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What is Docker?

Have you ever heard of a technology that provides containers as an additional layer in automation operating systems? This container virtualization approach is what we call Docker.

Docker provides support for applications that can run in the background when needed, with the goal of creating, testing, and deploying in an environment separated from the original machine. As an open-source platform written in Go, Docker helps manage isolated environments with ease and storage capacity.

This makes server installations portable and stored inside containers. As a result, the same software can be worked on anywhere, with execution simplified across environments.

Benefits of Docker

The platform allows the developer to host software in a customized way, with its own libraries and code—and with a speed that can be higher than conventional virtualization. Because it’s agile, another standout benefit is the ability to configure between different environments, reducing the risk of incompatibility between the requested systems.

In addition to agility, here are other advantages of Docker:

Modularity

Pokémon Go is a great example when we talk about modularity. The game was developed using Docker. Through container overhead management, Docker containers were requested according to user demand. For example, at the end of the day, when the app had a “lower” access rate, not all containers needed to be operating. So, part of the app could be disabled—even for updates—without interrupting the program.

In other words, modularity happens through containers: any change that is made is stored, and new space is freed whenever necessary.

Docker features

In Docker, we typically work with two elements—images and containers—and they can be understood as different layers.

Images and containers

Layers are formed from these elements, which in turn change through the execution or modification of applications across different environments.

Rollback

Have you ever made a change to a system and regretted it? Updating and modifying a project doesn’t need to be a worry. Docker offers a rollback capability that allows previous versions and changes to remain saved.

Because of the layers created, this process is efficient and aligns well with agile development approaches.

Fast deployment

Deployment is a fundamental process in IT companies. For that reason, Docker is a good option: performance and deployment can happen simultaneously in a matter of seconds. Beyond saving hours, it speeds up processes and enables access to previous versions if problems occur. As a result, the team gains time, productivity, and security during deployment.

Because of the capabilities it offers, container storage has become a trend in IT. Docker simplifies DevOps practices and supports agile development and storage.

Ensuring the speed, agility, and quality demanded by consumers requires using solutions that also prioritize these outcomes. Count on X-Apps to build a fast and secure experience.