Docker 對傳統 DevOps 工具鏈的衝擊 (Docker's Impact on traditional DevOps toolchain)

1. William Yeh Architect @ Gogolook   2015-12-10

2. Albert Camus

3.      

4. 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong Do you have basic infrastructure? (2015-11-18) http://www.robustperception.io/do-you-have-basic-infrastructure/

5. public network 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong private network CDN LB API servers DB servers 1.1 - 1.2 -

6. 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong private network CDN LB API servers DB servers public network .1 - .2 -

7. 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong private network CDN LB API servers DB servers public network detection recovery diagnosis

9. hardware bare metal OS runtime app VM hardware OS runtime app hypervisor

10. VM hardware OS runtime app hypervisor

11. VM hardware OS runtime app hypervisor Docker hardware OS runtime app hypervisor container

12. Docker hardware OS runtime app hypervisor container We know: • Container is faster than VM • Container is lightweight • Dockerized app anywhere… What if… • An OS runs only containers?

13. Docker hardware OS runtime app hypervisor container CoreOS RancherOS Red Hat Atomic VMware Photon Snappy Ubuntu Core Windows Nano Server

14. Docker hardware OS runtime app hypervisor container Container per VM hardware OS runtime app hypervisor container

15. Container per VM hardware OS runtime app hypervisor container Intel Clear Linux http://www.ithome.com.tw/news/96119 Hyper https://hyper.sh/

16. Container per VM hardware OS runtime app hypervisor container Unikernel hardware library OS app hypervisor unikernel  app stack

17. Unikernel hardware library OS app hypervisor unikernel  app stack Unikernels are constructed by using “library operating systems,” from which the developer selects only the minimal set of services required for an application to run.

18. Unikernel hardware library OS app hypervisor unikernel  app stack MirageOS https://mirage.io/ Boxfuse https://boxfuse.com/ ClickOS Clive HaLVM LING Rump Kernels OSv

19. Unikernel image Immutable infrastructure

20. public network 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong private network CDN ELB API servers DB servers 1.1 - 1.2 -

21. service consolidation resourceisolation native app VM container per VM unikernel Docker

23. public network private network API servers JDK app server (Tomcat, …) app (jar, war, …) Node.js runtime npm app source Python runtime pip uWSGI/Gunicorn app source

24. public network private network DB servers JDK Elasticsearch JDK CassandraMongoDBMySQL dependenciesdependencies

25. public network private network LB HAProxynginx AWS ELB dependenciesdependencies

26. JDK app server (Tomcat, …) app (jar, war, …) Node.js runtime npm app source Python runtime pip uWSGI/Gunicorn app source JDK Elasticsearch JDK CassandraMongoDBMySQL dependenciesdependencies HAProxynginx AWS ELB dependenciesdependencies

27. JDK app server (Tomcat, …) app (jar, war, …) Node.js runtime npm app source Python runtime pip uWSGI/Gunicorn app source JDK Elasticsearch JDK CassandraMongoDBMySQL dependenciesdependencies HAProxynginx AWS ELB dependenciesdependencies DevOps tools • Configuration management • Build system • Deployment pipeline • Continuous integration

28. JDK app server (Tomcat, …) app (jar, war, …) Node.js runtime npm app source Python runtime pip uWSGI/Gunicorn app source JDK Elasticsearch JDK CassandraMongoDBMySQL dependenciesdependencies HAProxynginx AWS ELB dependenciesdependencies Docker runtime app image immutable image versioned image dev/prod parity Dockerfile docker build docker push docker pull

30. uniform Docker Config management will only be used to install Docker, an orchestration system, configure PAM/SSH auth, and tune OS sysctl values. traditional DevOps toolchain tedious … Basically anything not having to do with app deployment. https://blog.containership.io/containers-vs-config-management-e64cbb744a94

32. public network private network API servers As the number of machines grows… how to ensure better allocation?

33. pets cattle

34. pets cattle naming?

35. pets cattle dispensable?

36. pets cattle naming? dispensable?

37. pets cattle PaaS Hadoop MapReduce AWS Lambda AWS Kinesis Google Dataflow

38. public network private network API servers As the number of machines grows… how to ensure better allocation?

39. Traditional app OS runtime app tight interaction host resources pets

40. https://prezi.com/e7sdy9rdujgp

41. public network private network API servers better mobility cattle

42. public network private network API servers even better mobilitycontainer cattle independent of underlying machines

43. cattle Docker Swarm Mesos Kubernetes allocation, orchestration

45. Docker Swarm Mesos Kubernetes Config management will only be used to install Docker, an orchestration system… traditional DevOps toolchain … Don’t assume too much about underlying infrastructure. cattlepets

46. cattle Long Running Services • Aurora • Marathon • Singularity • SSSP Batch Scheduling • Chronos • Jenkins • JobServer Big Data Processing • Cray Chapel • Dpark • Exelixi • Hadoop • Hama • MPI • Spark • Storm Data Storage • Cassandra • Elasticsearch • Hypertable Mesos framework

47. cattle Mesos

48. 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong .1 - .2 - private network CDN LB API servers DB servers public network

49. private network LB API servers DB servers • Rolling upgrade • Blue/green deployment • Canary deployment Traditional app • in-place update • immutable infra

50. public network private network API servers immutable imagescontainer cattle independent of underlying machines

52. kubectl rolling-update my-nginx --image=nginx:1.9.1 • Rolling upgrade • Canary deployment • use label Kubernetes

53. Mesos http://blog.qubit.com/opensourcing-bamboo-automated-mesos-marathon-load-balancing http://www.slideshare.net/johnadowns/making-developers-happier-with-mesos-docker-and-marathon

54. Universal Control Plane https://www.docker.com/universal-control-plane

55. public network 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong private network CDN ELB API servers DB servers .1 - .2 -

56. Docker Swarm Mesos Kubernetes traditional DevOps toolchain Consider the benefits: • immutable infrastructure • automated allocation • automated orchestration cattlepets

57. private network CDN LB API servers DB servers Key Takeaways

58. 1. How to recreate your system 2. How to safely change your system 3. When something has gone wrong Do you have basic infrastructure? (2015-11-18) http://www.robustperception.io/do-you-have-basic-infrastructure/

59. service consolidation resourceisolation native app VM container per VM unikernel Docker Immutable infrastructure

60. uniform Docker Config management will only be used to install Docker, an orchestration system… anything other than app deployment. traditional DevOps toolchain tedious

61. Docker Swarm Mesos Kubernetes traditional DevOps toolchain … Don’t assume too much about underlying infrastructure. cattlepets

63. http://send.wtf/docker2015

Docker 對傳統 DevOps 工具鏈的衝擊 (Docker's Impact on traditional DevOps toolchain)

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