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add pprof endpoint

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Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit is contained in:
Kristoffer Dalby 2023-09-11 06:04:58 -05:00 committed by Kristoffer Dalby
parent 14f8c1ba34
commit 591ff8d347
1 changed files with 10 additions and 3 deletions
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13
hscontrol/app.go
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@ -8,8 +8,10 @@ import (
"io" "io"
"net" "net"
"net/http" "net/http"
_ "net/http/pprof" //nolint
"os" "os"
"os/signal" "os/signal"
"runtime"
"strconv" "strconv"
"strings" "strings"
"sync" "sync"
@ -19,7 +21,7 @@ import (
"github.com/coreos/go-oidc/v3/oidc" "github.com/coreos/go-oidc/v3/oidc"
"github.com/gorilla/mux" "github.com/gorilla/mux"
grpcMiddleware "github.com/grpc-ecosystem/go-grpc-middleware" grpcMiddleware "github.com/grpc-ecosystem/go-grpc-middleware"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime" grpcRuntime "github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"github.com/juanfont/headscale" "github.com/juanfont/headscale"
v1 "github.com/juanfont/headscale/gen/go/headscale/v1" v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
"github.com/juanfont/headscale/hscontrol/db" "github.com/juanfont/headscale/hscontrol/db"
@ -97,6 +99,10 @@ type Headscale struct {
} }
func NewHeadscale(cfg *types.Config) (*Headscale, error) { func NewHeadscale(cfg *types.Config) (*Headscale, error) {
if _, enableProfile := os.LookupEnv("HEADSCALE_PROFILING_ENABLED"); enableProfile {
runtime.SetBlockProfileRate(1)
}
privateKey, err := readOrCreatePrivateKey(cfg.PrivateKeyPath) privateKey, err := readOrCreatePrivateKey(cfg.PrivateKeyPath)
if err != nil { if err != nil {
return nil, fmt.Errorf("failed to read or create private key: %w", err) return nil, fmt.Errorf("failed to read or create private key: %w", err)
@ -437,8 +443,9 @@ func (h *Headscale) ensureUnixSocketIsAbsent() error {
return os.Remove(h.cfg.UnixSocket) return os.Remove(h.cfg.UnixSocket)
} }
func (h *Headscale) createRouter(grpcMux *runtime.ServeMux) *mux.Router { func (h *Headscale) createRouter(grpcMux *grpcRuntime.ServeMux) *mux.Router {
router := mux.NewRouter() router := mux.NewRouter()
router.PathPrefix("/debug/pprof/").Handler(http.DefaultServeMux)
router.HandleFunc(ts2021UpgradePath, h.NoiseUpgradeHandler).Methods(http.MethodPost) router.HandleFunc(ts2021UpgradePath, h.NoiseUpgradeHandler).Methods(http.MethodPost)
@ -545,7 +552,7 @@ func (h *Headscale) Serve() error {
return fmt.Errorf("failed change permission of gRPC socket: %w", err) return fmt.Errorf("failed change permission of gRPC socket: %w", err)
} }
grpcGatewayMux := runtime.NewServeMux() grpcGatewayMux := grpcRuntime.NewServeMux()
// Make the grpc-gateway connect to grpc over socket // Make the grpc-gateway connect to grpc over socket
grpcGatewayConn, err := grpc.Dial( grpcGatewayConn, err := grpc.Dial(