feat: use shared redis client to maximize pooling usage (#39)

.gitignore

@@ -10,4 +10,4 @@
 /out
 .dockerconfigjson
 *.prof
-proxy.test
+*.test

Makefile

@@ -17,7 +17,8 @@ GOTEST_ARGS ?= -short
 OPENWRT_DEVICE ?= 192.168.1.1
 
 SIEGE_URLS_FILE ?= misc/siege/urls.txt
-SIEGE_CONCURRENCY ?= 100
+SIEGE_CONCURRENCY ?= 50
+SIEGE_DURATION ?= 1M
 
 data/bootstrap.d/dummy.yml:
 	mkdir -p data/bootstrap.d
@@ -114,7 +115,7 @@ grafterm: tools/grafterm/bin/grafterm
 siege:
 	$(eval TMP := $(shell mktemp))
 	cat $(SIEGE_URLS_FILE) | envsubst > $(TMP)
-	siege -i -b -c $(SIEGE_CONCURRENCY) -f $(TMP)
+	siege -R ./misc/siege/siege.conf -i -b -c $(SIEGE_CONCURRENCY) -t $(SIEGE_DURATION) -f $(TMP)
 	rm -rf $(TMP)
 
 tools/gitea-release/bin/gitea-release.sh:
@@ -131,7 +132,7 @@ tools/grafterm/bin/grafterm:
 	GOBIN=$(PWD)/tools/grafterm/bin go install github.com/slok/grafterm/cmd/grafterm@v0.2.0
 
 bench:
-	go test -bench=. -run '^$$' -count=10 ./...
+	go test -bench=. -run '^$$' ./internal/bench
 
 tools/benchstat/bin/benchstat:
 	mkdir -p tools/benchstat/bin
@@ -150,7 +151,7 @@ run-redis:
 		-v $(PWD)/data/redis:/data \
 		-p 6379:6379 \
 		redis:alpine3.17 \
-		redis-server --save 60 1 --loglevel warning
+		redis-server --save 60 1 --loglevel debug
 
 redis-shell:
 	docker exec -it \

doc/README.md

@@ -24,6 +24,7 @@
 - [(FR) - Ajouter une authentification OpenID Connect](./fr/tutorials/add-oidc-authn-layer.md)
 - [(FR) - Amorçage d'un serveur Bouncer via la configuration](./fr/tutorials/bootstrapping.md)
 - [(FR) - Intégration avec Kubernetes](./fr/tutorials/kubernetes-integration.md)
+- [(FR) - Profilage](./fr/tutorials/profiling.md)
 
 ### Développement
 

doc/fr/tutorials/profiling.md

@@ -1,31 +1,68 @@
 # Étudier les performances de Bouncer
 
-1. Lancer un benchmark du proxy
+## In situ
 
-   ```shell
-   go test -bench=. -run '^$' -count=5 -cpuprofile bench_proxy.prof ./internal/proxy
-   ```
+Il est possible d'activer via la configuration de Bouncer de endpoints capable de générer des fichiers de profil au format [`pprof`](https://github.com/google/pprof). Par défaut, le point d'entrée est `.bouncer/profiling` (l'activation et la personnalisation de ce point d'entrée sont modifiables via la [configuration](../../../misc/packaging/common/config.yml)).
 
-2. Visualiser les temps d'exécution
+**Exemple:** Visualiser l'utilisation mémoire de Bouncer
 
-   ```shell
-   go tool pprof -web bench_proxy.prof
-   ```
+```bash
+go tool pprof -web http://<bouncer_proxy>/.bouncer/profiling/heap
+```
 
-3. Comparer les performances d'une exécution à l'autre
+L'ensemble des profils disponibles sont visibles à l'adresse `http://<bouncer_proxy>/.bouncer/profiling`.
 
-   ```shell
-   # Lancer un premier benchmark
-   go test -bench=. -run '^$' -count=10 ./internal/proxy > bench_before.txt
+## En développement
 
-   # Faire des modifications sur les sources
+Le package `./internal` est dédié à l'étude des performances de Bouncer. Il contient une suite de benchmarks simulant de proxies avec différentes configurations de layers afin d'évaluer les points d'engorgement sur le traitement des requêtes.
 
-   # Lancer un second benchmark
-   go test -bench=. -run '^$' -count=10 ./internal/proxy > bench_after.txt
+Voir le répertoire `./internal/bench/testdata/proxies` pour voir les différentes configurations de cas.
 
-   # Installer l'outil benchstat
-   make tools/benchstat/bin/benchstat
+### Lancer les benchmarks
 
-   # Comparer les rapports
-   tools/benchstat/bin/benchstat bench_before.txt bench_after.txt
-   ```
+Le plus simple est d'utiliser la commande `make bench` qui exécutera séquentiellement tous les benchmarks. Il est également possible de lancer un benchmark spécifique via la commande suivante:
+
+```bash
+go test -bench="BenchmarkProxies/$BENCH_CASE" -run='^$'  ./internal/bench
+```
+
+Par exemple:
+
+```bash
+# Pour exécuter ./internal/bench/testdata/proxies/basic-auth.yml
+go test -bench='BenchmarkProxies/basic-auth' -run='^$'  ./internal/bench
+```
+
+### Visualiser les profils d'exécution
+
+Vous pouvez visualiser les profils d'exécution via la commande suivante:
+
+```shell
+go tool pprof -web path/to/file.prof
+```
+
+Par défaut l'exécution des benchmarks créera automatiquement des fichiers de profil dans le répertoire `./internal/bench/testdata/proxies`.
+
+Par exemple:
+
+```shell
+go tool pprof -web ./internal/bench/testdata/proxies/basic-auth.prof
+```
+
+### Comparer les évolutions
+
+```bash
+# Lancer un premier benchmark
+go test -bench="BenchmarkProxies/$BENCH_CASE" -run='^$'  ./internal/bench
+
+# Faire une sauvegarde du fichier de profil
+cp ./internal/bench/testdata/proxies/$BENCH_CASE.prof ./internal/bench/testdata/proxies/$BENCH_CASE-prev.prof
+
+# Faire des modifications sur les sources
+
+# Lancer un second benchmark
+go test -bench="BenchmarkProxies/$BENCH_CASE" -run='^$'  ./internal/bench
+
+# Visualiser la différence entre les deux profils
+go tool pprof -web -base=./internal/bench/testdata/proxies/$BENCH_CASE-prev.prof ./internal/bench/testdata/proxies/$BENCH_CASE.prof
+```

internal/admin/init.go

@@ -27,7 +27,7 @@ func (s *Server) initRepositories(ctx context.Context) error {
 }
 
 func (s *Server) initRedisClient(ctx context.Context) error {
-	client := setup.NewRedisClient(ctx, s.redisConfig)
+	client := setup.NewSharedClient(s.redisConfig)
 
 	s.redisClient = client
 

internal/admin/server.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"net/http/pprof"
 
