Docker vs Kubernetes: What are the differences?
Developers describe Docker as "Enterprise Container Platform for High-Velocity Innovation". The Docker Platform is the industry-leading container platform for continuous, high-velocity innovation, enabling organizations to seamlessly build and share any application — from legacy to what comes next — and securely run them anywhere. On the other hand, Kubernetes is detailed as "Manage a cluster of Linux containers as a single system to accelerate Dev and simplify Ops". Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
Docker belongs to "Virtual Machine Platforms & Containers" category of the tech stack, while Kubernetes can be primarily classified under "Container Tools".
Some of the features offered by Docker are:
- Integrated developer tools
- open, portable images
- shareable, reusable apps
On the other hand, Kubernetes provides the following key features:
- Lightweight, simple and accessible
- Built for a multi-cloud world, public, private or hybrid
- Highly modular, designed so that all of its components are easily swappable
"Rapid integration and build up", "Isolation" and "Open source" are the key factors why developers consider Docker; whereas "Leading docker container management solution", "Simple and powerful" and "Open source" are the primary reasons why Kubernetes is favored.
Docker and Kubernetes are both open source tools. Kubernetes with 55.1K GitHub stars and 19.1K forks on GitHub appears to be more popular than Docker with 54K GitHub stars and 15.6K GitHub forks.
Spotify, Pinterest, and Twitter are some of the popular companies that use Docker, whereas Kubernetes is used by Google, Slack, and Shopify. Docker has a broader approval, being mentioned in 3526 company stacks & 3446 developers stacks; compared to Kubernetes, which is listed in 1048 company stacks and 1097 developer stacks.
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