fix docker defaults to writable /data config path and align docs

API.en.md

@@ -917,12 +917,15 @@ Updates proxy binding for a specific account.
   "message": "API test successful (session creation only)",
   "model": "deepseek-v4-flash",
   "session_count": 0,
-  "config_writable": true
+  "config_writable": true,
+  "config_warning": ""
 }
 ```
 
 If a `message` is provided, `thinking` may also be included when the upstream response carries reasoning text.
 
+When the configured file path is not writable (for example, read-only `/app/config.json` inside some containers), login/session testing still proceeds; `config_warning` is returned to indicate token persistence failed and the token is memory-only until restart.
+
 ### `POST /admin/accounts/test-all`
 
 Optional request field: `model`.

API.md

@@ -934,12 +934,15 @@ data: {"type":"message_stop"}
   "message": "API 测试成功（仅会话创建）",
   "model": "deepseek-v4-flash",
   "session_count": 0,
-  "config_writable": true
+  "config_writable": true,
+  "config_warning": ""
 }
 ```
 
 如果传入 `message`，还会附带 `thinking`（当上游返回思考内容时）。
 
+当部署环境配置文件路径不可写（例如容器内默认 `/app/config.json` 只读）时，登录与会话测试仍可继续；此时会返回 `config_warning` 提示 token 仅保存在内存、重启后丢失。
+
 ### `POST /admin/accounts/test-all`
 
 可选请求字段：`model`

README.MD

@@ -245,6 +245,7 @@ docker-compose logs -f
 ```
 
 默认 `docker-compose.yml` 会把宿主机 `6011` 映射到容器内的 `5001`。如果你希望直接对外暴露 `5001`，请设置 `DS2API_HOST_PORT=5001`（或者手动调整 `ports` 配置）。
+同时默认把 `./config.json` 挂载到容器 `/data/config.json`，并设置 `DS2API_CONFIG_PATH=/data/config.json`，用于避免 `/app` 只读导致运行时 token 持久化失败。
 
 更新镜像：`docker-compose up -d --build`
 

README.en.md

@@ -233,6 +233,7 @@ docker-compose up -d
 ```
 
 The default `docker-compose.yml` uses `ghcr.io/cjackhwang/ds2api:latest` and maps host port `6011` to container port `5001`. If you want `5001` exposed directly, set `DS2API_HOST_PORT=5001` (or adjust the `ports` mapping).
+It also mounts `./config.json` to `/data/config.json` and sets `DS2API_CONFIG_PATH=/data/config.json` by default, which avoids runtime token persistence failures caused by read-only `/app`.
 
 Rebuild after updates: `docker-compose up -d --build`
 

docker-compose.yml

@@ -9,8 +9,9 @@ services:
       # Host port is configurable via DS2API_HOST_PORT; container port stays fixed at 5001.
       - "${DS2API_HOST_PORT:-6011}:5001"
     volumes:
-      - ./config.json:/app/config.json    # 配置文件
+      - ./config.json:/data/config.json   # 配置文件（持久化推荐路径）
     environment:
       - TZ=Asia/Shanghai
       - LOG_LEVEL=INFO
       - DS2API_ADMIN_KEY=${DS2API_ADMIN_KEY:-ds2api}
+      - DS2API_CONFIG_PATH=/data/config.json

docs/DEPLOY.en.md

@@ -130,6 +130,7 @@ docker-compose logs -f
 ```
 
 The default `docker-compose.yml` directly uses `ghcr.io/cjackhwang/ds2api:latest` and maps host port `6011` to container port `5001`. If you want `5001` exposed directly, set `DS2API_HOST_PORT=5001` (or adjust the `ports` mapping).
+The compose template also defaults to `DS2API_CONFIG_PATH=/data/config.json` with `./config.json:/data/config.json` mounted, so deployments avoid read-only `/app` persistence issues by default.
 
 If you want a pinned version instead of `latest`, you can also pull a specific tag directly:
 
@@ -195,6 +196,11 @@ Notes:
 
 - **Port**: DS2API listens on `5001` by default; the template sets `PORT=5001`.
 - **Persistent config**: the template mounts `/data` and sets `DS2API_CONFIG_PATH=/data/config.json`. After importing config in Admin UI, it will be written and persisted to this path.
+- **`open /app/config.json: permission denied`**: this means the instance is trying to persist runtime tokens to a read-only path (commonly `/app` inside the image).  
+  Recommended handling:
+  1. Set a writable path explicitly: `DS2API_CONFIG_PATH=/data/config.json` (and mount a persistent volume at `/data`);
+  2. If you bootstrap with `DS2API_CONFIG_JSON` and do not need runtime writeback, keep env-backed mode (`DS2API_ENV_WRITEBACK` disabled);
+  3. In current versions, login/session tests continue even if persistence fails; Admin API returns a warning that token persistence failed and token is memory-only until restart.
 - **Build version**: Zeabur / regular `docker build` does not require `BUILD_VERSION` by default. The image prefers that build arg when provided, and automatically falls back to the repo-root `VERSION` file when it is absent.
 - **First login**: after deployment, open `/admin` and login with `DS2API_ADMIN_KEY` shown in Zeabur env/template instructions (recommended: rotate to a strong secret after first login).
 

docs/DEPLOY.md

@@ -130,6 +130,7 @@ docker-compose logs -f
 ```
 