 	"forge.cadoles.com/cadoles/bouncer/internal/auth"
 	"forge.cadoles.com/cadoles/bouncer/internal/auth/jwt"
@@ -155,6 +156,34 @@ func (s *Server) run(parentCtx context.Context, addrs chan net.Addr, errs chan e
 		})
 	}
 
+	if s.serverConfig.Profiling.Enabled {
+		profiling := s.serverConfig.Profiling
+		logger.Info(ctx, "enabling profiling", logger.F("endpoint", profiling.Endpoint))
+
+		router.Group(func(r chi.Router) {
+			if profiling.BasicAuth != nil {
+				logger.Info(ctx, "enabling authentication on metrics endpoint")
+
+				r.Use(middleware.BasicAuth(
+					"profiling",
+					profiling.BasicAuth.CredentialsMap(),
+				))
+			}
+
+			r.Route(string(profiling.Endpoint), func(r chi.Router) {
+				r.HandleFunc("/", pprof.Index)
+				r.HandleFunc("/cmdline", pprof.Cmdline)
+				r.HandleFunc("/profile", pprof.Profile)
+				r.HandleFunc("/symbol", pprof.Symbol)
+				r.HandleFunc("/trace", pprof.Trace)
+				r.HandleFunc("/{name}", func(w http.ResponseWriter, r *http.Request) {
+					name := chi.URLParam(r, "name")
+					pprof.Handler(name).ServeHTTP(w, r)
+				})
+			})
+		})
+	}
+
 	router.Route("/api/v1", func(r chi.Router) {
 		r.Group(func(r chi.Router) {
 			r.Use(auth.Middleware(

