![]() run npm install to install all the application's dependencies, as specified inside the dependencies property of the package.json, as well as the package-lock.json file.Don't know what a build context is? Check out the documentation on docker build. ![]() copy everything from the build context to the current WORKDIR.It's similar to runnin cd /root/ on your terminal. we want all subsequent instructions in this Dockerfile to be carried out inside the specified directory.we want to build our Docker image based on the node base image. ![]() But for those new to Docker, here's a brief overview: You can find all valid instructions at the Dockerfile reference page. FROM nodeĮach line inside a Dockerfile is called an instruction. Next, open up the Dockerfile to see what instructions are already there. Specifically, we want to use the docker/basic branch. Start by cloning the repository at /d4nyll/docker-demo-frontend. dockerignore to ignore sensitive filesĪlthough this article deals with a Node.js application, the principles outlined here applies to applications written in other languages and frameworks too! Backgroundįor this article, we will work to optimize the Dockerfile associated with a basic front-end application.
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