Docker vs Kubernetes: Key Differences Docker and Kubernetes serve different purposes in the containerization ecosystem but are often used together. Here’s a breakdown of their differences: Docker What It Is: A platform for building, packaging, and running containerized applications. Primary Focus: Containerization. Key Features: Provides tools to create and manage containers. Manages container images and allows seamless sharing (e.g., via Docker Hub). Simple orchestration with Docker Compose for small-scale setups. Use Case: Ideal for local development, testing, and small-scale deployments.