internal/bench/proxy_test.go

@@ -0,0 +1,300 @@
+package proxy_test
+
+import (
+	"context"
+	"io"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"net/http/httputil"
+	"net/url"
+	"os"
+	"path/filepath"
+	"runtime/pprof"
+	"strings"
+	"testing"
+	"time"
+
+	"forge.cadoles.com/Cadoles/go-proxy"
+	"forge.cadoles.com/cadoles/bouncer/internal/cache/memory"
+	"forge.cadoles.com/cadoles/bouncer/internal/cache/ttl"
+	"forge.cadoles.com/cadoles/bouncer/internal/config"
+	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
+	"forge.cadoles.com/cadoles/bouncer/internal/store"
+	redisStore "forge.cadoles.com/cadoles/bouncer/internal/store/redis"
+	"github.com/pkg/errors"
+	"github.com/redis/go-redis/v9"
+	"gopkg.in/yaml.v3"
+
+	"forge.cadoles.com/cadoles/bouncer/internal/setup"
+)
+
+func BenchmarkProxies(b *testing.B) {
+	proxyFiles, err := filepath.Glob("testdata/proxies/*.yml")
+	if err != nil {
+		b.Fatalf("%+v", errors.WithStack(err))
+	}
+
+	for _, f := range proxyFiles {
+		name := strings.TrimSuffix(filepath.Base(f), filepath.Ext(f))
+
+		b.Run(name, func(b *testing.B) {
+			conf, err := loadProxyBenchConfig(f)
+			if err != nil {
+				b.Fatalf("%+v", errors.Wrapf(err, "could notre load bench config"))
+			}
+
+			proxy, backend, err := createProxy(name, conf, b.Logf)
+			if err != nil {
+				b.Fatalf("%+v", errors.Wrapf(err, "could not create proxy"))
+			}
+
+			defer proxy.Close()
+
+			if backend != nil {
+				defer backend.Close()
+			}
+
+			client := proxy.Client()
+
+			proxyURL, err := url.Parse(proxy.URL)
+			if err != nil {
+				b.Fatalf("%+v", errors.Wrapf(err, "could not parse proxy url"))
+			}
+
+			if conf.Fetch.URL.Path != "" {
+				proxyURL.Path = conf.Fetch.URL.Path
+			}
+
+			if conf.Fetch.URL.RawQuery != "" {
+				proxyURL.RawQuery = conf.Fetch.URL.RawQuery
+			}
+
+			if conf.Fetch.URL.User.Username != "" || conf.Fetch.URL.User.Password != "" {
+				proxyURL.User = url.UserPassword(conf.Fetch.URL.User.Username, conf.Fetch.URL.User.Password)
+			}
+
+			rawProxyURL := proxyURL.String()
+
+			b.Logf("fetching url '%s'", rawProxyURL)
+
+			profile, err := os.Create(filepath.Join("testdata", "proxies", name+".prof"))
+			if err != nil {
+				b.Fatalf("%+v", errors.Wrapf(err, "could not create cpu profile"))
+			}
+
+			defer profile.Close()
+
+			if err := pprof.StartCPUProfile(profile); err != nil {
+				log.Fatal(err)
+			}
+
+			defer pprof.StopCPUProfile()
+
+			b.ResetTimer()
+
+			for i := 0; i < b.N; i++ {
+				res, err := client.Get(rawProxyURL)
+				if err != nil {
+					b.Errorf("could not fetch proxy url: %+v", errors.WithStack(err))
+				}
+
+				body, err := io.ReadAll(res.Body)
+				if err != nil {
+					b.Errorf("could not read response body: %+v", errors.WithStack(err))
+				}
+
+				b.Logf("%s \n %v", res.Status, string(body))
+
+				if err := res.Body.Close(); err != nil {
+					b.Errorf("could not close response body: %+v", errors.WithStack(err))
+				}
+			}
+		})
+	}
+}
+
+type proxyBenchConfig struct {
+	Proxy config.BootstrapProxyConfig `yaml:"proxy"`
+	Fetch fetchBenchConfig            `yaml:"fetch"`
+}
+
+type fetchBenchConfig struct {
+	URL fetchURLBenchConfig `yaml:"url"`
+}
+
+type fetchURLBenchConfig struct {
+	Path     string                  `yaml:"path"`
+	RawQuery string                  `yaml:"rawQuery"`
+	User     fetchURLUserBenchConfig `yaml:"user"`
+}
+
+type fetchURLUserBenchConfig struct {
+	Username string `yaml:"username"`
+	Password string `yaml:"password"`
+}
+
+func loadProxyBenchConfig(filename string) (*proxyBenchConfig, error) {
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read file '%s'", filename)
+	}
+
+	conf := proxyBenchConfig{}
+
+	if err := yaml.Unmarshal(data, &conf); err != nil {
+		return nil, errors.Wrapf(err, "could not unmarshal config")
+	}
+
+	return &conf, nil
+}
+
+func createProxy(name string, conf *proxyBenchConfig, logf func(format string, a ...any)) (*httptest.Server, *httptest.Server, error) {
+	redisEndpoint := os.Getenv("BOUNCER_BENCH_REDIS_ADDR")
+	if redisEndpoint == "" {
+		redisEndpoint = "127.0.0.1:6379"
+	}
+
+	client := redis.NewUniversalClient(&redis.UniversalOptions{
+		Addrs: []string{redisEndpoint},
+	})
+
+	proxyRepository := redisStore.NewProxyRepository(client, redisStore.DefaultTxMaxAttempts, redisStore.DefaultTxBaseDelay)
+	layerRepository := redisStore.NewLayerRepository(client, redisStore.DefaultTxMaxAttempts, redisStore.DefaultTxBaseDelay)
+
+	var backend *httptest.Server
+
+	if conf.Proxy.To == "" {
+		backend = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			w.WriteHeader(http.StatusOK)
+			if _, err := w.Write([]byte("Hello, world.")); err != nil {
+				logf("[ERROR] %+v", errors.WithStack(err))
+			}
+		}))
+
+		if err := waitFor(backend.URL, 5*time.Second); err != nil {
+			return nil, nil, errors.WithStack(err)
+		}
+
+		logf("started backend '%s'", backend.URL)
+	}
+
+	ctx := context.Background()
+
+	proxyName := store.ProxyName("bench-" + name)
+
+	proxies, err := proxyRepository.QueryProxy(ctx)
+	if err != nil {
+		return nil, nil, errors.WithStack(err)
+	}
+
+	// Cleanup existing proxies
+	for _, p := range proxies {
+		if err := proxyRepository.DeleteProxy(ctx, p.Name); err != nil {
+			return nil, nil, errors.WithStack(err)
+		}
+	}
+
+	logf("creating proxy '%s'", proxyName)
+
+	to := string(conf.Proxy.To)
+	if to == "" {
+		to = backend.URL
+	}
+
+	if _, err := proxyRepository.CreateProxy(ctx, proxyName, to, conf.Proxy.From...); err != nil {
+		return nil, nil, errors.WithStack(err)
+	}
+
+	if _, err := proxyRepository.UpdateProxy(ctx, proxyName, store.WithProxyUpdateEnabled(true)); err != nil {
+		return nil, nil, errors.WithStack(err)
+	}
+
+	for layerName, layerConf := range conf.Proxy.Layers {
+		if err := layerRepository.DeleteLayer(ctx, proxyName, store.LayerName(layerName)); err != nil {
+			return nil, nil, errors.WithStack(err)
+		}
+
+		_, err := layerRepository.CreateLayer(ctx, proxyName, store.LayerName(layerName), store.LayerType(layerConf.Type), layerConf.Options.Data)
+		if err != nil {
+			return nil, nil, errors.WithStack(err)
+		}
+
+		_, err = layerRepository.UpdateLayer(ctx, proxyName, store.LayerName(layerName), store.WithLayerUpdateEnabled(bool(layerConf.Enabled)))
+		if err != nil {
+			return nil, nil, errors.WithStack(err)
+		}
+
+	}
+
+	layers, err := setup.GetLayers(context.Background(), config.NewDefault())
+	if err != nil {
+		return nil, nil, errors.WithStack(err)
+	}
+
+	director := director.New(
+		proxyRepository, layerRepository,
+		director.WithLayerCache(
+			ttl.NewCache(
+				memory.NewCache[string, []*store.Layer](),
+				memory.NewCache[string, time.Time](),
+				30*time.Second,
+			),
+		),
+		director.WithProxyCache(
+			ttl.NewCache(
+				memory.NewCache[string, []*store.Proxy](),
+				memory.NewCache[string, time.Time](),
+				30*time.Second,
+			),
+		),
+		director.WithLayers(layers...),
+	)
+
+	directorMiddleware := director.Middleware()
+
+	handler := proxy.New(
+		proxy.WithRequestTransformers(
+			director.RequestTransformer(),
+		),
+		proxy.WithResponseTransformers(
+			director.ResponseTransformer(),
+		),
+		proxy.WithReverseProxyFactory(func(ctx context.Context, target *url.URL) *httputil.ReverseProxy {
+			reverse := httputil.NewSingleHostReverseProxy(target)
+			reverse.ErrorHandler = func(w http.ResponseWriter, r *http.Request, err error) {
+				logf("[ERROR] %s", errors.WithStack(err))
+			}
+			return reverse
+		}),
+	)
+
+	server := httptest.NewServer(directorMiddleware(handler))
+
+	return server, backend, nil
+}
+
+func waitFor(url string, ttl time.Duration) error {
+	var lastErr error
+	timeout := time.After(ttl)
+	for {
+		select {
+		case <-timeout:
+			if lastErr != nil {
+				return lastErr
+			}
+
+			return errors.New("wait timed out")
+		default:
+			res, err := http.Get(url)
+			if err != nil {
+				lastErr = errors.WithStack(err)
+				continue
+			}
+
+			if res.StatusCode >= 200 && res.StatusCode < 400 {
+				return nil
+			}
+		}
+	}
+}

