This document discusses Docker, an open platform for distributed applications for developers and sysadmins. It introduces Docker, demonstrates how to build and run a Docker container for a library system, and outlines Docker commands. The document also discusses Docker's technical overview using isolation, cgroups, AUFS, and Dockerfiles. Finally, it mentions Docker's future directions including libcontainer, libswarm, and libchan.

1. Docker at a glance
Philip Wang

2. Agenda
• Docker introduction
• Demo
• Docker’s future

3. What is Docker
Build, Ship and Run
Any App, Anywhere
http://www.docker.io

4. Why Docker
Static Website
Web frontend
Background Workers
The hell of the matrix
User DB
Analytics DB
Queue
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5. Why Docker
• Developers View
• Operations View
Continuous Deployment

6. Technical overview of Docker
• Isolation
– LXC
– pid、net、ipc、mnt、uts、user
• cgroups (Control Groups)
• AUFS (Another Union File System)

7. http://docs.docker.com/terms/image/

8. http://docs.docker.com/terms/filesystem/

9. http://docs.docker.com/terms/filesystem/image/

10. http://docs.docker.com/terms/image/

11. http://docs.docker.com/terms/container/

12. Docker commands

13. Docker commands
docker [OPTIONS] COMMAND [arg...]
• docker run
• docker ps
• docker stop|start|restart
• docker build
• docker rm
• docker rmi
• docker logs

14. Demo
• Build image
• Run container
• Ship container
• Run container from another place
Library system
•Java 7
•Liferay 6.1
•MySQL

15. Dockerfile
# Build Liferay image
FROM prftgdcchina/liferay-6.1.2
MAINTAINER philip wang <philip.wj@gmail.com>
# Add the library system specific files
ADD Company_Logo1.png /liferay/tomcat-7.0.40/webapps/ROOT/html/themes/classic/images/
ADD libraryLogo /liferay/data/document_library/0/0/10647.jpg/1.0
ADD custom.css /liferay/tomcat-7.0.40/webapps/ROOT/html/themes/classic/css/
ADD portal-ext.properties /liferay/
# Add the library war file to the deploy folder
ADD Library-1.0-SNAPSHOT.war /liferay/deploy/
# Expose the ports
EXPOSE 8080
# Start liferay
CMD /bin/sh /liferay/tomcat-7.0.40/bin/startup.sh && tail -f /liferay/tomcat-7.0.40/logs/catalina.out

16. Docker Ecosystem

17. Docker’s future
• Core capabilities (libcontainer)
• Cross service management (libswarm)
• Messaging between containers (libchan)

18. Reference
• www.docker.io
• www.infoq.com/cn/dockers/