Câu hỏi phỏng vấn Docker
Câu hỏi

What is the difference between Kubernetes and Docker?

Câu trả lời

The difference between Kubernetes and Docker lies in their roles and functionalities within the container ecosystem. Here is a detailed comparison:

Docker

  • Containerization Platform: Docker is primarily a containerization platform that allows developers to package applications and their dependencies into lightweight, portable containers. These containers ensure that applications run consistently across different environments, whether on a developer's laptop, in a data center, or in the cloud[1][3][4].
  • Core Components: Docker includes tools such as Docker Engine (for building and running containers), Docker Compose (for defining and running multi-container applications), and Docker Hub (a registry for sharing container images)[1][4].
  • Use Cases: Docker is ideal for local development, rapid prototyping, and simple single-host deployments. It simplifies the process of creating, distributing, and running containerized applications, making it a favorite for smaller projects or teams with less experience[2][3][4].

Kubernetes

  • Container Orchestration Platform: Kubernetes, often abbreviated as K8s, is an open-source container orchestration platform designed to automate the deployment, scaling, and management of containerized applications across clusters of hosts. It provides advanced features for workload distribution, scaling, and fault tolerance[1][3][4].
  • Core Components: Kubernetes manages containers through a control plane that includes components like the API server, scheduler, and controller manager. It organizes containers into logical units called "pods" and provides features like self-healing, load balancing, and storage orchestration[1][4][7].
  • Use Cases: Kubernetes is suited for complex, multi-node production environments that require scalability, resilience, and advanced orchestration capabilities. It is the preferred choice for large-scale deployments with multiple containers and needs such as automatic scaling, load balancing, and self-healing[2][3][4].

Key Differences

  • Functionality: Docker focuses on creating and running containers, while Kubernetes focuses on managing and orchestrating containers at scale[1][4][7].
  • Orchestration: Docker has its own orchestration tool called Docker Swarm, but it is less feature-rich comp...
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