Docker packages your application and its dependencies into a single image for use in a container, but these images often become unnecessarily large. For example, a simple Node.js application using an official image can swell to 644 MB, even though the application itself takes up less than 1 MB. Optimizing the image can significantly reduce this excess size. So what can we do to reduce the image size?

Cron jobs are an essential tool for automating repetitive tasks on Unix-like operating systems. They enable users to schedule scripts or commands to run at specified times and intervals, making system maintenance, data backups, and other routine tasks more manageable. Understanding the format of a cron job schedule is crucial for effectively utilizing this powerful feature.

Today we will Dockerize a Node.js application. We will use Nest.js for today. But the commands and processes are exactly the same for any Node.js application built by some other frameworks.

Step-by-step guide how to Dockerize your Next.js app

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