122 lines
2.2 KiB
Go
122 lines
2.2 KiB
Go
package main
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import (
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"context"
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"crypto/ecdsa"
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"errors"
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"time"
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"github.com/fasthttp/router"
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"github.com/valyala/fasthttp"
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"go.uber.org/zap"
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"google.golang.org/grpc/grpclog"
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)
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type app struct {
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pool *Pool
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log *zap.Logger
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timeout time.Duration
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key *ecdsa.PrivateKey
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}
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func main() {
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var (
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err error
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v = settings()
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l = newLogger(v)
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z = gRPCLogger(l)
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g = newGracefulContext(l)
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d = v.GetDuration("rebalance_timer")
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)
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if v.GetBool("verbose") {
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grpclog.SetLoggerV2(z)
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}
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a := &app{
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log: l,
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pool: newPool(l, v),
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key: fetchKey(l, v),
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timeout: v.GetDuration("request_timeout"),
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}
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r := router.New()
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r.RedirectTrailingSlash = true
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r.GET("/get/:cid/:oid", a.receiveFile)
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// attaching /-/(ready,healthy)
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attachHealthy(r, a.pool.unhealthy)
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// enable metrics
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if v.GetBool("metrics") {
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l.Info("enabled /metrics")
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attachMetrics(r, z)
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}
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// enable pprof
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if v.GetBool("pprof") {
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l.Info("enabled /debug/pprof")
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attachProfiler(r)
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}
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en := &fasthttp.Server{
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Name: "neofs-http-gate",
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Handler: r.Handler,
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ReadBufferSize: 4096,
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ReadTimeout: time.Second * 15,
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GetOnly: true,
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DisableHeaderNamesNormalizing: true,
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NoDefaultServerHeader: true,
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NoDefaultContentType: true,
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}
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go func() {
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bind := v.GetString("listen_address")
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l.Info("run gateway server",
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zap.String("address", bind))
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if err := en.ListenAndServe(bind); err != nil {
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l.Panic("could not start server", zap.Error(err))
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}
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}()
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go checkConnection(g, d, a.pool)
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a.pool.reBalance(g)
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switch _, err = a.pool.getConnection(g); {
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case err == nil:
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// ignore
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case errors.Is(err, context.Canceled):
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// ignore
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// l.Info("context canceled")
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default:
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l.Error("could get connection", zap.Error(err))
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return
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}
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<-g.Done()
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l.Info("web server stopped", zap.Error(en.Shutdown()))
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}
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func checkConnection(ctx context.Context, dur time.Duration, p *Pool) {
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tick := time.NewTimer(dur)
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loop:
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for {
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select {
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case <-ctx.Done():
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break loop
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case <-tick.C:
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p.reBalance(ctx)
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tick.Reset(dur)
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}
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}
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p.close()
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tick.Stop()
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p.log.Info("connection worker stopped")
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}
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