Upgrade to Pro — share decks privately, control downloads, hide ads and more …

ContainerCon North America – Cloud Anti-Patterns

Casey West
August 23, 2016

ContainerCon North America – Cloud Anti-Patterns

Casey West

August 23, 2016
Tweet

More Decks by Casey West

Other Decks in Technology

Transcript

  1. A word about consent… Please do: Take pictures, tweet, take

    notes. Please don't: Record or live stream without my explicit consent. 2 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  2. Cloud Anti-Patterns • Twitter @caseywest • Email [email protected] • Web

    http://caseywest.com 3 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  3. Act One The five stages of cloud-native 5 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  4. The five stages of cloud- native 1. Denial 2. Anger

    3. Bargaining 4. Depression 5. Acceptance 6 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  5. Have a seat on the couch 7 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  6. Now for some basic ground rules 9 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  7. Rules We will talk about your delivery pipeline 10 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  8. Rules We will talk about your architecture 11 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  9. Rules We will talk about your automation 12 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  10. "Deploying my apps to 'the cloud' is paintful. Why?" 14

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  11. Denial Containers are just like tiny virtual machines 16 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  12. Denial We don't need to automate continuous delivery 17 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  13. Anger Dev is just #YOLO-ing shit to production 20 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  14. Bargaining We crammed this monolith into a container and called

    it a microservice 22 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  15. Bargaining What if we create "microservices" that all talk to

    the same data source? 24 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  16. Depression We made 200 microservices and forgot to set up

    jenkins 26 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  17. Depression We have an automated build pipeline but release twice

    a year 27 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  18. Acceptance Small batch size works for replatforming, too 32 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  19. Cloud-native operability is* 1. Microservices Architecture 2. Devops Culture 3.

    Continuous Delivery Pick Any Three * Not always true. 36 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  20. You must be this tall to ride this ride 38

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  21. Audience Participation • Containers? • Schedulers? • Cloud? 39 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  22. Docker Docker Docker Docker Docker Docker Docker Docker 40 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  23. 1: One codebase tracked in revision control, many deploys 42

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  24. Anti-pattern Building separate images for staging and production 43 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  25. Anti-pattern Tags for dev and prod 44 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  26. Best Practice Use the environment and/or feature flags 45 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  27. Best Practice Declare version numbers of upstream dependencies 49 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  28. Best Practice Depend on base images for default filesystem and

    runtimes 50 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  29. 3: Store config in the environment 51 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  30. Best Practice This one is literally about environment variables 55

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  31. Best Practice This one is literally about environment variables !

    ‑ 56 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  32. 4: Treat backing services as attached resources 57 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  33. Best Practice Connect to network- attached services using connection info

    from the environment 61 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  34. 5: Strictly separate build and run stages 62 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  35. Best Practice Build immutable images then run those images 64

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  36. Painfully Obvious Best Practices 1. Eat when hungry 2. Sleep

    when tired 3. Book Casey West for speaking gigs 65 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  37. Best Practice Respect the lifecycle: build, run, destroy 66 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  38. 6: Execute the app as one or more stateless processes

    67 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  39. Best Practice Schedule LRPs by distributing them across a cluster

    of physical hardware 68 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  40. Anti-pattern NFS Need I say more? 70 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  41. 7: Export services via port binding 71 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  42. Best Practice my $port = $ENV{PORT}; 73 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  43. Best Practice private String getPort() { Map<String, String> env =

    System.getenv(); return env.get("PORT"); } 74 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  44. 8: Scale out via the process model 76 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  45. Best Practice Horizontally scale by adding instances 77 ! @caseywest

    #containercon #linuxcon #containers #realworld #sorrynotsorry
  46. 9: Maximize robustness with fast startup and graceful shutdown 78

    ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  47. 10: Keep development, staging, and production as similar as possible

    79 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  48. Best Practice Run containers in development 80 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  49. 11: Treat logs as event streams 81 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  50. Anti-pattern Random log files #yolo'd all over the file system

    82 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  51. Best Practice STDOUT STDOUT STDOUT STDOUT 83 ! @caseywest #containercon

    #linuxcon #containers #realworld #sorrynotsorry
  52. 12: Run admin/ management tasks as one-off processes 84 !

    @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  53. Best Practice Reuse application images with specific entrypoints for tasks

    86 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry
  54. More factors? • API first • Secrets management • Health

    metrics • Global distribution 87 ! @caseywest #containercon #linuxcon #containers #realworld #sorrynotsorry