- A cloud-native application platform can enable organizations to transform by providing speed to market, better customer experiences, and engaging their workforce. - Key elements of such a platform include continuous delivery, immutable infrastructure, blue/green deployments, self-service provisioning, environment parity, and a self-healing elastic runtime. - A cloud-native microservices architecture can provide benefits like independent scaling of services, independent development cycles, experimentation, and resilience. Managing microservices requires services for configuration, service registration, circuit breaking, and monitoring.

1. TRANSFORMATION
It Takes a Platform
A Cloud-native Application Platform
Cornelia Davis
CTO, Transformation Practice
Pivotal
@cdavisafc

2. Enable Speed to Market
Deliver Better Customer
Experience and More Value
Engage Workforce
Why Transform?

3. TIME
EXPERIENCE
&
EFFICIENCY
Traditional IT
Disruptors
INNOVATION GAP
IaaS
+ Automation
What does it take to compete?
• Agile, Developer Productivity, TDD, Pairing
• A Platform that supports Continuous Delivery
• Streamlines the Devops cycle
• Optimizes for Modern Application Architectures
• and more…

4. 4
Continuous Delivery
Business Drivers Decide Release
(not technical readiness)

5. A Seattle book store
deploys code, on average,
every second

6. Why?
SPECULATION

7. Risk Accumulation
SPECULATION
RISK

8. Experimentation Reduces Risk
SPECULATION
ITERATION ITERATION ITERATION ITERATION ITERATION

9. 9
Devops
Eliminate Friction

10. Obstacles
• Silos: Dev, QA, Operations is
typical. No shared common goal
• Dissimilar Environments - “It works
on my machine”
• Risky Deployments: Manual steps,
done “off hours”
• Changes are treated as an
exception, not the norm
→Firefighting
• Processes designed around these
obstacles

11. It Takes a Platform
People
http://radar.oreilly.com/2007/10/operations-is-a-competitive-ad.html

12. Application Dial Tone
12
Emits application “dial tone”
• Config
• Runtime
• Logs
• Metrics
• Health Management
• Security
• Operations
Your Application
Code
Virtualized
Infrastructure

13. Enabling Devops - Teams Delivering Outcomes
3
Database
Web
Server
Messaging
Your Application
Code
Virtualized
Infrastructure
PAAS
Platform Team
Application Team
• Deploys platform
• Makes standard runtimes and services
available
• Monitors platform
• Scales platform (ensuring
sufficient capacity)
• Upgrades platform with zero-downtime
• Creates deployable
artifact
• Config Prod environment
• Deploys application to Prod
• Monitors application
• Scales application (capacity)
• Deploys new app version with
zero downtime.

14. Essential Elements to Enabling Devops
14
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT

15. Single Deployable Artifact
15
Commit
Tests
Integration
Tests
Deployable
Artifact
Deploy to CF
Test Env
Deploy to
Prod
• Developer crafted (before impl.)
• Stubs/mocks external services
• Developer executed (before commit)
• CI executed (after commit)
(after commit)
• Developer or QA crafted
• CI executed
• Runtime context (buildpack applied)
• Binds to test services (DB, messaging, etc.)
• “cf push”
• Runtime context (buildpack applied)
• Binds to test services (DB, messaging, etc.)
• Periodic smoke tests
• “cf push”
• Runtime context (buildpack applied)
• Binds to prod services (DB,
messaging, etc.)
• Periodic smoke tests
• Monitoring
? ?

16. Essential Elements to Enabling Devops
16
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT
• Self-service, Rapid Provisioning/
Deprovisioning
AGILITY
• Environment parity
NO MORE “It works on my machine”

17. Environment Parity
17
cmtcmtcmt v201cmt cmt cmt cmt v202 cmt
… …
Prod
Acceptance
CI

18. Essential Elements to Enabling Devops
18
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT
• Self-service, Rapid Provisioning/
Deprovisioning
AGILITY
• Environment parity
NO MORE “It works on my machine”
• Immutable Infrastructure
NO SNOWFLAKES!!!
• Blue/Green Deployments
ENABLE PULLBACK

19. Immutable Infrastructure - Deploy From Scratch
19
Router
Blobstore Cloud Controller
Messaging
Cell Cell Cell Pivotal
Cloud Foundry
Runtime (ERS)
Access
App

20. Low Risk, Blue/Green Deploys
20

21. Essential Elements to Enabling Devops
21
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT
• Self-service, Rapid Provisioning/
Deprovisioning
AGILITY
• Environment parity
NO MORE “It works on my machine”
• Immutable Infrastructure
NO SNOWFLAKES!!!
• Blue/Green Deployments
ENABLE PULLBACK
• Self-healing, elastic runtime
EXPECT CHANGE

22. Self-Healing
22
Amend
(Re)deploy
(Re)configure
(Re)connect
Monitor
Current
State Desired
State
Cloud Foundry manages
transformations between existing and
desired system states, using
immutable infrastructure.

