docker ata glance
TRANSCRIPT
Docker at a glance
Philip Wang
Agenda
• Docker introduction• Demo• Docker’s future
What is Docker
Build, Ship and Run
Any App, Anywhere
http://www.docker.io
Why Docker
The hell of the matrix
Static Website
Web frontend
Background Workers
User DB
Analytics DB
Queue
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Why Docker
• Developers View• Operations View
Continuous Deployment
Technical overview of Docker
• Isolation – LXC – pid、 net、 ipc、mnt、 uts、 user
• cgroups (Control Groups)• AUFS (Another Union File System)
http://docs.docker.com/terms/image/
http://docs.docker.com/terms/filesystem/
http://docs.docker.com/terms/filesystem/image/
http://docs.docker.com/terms/image/
http://docs.docker.com/terms/container/
Docker commands
Docker commands
• docker run• docker ps• docker stop|start|restart• docker build• docker rm• docker rmi• docker logs
docker [OPTIONS] COMMAND [arg...]
Demo
• Build image• Run container• Ship container• Run container from another place
Library system•Java 7•Liferay 6.1•MySQL
Dockerfile# Build Liferay image
FROM prftgdcchina/liferay-6.1.2
MAINTAINER philip wang <[email protected]>
# 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
Docker Ecosystem
Docker’s future
• Core capabilities (libcontainer)• Cross service management (libswarm) • Messaging between containers (libchan)
Reference
• www.docker.io• www.infoq.com/cn/dockers/