internal/bench/testdata/proxies/basic-auth.yml

@@ -0,0 +1,20 @@
+proxy:
+  from: ["*"]
+  to: ""
+  layers:
+    basic-auth:
+      type: authn-basic
+      enabled: true
+      options:
+        users:
+          - username: foo
+            passwordHash: "$2y$10$ShTc856wMB8PCxyr46qJRO8z06MpV4UejAVRDJ/bixhu0XTGn7Giy"
+            attributes:
+              email: foo@bar.com
+        rules:
+          - set_header("Remote-User-Attr-Email", user.attrs.email)
+fetch:
+  url:
+    user:
+      username: foo
+      password: bar

internal/bench/testdata/proxies/noop.yml

@@ -0,0 +1,3 @@
+proxy:
+  from: ["*"]
+  to: ""

internal/bench/testdata/proxies/rewriter.yml

@@ -0,0 +1,12 @@
+proxy:
+  from: ["*"]
+  to: ""
+  layers:
+    host-rewriter:
+      type: rewriter
+      enabled: true
+      options:
+        rules:
+          request:
+            - set_host(request.url.host)
+            - set_header("X-Proxied-With", "bouncer")

internal/command/server/admin/run.go

@@ -35,12 +35,15 @@ func RunCommand() *cli.Command {
 			logger.SetLevel(logger.Level(conf.Logger.Level))
 
 			projectVersion := ctx.String("projectVersion")
-			flushSentry, err := setup.SetupSentry(ctx.Context, conf.Admin.Sentry, projectVersion)
-			if err != nil {
-				return errors.Wrap(err, "could not initialize sentry client")
-			}
 
-			defer flushSentry()
+			if conf.Proxy.Sentry.DSN != "" {
+				flushSentry, err := setup.SetupSentry(ctx.Context, conf.Proxy.Sentry, projectVersion)
+				if err != nil {
+					return errors.Wrap(err, "could not initialize sentry client")
+				}
+
+				defer flushSentry()
+			}
 
 			integrations, err := setup.SetupIntegrations(ctx.Context, conf)
 			if err != nil {

internal/command/server/proxy/run.go

@@ -30,12 +30,15 @@ func RunCommand() *cli.Command {
 			logger.SetLevel(logger.Level(conf.Logger.Level))
 
 			projectVersion := ctx.String("projectVersion")
-			flushSentry, err := setup.SetupSentry(ctx.Context, conf.Proxy.Sentry, projectVersion)
-			if err != nil {
-				return errors.Wrap(err, "could not initialize sentry client")
-			}
 
-			defer flushSentry()
+			if conf.Proxy.Sentry.DSN != "" {
+				flushSentry, err := setup.SetupSentry(ctx.Context, conf.Proxy.Sentry, projectVersion)
+				if err != nil {
+					return errors.Wrap(err, "could not initialize sentry client")
+				}
+
+				defer flushSentry()
+			}
 
 			layers, err := setup.GetLayers(ctx.Context, conf)
 			if err != nil {

internal/config/admin_server.go

@@ -1,20 +1,22 @@
 package config
 
 type AdminServerConfig struct {
-	HTTP    HTTPConfig    `yaml:"http"`
-	CORS    CORSConfig    `yaml:"cors"`
-	Auth    AuthConfig    `yaml:"auth"`
-	Metrics MetricsConfig `yaml:"metrics"`
-	Sentry  SentryConfig  `yaml:"sentry"`
+	HTTP      HTTPConfig      `yaml:"http"`
+	CORS      CORSConfig      `yaml:"cors"`
+	Auth      AuthConfig      `yaml:"auth"`
+	Metrics   MetricsConfig   `yaml:"metrics"`
+	Profiling ProfilingConfig `yaml:"profiling"`
+	Sentry    SentryConfig    `yaml:"sentry"`
 }
 
 func NewDefaultAdminServerConfig() AdminServerConfig {
 	return AdminServerConfig{
-		HTTP:    NewHTTPConfig("127.0.0.1", 8081),
-		CORS:    NewDefaultCORSConfig(),
-		Auth:    NewDefaultAuthConfig(),
-		Metrics: NewDefaultMetricsConfig(),
-		Sentry:  NewDefaultSentryConfig(),
+		HTTP:      NewHTTPConfig("127.0.0.1", 8081),
+		CORS:      NewDefaultCORSConfig(),
+		Auth:      NewDefaultAuthConfig(),
+		Metrics:   NewDefaultMetricsConfig(),
+		Sentry:    NewDefaultSentryConfig(),
+		Profiling: NewDefaultProfilingConfig(),
 	}
 }
 

internal/config/bootstrap.go

@@ -80,24 +80,33 @@ func loadBootstrapDir(dir string) (map[store.ProxyName]BootstrapProxyConfig, err
 
 	proxies := make(map[store.ProxyName]BootstrapProxyConfig)
 	for _, f := range files {
-		data, err := os.ReadFile(f)
+		proxy, err := loadBootstrappedProxyConfig(f)
 		if err != nil {
-			return nil, errors.Wrapf(err, "could not read file '%s'", f)
-		}
-
-		proxy := BootstrapProxyConfig{}
-
-		if err := yaml.Unmarshal(data, &proxy); err != nil {
-			return nil, errors.Wrapf(err, "could not unmarshal proxy")
+			return nil, errors.Wrapf(err, "could not load proxy bootstrap file '%s'", f)
 		}
 
 		name := store.ProxyName(strings.TrimSuffix(filepath.Base(f), filepath.Ext(f)))
-		proxies[name] = proxy
+		proxies[name] = *proxy
 	}
 
 	return proxies, nil
 }
 
+func loadBootstrappedProxyConfig(filename string) (*BootstrapProxyConfig, error) {
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read file '%s'", filename)
+	}
+
+	proxy := BootstrapProxyConfig{}
+
+	if err := yaml.Unmarshal(data, &proxy); err != nil {
+		return nil, errors.Wrapf(err, "could not unmarshal proxy")
+	}
+
+	return &proxy, nil
+}
+
 func overrideProxies(base map[store.ProxyName]BootstrapProxyConfig, proxies map[store.ProxyName]BootstrapProxyConfig) map[store.ProxyName]BootstrapProxyConfig {
 	for name, proxy := range proxies {
 		base[name] = proxy

internal/config/environment.go

@@ -127,7 +127,7 @@ func (im *InterpolatedMap) UnmarshalYAML(value *yaml.Node) error {
 	return nil
 }
 
