feat: prefer util.WritablePath() for logs and local storage

cmd/server/main.go

@@ -147,6 +147,7 @@ func main() {
 		}
 		return "", false
 	}
+	writableBase := util.WritablePath()
 	if value, ok := lookupEnv("PGSTORE_DSN", "pgstore_dsn"); ok {
 		usePostgresStore = true
 		pgStoreDSN = value
@@ -158,6 +159,13 @@ func main() {
 		if value, ok := lookupEnv("PGSTORE_LOCAL_PATH", "pgstore_local_path"); ok {
 			pgStoreLocalPath = value
 		}
+		if pgStoreLocalPath == "" {
+			if writableBase != "" {
+				pgStoreLocalPath = writableBase
+			} else {
+				pgStoreLocalPath = wd
+			}
+		}
 		useGitStore = false
 	}
 	if value, ok := lookupEnv("GITSTORE_GIT_URL", "gitstore_git_url"); ok {
@@ -229,11 +237,14 @@ func main() {
 			log.Infof("postgres-backed token store enabled, workspace path: %s", pgStoreInst.WorkDir())
 		}
 	} else if useObjectStore {
-		objectStoreRoot := objectStoreLocalPath
-		if objectStoreRoot == "" {
-			objectStoreRoot = wd
+		if objectStoreLocalPath == "" {
+			if writableBase != "" {
+				objectStoreLocalPath = writableBase
+			} else {
+				objectStoreLocalPath = wd
+			}
 		}
-		objectStoreRoot = filepath.Join(objectStoreRoot, "objectstore")
+		objectStoreRoot := filepath.Join(objectStoreLocalPath, "objectstore")
 		resolvedEndpoint := strings.TrimSpace(objectStoreEndpoint)
 		useSSL := true
 		if strings.Contains(resolvedEndpoint, "://") {
@@ -289,7 +300,11 @@ func main() {
 		}
 	} else if useGitStore {
 		if gitStoreLocalPath == "" {
-			gitStoreLocalPath = wd
+			if writableBase != "" {
+				gitStoreLocalPath = writableBase
+			} else {
+				gitStoreLocalPath = wd
+			}
 		}
 		gitStoreRoot = filepath.Join(gitStoreLocalPath, "gitstore")
 		authDir := filepath.Join(gitStoreRoot, "auths")

internal/api/handlers/management/logs.go

@@ -13,6 +13,7 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 )
 
 const (
@@ -145,6 +146,9 @@ func (h *Handler) logDirectory() string {
 	if h.logDir != "" {
 		return h.logDir
 	}
+	if base := util.WritablePath(); base != "" {
+		return filepath.Join(base, "logs")
+	}
 	if h.configFilePath != "" {
 		dir := filepath.Dir(h.configFilePath)
 		if dir != "" && dir != "." {

internal/api/server.go

@@ -52,7 +52,11 @@ type serverOptionConfig struct {
 type ServerOption func(*serverOptionConfig)
 
 func defaultRequestLoggerFactory(cfg *config.Config, configPath string) logging.RequestLogger {
-	return logging.NewFileRequestLogger(cfg.RequestLog, "logs", filepath.Dir(configPath))
+	configDir := filepath.Dir(configPath)
+	if base := util.WritablePath(); base != "" {
+		return logging.NewFileRequestLogger(cfg.RequestLog, filepath.Join(base, "logs"), configDir)
+	}
+	return logging.NewFileRequestLogger(cfg.RequestLog, "logs", configDir)
 }
 
 // WithMiddleware appends additional Gin middleware during server construction.
@@ -233,7 +237,11 @@ func NewServer(cfg *config.Config, authManager *auth.Manager, accessManager *sdk
 	if optionState.localPassword != "" {
 		s.mgmt.SetLocalPassword(optionState.localPassword)
 	}
-	s.mgmt.SetLogDirectory(filepath.Join(s.currentPath, "logs"))
+	logDir := filepath.Join(s.currentPath, "logs")
+	if base := util.WritablePath(); base != "" {
+		logDir = filepath.Join(base, "logs")
+	}
+	s.mgmt.SetLogDirectory(logDir)
 	s.localPassword = optionState.localPassword
 
 	// Setup routes

internal/logging/global_logger.go

@@ -10,6 +10,7 @@ import (
 	"sync"
 
 	"github.com/gin-gonic/gin"
+	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	log "github.com/sirupsen/logrus"
 	"gopkg.in/natefinch/lumberjack.v2"
 )
@@ -72,7 +73,10 @@ func ConfigureLogOutput(loggingToFile bool) error {
 	defer writerMu.Unlock()
 
 	if loggingToFile {
-		const logDir = "logs"
+		logDir := "logs"
+		if base := util.WritablePath(); base != "" {
+			logDir = filepath.Join(base, "logs")
+		}
 		if err := os.MkdirAll(logDir, 0o755); err != nil {
 			return fmt.Errorf("logging: failed to create log directory: %w", err)
 		}

internal/managementasset/updater.go

@@ -64,6 +64,10 @@ func StaticDir(configFilePath string) string {
 		return cleaned
 	}
 
+	if writable := util.WritablePath(); writable != "" {
+		return filepath.Join(writable, "static")
+	}
+
 	configFilePath = strings.TrimSpace(configFilePath)
 	if configFilePath == "" {
 		return ""

internal/util/util.go

@@ -84,3 +84,17 @@ func CountAuthFiles(authDir string) int {
 	}
 	return count
 }
+
+// WritablePath returns the cleaned WRITABLE_PATH environment variable when it is set.
+// It accepts both uppercase and lowercase variants for compatibility with existing conventions.
+func WritablePath() string {
+	for _, key := range []string{"WRITABLE_PATH", "writable_path"} {
+		if value, ok := os.LookupEnv(key); ok {
+			trimmed := strings.TrimSpace(value)
+			if trimmed != "" {
+				return filepath.Clean(trimmed)
+			}
+		}
+	}
+	return ""
+}