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Docker vs. Kubernetes - Knowing the Difference

Docker vs. Kubernetes - Knowing the Difference

If you're stepping into the world of containers. This comparison makes things clear. 👇

🟦 Docker.

Your App Package + Dependencies

Create a container image

Run containers on a single host.

Suitable for easy development, testing and deployment.

🟨 Kubernetes.

Use the Docker image (or other container runtime).

Orchestra container at the level.

Manage automatic scaling, balance the load, heal yourself.

Designed for production and distribution systems.

Docker = Create & Run Container

Kubernetes = Manage and resize the container

They're not competitors - they work together.

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# Recap 2025 # Take care of yourself # Open budget

# Docker # Kubernetes

2025/12/22 Edited to

... Read moreในโลกของเทคโนโลยีคอนเทนเนอร์ Docker และ Kubernetes ถือเป็นสองแพลตฟอร์มที่สำคัญสำหรับนักพัฒนาระบบและผู้ดูแลระบบภายในองค์กร Docker ช่วยให้ผู้ใช้สามารถแพกเกจแอปพลิเคชันและการพึ่งพาให้อยู่ในรูปแบบของภาพคอนเทนเนอร์ซึ่งสามารถรันได้บนโฮสต์เดียวกัน เหมาะสำหรับการพัฒนาและทดสอบโปรแกรมที่ต้องการความรวดเร็วและง่ายดาย ในขณะที่ Kubernetes มีบทบาทในการบริหารจัดการคอนเทนเนอร์ในระดับที่ซับซ้อนมากขึ้น เช่น การออร์เคสตราต จัดการปรับขนาดอัตโนมัติ ปรับสมดุลภาระ (Load balancing) และรักษาความเสถียรของบริการอย่างต่อเนื่อง Kubernetes สามารถทำงานร่วมกับ Docker Runtime หรือรันไทม์คอนเทนเนอร์อื่น ๆ ในการจัดการ Container Pods ที่ประกอบด้วยแอปพลิเคชันต่าง ๆ ได้อย่างมีประสิทธิภาพ โดยมี Master Node ควบคุมชุดคำสั่ง API Server, Scheduler, Controller-Manager และ Key Value Store เพื่อบริหารจัดการการทำงานของ Worker Node ที่ดำเนินงานจริงผ่าน Kubelet ที่ติดตั้งบนแต่ละโหนด การทำงานร่วมกันของ Docker และ Kubernetes ช่วยให้การพัฒนาแอปพลิเคชันแบบไมโครเซอร์วิสมีความยืดหยุ่นและสามารถปรับขนาดได้ตามความจำเป็นเมื่อต้องใช้งานจริงในสภาพแวดล้อมระบบการผลิต นอกจากนี้ Dockerfile ซึ่งใช้สำหรับกำหนดขั้นตอนการสร้างภาพคอนเทนเนอร์ เป็นสิ่งจำเป็นที่ช่วยให้เกิดความปลอดภัยและการควบคุมเวอร์ชันของแอปพลิเคชัน นอกจากการใช้งานโดยทั่วไปแล้ว ผู้ใช้ยังสามารถปรับแต่งการตั้งค่าเครือข่ายสำหรับคอนเทนเนอร์ รวมถึงการตั้งค่า Service Discovery เพื่อให้แอปพลิเคชันสามารถค้นหาและเชื่อมต่อกันได้อย่างราบรื่น การเข้าใจความแตกต่างและหน้าที่ของ Docker และ Kubernetes จะทำให้ผู้พัฒนาและผู้ดูแลระบบสามารถออกแบบระบบที่เหมาะสมกับการทำงานและมีประสิทธิภาพสูงสุด

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