-func (im *InterpolatedMap) interpolateRecursive(data any) (any, error) {
+func (im InterpolatedMap) interpolateRecursive(data any) (any, error) {
 	switch typ := data.(type) {
 	case map[string]any:
 		for key, value := range typ {

internal/config/profiling.go

@@ -0,0 +1,15 @@
+package config
+
+type ProfilingConfig struct {
+	Enabled   InterpolatedBool   `yaml:"enabled"`
+	Endpoint  InterpolatedString `yaml:"endpoint"`
+	BasicAuth *BasicAuthConfig   `yaml:"basicAuth"`
+}
+
+func NewDefaultProfilingConfig() ProfilingConfig {
+	return ProfilingConfig{
+		Enabled:   true,
+		Endpoint:  "/.bouncer/profiling",
+		BasicAuth: nil,
+	}
+}

internal/config/proxy_server.go

@@ -10,6 +10,7 @@ type ProxyServerConfig struct {
 	Debug     InterpolatedBool `yaml:"debug"`
 	HTTP      HTTPConfig       `yaml:"http"`
 	Metrics   MetricsConfig    `yaml:"metrics"`
+	Profiling ProfilingConfig  `yaml:"profiling"`
 	Transport TransportConfig  `yaml:"transport"`
 	Dial      DialConfig       `yaml:"dial"`
 	Sentry    SentryConfig     `yaml:"sentry"`
@@ -27,6 +28,7 @@ func NewDefaultProxyServerConfig() ProxyServerConfig {
 		Sentry:    NewDefaultSentryConfig(),
 		Cache:     NewDefaultCacheConfig(),
 		Templates: NewDefaultTemplatesConfig(),
+		Profiling: NewDefaultProfilingConfig(),
 	}
 }
 

internal/config/redis.go

@@ -15,6 +15,8 @@ type RedisConfig struct {
 	WriteTimeout   InterpolatedDuration    `yaml:"writeTimeout"`
 	DialTimeout    InterpolatedDuration    `yaml:"dialTimeout"`
 	LockMaxRetries InterpolatedInt         `yaml:"lockMaxRetries"`
+	MaxRetries     InterpolatedInt         `yaml:"maxRetries"`
+	PingInterval   InterpolatedDuration    `yaml:"pingInterval"`
 }
 
 func NewDefaultRedisConfig() RedisConfig {
@@ -25,5 +27,7 @@ func NewDefaultRedisConfig() RedisConfig {
 		WriteTimeout:   InterpolatedDuration(30 * time.Second),
 		DialTimeout:    InterpolatedDuration(30 * time.Second),
 		LockMaxRetries: 10,
+		MaxRetries:     3,
+		PingInterval:   InterpolatedDuration(30 * time.Second),
 	}
 }

internal/config/sentry.go

@@ -28,10 +28,10 @@ func NewDefaultSentryConfig() SentryConfig {
 		Debug:              false,
 		FlushTimeout:       NewInterpolatedDuration(2 * time.Second),
 		AttachStacktrace:   true,
-		SampleRate:         1,
+		SampleRate:         0.2,
 		EnableTracing:      true,
 		TracesSampleRate:   0.2,
-		ProfilesSampleRate: 1,
+		ProfilesSampleRate: 0.2,
 		IgnoreErrors:       []string{},
 		SendDefaultPII:     false,
 		ServerName:         "",

internal/proxy/director/layer/queue/queue.go

@@ -65,7 +65,7 @@ func (q *Queue) Middleware(layer *store.Layer) proxy.Middleware {
 				return
 			}
 
-			defer q.updateMetrics(ctx, layer.Proxy, layer.Name, options)
+			defer q.updateMetrics(layer.Proxy, layer.Name, options)
 
 			cookieName := q.getCookieName(layer.Name)
 
@@ -217,7 +217,9 @@ func (q *Queue) refreshQueue(ctx context.Context, layerName store.LayerName, kee
 	}
 }
 
-func (q *Queue) updateMetrics(ctx context.Context, proxyName store.ProxyName, layerName store.LayerName, options *LayerOptions) {
+func (q *Queue) updateMetrics(proxyName store.ProxyName, layerName store.LayerName, options *LayerOptions) {
+	ctx := context.Background()
+
 	// Update queue capacity metric
 	metricQueueCapacity.With(
 		prometheus.Labels{

internal/proxy/init.go

@@ -9,7 +9,7 @@ import (
 )
 
 func (s *Server) initRepositories(ctx context.Context) error {
-	client := setup.NewRedisClient(ctx, s.redisConfig)
+	client := setup.NewSharedClient(s.redisConfig)
 
 	if err := s.initProxyRepository(ctx, client); err != nil {
 		return errors.WithStack(err)

