Docker allows building and running applications in isolated containers. It provides a way to package applications with all their dependencies and ship them as standardized units called containers. Containers are more lightweight than virtual machines and allow applications to run anywhere regardless of the underlying infrastructure. Docker uses containerization at the operating system-level rather than hardware virtualization to deliver software in packages called containers. This allows applications to be easily deployed and scaled across computing infrastructure.

1. DOCKER
YGY

2. WHAT IS DOCKER?

3. WHAT IS DOCKER?
https://www.docker.com/what-docker

4. WHAT IS DOCKER?
https://www.docker.com/what-docker

5. WHAT IS DOCKER?
https://dic.naver.com

6. WHAT IS DOCKER?
https://www.docker.com/what-docker

7. WHAT IS DOCKER?
Docker
Load
Balancer
Application
Servers
Database
Server
Cache
Server

8. WHAT IS DOCKER?
• Build once and run anywhere(for developers)
• Configure once run anything(by devops)
• run everywhere and anything
• LXC(LinuX Container), chroot, jail
• Control Groups
• Aufs
• like GIT

9. WHAT IS CONTAINER?

10. WHAT IS CONTAINER?
• chroot
•
• . ,
• jail (on FreeBSD)
• chroot
• cgroups
• ,
• CPU

11. WHAT IS CONTAINER?
• LXC (LinuX Containers)
• jail
• chroot + cgroup
•
•

12. WHAT IS CONTAINER?
• Aufs (Advanced multi-layered unification filesystem)
• layered
• rootfs layer(container)
• Aufs

13. WHAT IS CONTAINER?
DockerGeneric

14. WHAT IS CONTAINER?

15. DOCKER VS VMS

16. DOCKER VS VMS
http://vmiss.net/2014/11/10/preparing-for-the-docker-journey/

17. DOCKER VS VMS
• VMS
•
•
•
•
• .
https://blog.jayway.com/2015/03/21/a-not-very-short-introduction-to-docker/

18. DOCKER VS VMS
• Docker
• Host OS
•
• like GIT
• Docker Hub
•
•
https://blog.jayway.com/2015/03/21/a-not-very-short-introduction-to-docker/

19. USE DOCKER

20. USE DOCKER
• Docker Install
•
• https://www.docker.com/get-docker
• Linux VM Container
• Docker Engine VM Container .
•

21. USE DOCKER
Run nginx

22. USE DOCKER
Remove Container
stop:
rm:
rmi:

23. YOGIYO DEVELOPMENT ENVIRONMENT
USING DOCKER

24. YOGIYO DOCKER DEVELOPMENT ENV
memcached
redis
Postgres
nginx
rabbitMQ
Python
Application
Database
HostOS
Docker VM
Postgres

25. DOCKER EXERCISE

26. http://docker.atbaker.me/