23. Application Instances and Availability Zones
23
Router
Cell
Cell
Cell
Cloud Foundry
Elastic Runtime
Cell
Cell
Cell
Zone 1 Zone 2 Application instances
are evenly distributed
over two availability
zones.
Loosing an AZ keeps
instances running and
available.

24. Failed Application Instances Replaced
24
Router
Blobstore Cloud Controller
etcd
Cell Cell Cell
Cloud Foundry
Elastic Runtime
Access
App
DB
Service
credentialscreds
Converger & Auctioneer
Desired State
credscreds
Actual State

25. Essential Elements to Enabling Devops
25
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT
• Self-service, Rapid Provisioning/
Deprovisioning
AGILITY
• Environment parity
NO MORE “It works on my machine”
• Immutable Infrastructure
NO SNOWFLAKES!!!
• Blue/Green Deployments
ENABLE PULLBACK
• Self-healing, elastic runtime
EXPECT CHANGE
• Self-healing, evolving platform
AS A PRODUCT

26. Application Teams Focus on Their Products…
26
cmtcmtcmt v201cmt cmt cmt cmt v202 cmt
… …
Prod
Acceptance
CI

27. … And Platform Teams on Theirs
7
cmt v201cmt cmt cmt cmt v202 cmt
… …
Prod
Acceptance
CI

28. … And Platform Teams on Theirs
8
cmt v201cmt cmt cmt cmt v202 cmt
… …
App
Platform
CVE
Prod
Acceptance

29. PCF – Each Layer Upgradable with Zero Downtime
9
* Devs may bring a custom buildpack
runtime layer*
OS image
application layer
linux host & kernel
App container
PCF Supported
Dev Supported
• Platform Provided
• CVEs addressed by Pivotal
• Canary-style, zero-
downtime upgrades
• Platform or Developer
Provided
• CVEs addressed by Pivotal
(for Platform Provided)
• Blue/Green deployments
• Developer/App team
provided
• Blue/Green deployments

30. Essential Elements to Enabling Devops
30
• Complete test suites
RUN in DEV, TEST and PROD
• Deployment construction
SINGLE DEPLOYABLE ARTIFACT
• Self-service, Rapid Provisioning/
Deprovisioning
AGILITY
• Environment parity
NO MORE “It works on my machine”
• Immutable Infrastructure
NO SNOWFLAKES!!!
• Blue/Green Deployments
ENABLE PULLBACK
• Self-healing, elastic runtime
EXPECT CHANGE
• Self-healing, evolving platform
AS A PRODUCT

31. 31
Cloud-native Application
Design
Scale and Resilience

32. © 2015 Pivotal Software, Inc. All rights reserved. 32
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33. Why?
• Scale Applications
• Scale Teams
• Independent Development Cycles
• Experimentation
• Resilience

34. 34
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35. Example: Microservice Architecture
35
UI
JS (Angular)
Customers
Stores
• How do you configure the many
services?
• How do you support multiple
versions?
• How does a consumer (UI,
Customers) find the service
instances (that are moving
around)?
• How do you deal with the failure
modes introduced with
distributed systems?

36. 36 http://highscalability.com/blog/2014/4/8/microservices-not-a-free-lunch.html

37. Example: Microservice Services
37

38. Spring Cloud Services
38
Spring Cloud Services
Config Server Service Registry Circuit Breaker
Dashboard

39. 39

40. Cloud Foundry is…
The world’s leading open source platform-as-a-service.
• Supported by dozens of major organizations
• Language and framework agnostic
• Manages both VMs and containers
• Orchestrates both applications and data services
• Abstracts Infrastructure
Founded and commercialized by Pivotal, Inc.

41. The Cloud Foundry Foundation: An Open Industry Standard
41
PLATINUM
GOLD
SILVER

42. Thank you!
Cornelia Davis
CTO, Transformation Practice
Pivotal
@cdavisafc