Docker

✅ Why use docker?

각 프로그램을 독립적인 컨테이너 환경에 이미지로 패키징하여 실행

• Portability: can install program regardless of environment
• no collision among other programs
• solves “it works on my machine” problem

✅ Docker

• tool to build, run applications on seperated containers

✅ Container

• a seperated, standalone environment to build/run applications
• like a mini computer(container) in a computer(host computer)
• has individual isolated disk(memory) and network(ip, port)

✅ Image

• blueprint/template for creating a container
• image is used to create a container
• has information for installing, running a program like code, pependencies, runtime

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