internal/proxy/proxy_test.go

@@ -1,156 +0,0 @@
-package proxy_test
-
-import (
-	"context"
-	"io"
-	"net/http"
-	"net/http/httptest"
-	"net/http/httputil"
-	"net/url"
-	"os"
-	"testing"
-	"time"
-
-	"forge.cadoles.com/Cadoles/go-proxy"
-	"forge.cadoles.com/cadoles/bouncer/internal/cache/memory"
-	"forge.cadoles.com/cadoles/bouncer/internal/cache/ttl"
-	"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
-	"forge.cadoles.com/cadoles/bouncer/internal/store"
-	redisStore "forge.cadoles.com/cadoles/bouncer/internal/store/redis"
-	"github.com/pkg/errors"
-	"github.com/redis/go-redis/v9"
-)
-
-func BenchmarkProxy(b *testing.B) {
-	redisEndpoint := os.Getenv("BOUNCER_BENCH_REDIS_ADDR")
-	if redisEndpoint == "" {
-		redisEndpoint = "127.0.0.1:6379"
-	}
-
-	client := redis.NewUniversalClient(&redis.UniversalOptions{
-		Addrs: []string{redisEndpoint},
-	})
-
-	proxyRepository := redisStore.NewProxyRepository(client, redisStore.DefaultTxMaxAttempts, redisStore.DefaultTxBaseDelay)
-	layerRepository := redisStore.NewLayerRepository(client, redisStore.DefaultTxMaxAttempts, redisStore.DefaultTxBaseDelay)
-
-	backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		if _, err := w.Write([]byte("Hello, world.")); err != nil {
-			b.Logf("[ERROR] %+v", errors.WithStack(err))
-		}
-	}))
-	defer backend.Close()
-
-	if err := waitFor(backend.URL, 5*time.Second); err != nil {
-		b.Fatalf("[FATAL] %+v", errors.WithStack(err))
-	}
-
-	b.Logf("started backend '%s'", backend.URL)
-
-	ctx := context.Background()
-
-	proxyName := store.ProxyName(b.Name())
-
-	b.Logf("creating proxy '%s'", proxyName)
-
-	if err := proxyRepository.DeleteProxy(ctx, proxyName); err != nil {
-		b.Fatalf("[FATAL] %+v", errors.WithStack(err))
-	}
-
-	if _, err := proxyRepository.CreateProxy(ctx, proxyName, backend.URL, "*"); err != nil {
-		b.Fatalf("[FATAL] %+v", errors.WithStack(err))
-	}
-
-	if _, err := proxyRepository.UpdateProxy(ctx, proxyName, store.WithProxyUpdateEnabled(true)); err != nil {
-		b.Fatalf("[FATAL] %+v", errors.WithStack(err))
-	}
-
-	director := director.New(
-		proxyRepository, layerRepository,
-		director.WithLayerCache(
-			ttl.NewCache(
-				memory.NewCache[string, []*store.Layer](),
-				memory.NewCache[string, time.Time](),
-				30*time.Second,
-			),
-		),
-		director.WithProxyCache(
-			ttl.NewCache(
-				memory.NewCache[string, []*store.Proxy](),
-				memory.NewCache[string, time.Time](),
-				30*time.Second,
-			),
-		),
-	)
-
-	directorMiddleware := director.Middleware()
-
-	handler := proxy.New(
-		proxy.WithRequestTransformers(
-			director.RequestTransformer(),
-		),
-		proxy.WithResponseTransformers(
-			director.ResponseTransformer(),
-		),
-		proxy.WithReverseProxyFactory(func(ctx context.Context, target *url.URL) *httputil.ReverseProxy {
-			reverse := httputil.NewSingleHostReverseProxy(target)
-			reverse.ErrorHandler = func(w http.ResponseWriter, r *http.Request, err error) {
-				b.Logf("[ERROR] %s", errors.WithStack(err))
-			}
-			return reverse
-		}),
-	)
-
-	server := httptest.NewServer(directorMiddleware(handler))
-	defer server.Close()
-
-	b.Logf("started proxy '%s'", server.URL)
-
-	httpClient := server.Client()
-
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		res, err := httpClient.Get(server.URL)
-		if err != nil {
-			b.Errorf("could not fetch server url: %+v", errors.WithStack(err))
-		}
-
-		body, err := io.ReadAll(res.Body)
-		if err != nil {
-			b.Errorf("could not read response body: %+v", errors.WithStack(err))
-		}
-
-		b.Logf("%s - %v", res.Status, string(body))
-
-		if err := res.Body.Close(); err != nil {
-			b.Errorf("could not close response body: %+v", errors.WithStack(err))
-		}
-	}
-}
-
-func waitFor(url string, ttl time.Duration) error {
-	var lastErr error
-	timeout := time.After(ttl)
-	for {
-		select {
-		case <-timeout:
-			if lastErr != nil {
-				return lastErr
-			}
-
-			return errors.New("wait timed out")
-		default:
-			res, err := http.Get(url)
-			if err != nil {
-				lastErr = errors.WithStack(err)
-				continue
-			}
-
-			if res.StatusCode >= 200 && res.StatusCode < 400 {
-				return nil
-			}
-		}
-	}
-}

internal/proxy/server.go

@@ -8,6 +8,7 @@ import (
 	"net"
 	"net/http"
 	"net/http/httputil"
+	"net/http/pprof"
 	"net/url"
 	"path/filepath"
 	"strconv"
@@ -146,6 +147,34 @@ func (s *Server) run(parentCtx context.Context, addrs chan net.Addr, errs chan e
 		})
 	}
 
+	if s.serverConfig.Profiling.Enabled {
+		profiling := s.serverConfig.Profiling
+		logger.Info(ctx, "enabling profiling", logger.F("endpoint", profiling.Endpoint))
+
+		router.Group(func(r chi.Router) {
+			if profiling.BasicAuth != nil {
+				logger.Info(ctx, "enabling authentication on metrics endpoint")
+
+				r.Use(middleware.BasicAuth(
+					"profiling",
+					profiling.BasicAuth.CredentialsMap(),
+				))
+			}
+
+			r.Route(string(profiling.Endpoint), func(r chi.Router) {
+				r.HandleFunc("/", pprof.Index)
+				r.HandleFunc("/cmdline", pprof.Cmdline)
+				r.HandleFunc("/profile", pprof.Profile)
+				r.HandleFunc("/symbol", pprof.Symbol)
+				r.HandleFunc("/trace", pprof.Trace)
+				r.HandleFunc("/{name}", func(w http.ResponseWriter, r *http.Request) {
+					name := chi.URLParam(r, "name")
+					pprof.Handler(name).ServeHTTP(w, r)
+				})
+			})
+		})
+	}
+
 	router.Group(func(r chi.Router) {
 		r.Use(director.Middleware())
 

