如何在运行 Docker 时隐藏 node.js 警告？

Question

当我构建镜像并运行时，我不断收到此消息

❌❌❌

（节点：26）[DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning：“onAfterSetupMiddleware”选项已弃用。 请使用“setupMiddlewares”选项。 （使用

node --trace-deprecation ...

显示创建警告的位置）（节点：26）[DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning：“onBeforeSetupMiddleware”选项已弃用。 请使用“setupMiddlewares”选项。开始开发 服务器...

➜  ace git:(main) ✗ docker build -t ace-image .      
[+] Building 9.7s (11/11) FINISHED                                                                                         
 => [internal] load build definition from Dockerfile                                                                  0.0s
 => => transferring dockerfile: 625B                                                                                  0.0s
 => [internal] load .dockerignore                                                                                     0.0s
 => => transferring context: 34B                                                                                      0.0s
 => [internal] load metadata for docker.io/library/node:16-alpine                                                     0.5s
 => [1/6] FROM docker.io/library/node:16-alpine@sha256:b4a72f83f52bbe3970bb74a15e44ec4cf6e873ad4787473dfc8a26f5b4e29  0.0s
 => [internal] load build context                                                                                     0.1s
 => => transferring context: 24.22kB                                                                                  0.1s
 => CACHED [2/6] WORKDIR /app                                                                                         0.0s
 => CACHED [3/6] COPY package*.json ./                                                                                0.0s
 => CACHED [4/6] RUN npm install --quiet                                                                              0.0s
 => [5/6] COPY . .                                                                                                    0.0s
 => [6/6] RUN npm run build                                                                                           8.9s
 => exporting to image                                                                                                0.0s
 => => exporting layers                                                                                               0.0s
 => => writing image sha256:478016d17cf8826bbbb94faecc2a4f556a5f77280c41342bd27b1b200f2870ba                          0.0s 
 => => naming to docker.io/library/ace-image                                                                          0.0s 
➜  ace git:(main) ✗ docker run -p 3000:3000 ace-image

> [email protected] start
> react-scripts start --quiet

(node:26) [DEP_WEBPACK_DEV_SERVER_ON_AFTER_SETUP_MIDDLEWARE] DeprecationWarning: 'onAfterSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
(Use `node --trace-deprecation ...` to show where the warning was created)
(node:26) [DEP_WEBPACK_DEV_SERVER_ON_BEFORE_SETUP_MIDDLEWARE] DeprecationWarning: 'onBeforeSetupMiddleware' option is deprecated. Please use the 'setupMiddlewares' option.
Starting the development server...

Compiled successfully!

You can now view ace in the browser.

  Local:            http://localhost:3000
  On Your Network:  http://172.17.0.2:3000

Note that the development build is not optimized.
To create a production build, use npm run build.

webpack compiled successfully
Compiling...
Compiled successfully!
webpack compiled successfully

如您所见，我已经尝试将其静音，但没有用

我试过了

CMD ["npm", "start", "--", "--quiet"]

# Set the base image to Node 16
FROM node:16-alpine

# Set the working directory in the container to /app
WORKDIR /app

# Copy the package.json and package-lock.json files to the container
COPY package*.json ./

# Install dependencies quietly
RUN npm install --quiet

# Copy the rest of the application code to the container
COPY . .

# Build the application
RUN npm run build

# Expose port 3000
EXPOSE 3000

# Run the command to start the server
CMD ["npm", "start", "--", "--quiet"]

Answer 1

使用--不弃用：

# Dockerfile
CMD ["npm", "start"]

// package.json
  "scripts": {
    "start": "node --no-deprecation [entrypoint e.g. index.js]",
...

您可能想要使用此标志添加一个新脚本，例如

start:production

，这样您仍然可以在开发过程中看到警告。

Answer 2

使用

npm run build

构建您的应用程序后，您不再需要使用

start

命令来启动开发服务器。您可以改为定义多阶段 Docker 构建以使用 nginx 为您的应用程序提供服务。

A

Dockerfile

这样应该有帮助：

# Stage 1: Compile and build the app

# Set the build stage image to Node 16
FROM node:16-alpine as build

# Set the working directory in the container to /app
WORKDIR /app

# Copy the package.json and package-lock.json files to the container
COPY package*.json ./

# Install dependencies quietly
RUN npm install --quiet

# Copy the rest of the application code to the container
COPY . .

# Build the application
RUN npm run build


# Stage 2: Serve app with nginx

# Set the base running image to nginx Alpine
FROM nginx:alpine-perl

# Copy the output from the build stage
COPY --from=build /app/dist/my-app /usr/share/nginx/html

# Expose port 80
EXPOSE 80

您需要将 /app/dist/my-app 更改为您的应用程序名称。

正如您在

Dockerfile

中所见，没有定义自定义

CMD

命令。默认情况下，nginx 镜像将提供

/usr/share/nginx/html

的内容。