add pprof handler

.gitignore

@@ -1,4 +1,7 @@
 .vscode
 
 data
-__debug*
+__debug*
+
+.env
+.envrc

Dockerfile

@@ -1,11 +1,12 @@
 FROM docker.io/library/golang:1.24-alpine
 ARG  GOPROXY=direct
+ARG  TAGS=""
 ARG  ALPINE_MIRROR=https://mirrors.ustc.edu.cn
 WORKDIR /src
 COPY go.mod go.sum ./
 RUN  sed -i "s,https://dl-cdn.alpinelinux.org,${ALPINE_MIRROR}," /etc/apk/repositories; apk add git && env GOPROXY=${GOPROXY:-direct} go mod download
 ADD . /src
-RUN  go build -o /cache-proxy ./cmd/proxy
+RUN  go build -o /cache-proxy -tags "${TAGS}" ./cmd/proxy
 
 FROM docker.io/library/alpine:3.21 AS runtime
 COPY --from=0 /cache-proxy /bin/cache-proxy

cmd/proxy/debug.go

@@ -0,0 +1,17 @@
+//go:build pprof
+
+package main
+
+import (
+	"flag"
+	"os"
+)
+
+func init() {
+	flag.BoolVar(&pprofEnabled, "pprof", true, "")
+
+	if v, ok := os.LookupEnv("SENTRY_DSN"); ok {
+		sentrydsn = v
+	}
+	flag.StringVar(&sentrydsn, "sentry", sentrydsn, "sentry dsn to report errors")
+}

cmd/proxy/main.go

@@ -4,6 +4,7 @@ import (
 	"flag"
 	"log/slog"
 	"net/http"
+	"net/http/pprof"
 	"os"
 	"path/filepath"
 	"time"
@@ -22,6 +23,7 @@ var (
 	configFilePath = "config.yaml"
 	logLevel       = "info"
 	sentrydsn      = ""
+	pprofEnabled   = false
 )
 
 func init() {
@@ -31,12 +33,8 @@ func init() {
 	if v, ok := os.LookupEnv("LOG_LEVEL"); ok {
 		logLevel = v
 	}
-	if v, ok := os.LookupEnv("SENTRY_DSN"); ok {
-		sentrydsn = v
-	}
 	flag.StringVar(&configFilePath, "config", configFilePath, "path to config file")
 	flag.StringVar(&logLevel, "log-level", logLevel, "log level. (trace, debug, info, warn, error)")
-	flag.StringVar(&sentrydsn, "sentry", sentrydsn, "sentry dsn to report errors")
 }
 
 func configFromFile(path string) (*cacheproxy.Config, error) {
@@ -124,6 +122,14 @@ func main() {
 
 	mux.HandleFunc("GET /", server.HandleRequestWithCache)
 
+	if pprofEnabled {
+		mux.HandleFunc("GET /debug/pprof/", pprof.Index)
+		mux.HandleFunc("GET /debug/pprof/cmdline", pprof.Cmdline)
+		mux.HandleFunc("GET /debug/pprof/profile", pprof.Profile)
+		mux.HandleFunc("GET /debug/pprof/symbol", pprof.Symbol)
+		mux.HandleFunc("GET /debug/pprof/trace", pprof.Trace)
+	}
+
 	slog.With("addr", ":8881").Info("serving app")
 	if err := http.ListenAndServe(":8881", middleware.Use(mux,
 		recover.Recover(),

compose.release.yaml

@@ -0,0 +1,20 @@
+services:
+  cache-proxy:
+    image: ${REPOSITORY:-git.jeffthecoder.xyz}/${OWNER:-public}/cache-proxy:${VERSION:-latest}
+    build:
+      args:
+        GOPROXY: ${GOPROXY:-direct}
+        ALPINE_MIRROR: ${ALPINE_MIRROR:-https://mirrors.ustc.edu.cn}
+
+    restart: always
+
+    volumes:
+      - ./config.yaml:/config.yaml:ro
+      - ./data:/data
+    ports:
+      - 8881:8881
+    environment:
+      - LOG_LEVEL=info
+    env_file:
+      - path: .env
+        required: false

compose.yaml

@@ -1,12 +1,12 @@
 services:
   cache-proxy:
-    image: 100.64.0.2:3000/guochao/cache-proxy:${VERSION:-latest}
+    image: ${REPOSITORY:-git.jeffthecoder.xyz}/${OWNER:-public}/cache-proxy:${VERSION:-latest}
     build:
       args:
         GOPROXY: ${GOPROXY:-direct}
         ALPINE_MIRROR: ${ALPINE_MIRROR:-https://mirrors.ustc.edu.cn}
+        TAGS: pprof
 
-    pull_policy: always
     restart: always
 
     volumes:
@@ -15,9 +15,8 @@ services:
     ports:
       - 8881:8881
     environment:
-      - HTTPS_PROXY=http://100.64.0.23:7890
+      - SENTRY_DSN=${SENTRY_DSN}
-      - HTTP_PROXY=http://100.64.0.23:7890
-      - ALL_PROXY=http://100.64.0.23:7890
-      - NO_PROXY=localhost,local,cn,*.local,*.cn,127.0.0.1,127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,100.64.0.0/16
-      - SENTRY_DSN=http://3b7336602c77427d96318074cd86ee04@100.64.0.2:8000/2
       - LOG_LEVEL=debug
+    env_file:
+      - path: .env
+        required: false