Here are the slides from Diane Mueller and Daniel Dreier's PuppetConf 2016 presentation called Using Puppet with Kubernetes and OpenShift. Watch the videos at https://www.youtube.com/playlist?list=PLV86BgbREluVjwwt-9UL8u2Uy8xnzpIqa

1. Using Puppet With
Kubernetes and OpenShift
Diane Mueller, Red Hat
Daniel Dreier, Puppet

2. Our Agenda Today
● OpenShift is Enterprise-Ready Kubernetes for Developers
● Puppet provides a common configuration modeling layer
across container platforms and traditional infrastructure
● Both shift focus from infrastructure to applications
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3. Infrastructure is distracting
Applications are the important part
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4. Infrastructure is distracting
● Same basic patterns endlessly re-implemented
● Too much friction for developers
● Impedance mismatch of declarative languages and underlying
OS
● Humans make decisions that computers should
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5. Significant business impact
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6. Business Impact
1. Our time goes into low-value integration work
2. Hardware is under-utilized
3. Useful tools don’t get deployed
4. Infrastructure is unnecessarily fragile
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7. Enter Kubernetes
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8. CIO perspective
“The main point here is that OpenShift, with its
support for Docker and Kubernetes, is helping
clients with their container deployments,
which CIOs view as a more important
strategic decision than what underlies those
workloads.”
Barclays PLC
Analyst
Source: Barclays Research Report
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9. OpenShift is Kubernetes
OpenShift provides common developer-centric workflows across all applications
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10. What Is OpenShift?
● Use containers for efficiency
● Hide details of underlying
infrastructure with app specific
abstractions
● Portable across different clouds or
bare metal
● Package my application and all of
its dependencies
● Deploy to any environment in
seconds and enable CI/CD
● Config driven approach - possible
to define application in bulk
INFRASTRUCTURE APPLICATIONS
Application-centric Platform

11. Why OpenShift?
Provide a secure multi-tenant distribution of Kubernetes
Optimized for team software development and deployment
Able to create and deploy applications in seconds
And run and support all of the stateful parts of an application
Easily.
How is it different from Kubernetes?

12. OpenShift Goals
Make Kubernetes the best place to run all applications
Provide well integrated tools to empower developers
Ensure that applications can be portable to any environment
Put extra resources to use for developers
What is the mission of OpenShift Origin

13. 10,000 foot overview from kernel to the app

14. OpenShift runs on your choice of infrastructure

15. Nodes are instances of RHEL where apps will run

16. Apps and components run in containers
Container
Image
Container
Pod

17. Health and Scaling

18. Pods are the orchestrated unit in OpenShift

19. What about app data?

20. Routing layer for external accessibility

21. Access via Web UI, CLI, IDE, API

22. Puppet’s Role
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Configuration Modeling

23. Declarative
Set a target
temperature and the
thermostat turns the
furnace on and off
Imperative
The furnace turns on
and off on command
Modeled
Software logic
changes desired
temperature based on
many factors
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Furnace Abstraction Layers

24. Declarative
Types and providers
assert and enforce a
desired state
Imperative
Commands run by
Puppet types and
providers
Modeled
Puppet code
determines the
desired state
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Abstractions for managing servers

25. Declarative
Two nginx pods
should be running
right now
Imperative
Run nginx right now
Modeled
Puppet code specifies
two nginx pods in
staging, and four in
production
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26. Common Modeling Layer
What Puppet Can Model
● Underlying OS
● Container contents
● Kubernetes and OpenShift resources
● Interactions with existing infrastructure
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27. Don’t go back to writing shell scripts.
(We’ve been through this before)
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28. Demo Time
Puppet OpenShift Workflow
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29. Significant Benefits
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30. Enterprise Customers of OpenShift

31. Business Challenges
● Need to match traveler’s reservation requests to various
providers’ inventory (airlines, hotels, etc.)
● Dealing with constant updates from provider systems all
over the world
● Must deliver high consistency and fast response times
● Managing very high request volumes of up to ~210,000
queries per second at peak
● Application-centric deployments, deploying the
application as a whole with all of its dependencies.
● Automated scheduling across the cluster, decoupling
‘what should run’ from ‘where it should run’
● Able to support different types of applications, not
limited to HTTP or stateless services
● Improved operational model and greater efficiency
Key Benefits
Production Workloads @ Scale

32. Business Value
1. 8 months pay back on the initial investment
2. ~530% ROI over 5 years
3. 66% faster app delivery and deployment
4. 35% reduction in AppDev staff time
5. 20% improvement in IT staff productivity
6. 40% reduction in infrastructure costs
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Source: IDC October, 2016

33. Healthy Ecosystem
Commercial and Open Source Projects
● Google has 100 engineers on Kubernetes
● RedHat supports OpenShift Container
Platform
● 912 Github contributors on Kubernetes
● 613 GitHub contributors on OpenShift Origin
● Puppet improving container story
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34. 34

35. https://github.com/openshift/origin

36. 230+ member orgs
collaborationg at scale
57+ contributing orgs
contributing code
800+ individuals
peers on mailing list
230 publicly listed as of Oct 11

38. Conclusions
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Using all three together
● Provides common workflows for
deploying and managing containers
● Minimize toil
● Improve Hardware utilization
● Improve Application availability
● Provide cloud portability
Major Components
● Kubernetes provides the underlying platform
● OpenShift provides developer-friendly
workflows
● Puppet provides a common language for
configuration modeling

39. Further Reading
Getting Started Links
Citations
● Power icon by Kirill Zorenkov from the Noun Project
● thermostat icon by Dan Jenkins from the Noun Project
● algorithm by Hugo Alberto from the Noun Project
● terminal by Souvik Maity from the Noun Project
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