node-sass 和 Docker 的问题 [英] Issue to node-sass and Docker

问题描述

我正在尝试 dockerise 我的节点应用程序.我当前的应用程序是带有 postgresql 的 nodejs express 服务器.ExpressJS 使用 node-sass-middleware 来处理 sass 资产.当我在 OSX 机器上本地运行 node 和 postgresql 时，一切正常.当我尝试使用 docker-compose 运行应用程序时，出现缺少绑定错误"

I'm attempting to dockerise my node application. My current application is a nodejs express server with postgresql. ExpressJS uses node-sass-middleware to handle the sass assets. When I run node and postgresql locally on my OSX machine everything works fine. When I try to run the app with docker-compose I get a "Missing Binding error"

这是我的 Dockerfile:

Here is my Dockerfile:

FROM node:7.2.1
RUN apt-get update -qq && apt-get install -y build-essential
RUN apt-get install -y libpq-dev postgresql-client
ENV APP_HOME /my_app
RUN mkdir $APP_HOME
WORKDIR $APP_HOME
ADD package.json .
RUN npm install
RUN npm rebuild node-sass
ADD . .
CMD [ "npm", "start" ]
EXPOSE 3000

这是我的 docker-compose.yml 文件:

version: '2'
services:
    db:
      image: postgres:9.6.1
      ports:
        - '5432:5432'
    web:
      build: . # use the Dockerfile next to this file
      volumes:
        - .:/my_app
      ports:
        - "3000:3000"
      depends_on:
        - db

当我运行 docker-compose up 时，我仍然收到以下错误:

When I run docker-compose up I still get the following error:

web_1  | [nodemon] 1.11.0
web_1  | [nodemon] to restart at any time, enter `rs`
web_1  | [nodemon] watching: *.*
web_1  | [nodemon] starting `node ./bin/www`
web_1  | /my_app/node_modules/node-sass/lib/binding.js:15
web_1  |       throw new Error(errors.missingBinary());
web_1  |       ^
web_1  |
web_1  | Error: Missing binding /my_app/node_modules/node-sass/vendor/linux-x64-51/binding.node
web_1  | Node Sass could not find a binding for your current environment: Linux 64-bit with Node.js 7.x
web_1  |
web_1  | Found bindings for the following environments:
web_1  |   - OS X 64-bit with Node.js 7.x
web_1  |
web_1  | This usually happens because your environment has changed since running `npm install`.
web_1  | Run `npm rebuild node-sass` to build the binding for your current environment.
web_1  |     at module.exports (/my_app/node_modules/node-sass/lib/binding.js:15:13)
web_1  |     at Object.<anonymous> (/my_app/node_modules/node-sass/lib/index.js:14:35)
web_1  |     at Module._compile (module.js:571:32)
web_1  |     at Object.Module._extensions..js (module.js:580:10)
web_1  |     at Module.load (module.js:488:32)
web_1  |     at tryModuleLoad (module.js:447:12)
web_1  |     at Function.Module._load (module.js:439:3)
web_1  |     at Module.require (module.js:498:17)
web_1  |     at require (internal/module.js:20:19)
web_1  |     at Object.<anonymous> (/my_app/node_modules/node-sass-middleware/middleware.js:3:12)
web_1  |     at Module._compile (module.js:571:32)
web_1  |     at Object.Module._extensions..js (module.js:580:10)
web_1  |     at Module.load (module.js:488:32)
web_1  |     at tryModuleLoad (module.js:447:12)
web_1  |     at Function.Module._load (module.js:439:3)
web_1  |     at Module.require (module.js:498:17)
web_1  | [nodemon] app crashed - waiting for file changes before starting...

我虽然通过将 RUN npm rebuild node-sass 添加到 Dockerfile，它将为 docker 容器中的操作系统构建正确的绑定......但它似乎不起作用.

I though by adding RUN npm rebuild node-sass to the Dockerfile, it would build the correct binding for the OS in the docker container... But it does not seem to work.

有什么想法吗?

推荐答案

node-sass v3.7.0 似乎已经添加了对 Node.js 7(适用于 Linux 和 OSX)的支持.请确保您使用的版本等于或高于此版本.

The support for Node.js 7 (for Linux and OSX) seems to have been added in node-sass v3.7.0. Make sure you use a version equal to or newer than this.

或者你可以更新你的 Dockerfile:

Either you can update your Dockerfile:

FROM node:7.2.1
RUN apt-get update -qq && apt-get install -y build-essential
RUN apt-get install -y libpq-dev postgresql-client
ENV APP_HOME /my_app
RUN mkdir $APP_HOME
WORKDIR $APP_HOME
ADD package.json .

# Add the two entries below
RUN mkdir -p node_modules/node-sass/vendor/linux-x64-51
RUN curl -L https://github.com/sass/node-sass/releases/download/v4.5.0/linux-x64-51_binding.node -o node_modules/node-sass/vendor/linux-x64-51/binding.node

RUN npm install
RUN npm rebuild node-sass
ADD . .
CMD [ "npm", "start" ]
EXPOSE 3000

或者您可以在本地下载绑定，然后从 Dockerfile 构建，无需任何修改:

Or you can download the binding locally and then build from the Dockerfile without any modification:

cd /path/to/node_app/node_modules
mkdir -p node-sass/vendor/linux-x64-51
curl -L https://github.com/sass/node-sass/releases/download/v4.5.0/linux-x64-51_binding.node -o node-sass/vendor/linux-x64-51/binding.node

留意预编译本机绑定的不同版本:https://github.com/sass/node-sass/releases

Keep an eye out for different versions for the pre-compiled native bindings at: https://github.com/sass/node-sass/releases

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