Getting Started with Node.js
Learn what steps are taken to run a Node.js app without using Docker.
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What is Node.js? 
Node.js is a popular, high-performance JavaScript runtime built with the Chrome browser’s V8 JavaScript engine. It’s typically used for server-side web development but has also been adopted for client-side build tools, desktop applications, embedded systems, and more.
After installing Node.js, you can execute a JavaScript file using:
node ./index.js
where index.js is a single entry script. It can be named anything, but many projects use that name.
Until now, you’ve been using Docker images provided at Docker Hub. This chapter illustrates how to build your own Docker image that installs and executes your application in both development and production environments.
Node.js is similar to other runtimes such as PHP, Python, Ruby, Go, and Rust. The same Docker concepts apply regardless of the runtime ...