问题描述
我正在开发一个简单的NodeJS应用程序.我使用docker，它使部署到生产环境变得非常容易.这是我的Dockerfile:
I'm developing a simple NodeJS application. I use docker and it makes it very easy to deploy to production.This is my Dockerfile:
FROM node
COPY . /src
RUN cd /src; npm install
EXPOSE 3000
CMD ["node", "/src/express.js"]
在我的开发环境(Windows，boot2Docker)上，Docker拖慢了我的速度，因为我所做的每一个小改变，我都必须重新构建Docker映像并运行容器，这需要几分钟.我找不到简单地将源文件从主机复制到docker容器的方法.有一个简单的方法吗?我应该在开发环境上使用纯NodeJS，而仅在生产环境中使用Docker吗?
On my development environment (windows, boot2Docker) Docker is slowing me down, because for every small change I do, I have to re-build the Docker image and run the container and it takes a few minutes.
I couldn't find a way to simply copy my source files from the host to the docker container. Is there an easy way to do it? Should I use plain nodeJS on my development environment and only use Docker in production?
谢谢！
推荐答案
尝试以下操作:
FROM node
COPY ./package.json /src
RUN cd /src && npm install
COPY . src/
EXPOSE 3000
CMD ["node", "/src/express.js"]
您每次在src中进行更改时，最初使用的方式将安装npm软件包.如果我们分开此步骤，则仅在package.json文件更改的情况下才安装这些软件包.
The way you originally have it will install npm packages everytime you change something within src. If we separate this step, these packages will only be installed if the package.json file changes.
这篇关于Windows上的Docker节点开发环境的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！