Infrastructure

Kubernetes vs. Docker: Why not both?

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Kubernetes Docker vs.Though some observers will argue the point, the Kubernetes versus Docker discussion is a bit of a misunderstanding.

Both technologies focus on containers, but they don’t actually compete. Each is great for its intended purpose. In some cases, they even work together.

Here’s how each solution can help you make the most of both.

What is a container?

A container is an executable package of software. It bundles together everything required to run it, including code, libraries and even the operating system. It’s similar to a virtual machine (VM), but it avoids a great deal of the trouble because it virtualizes the operating system (OS) rather than the underlying hardware.

This enables engineers to quickly develop applications that will run consistently across a large number of machines and software environments. It also eliminates many of the conflicts within teams that come from differences in tools and software.

What is Docker?

The Docker Container Platform is an excellent tool for building and deploying containerized applications. The platform helps developers easily isolate software into containers as they create it. It’s also an effective way to prepare existing applications for the cloud.

The way that Docker puts it is that the platform allows teams to “deploy any app, anywhere, at any time.” That’s a pretty powerful capability.

What is Kubernetes?

This post answers this question in a little more detail. The quick answer is that Kubernetes is an open source solution for container orchestration.

What does that mean, exactly? Large enterprise applications can include a huge number of containers, so managing these containers can present an IT challenge of its own. Kubernetes helps teams manage, automate and deploy containers.

Kubernetes and Docker: Finding your best container solution

While Docker does have its own container orchestration solution called Docker Swarm, Kubernetes and Docker mostly solve different problems and thus can coexist. Later versions of Docker even have built-in integration with Kubernetes.This Kubernetes integration enables development teams to more effectively automate and manage all the great containerized applications that Docker helped them build. It can be a powerful combination.

For example, IBM Cloud Pak for Applications uses Docker, Kubernetes and IBM integration technologies to help users build cloud applications, protect data and move applications to the cloud, all from behind their organization’s firewall. In addition, IBM Cloud Pak for Multicloud Management, the enterprise-grade multicloud management solution for Kubernetes, increases visibility across your multicloud infrastructures, offers built-in support for your compliance management and provides consistent application management.

In the end, it’s a question of what combination of tools your team will need to accomplish its business goals. Watch the video below and explore IBM Cloud Kubernetes Service to learn more.

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