Continuous delivery uses practices like Docker, Jenkins, and Mesos/Marathon to ensure code changes can be rapidly and safely deployed to production. Docker provides containerization which allows fast and robust deployment using images. Jenkins can be configured with plugins to build, test, and deploy Docker images to a Mesos/Marathon cluster for production. Mesos/Marathon provide scalability, fault tolerance, and resource sharing across frameworks and applications in a cluster.

1. CONTINUOUS DELIVERY
WITH JENKINS, DOCKER
AND MARATHON/MESOS
Julia Mateo
@juliamateodc
@duchessswiss http://jduchess.ch/
Monday, June 29, 15

2. GOAL
Monday, June 29, 15

3. CONTINUOUS DEPLOYMENT
VS CONTINUOUS DELIVERY
• Continuous delivery : series of practices designed to ensure that
code can be rapidly and safely deployed to production
• Continuous deployment is the next step of continuous delivery:
Every change that passes the automated tests is deployed to
production automatically
Monday, June 29, 15

4. CONTINUOUS DELIVERY
Source : http://xebia.github.io/cd-with-docker/#/
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5. From https://www.docker.com/whatisdocker/
Using Docker for
Continuous Delivery
• Docker is an open platform for developers
and sysadmins to build, ship, and run
distributed applications.
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6. DOCKERVSVMS
Server
Host OS
Hypervisor
Guest
OS
Guest
OS
Guest
OS
Guest
OS
Libs/
Bins
Libs/
Bins
Libs/
Bins
App 1 App 2 App 3 App 4
Libs/
Bins
Server
Host OS
Docker Engine
Libs/Bins
Libs/
Bins
App 1 App 2 App 3 App 4
c1 c2 c3 c4
VM1 VM2 VM3 VM4
Monday, June 29, 15

7. CONTAINERS AND
IMAGES
Docker
Images
Docker
Images
libcontainer, Union Filesystem
Centos Ubuntu
Jetty
add App.war
Container 1
OracleDB
Container 2
Read
only
Writable
Writable
Read
only
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8. TO SUM UP :
• Simple : container as deployment unit
• Fast : Only need to build/upload the ∆ image
• Robust : less scope of error than custom deployment scripts
• Other advantages : docker facilitates fast rollback
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9. FIRST STEP : DEPLOYTO
ONE NODE
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10. THE WEB APPTO DEPLOY
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11. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
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12. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
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13. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
Monday, June 29, 15

14. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
Monday, June 29, 15

15. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
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16. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
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17. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Monday, June 29, 15

18. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Monday, June 29, 15

19. DOCKER PUBLISH PLUGIN
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20. USING DOCKER INTO
DOCKER
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21. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Monday, June 29, 15

22. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Monday, June 29, 15

23. DOCKER PRIVATE
REPOSITORY
• Add the registry’s location to the repository name :
my.registry.address:port/repositoryname
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24. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
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25. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
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26. JENKINS SSH PLUGIN
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27. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Node 1
Node 2
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28. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
ssh jenkins plugin
Node 1
Node 2
Container 1
Container 2
Container 3
Container 4
Container 5
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29. PROBLEMS
• Scalability
• Fault tolerance
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30. NEXT STEP :
DEPLOYTO A MESOS
CLUSTER
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31. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish pluginnode1
Container 1
Container 3
Container 4
Container 5
Container 2
Http request plugin
Master
Executor
Marathon
Executor
Monday, June 29, 15

32. • Abstraction of cluster resources
• Share resources across multiple frameworks (versions of the
same fwk)
• Resource fair sharing : alternative to static partitioning
• Data locality
What is Mesos ?
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33. MESOS
ZK
Master Master
Executor Executor Executor
Executor ExecutorExecutor
Executor Executor Executor
Slaves
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34. HOW DOES IT WORK ?
http://mesos.apache.org/documentation/latest/mesos-architecture/
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35. USING MARATHON WITH
MESOS
• Marathon is a Mesos framework written in Scala
• Provides easy deployment of Docker containers
• Manages of long running apps
• Rest API for developers
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36. MARATHON
ZK
Master Master
Executor Executor Executor
Executor ExecutorExecutor
Executor Executor Executor
Slaves
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37. MARATHON
ZK
Master Master
Executor Executor Executor
Executor ExecutorExecutor
Executor Executor Executor
Slaves
Marathon
Monday, June 29, 15

38. DEPLOY WITH DOCKER :
TEST ENVIRONMENT
Localhost
docker publish plugin
Http request plugin
Master
Executor
Marathon
Executor
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39. JENKINS : HTTP REQUEST
PLUGIN
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40. DEMO
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41. USING HAPROXY FOR LOAD
BALANCING
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42. DEPLOYINGTO
PRODUCTION
• Canary releasing
• Blue Green deployment
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43. FEEDBACK FROM DEVELOPER
PERSPECTIVE
• Many technologies in a short time : ansible, docker, mesos,
marathon..
• All of them are quite recent technologies
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44. FEEDBACK FROM DEVELOPER
PERSPECTIVE
• Docker, Mesos/Marathon : developer friendly
• Big and growing community
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45. NEXT IMPROVEMENTS
• Fine grained proxy configuration, service discovery...
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46. THANK YOU !
QUESTIONS
?
Monday, June 29, 15