What is Docker

A well-liked platform for containerisation, Docker enables developers to bundle programmes and their dependencies into a standardised unit called a container. Then, these containers can be regularly deployed and operated on many computing environments, including production servers, testing environments, and development computers.

How it's used for local development

For a number of reasons, software development environments frequently use Docker for local development. One of these reasons is because it ensures that the development environments has the same consitency across many machines. This consistency allows developer to package their applications with all it's libraries and dependencies into a Docker container. This ensures that the application behaves the same way despite the underlying host system.

Docker is used for local development by encapsulating all dependencies within a container. This helps prevent developers from configuring dependencies manually on their local machine and simply pull their required docker image from a registry.

Docker packages complex applications into lightweight, portable containers, making the setup process simpler. Using Docker Compose or related tools, developers may easily set up and break down development environments that describe the configuration of multi-container applications.