Doing Awesome Things With Docker

Transcript

1. Doing awesome things with Docker! ! Brian Goff, Docker Inc @cpuguy83 container42.com
2. Some Awesome Things: • Doctor Who • Star Wars • My Kids In no particular order
3. Some Awesome Things: And of course:
4. • User since October 2013 • Docker employee June 2014 • Maintainer of Docker open source project • Have used Docker in production envs • Am an introvert That’s me!
5. What is Docker?
7. What is Docker? Deploy Everything • Webapps • Backends • SQL, NOSQL • Big Data • Message Queues • … and more
8. What is Docker? Deploy most Everywhere • Linux Servers • VM’s or Bare metal • EC2, GCE, IBM, Azure, <insert IaaS or vps> • Any distro (with some kernel requirements) • (some success on ARM)
9. What is Docker? Deploy Reliably If it works on your laptop, it works… Everywhere… • Production • Contributors laptop • Scaled across a cluster
10. Ok… But how?
11. What is Docker?
12. What is Docker? Matrix from Hell
13. What is Docker?
14. What is Docker? Also a Matrix from Hell
15. What is Docker? Solution: Intermodal Shipping Container
16. Ok… But how? Containers
17. What is Docker? Container System for Code
18. What is Docker? Container System for Code
19. Ok… so it’s a VM?
20. What is Docker? Linux Containers - Like a light-weight VM
21. What is Docker? Linux Containers - Like a light-weight VM • Own process space • Own network interface • Can run stuff as root • Limit CPU/RAM/disk • Share kernel with host • No device emulation (or HVM or PV) • limit root capabilities inside container Demo!
22. What is Docker? Ecosystem - Docker Hub
23. What is Docker? Ecosystem - Docker Hub • Over 30,000 “Dockerized” applications • Private Repos • Automatic Builds • Webhooks • Like GitHub, for Docker
24. What is Docker? Engine • github.com/docker/docker • Over 15,000 stars on GH • Over 600 contributors
25. Building an image • Like git commits (but not) • Uses Copy-on-Write filesystem Dockerfile
26. Boot2Docker • Minimal Linux distro (~27MB ISO!) • Boots in 5 seconds • Has installer for seemless local/dev env in VM • Has a Dockerfile
27. Docker Restart Policies • Added in Docker 1.2 • Monitor container health • More efficient than external monitoring • always • on-failure • never
28. DockerHub Automated Builds • Supports Github and BitBucket • Trigger build on `git push`
29. Automated Builds - Webhooks • Automatically deploy on git push • Or test • Or … ?
30. nucleotid.es ! • For Scientists • Genome assemblers • Uses Docker
31. Rails Demo github.com/cpuguy83/docker-rails-dev-demo • Optimized for building in docker • Optimized shipping as an image • Do development, run tests, put in prod • With the same exact image
32. What is Docker? A tool • For developers • For sysadmins • For building systems • For change
35. Doing awesome things with Docker! ! Brian Goff, Docker Inc @cpuguy83 container42.com Questions?