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Dockerfile example

Dockerfile is a mirror description file that contains instructions, each of which builds a layer, so the content of each instruction is to describe how the layer should be built. Basic structure of Dockerfile:

The basic image maintainer information image build instruction container executes the instruction FROM node:8LABEL maintainer= "Jext Community, https://github.com/rickding/HelloDocker"# copy filesCOPY." / usr/node/WORKDIR / usr/node/# launch serviceCMD ["node", "hello.js"] EXPOSE 8010Dockerfile common instructions

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