IBM Bluemix OpenWhisk: Cloud Foundry Summit 2016, Frankfurt, Germany: The Future of Cloud Programming

Serverless and Event-driven Applications with Cloud
Foundry and OpenWhisk
Andrei Yurkevich (@yurkvch)
Chief Technology Officer
Andreas Nauerz (@AndreasNauerz)
Technical Product Manager

@altoros@yurkvch
WHAT WE DO
Altoros brings “software assembly lines” into organizations
through integration of solutions offered by the Cloud Foundry ecosystem.
TRAINING:
FOR OPERATORS
FOR DEVELOPERS
DEVELOPER
ADOPTION
CONSULTING
PROOF OF CONCEPT
& IMPLEMENTATION
APP DEVELOPMENT
& MICROSERVICES
2
POPULARPOPULAR
Delivered by partners:
Delivered by Altoros:

@altoros@yurkvch
WHO WE ARE
Altoros offices Delivery partner in APAC
3
Minsk, BY
Oslo, NO
Sunnyvale, CA
(HQ)
Chicopee, MA
London, UK
Espoo, FI
Buenos Aires, AR
Santa Fe, AR
Tokyo, JP
Silkeborg, DK
Zurich, CH
Taby, SE

4
We will tell you about…
● Why we need event-driven infrastructure

5
● Requirements for event-driven infrastructure

6
● Introducing OpenWhisk

7
● OpenWhisk and CloudFoundry

8
● OpenWhisk and CloudFoundry
● Demo

9
Welcome to Industrial internet!

11
How would you implement it?

12
OK, let’s move step by step

13
And if you want it to be HA?

26
But if we don’t scale fast...
How much
does it cost?

30
So what are the requirements?
● Invoke and scale as fast as possible
● Terminate after completion

31
● Charge per compute used

32
● Guaranteed message delivery
● Load balancing

33
● Load balancing
● High availability
● Self-healing

34
● Load balancing
● Self-healing
● Support of multiple
technologies
● Have possibility to launch other
microservices
● Write and read data from
multiple data sources

35
● Load balancing
● Self-healing
● Support of multiple
technologies
● Have possibility to launch other
microservices
● Write and read data from
multiple data sources
● Abstract developers from the
infrastructure

Yorktown, NY
OpenWhisk in a nutshell
Raleigh, NCAustin, TX
Boeblingen, Germany
Serverless computing in general and OpenWhisk in particular is regarded an important effort 31

37
„Event-action platform to execute code in response to events“
* whisk (v): to move nimbly and quickly (source: merriam-webster.com)

38
„Event-action platform to execute code in response to events“
Delivered as open source & managed service on IBM Bluemix
* whisk (v): to move nimbly and quickly (source: merriam-webster.com)

39
Serverless deployment & operations model

40
Optimal utilization & granular pricing

41
Scales on a per-request basis

42
Flexible programming model
Supports higher-level programming constructs (e.g. sequencing)
Polyglot support

43
Open (Apache 2) & open ecosystem
Open interface for event providers
Polyglot support
Leverages Docker, Kafka, Consul, …

44
Open (Apache 2) & open ecosystem
Open interface for event providers
Polyglot support
Implemented in Scala
Leverages Docker, Kafka, Consul, …

Swift
Application
Container VMCF
2
Polling
1b
Request
1a
Traditional model
• Continous polling due to missing event
programming model
• Charges even when idling due to poor utilization
Process & idle

Swift
Application
Container VMCF
2
Polling
1b
Request
1a
Traditional model
programming model
• Worry about scaling
- When to scale? (mem-, cpu-, response time-driven)
- How fast to scale?
Process & idle

Swift
Application
Container VMCF
2
Polling
1b
Request
1a
Traditional model
programming model
• Worry about scaling
- When to scale? (mem-, cpu-, response time-driven)
- How fast to scale?
• Worry about resiliency
- At least 2 processes for HA (driving cost)
- Deployment in multiple regions (driving cost)
- Keep them running & healthy
Process & idle