internal/setup/authn_oidc_layer.go

@@ -23,7 +23,7 @@ func init() {
 }
 
 func setupAuthnOIDCLayer(conf *config.Config) (director.Layer, error) {
-	rdb := newRedisClient(conf.Redis)
+	rdb := NewSharedClient(conf.Redis)
 	adapter := redis.NewStoreAdapter(rdb)
 	store := session.NewStore(adapter)
 

internal/setup/integrations.go

@@ -27,7 +27,7 @@ func SetupIntegrations(ctx context.Context, conf *config.Config) ([]integration.
 }
 
 func setupKubernetesIntegration(ctx context.Context, conf *config.Config) (*kubernetes.Integration, error) {
-	client := newRedisClient(conf.Redis)
+	client := NewSharedClient(conf.Redis)
 	locker := redis.NewLocker(client, 10)
 
 	integration := kubernetes.NewIntegration(

internal/setup/lock.go

@@ -9,7 +9,7 @@ import (
 )
 
 func SetupLocker(ctx context.Context, conf *config.Config) (lock.Locker, error) {
-	client := newRedisClient(conf.Redis)
+	client := NewSharedClient(conf.Redis)
 	locker := redis.NewLocker(client, int(conf.Redis.LockMaxRetries))
 	return locker, nil
 }

internal/setup/proxy_repository.go

@@ -3,19 +3,11 @@ package setup
 import (
 	"context"
 
-	"forge.cadoles.com/cadoles/bouncer/internal/config"
 	"forge.cadoles.com/cadoles/bouncer/internal/store"
 	redisStore "forge.cadoles.com/cadoles/bouncer/internal/store/redis"
 	"github.com/redis/go-redis/v9"
 )
 
-func NewRedisClient(ctx context.Context, conf config.RedisConfig) redis.UniversalClient {
-	return redis.NewUniversalClient(&redis.UniversalOptions{
-		Addrs:      conf.Adresses,
-		MasterName: string(conf.Master),
-	})
-}
-
 func NewProxyRepository(ctx context.Context, client redis.UniversalClient) (store.ProxyRepository, error) {
 	return redisStore.NewProxyRepository(client, redisStore.DefaultTxMaxAttempts, redisStore.DefaultTxBaseDelay), nil
 }

internal/setup/queue_layer.go

@@ -35,6 +35,6 @@ func setupQueueLayer(conf *config.Config) (director.Layer, error) {
 }
 
 func newQueueAdapter(redisConf config.RedisConfig) (queue.Adapter, error) {
-	rdb := newRedisClient(redisConf)
+	rdb := NewSharedClient(redisConf)
 	return queueRedis.NewAdapter(rdb, 2), nil
 }

internal/setup/redis.go

@@ -1,14 +1,38 @@
 package setup
 
 import (
+	"context"
+	"strings"
+	"sync"
 	"time"
 
 	"forge.cadoles.com/cadoles/bouncer/internal/config"
+	"github.com/pkg/errors"
 	"github.com/redis/go-redis/v9"
+	"gitlab.com/wpetit/goweb/logger"
 )
 
+var clients sync.Map
+
+func NewSharedClient(conf config.RedisConfig) redis.UniversalClient {
+	key := strings.Join(conf.Adresses, "|") + "|" + string(conf.Master)
+
+	value, exists := clients.Load(key)
+	if exists {
+		if client, ok := (value).(redis.UniversalClient); ok {
+			return client
+		}
+	}
+
+	client := newRedisClient(conf)
+
+	clients.Store(key, client)
+
+	return client
+}
+
 func newRedisClient(conf config.RedisConfig) redis.UniversalClient {
-	return redis.NewUniversalClient(&redis.UniversalOptions{
+	client := redis.NewUniversalClient(&redis.UniversalOptions{
 		Addrs:                 conf.Adresses,
 		MasterName:            string(conf.Master),
 		ReadTimeout:           time.Duration(conf.ReadTimeout),
@@ -16,5 +40,33 @@ func newRedisClient(conf config.RedisConfig) redis.UniversalClient {
 		DialTimeout:           time.Duration(conf.DialTimeout),
 		RouteByLatency:        true,
 		ContextTimeoutEnabled: true,
+		MaxRetries:            int(conf.MaxRetries),
 	})
+
+	go func() {
+		ctx := logger.With(context.Background(),
+			logger.F("adresses", conf.Adresses),
+			logger.F("master", conf.Master),
+		)
+
+		timer := time.NewTicker(time.Duration(conf.PingInterval))
+		defer timer.Stop()
+
+		connected := true
+
+		for range timer.C {
+			if _, err := client.Ping(ctx).Result(); err != nil {
+				logger.Error(ctx, "redis disconnected", logger.E(errors.WithStack(err)))
+				connected = false
+				continue
+			}
+
+			if !connected {
+				logger.Info(ctx, "redis reconnected")
+				connected = true
+			}
+		}
+	}()
+
+	return client
 }

internal/store/redis/helper.go

@@ -91,12 +91,14 @@ func WithRetry(ctx context.Context, client redis.UniversalClient, key string, fn
 				continue
 			}
 
-			return err
+			return errors.WithStack(err)
 		}
 
 		return nil
 	}
 
+	logger.Error(ctx, "redis error", logger.E(errors.WithStack(err)))
+
 	return errors.WithStack(redis.TxFailedErr)
 }
 

internal/store/redis/layer_repository.go

@@ -36,7 +36,7 @@ func (r *LayerRepository) CreateLayer(ctx context.Context, proxyName store.Proxy
 
 		CreatedAt: wrap(now),
 		UpdatedAt: wrap(now),
-		Options:   wrap(store.LayerOptions{}),
+		Options:   wrap(options),
 	}
 
 	txf := func(tx *redis.Tx) error {
@@ -60,6 +60,11 @@ func (r *LayerRepository) CreateLayer(ctx context.Context, proxyName store.Proxy
 			return errors.WithStack(err)
 		}
 
