
tracer, cfg := tracing.NewServerTracer()
h := server.Default(
tracer,
server.WithHostPorts(s.opts.HttpAddr),
)
h.Use(tracing.ServerMiddleware(cfg))
s.SetupRoutes(h)
h.Spin()
return nil
}
func (s *Server) Stop() {
if s.store != nil {
if err := s.store.Close(); err != nil {
klog.Errorf("close store err: %s", err.Error())
}
s.store = nil
}
if s.respSrv != nil {
if err := s.respSrv.Close(); err != nil {
klog.Errorf("close RESP cmd server err: %s", err.Error())
}
s.respSrv = nil
}
klog.Infof("server stop")
}