 默认 `docker-compose.yml` 直接使用 `ghcr.io/cjackhwang/ds2api:latest`，并把宿主机 `6011` 映射到容器内的 `5001`。如果你希望直接对外暴露 `5001`，请设置 `DS2API_HOST_PORT=5001`（或者手动调整 `ports` 配置）。
+Compose 模板还会默认设置 `DS2API_CONFIG_PATH=/data/config.json` 并挂载 `./config.json:/data/config.json`，优先避免 `/app` 只读带来的配置持久化问题。
 
 如需固定版本，也可以直接拉取指定 tag：
 
@@ -195,6 +196,11 @@ healthcheck:
 
 - **端口**：服务默认监听 `5001`，模板会固定设置 `PORT=5001`。
 - **配置持久化**：模板挂载卷 `/data`，并设置 `DS2API_CONFIG_PATH=/data/config.json`；在管理台导入配置后，会写入并持久化到该路径。
+- **`open /app/config.json: permission denied`**：说明当前实例在尝试把运行时 token 持久化到只读路径（常见于镜像内 `/app`）。  
+  处理建议：
+  1. 显式设置可写路径：`DS2API_CONFIG_PATH=/data/config.json`（并挂载持久卷到 `/data`）；  
+  2. 若你使用 `DS2API_CONFIG_JSON` 启动且不需要运行时落盘，可保持环境变量模式（`DS2API_ENV_WRITEBACK` 关闭）；  
+  3. 最新版本中，即使持久化失败，登录/会话测试仍会继续，仅提示“token 未持久化（重启后丢失）”。
 - **构建版本号**：Zeabur / 普通 `docker build` 默认不需要传 `BUILD_VERSION`；镜像会优先使用该构建参数，未提供时自动回退到仓库根目录的 `VERSION` 文件。
 - **首次登录**：部署完成后访问 `/admin`，使用 Zeabur 环境变量/模板指引中的 `DS2API_ADMIN_KEY` 登录（建议首次登录后自行更换为强密码）。
 

internal/config/paths.go

@@ -30,6 +30,11 @@ func ResolvePath(envKey, defaultRel string) string {
 }
 
 func ConfigPath() string {
+	if strings.TrimSpace(os.Getenv("DS2API_CONFIG_PATH")) == "" && BaseDir() == "/app" {
+		// Official container images commonly run from /app where filesystem may be read-only.
+		// Prefer /data default so deployments can persist config/token state by mounting a volume.
+		return "/data/config.json"
+	}
 	return ResolvePath("DS2API_CONFIG_PATH", "config.json")
 }
 

internal/httpapi/admin/accounts/handler_accounts_testing.go

@@ -107,6 +107,7 @@ func (h *Handler) testAccount(ctx context.Context, acc config.Account, model, me
 		"model":           model,
 		"session_count":   0,
 		"config_writable": !h.Store.IsEnvBacked(),
+		"config_warning":  "",
 	}
 	defer func() {
 		status := "failed"
@@ -121,8 +122,7 @@ func (h *Handler) testAccount(ctx context.Context, acc config.Account, model, me
 		return result
 	}
 	if err := h.Store.UpdateAccountToken(acc.Identifier(), token); err != nil {
-		result["message"] = "登录成功但写入运行时 token 失败: " + err.Error()
-		return result
+		result["config_warning"] = "登录成功，但 token 持久化失败（仅保存在内存，重启后会丢失）: " + err.Error()
 	}
 	authCtx := &authn.RequestAuth{UseConfigToken: false, DeepSeekToken: token, AccountID: identifier, Account: acc}
 	proxyCtx := authn.WithAuth(ctx, authCtx)
@@ -136,8 +136,7 @@ func (h *Handler) testAccount(ctx context.Context, acc config.Account, model, me
 		token = newToken
 		authCtx.DeepSeekToken = token
 		if err := h.Store.UpdateAccountToken(acc.Identifier(), token); err != nil {
-			result["message"] = "刷新 token 成功但写入运行时 token 失败: " + err.Error()
-			return result
+			result["config_warning"] = "刷新 token 成功，但 token 持久化失败（仅保存在内存，重启后会丢失）: " + err.Error()
 		}
 		sessionID, err = h.DS.CreateSession(proxyCtx, authCtx, 1)
 		if err != nil {
@@ -155,6 +154,9 @@ func (h *Handler) testAccount(ctx context.Context, acc config.Account, model, me
 	if strings.TrimSpace(message) == "" {
 		result["success"] = true
 		result["message"] = "Token 刷新成功（登录与会话创建成功）"
+		if warning, _ := result["config_warning"].(string); strings.TrimSpace(warning) != "" {
+			result["message"] = result["message"].(string) + "；" + warning
+		}
 		result["response_time"] = int(time.Since(start).Milliseconds())
 		return result
 	}