+		layerItem, err = r.txGetLayerItem(ctx, tx, proxyName, layerName)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+
 		return nil
 	}
 
@@ -70,16 +75,16 @@ func (r *LayerRepository) CreateLayer(ctx context.Context, proxyName store.Proxy
 
 	return &store.Layer{
 		LayerHeader: store.LayerHeader{
-			Name:    layerName,
-			Proxy:   proxyName,
-			Type:    layerType,
-			Weight:  0,
-			Enabled: false,
+			Name:    store.LayerName(layerItem.Name),
+			Proxy:   store.ProxyName(layerItem.Proxy),
+			Type:    store.LayerType(layerItem.Type),
+			Weight:  layerItem.Weight,
+			Enabled: layerItem.Enabled,
 		},
 
-		CreatedAt: now,
-		UpdatedAt: now,
-		Options:   store.LayerOptions{},
+		CreatedAt: layerItem.CreatedAt.Value(),
+		UpdatedAt: layerItem.UpdatedAt.Value(),
+		Options:   layerItem.Options.Value(),
 	}, nil
 }
 

misc/packaging/common/config.yml

@@ -49,6 +49,19 @@ admin:
     # Mettre à null pour désactiver l'authentification
     basicAuth: null
 
+  # Profiling
+  profiling:
+    # Activer ou désactiver les endpoints de profiling
+    enabled: true
+    # Route de publication des endpoints de profiling
+    endpoint: /.bouncer/profiling
+    # Authentification "basic auth" sur les endpoints
+    # de profiling
+    # Mettre à null pour désactiver l'authentification
+    basicAuth:
+      credentials:
+        prof: iling
+
   # Configuration de l'intégration Sentry
   # Voir https://pkg.go.dev/github.com/getsentry/sentry-go?utm_source=godoc#ClientOptions
   sentry:
@@ -59,7 +72,7 @@ admin:
     sampleRate: 1
     enableTracing: true
     tracesSampleRate: 0.2
-    profilesSampleRate: 1
+    profilesSampleRate: 0.2
     ignoreErrors: []
     sendDefaultPII: false
     serverName: ""
@@ -99,6 +112,19 @@ proxy:
       credentials:
         prom: etheus
 
+  # Profiling
+  profiling:
+    # Activer ou désactiver les endpoints de profiling
+    enabled: true
+    # Route de publication des endpoints de profiling
+    endpoint: /.bouncer/profiling
+    # Authentification "basic auth" sur les endpoints
+    # de profiling
+    # Mettre à null pour désactiver l'authentification
+    basicAuth:
+      credentials:
+        prof: iling
+
   # Configuration de la mise en cache
   # locale des données proxy/layers
   cache:
@@ -164,6 +190,8 @@ redis:
   writeTimeout: 30s
   readTimeout: 30s
   dialTimeout: 30s
+  maxRetries: 3
+  pingInterval: 30s
 
 # Configuration des logs
 logger:

misc/siege/siege.conf

@@ -0,0 +1,79 @@
+# Updated by Siege %_VERSION%, %_DATE%
+# Copyright 2000-2016 by %_AUTHOR%
+# 
+# Siege configuration file -- edit as necessary
+# For more information about configuring and running this program, 
+# visit: http://www.joedog.org/
+
+#
+#
+# Verbose mode: With this feature enabled, siege will print the
+# result of each transaction to stdout. (Enabled by default)
+#
+# ex: verbose = true|false
+#
+verbose = true
+
+#
+# Color mode: This option works in conjunction with verbose mode.
+# It tells siege whether or not it should display its output in
+# color-coded output. (Enabled by default)
+#
+# ex: color = on | off
+# 
+color = on
+
+# 
+# Cache revalidation. Siege supports cache revalidation for both ETag
+# and Last-modified headers. If a copy is still fresh, the server 
+# responds with 304. While this feature is required for HTTP/1.1, it 
+# may not be welcomed for load testing. We allow you to breach the 
+# protocol and turn off caching
+#
+# HTTP/1.1 200   0.00 secs:    2326 bytes ==> /apache_pb.gif
+# HTTP/1.1 304   0.00 secs:       0 bytes ==> /apache_pb.gif
+# HTTP/1.1 304   0.00 secs:       0 bytes ==> /apache_pb.gif
+#
+# Siege also supports Cache-control headers. Consider this server 
+# response: Cache-Control: max-age=3
+# That tells siege to cache the file for three seconds. While it
+# doesn't actually store the file, it will logically grab it from
+# its cache. In verbose output, it designates a cached resource 
+# with (c):
+#
+# HTTP/1.1 200     0.25 secs:     159 bytes ==> GET  /expires/
+# HTTP/1.1 200     1.48 secs:  498419 bytes ==> GET  /expires/Otter_in_Southwold.jpg
+# HTTP/1.1 200     0.24 secs:     159 bytes ==> GET  /expires/
+# HTTP/1.1 200(C)  0.00 secs:       0 bytes ==> GET  /expires/Otter_in_Southwold.jpg
+#
+# NOTE: with color enabled, cached URLs appear in green
+# 
+# ex: cache = true
+#
+cache = true
+
+#
+# Cookie support: by default siege accepts cookies. This directive is
+# available to disable that support. Set cookies to 'false' to refuse 
+# cookies. Set it to 'true' to accept them. The default value is true. 
+# If you want to maintain state with the server, then this MUST be set 
+# to true.
+#
+# ex: cookies = false
+#
+cookies = true 
+
+#
+# Failures: This is the number of total connection failures allowed 
+# before siege aborts. Connection failures (timeouts, socket failures,
+# etc.) are combined with 400 and 500 level errors in the final stats, 
+# but those errors do not count against the abort total.  If you set 
+# this total to 10, then siege will abort after ten socket timeouts, 
+# but it will NOT abort after ten 404s. This is designed to prevent a 
+# run-away mess on an unattended siege. 
+#
+# The default value is 1024
+#
+# ex: failures = 50
+#
+failures = -1