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How do Docker and Kubernetes Vary From One Another?

April 26, 2023
4 Min Read

Docker and Kubernetes are the two most often used technologies in the contemporary cloud-native container ecosystem. Because of the utility they provide and the openness of their communities, these two open platforms have allowed the container revolution to flourish. Although they are often combined, Docker and Kubernetes serve separate purposes. This distinction is critical for understanding the current practices of container development, deployment, and upkeep.

Kubernetes: What is it?

A cluster of networked resources is managed using a well-known open-source system called Kubernetes, commonly referred to as K8s. Docker is not required to utilize Kubernetes.

Google created Kubernetes in the beginning because it required a new method to operate a large number of containers efficiently each week. Since Google launched Kubernetes open source in 2014, it has gained widespread acceptance as the market leader and accepted an orchestration platform for the deployment of distributed applications and containers. Kubernetes consulting services are increasingly in demand due to their convenience and ease of use. Google claims that the main goal of Kubernetes’ architecture is to make it easy to build and administer complex distributed systems while still using the higher utilization that containers provide.

Docker: What Is It?

A well-liked technology called Docker makes it simple to create, distribute, and operate apps as independent, portable containers. A cutting-edge method of operating system virtualization called containerization enables you to package your code and all of its dependencies as independent pieces, guaranteeing that the program will function reliably in various computing environments.

Docker was released in 2013 by Docker, Inc. Enterprise Edition) and open-source software are both used to deploy Docker (Community Edition).

Although the idea of segregating environments is not new—and numerous containerization solutions were already in use before Docker was ever released—Docker has emerged as the industry standard for containerization in recent years. The process of running container apps has been made much simpler.

What’s the Difference Between Docker and Kubernetes?

Kubernetes and Docker are both open, cloud-native technologies. Moreover, many cloud service providers have managed options that handle both Kubernetes and Docker components. The two are different in that Docker concentrates on putting containerized applications on a single node, while Kubernetes is designed to run containerized software across a cluster. These packages are often used in conjunction since they each do various tasks.

Of course, you may use Docker and Kubernetes separately. A smaller project may profit from just adopting Docker instead of Kubernetes, but a big organization may benefit from it and be able to handle its upkeep. Instead, a business might use OCI or Docker containers in conjunction with another container scheduler. Similarly, Kubernetes works with different container types and runtimes but is most often used with Docker containers.

Beginning in 2020, Kubernetes will no longer support the Docker container engine in favor of CRI-O and confined, among other container engines. To decrease the number of moving pieces, the Dockershim was eliminated; nonetheless, Docker registries, OCI, and other Docker image formats are still supported by Kubernetes.

Upcoming Developments for Kubernetes and Docker

Microservices

The increase in container utilization is mostly due to this tendency. Microservices, as we all know, divide programs into tiny, lightweight, and autonomous services. In light of these criteria, containers are an excellent choice for supporting these kinds of applications in a production setting.

Environments with Many Clouds

Single-cloud solutions are gradually disappearing from the market. These days, businesses seek multi-cloud setups where they can take advantage of additional possibilities and lessen their reliance on a single source. Users may thus employ Kubernetes and Docker in multi-cloud scenarios.

Support

Both Kubernetes and Docker are seeing a spike in an active user base that often updates data thanks to the devoted communities that support each one. It is understandable why these solutions are moving toward becoming more widespread in both big and small corporate enterprises given this supporting community.

Conclusion

In this post, we learned that two important technologies for building and managing containers are Docker and Kubernetes. If you want to learn how to create and execute containers, start using Docker on your laptop. After your containers are orchestrated, run them in production using Kubernetes.

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