© 2017 IBM Corporation l Interconnect 2017
IBM Bluemix

OpenWhisk
Serverless architectures built
on an open source platform
@DanielKrook
Daniel Krook

Software Architect, IBM
IBM Bluemix OpenWhisk@DanielKrook
Increasingfocusonbusinesslogic
Decreasing concern (and control) over stack implementation
Bare Metal
VM VM
VM
Virtual machines
Functions
Containers
Serverless developers focus more on code, less on infrastructure
IBM Bluemix OpenWhisk@DanielKrook
Monolithic
Application
Break-down into
microservices
Make each
microservice HA
Protect against
regional outage
Region A
Region B
Microservices can be hard to manage at scale
IBM Bluemix OpenWhisk@DanielKrook
Emerging workloads are a good fit for event-driven programming
Execute logic in response to database change
Perform analytics on sensor input messages
Provide cognitive computing via chatbots
Schedule tasks performed for a short time
Invoke autoscaled APIs and mobile backends
IBM Bluemix OpenWhisk@DanielKrook
Memory
allocated
(MB)
Time executing
(milliseconds)
Instances
executing
simultaneously
(count)
Cloud resource cost
better matches
business value gained
Not a silver bullet, but this can result in
substantial savings for many workloads
New cost models more accurately charge for usage
IBM Bluemix OpenWhisk@DanielKrook
OpenWhisk is a
cloud platform that
executes code in
response to events
OpenWhisk enables these serverless, event-driven workloads
Provides serverless deployment and operations model
Runs code only on-demand on a per-request basis
Optimized utilization, fine-grained metering at any scale
Flexible, extensible, polyglot programming model
Open source and open ecosystem (Apache Incubator)
Ability to run in public, private, and hybrid models
IBM Bluemix OpenWhisk@DanielKrook
Results
Developers work with packages, triggers, actions, and rules
Package
(feed)
Packages provide integration
with external event sources
P
Trigger
(event)
T
Data sources define events
they emit as Triggers
Rule (map)R
Action
(function)
A
Developers map Actions
to Triggers via Rules
IBM Bluemix OpenWhisk@DanielKrook
Apache
Incubator
OpenWhisk is built on solid open source foundations
IBM Bluemix OpenWhisk@DanielKrook
Bluemix offers management, tooling, and monitoring
IBM Bluemix OpenWhisk@DanielKrook
Bluemix offers management, tooling, and monitoring
IBM Bluemix OpenWhisk@DanielKrook
Bluemix offers management, tooling, and monitoring
IBM Bluemix OpenWhisk@DanielKrook
Managed service on

IBM Bluemix
bluemix.net/openwhisk
Delivered as

Open source via Apache
openwhisk.org
Get started on Bluemix, or explore the open source project
github.com/openwhisk
slack.openwhisk.org
twitter.com/openwhisk
medium.com/openwhisk

Serverless architectures built on an open source platform