nodejs docker 开发最好选择yarn 进行包管理而不是npm

• 基础镜像尽量小
• 对于构建进行缓存处理
• 构建的docker 的文件层数尽量少
• 能直接运行的，就别进行重复构建了（比如go）

yarn init 

yarn add hapi

package.json  add

"scripts":{

   "run":"node index.js"
}

const Hapi = require(‘hapi‘);

// Create a server with a host and port
const server = new Hapi.Server();
server.connection({ 
    host: ‘0.0.0.0‘, 
    port: 8009 
});

// Add the route
server.route({
    method: ‘GET‘,
    path:‘/hello‘, 
    handler: function (request, reply) {

        return reply(‘hello world‘);
    }
});

// Start the server
server.start((err) => {

    if (err) {
        throw err;
    }
    console.log(‘Server running at:‘, server.info.uri);
});

FROM kkarczmarczyk/node-yarn
RUN mkdir -p /home/nodejs/app
WORKDIR /home/nodejs/app
COPY . /home/nodejs/app
RUN yarn 
CMD ["yarn","run","run"]

docker build -t demo .
docker run -d -p 8009:8009 demo

https://hub.docker.com/r/kkarczmarczyk/node-yarn/
https://yarnpkg.com/zh-Hans/
https://hapijs.com/