Dockerizing the NestJS App
Discover how to Dockerize a NestJS app.
Create a Docker image for the NestJS app
In this lesson, we’ll explore the process of Dockerizing a NestJS application, enabling seamless deployment and scalability. Docker provides a containerization platform that encapsulates an application and its dependencies, ensuring consistency across various environments.
Docker overview
Docker is like a virtual box for software, allowing developers to package their applications and all needed tools into a portable container. A container is a lightweight, standalone, and executable software package that includes everything needed to run an application, including the code, runtime, libraries, and system tools. Containers ensure consistent and efficient deployment across different computing environments.
These containers run consistently on any computer. It’s like a magic box that keeps our software tidy and ready to work wherever needed.
Docker simplifies the deployment process by packaging an application and its dependencies into a single container. This container can run on any system that supports Docker, eliminating the “it works on my machine” problem. Deploying a Dockerized application is as simple as running the container, streamlining the deployment pipeline, and reducing potential deployment issues.
Image and Dockerfile
An image is a lightweight, standalone, and executable package with the application code, dependencies, libraries, and configurations. It’s a snapshot of the application and its environment, allowing for consistent deployment and scalability across various environments using Docker containers.
On the other hand, a Dockerfile is a script containing instructions for building a Docker image. The image is the result of executing ...