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Docker - a lot changed in a year

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GOTO Berlin presentation on the evolution of Docker

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Docker - a lot changed in a year

  1. 1. copyright 2014 1 Docker: A lot changed in a year Chris Swan, CTO @cpswan Cloud native networking
  2. 2. copyright 2014 2 TL;DR Docker is important for DevOps because it tightens iteration loops The core project developed very fast, but the ecosystem is now moving faster They did it with Docker
  3. 3. copyright 2014 3 Why me?
  4. 4. copyright 2014 Grid, Cloud, Docker 4
  5. 5. copyright 2014 Docker inside 5
  6. 6. copyright 2014 6 This is a DevOps track, so why do we care about Docker?
  7. 7. copyright 2014 John Boyd’s OODA loop
  8. 8. copyright 2014 8 In the beginning
  9. 9. copyright 2014 0.1.0 (2013-03-23) Used LXC Registry to push/pull images 9
  10. 10. copyright 2014 10 Where were we a year ago?
  11. 11. copyright 2014 0.6.6 (2013-11-06) Runtime •Ensure container name on register •Fix regression in /etc/hosts •Add lock around write operations in graph •Check if port is valid •Fix restart runtime error with ghost container networking •Add some more colors and animals to increase the pool of generated names •Fix issues in docker inspect •Escape apparmor confinement •Set environment variables using a file. •Prevent docker insert to erase something •Prevent DNS server conflicts in CreateBridgeIface •Validate bind mounts on the server side •Use parent image config in docker build •Fix regression in /etc/hosts 11 Client •Add -P flag to publish all exposed ports •Add -notrunc and -q flags to docker history •Fix docker commit, tag and import usage •Add stars, trusted builds and library flags in docker search •Fix docker logs with tty RemoteAPI •Make /events API send headers immediately •Do not split last column docker top •Add size to history Other •Contrib: Desktop integration. Firefox usecase. •Dockerfile: bump to go1.2rc3
  12. 12. copyright 2014 We still didn’t have • A regular release cycle • Compatibility with standard Linux distros • Links • Naming Much of that came in 0.7.0 towards the end of Nov 2013 12
  13. 13. copyright 2014 13 The watershed release
  14. 14. copyright 2014 0.9.0 (2014-03-10) Libcontainer (LXC gets thrown under the bus) 14
  15. 15. copyright 2014 0.9.1 (2014-03-24) Ubuntu 14.04 Centos 7 Etc. 15
  16. 16. copyright 2014 16 And then came DockerCon
  17. 17. copyright 2014 1.0.0 (2014-06-09) Notable features since 0.12.0 (2014-06-05) •Production support 17
  18. 18. copyright 2014 libcontainer 18
  19. 19. copyright 2014 libswarm 19
  20. 20. copyright 2014 libchan 20
  21. 21. copyright 2014 Since 1.0.0 exec create 21
  22. 22. copyright 2014 22 Shocker, Flocker, Clocker
  23. 23. copyright 2014 Shocker 23 The issue The response http://stealth.openwall.net/xSports/shocker.c https://news.ycombinator.com/item?id=7910117
  24. 24. copyright 2014 Flocker 24
  25. 25. copyright 2014 Clocker 25
  26. 26. copyright 2014 26 Composition
  27. 27. copyright 2014 Fig 27
  28. 28. copyright 2014 geard 28
  29. 29. copyright 2014 Panamax 29
  30. 30. copyright 2014 30 PaaS caught Docker
  31. 31. copyright 2014 Docker based PaaS 31
  32. 32. copyright 2014 Docker in PaaS 32
  33. 33. copyright 2014 PaaS == Opinionated? 33
  34. 34. copyright 2014 Docker might be the anti PaaS 34
  35. 35. copyright 2014 PaaS == Operationalised? 35
  36. 36. copyright 2014 36 Orchestration
  37. 37. copyright 2014 Everybody has one… 37
  38. 38. copyright 2014 Kubernetes is the one to watch 38
  39. 39. copyright 2014 This week… 39
  40. 40. copyright 2014 … not containerised cloud (yet) 40
  41. 41. copyright 2014 41 So why does it matter?
  42. 42. copyright 2014 Build, Ship > Run? 42 Image credit http://www.mediaagility.com/2014/docker-the-next-big-thing-on-cloud/
  43. 43. copyright 2014 Docker Hub 43 Image credit http://blog.docker.com/2014/06/announcing-docker-hub-and-official-repositories/
  44. 44. copyright 2014 Bottled software 44 Image credit CC Julio Morales https://www.flickr.com/photos/phooleo/4703216251
  45. 45. copyright 2014 45 There’s still a bunch of work to be done
  46. 46. copyright 2014 Containers don’t contain 46 With thanks to Dan Walsh @rhatdan Watch his DockerCon 2014 presentation at http://is.gd/dcrhdw
  47. 47. copyright 2014 47 The manifest problem
  48. 48. copyright 2014 Each active line creates a layer 48 Base OS Sources Update repos Install nginx Mod nginx.conf Mod index.html
  49. 49. copyright 2014 An image binds layers together 49 Base OS Sources Update repos Install nginx Mod nginx.conf Mod index.html
  50. 50. copyright 2014 Nginx example The image is the unit of deployment 50
  51. 51. copyright 2014 Nginx example What version of nginx is that? 51
  52. 52. copyright 2014 Nginx example What version of OpenSSL installed? 52 ?
  53. 53. copyright 2014 Nginx example and which bash? 53 ?
  54. 54. copyright 2014 54 My Docker wish list
  55. 55. copyright 2014 Feb 2014 Docker CLI Disk quotas Route propogation 55
  56. 56. copyright 2014 Nov 2014 Docker CLI Disk quotas Finer life cycle control 56
  57. 57. copyright 2014 If you want a better Docker Learn Go 57
  58. 58. copyright 2014 58 And another thing…
  59. 59. copyright 2014 Windows 59
  60. 60. copyright 2014 Governance 1. Mature tooling/CI process so project can scale (more) 2. Dealing with long outstanding pull requests 3. Clear separation between Docker the company and Docker the project (and clarification of MS relationship) 4. Clear articulation of roadmap 60
  61. 61. copyright 2014 Maintainers 61
  62. 62. copyright 2014 62 How did we come so far so fast?
  63. 63. copyright 2014 They used Docker 63
  64. 64. copyright 2014 64 Wrapping up
  65. 65. copyright 2014 65 TL;DR Docker is important for DevOps because it tightens iteration loops The core project developed very fast, but the ecosystem is now moving faster They did it with Docker
  66. 66. copyright 2014 66 Chicago, US ContactMe@cohesiveft.com   +1 888 444 3962 Questions?

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