OpenWhisk
• Introduces event programming model
• Charges only for what is used due to optimal
utilization Pool of actions
Swift DockerJS
Trigger
1
Running
action
Running
action
Running
action
3
Deploy action within millisecs,
run it,
free up resources
OpenWhisk
Engine
2

OpenWhisk
utilization
• Scales inherently
- One process per request
Pool of actions
Swift DockerJS
Trigger
1
Running
action
Running
action
Running
action
3
run it,
free up resources
OpenWhisk
Engine
2

OpenWhisk
utilization
• Scales inherently
- One process per request
• No cost overhead for resiliency
- No long running process for HA
Pool of actions
Swift DockerJS
Trigger
1
Running
action
Running
action
Running
action
3
run it,
free up resources
OpenWhisk
Engine
2

}
1
Event Providers
OpenWhisk
Cloudant
Push Notifcations
…
…
…
Data event occurs, e.g.
-Commit on a Git Repository
-CRUD operation on Cloudant
-….
Trigger execution
of associated
OpenWhisk action
2
…
JS Swift Docker …

OpenWhisk
JS Swift Docker …
Incoming HTTP request, e.g.
HTTP GET mynewcoolapp.com/customers
1 2 Invoke associated
OpenWhisk action
„getCustomers“
Browser
Mobile App
Web App
Variety of
languages

• Services define the events they emit as triggers, and developers associate
the actions to handle the events via rules
• The developer only needs to care about implementing the desired application
logic - the system handles the rest
T R A

Trigger: „A class of events that can happen“T

A Actions: „An event-handler, i.e. code that runs in response to an event“

A
AA
:= A1
+ A2
+ A3
AB
:= A2
+ A1
+ A3
AC
:= A3
+ A1
+ A2
Actions: Can be chained to create sequences to increase flexibility and foster
reuse

R
R := T A
Rules: „An association of a trigger and an action“

myAction
myFeedT
A
Packages: „A shared collection of triggers and actions“P
A forecast
Open
Source
Yours
Third
Party
translate
languageId
textToSpeec
h
A
A
A
databaseCreate
documentRead
...
changesT
A
A
A
Push
Notifications
sendMessage
webhookT
A
webhookT
postA
Websocket
sendA

You want to try OpenWhisk on your own?

• Want to try out our IBM Bluemix OpenWhisk offering?
Sign-up today at: https://new-console.ng.bluemix.net/openwhisk/

• Want to try out our IBM Bluemix OpenWhisk offering?
Sign-up today at: https://new-console.ng.bluemix.net/openwhisk/
• Want to try out our open-source OpenWhisk offering?
Visit: https://developer.ibm.com/openwhisk/

62
Demo time!
http://bit.ly/1Uw6OP3

64
How did it work?
https://developer.ibm.com/openwhisk/2016/04/01/ibm-bluemix-openwhisk-whats-under-the-hood/

@yurkvch @altoros 6
Cloud Foundry and OpenWhisk

67
I can’t use OpenWhisk on Bluemix because
Vendor lock-in

68
Vendor lock-in
All my data is (in local datacenter)

69
Vendor lock-in
We implement a hybrid strategy

70
Vendor lock-in
We don’t use Bluemix at...

71
Vendor lock-in
I need to have the compute device on the network edge

72
Vendor lock-in
All my data is (in a local data center)
I need to have the compute device on the network edge
Security!

73
https://github.com/openwhisk

altoros.com
blog.altoros.com
developer.ibm.com/openwhisk
74
@yurkvch
@altoros
Questions? @AndreasNauerz
@OpenWhisk

altoros.com
blog.altoros.com
developer.ibm.com/openwhisk
75
@yurkvch
@altoros
Thank you! @AndreasNauerz
@OpenWhisk

IBM Bluemix OpenWhisk: Cloud Foundry Summit 2016, Frankfurt, Germany: The Future of Cloud Programming

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IBM Bluemix OpenWhisk: Cloud Foundry Summit 2016, Frankfurt, Germany: The Future of Cloud Programming