Andrew T. Baker - Demystifying Docker

Docker was one of last year’s most talked about open source projects - but what is it? And what does it mean for deploying applications? This talk will explain what Docker is and where it fits in with other deployment techniques. Attendees will learn the fundamentals of Docker, see some practical examples of how Docker is used, and consider if Docker could be a useful addition to their platform.

https://us.pycon.org/2015/schedule/presentation/417/

Transcript

1. Demystifying Docker Demystifying Docker
2. Andrew T. Baker Andrew T. Baker Software developer Blog: Twitter: Docker Hub: http://www.andrewtorkbaker.com @andrewtorkbaker atbaker
3. About you About you
4. Today Today What is Docker? Docker in practice Docker's past, present, and future Trying it yourself Questions
5. "It worked in my "It worked in my development environment" development environment"
6. The promise of Docker: The promise of Docker: Build once, run anywhere
7. What is Docker? What is Docker?
8. Virtualization tool? Configuration manager? VM manager? cgroups? LXC? libvirt? go?
9. Docker.com says Docker.com says Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications.
10. Less portable, Less portable, minimal overhead minimal overhead Most portable, Most portable, lots of overhead lots of overhead Manual configuration Traditional VMs CM tools Docker
13. Docker in practice Docker in practice
22. Containers Containers How you run your application Images Images How you store your application
23. Dockerfiles Dockerfiles # Set the base image to Ubuntu FROM ubuntu # Update the repository sources list RUN apt-get update # Install MongoDB package (.deb) RUN apt-get install -y mongodb-10gen # Create the default data directory RUN mkdir -p /data/db # Expose the default port EXPOSE 27017 # Default command to start the database CMD ["usr/bin/mongod", "--port 27017"]
24. Docker library images Docker library images
25. Docker's past, Docker's past, present, and future present, and future
26. Familiar origins Familiar origins
27. Tons of open Tons of open source projects! source projects!
28. Dependency-heavy utilities Dependency-heavy utilities
29. 2014 2014 Get to 1.0 (production-ready) Establish partnerships Round out some rough edges (v1.3) 2015 2015 Make Docker easier to use Popularize best practices for scaling "Include more batteries"
30. Trying it yourself Trying it yourself
31. 1 1 Go all in on a Go all in on a non-essential service non-essential service (avoid using Docker for just development)
32. 2 2 Use the official Use the official base images base images (but don't be afraid to build your own)
33. 3 3 Install docker-compose Install docker-compose right after you install Docker right after you install Docker
34. 4 4 Keep an eye on docker- Keep an eye on docker- machine and docker-swarm machine and docker-swarm
35. 5 5 Check out my tutorial Check out my tutorial http://docker.atbaker.me http://docker.atbaker.me
36. Questions? Questions? Tutorial: Blog: Twitter: http://docker.atbaker.me http://www.andrewtorkbaker.com @andrewtorkbaker Thanks to these people who answered questions and gave me feedback for this talk: (Docker) (Twilio) dev team The dev team 's Python team Jérôme Petazzoni Matt Makai The Motley Fool TrackMaven Excella Consulting