A talk given at HPTS 2015 conference in Pacific Grove, CA.

1. The rise of Docker, and the
future of computing
Arnaud Porterie - @icecrime - 2015-09-29 - HPTS

2. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Who am I?
• Arnaud Porterie, @icecrime on and
• Core maintainer of the Docker open source project
• Engineering manager at Docker

3. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
From dev to prod, what is
now different with Docker?

4. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
• Development dependencies described in a wiki page
• ~2 days process (when things go right)
• Team must keep the document up to date
Developer onboarding
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5. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Developer onboarding
• Docker value: the builder
• Development environment as code, with the
Dockerfile as the source of truth
• Universal: get code, docker build, docker run
• Docker own dev environment is in Docker

6. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Developer onboarding

7. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Continuous integration
• Traditionally: specific hosts test a specific app
• Managed by the individual dev teams
• “Works on my machine” syndrome

8. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Continuous integration
• Docker value: repeatability through isolation
• Running containers don’t share anything by default
• Tests don’t interfere with each other, no traces on host

9. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Continuous integration
• Docker value: universality of operations
• Standard way to build & run across languages & stacks
• Docker own tests are run in a Docker container

10. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
• Dependency management
• Specialized ops for a set of services
Deployment
Code
Development Test Production

11. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Deployment
• Docker value: unified artifact
• The Docker image is the artifact you build once, test,
ship & run in production

12. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
• Docker value: collaboration
• Docker Hub, on prem. Docker Registry
• Define deployment workflow, permissions
Deployment

13. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Summing it up
• Docker elegantly solves very common problems
• Makes modern best practices natural
• Repeatability (e.g., host independence)
• Immutability (the Docker image is the unit)
• Single responsibility principle (microservices)

14. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Docker is established as
an essential building block
for distributed applications

15. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
What’s next?

16. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
• Docker abstracts underlying OS differences
• Defines a unified API for processes management
Operating system

17. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
• Race for the “best OS for running containers”
Operating system

18. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Linux kernel
• Linux containers have existed for ~ a decade, but
never had as much attention than in the past 2 years
• Downside: aggressive kernel version requirements
can contribute to slowing down adoption

19. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Container runtime
• The Open Container Initiative
• Driven by a group of technical experts (Docker,
Google, RedHat, CoreOS, IBM, …)
https://www.opencontainers.org

20. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
User experience
• Docker succeeded at the frontier of dev & ops
• Containers are now in everybody’s hands
• Can one size fit all?

21. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Dev Ops
Docker
Early adopters
Want Docker end-to-end
Well established
Skeptics
Evaluating for production
Rapidly growing

22. Arnaud Porterie - @icecrime - 2015-09-29 HPTS

23. Arnaud Porterie - @icecrime - 2015-09-29 HPTS

24. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Orchestration
• Currently the biggest area of innovation
• Challenges: networking, storage, service discovery,
monitoring, log aggregation, …

25. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Orchestration
Will a standard for
orchestration emerge?

26. Arnaud Porterie - @icecrime - 2015-09-29 HPTS
Thank you!
Questions?
arnaud@docker.com