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Split grpc and http

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This commit is contained in:
Kristoffer Dalby 2022-02-12 16:15:26 +00:00
parent 811d3d510c
commit bfc6f6e0eb
1 changed files with 47 additions and 58 deletions
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105
app.go
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@ -27,12 +27,9 @@ import (
zerolog "github.com/philip-bui/grpc-zerolog"
zl "github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/soheilhy/cmux"
ginprometheus "github.com/zsais/go-gin-prometheus"
"golang.org/x/crypto/acme"
"golang.org/x/crypto/acme/autocert"
"golang.org/x/net/http2"
"golang.org/x/net/http2/h2c"
"golang.org/x/oauth2"
"golang.org/x/sync/errgroup"
"google.golang.org/grpc"
@ -71,6 +68,7 @@ const (
type Config struct {
ServerURL string
Addr string
GRPCAddr string
EphemeralNodeInactivityTimeout time.Duration
IPPrefixes []netaddr.IPPrefix
PrivateKeyPath string
@ -518,8 +516,6 @@ func (h *Headscale) Serve() error {
defer cancel()
var networkListener net.Listener
tlsConfig, err := h.getTLSSettings()
if err != nil {
log.Error().Err(err).Msg("Failed to set up TLS configuration")
@ -527,35 +523,22 @@ func (h *Headscale) Serve() error {
return err
}
// if tlsConfig != nil {
// httpServer.TLSConfig = tlsConfig
// var httpListener net.Listener
//
// grpcOptions = append(grpcOptions, grpc.Creds(credentials.NewTLS(tlsConfig)))
// if tlsConfig != nil {
// httpListener, err = tls.Listen("tcp", h.cfg.Addr, tlsConfig)
// } else {
// httpListener, err = net.Listen("tcp", h.cfg.Addr)
// }
// if err != nil {
// return fmt.Errorf("failed to bind to TCP address: %w", err)
// }
//
if tlsConfig != nil {
networkListener, err = tls.Listen("tcp", h.cfg.Addr, tlsConfig)
} else {
networkListener, err = net.Listen("tcp", h.cfg.Addr)
}
if err != nil {
return fmt.Errorf("failed to bind to TCP address: %w", err)
}
// Create the cmux object that will multiplex 2 protocols on the same port.
// The two following listeners will be served on the same port below gracefully.
networkMutex := cmux.New(networkListener)
// Match gRPC requests here
grpcListener := networkMutex.MatchWithWriters(
cmux.HTTP2MatchHeaderFieldSendSettings("content-type", "application/grpc"),
cmux.HTTP2MatchHeaderFieldSendSettings(
"content-type",
"application/grpc+proto",
),
)
// Otherwise match regular http requests.
httpListener := networkMutex.Match(cmux.Any())
//
//
// gRPC setup
//
grpcGatewayMux := runtime.NewServeMux()
@ -578,21 +561,6 @@ func (h *Headscale) Serve() error {
return err
}
router := h.createRouter(grpcGatewayMux)
h2s := &http2.Server{}
httpServer := &http.Server{
Addr: h.cfg.Addr,
Handler: h2c.NewHandler(router, h2s),
ReadTimeout: HTTPReadTimeout,
// Go does not handle timeouts in HTTP very well, and there is
// no good way to handle streaming timeouts, therefore we need to
// keep this at unlimited and be careful to clean up connections
// https://blog.cloudflare.com/the-complete-guide-to-golang-net-http-timeouts/#aboutstreaming
WriteTimeout: 0,
}
grpcOptions := []grpc.ServerOption{
grpc.UnaryInterceptor(
grpc_middleware.ChainUnaryServer(
@ -612,22 +580,43 @@ func (h *Headscale) Serve() error {
reflection.Register(grpcServer)
reflection.Register(grpcSocket)
var grpcListener net.Listener
if tlsConfig != nil {
grpcListener, err = tls.Listen("tcp", h.cfg.GRPCAddr, tlsConfig)
} else {
grpcListener, err = net.Listen("tcp", h.cfg.GRPCAddr)
}
if err != nil {
return fmt.Errorf("failed to bind to TCP address: %w", err)
}
//
//
// HTTP setup
//
router := h.createRouter(grpcGatewayMux)
httpServer := &http.Server{
Addr: h.cfg.Addr,
Handler: router,
ReadTimeout: HTTPReadTimeout,
// Go does not handle timeouts in HTTP very well, and there is
// no good way to handle streaming timeouts, therefore we need to
// keep this at unlimited and be careful to clean up connections
// https://blog.cloudflare.com/the-complete-guide-to-golang-net-http-timeouts/#aboutstreaming
WriteTimeout: 0,
}
if tlsConfig != nil {
httpServer.TLSConfig = tlsConfig
}
errorGroup := new(errgroup.Group)
errorGroup.Go(func() error { return grpcSocket.Serve(socketListener) })
errorGroup.Go(func() error { return grpcServer.Serve(grpcListener) })
errorGroup.Go(func() error { return httpServer.Serve(httpListener) })
errorGroup.Go(func() error { return networkMutex.Serve() })
// if tlsConfig != nil {
// errorGroup.Go(func() error {
// tlsl := tls.NewListener(httpListener, tlsConfig)
//
// return httpServer.Serve(tlsl)
// })
// } else {
// errorGroup.Go(func() error { return httpServer.Serve(httpListener) })
// }
errorGroup.Go(func() error { return httpServer.ListenAndServe() })
log.Info().
Msgf("listening and serving (multiplexed HTTP and gRPC) on: %s", h.cfg.Addr)