add fgprof support

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/containerd/cgroups v0.0.0-20210114181951-8a68de567b68
 	github.com/docker/go-connections v0.4.0
 	github.com/edsrzf/mmap-go v1.0.0
+	github.com/felixge/fgprof v0.9.1
 	github.com/go-kit/kit v0.10.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/snappy v0.0.3

go.sum

@@ -331,6 +331,8 @@ github.com/evanphx/json-patch v4.9.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLi
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
+github.com/felixge/fgprof v0.9.1 h1:E6FUJ2Mlv043ipLOCFqo8+cHo9MhQ203E2cdEK/isEs=
+github.com/felixge/fgprof v0.9.1/go.mod h1:7/HK6JFtFaARhIljgP2IV8rJLIoHDoOYoUphsnGvqxE=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible h1:TcekIExNqud5crz4xD2pavyTgWiPvpYe4Xau31I0PRk=
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
@@ -575,11 +577,13 @@ github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
+github.com/google/pprof v0.0.0-20200615235658-03e1cf38a040/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20210122040257-d980be63207e/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20210226084205-cbba55b83ad5/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
+github.com/google/pprof v0.0.0-20210504235042-3a04a4d88a10 h1:wAh7XxYU1O92WP9JMsK0elU+haxEN0HTc2m/C89wQvk=
 github.com/google/pprof v0.0.0-20210504235042-3a04a4d88a10/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=

pkg/api/router.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/felixge/fgprof"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/prometheus/common/route"
@@ -105,6 +106,8 @@ func GenerateRouter(apiConf *Config, client *pgclient.Client, elector *util.Elec
 	router.Get("/debug/pprof/allocs", pprof.Handler("allocs").ServeHTTP)
 	router.Get("/debug/pprof/mutex", pprof.Handler("mutex").ServeHTTP)
 
+	router.Get("/debug/fgprof", fgprof.Handler().ServeHTTP)
+
 	return router, nil
 }