feat(internal): add profiling support with pyroscope

go.mod

@@ -6,7 +6,8 @@ toolchain go1.22.4
 
 require (
 	github.com/cilium/ebpf v0.16.0
-	github.com/prometheus/client_golang v1.20.3
+	github.com/grafana/pyroscope-go v1.2.0
+	github.com/prometheus/client_golang v1.20.4
 	google.golang.org/grpc v1.66.2
 	k8s.io/cri-api v0.31.1
 )
@@ -15,6 +16,7 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/grafana/pyroscope-go/godeltaprof v0.1.8 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect

go.sum

@@ -12,6 +12,10 @@ github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/grafana/pyroscope-go v1.2.0 h1:aILLKjTj8CS8f/24OPMGPewQSYlhmdQMBmol1d3KGj8=
+github.com/grafana/pyroscope-go v1.2.0/go.mod h1:2GHr28Nr05bg2pElS+dDsc98f3JTUh2f6Fz1hWXrqwk=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.8 h1:iwOtYXeeVSAeYefJNaxDytgjKtUuKQbJqgAIjlnicKg=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.8/go.mod h1:2+l7K7twW49Ct4wFluZD3tZ6e0SjanjcUUBPVD/UuGU=
 github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA=
 github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/jsimonetti/rtnetlink/v2 v2.0.1 h1:xda7qaHDSVOsADNouv7ukSuicKZO7GgVUCXxpaIEIlM=
@@ -34,8 +38,8 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.20.3 h1:oPksm4K8B+Vt35tUhw6GbSNSgVlVSBH0qELP/7u83l4=
-github.com/prometheus/client_golang v1.20.3/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
+github.com/prometheus/client_golang v1.20.4 h1:Tgh3Yr67PaOv/uTqloMsCEdeuFTatm5zIq5+qNN23vI=
+github.com/prometheus/client_golang v1.20.4/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
 github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
 github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
 github.com/prometheus/common v0.59.1 h1:LXb1quJHWm1P6wq/U824uxYi4Sg0oGvNeUm1z5dJoX0=
@@ -44,6 +48,8 @@ github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0leargg
 github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
 github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
+github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=

internal/app/app.go

@@ -48,6 +48,9 @@ func Run(
 	var enablePprof bool
 	flag.BoolVar(&enablePprof, "pprof", false, "Enable pprof")
 
+	var enableProfiling bool
+	flag.BoolVar(&enableProfiling, "profiling", false, "Enable profiling")
+
 	var prometheusPort uint64
 	flag.Uint64Var(
 		&prometheusPort,
@@ -58,6 +61,14 @@ func Run(
 
 	flag.Parse()
 
+	if enableProfiling {
+		log.Info("Profiling enabled")
+		err := profile.SetupProfiling(log)
+		if err != nil {
+			return fmt.Errorf("failed to setup profiling: %w", err)
+		}
+	}
+
 	if kubernetesMode {
 		if !workload.IsSocketPresent() {
 			return errors.New("runtime socket not found")

internal/profile/pyroscope.go

@@ -0,0 +1,53 @@
+package profile
+
+import (
+	"errors"
+	"fmt"
+	"log/slog"
+	"os"
+
+	"github.com/grafana/pyroscope-go"
+)
+
+func SetupProfiling(log *slog.Logger) error {
+	serverAddress := os.Getenv("PYROSCOPE_SERVER")
+	if serverAddress == "" {
+		return errors.New("PYROSCOPE_SERVER is not set")
+	}
+
+	user := os.Getenv("PYROSCOPE_USER")
+	if user == "" {
+		log.Warn("PYROSCOPE_USER is not set")
+	}
+
+	password := os.Getenv("PYROSCOPE_PASSWORD")
+	if password == "" {
+		log.Warn("PYROSCOPE_PASSWORD is not set")
+	}
+
+	_, err := pyroscope.Start(pyroscope.Config{
+		ApplicationName:   "bpfsnitch",
+		ServerAddress:     serverAddress,
+		BasicAuthUser:     user,
+		BasicAuthPassword: password,
+		Logger:            pyroscope.StandardLogger,
+		Tags:              map[string]string{"hostname": os.Getenv("HOSTNAME")},
+		ProfileTypes: []pyroscope.ProfileType{
+			pyroscope.ProfileCPU,
+			pyroscope.ProfileAllocObjects,
+			pyroscope.ProfileAllocSpace,
+			pyroscope.ProfileInuseObjects,
+			pyroscope.ProfileInuseSpace,
+			pyroscope.ProfileGoroutines,
+			pyroscope.ProfileMutexCount,
+			pyroscope.ProfileMutexDuration,
+			pyroscope.ProfileBlockCount,
+			pyroscope.ProfileBlockDuration,
+		},
+	})
+	if err != nil {
+		return fmt.Errorf("failed to start pyroscope: %w", err)
+	}
+
+	return nil
+}