Docker란?

Docker란 컨테이너 기반으로하는 오픈소스 가상화 플랫폼이다. 

하나의 서버에 여러개의 컨테이너를 실행하면 서로 영향을 미치지 않고 독립적으로 실행되며 사용성이 용이하다.

 

• Flexible: Even the most complex applications can be containerized.
• Lightweight: Containers leverage and share the host kernel, making them much more efficient in terms of system resources than virtual machines.
• Portable: You can build locally, deploy to the cloud, and run anywhere.
• Loosely coupled: Containers are highly self sufficient and encapsulated, allowing you to replace or upgrade one without disrupting others.
• Scalable: You can increase and automatically distribute container replicas across a datacenter.
• Secure: Containers apply aggressive constraints and isolations to processes without any configuration required on the part of the user.

도커는 컨테이너 실행에 필요한 파일과 설정들을 포함한 이미지를 저장한다.

 

출처 https://docs.docker.com/get-started/