Building a multi-cloud automation with Dispatch.

1. WHAT IS SERVERLESS
USEFUL FOR?
BUILDING A MULTI-CLOUD
AUTOMATION WITH DISPATCH
Karol Stepniewski & Berndt Jung
Cloud Native Apps @VMware

2. Agenda
2
Serverless, FaaS, Functions, and Use cases
What is Dispatch?
Demo
Wrapping up & next steps
Q & A

3. 3
How Did We Get Here?
Increasingfocusonbusinesslogic
Decreasing concern (and control) over infrastructure implementation
Virtual machines
Functions
Containers
Bare Metal
Justwritecodethatmatters

4. 4
What is a Function?
Auto-scaled Lower Cost
Event Driven Stateless Finite Lifespan

5. 5
Use Cases
• RESTful services
• Stateless apps
• Bursting workloads
• Parallel processing
• Edge computing
• Mobile app
backends
• Log analysis
• Job queues
• ETL
• Machine Learning
• CI/CD pipelines
• Notifications
• Chat Ops
• Periodic jobs
• Monitoring and
alerting
• Provisioning
• Automation
ƒ(x)
Micro-services IoT Stream-processing DevOps IT Operations

6. 6
Events in the Public Cloud
Or Serverless the easy way
Eco-system of Services
Connected via a common event bus
Events and triggers integrated into platform
But what if you’re not just in one cloud?
What about on-premise event producers and
consumers?

7. 7
Serverless is...
• Functions
• PaaS/CaaS
• Managed Services
– Databases
– Queues
– Object Store
• API Gateways
• Etc.
But does everything have to be within a single cloud?
Serverless is More Than Just Functions

8. 8
CloudEvents
- Cloud Events is now a
CNCF sandbox project
- Released 0.1 specification
- Showed multi-vendor
interoperability demo at
kubecon in Copenhagen
Tech community

9. 9
Dispatch
Batteries-included production functions

10. 10
What is Dispatch?
Enterprise Functions Stack
Cloud events native
Integrate almost any IDP
Production-ready
API-gateway

11. 11
Under Construction
Dispatch 0.1.x
• Loosely Kubernetes Based
• Support multiple FaaS
backends
Dispatch Solo
• Single Binary
• Single Dependency (Docker)
Dispatch Knative
• Based on Knative building
blocks
• Tightly coupled to Kubernetes

12. 12
Open sourced by Google with partners (Pivotal, IBM,
RedHat, etc)
Serverless building blocks for Kubernetes
• Build
– Pluggable framework for building container images on
Kubernetes from source
• Serving
– Auto-scaling containers from 0 (not just functions)
– Istio based routing with support for traffic splitting and
canary deployments
• Eventing
– Manage event sources and subscriptions
– Pluggable bus (Kafka, GCP pub/sub)
– CloudEvents based
What is Knative?

13. 13
Dispatch Architecture
Customers
Administrators
Developers
External
Events
Inbound data
Dispatch component
Knative component
Image
Registry
(Harbor)
IDP/AD
Kubernetes (PKS)
Knative Eventing
API Gateway (Istio)IAM
Knative Serving Service Catalog
External OSB
Services
Dispatch API
Dispatch Operators
Knative Building
Dispatch dependency

14. 14
Demo
Chat-ops with Dispatch and Slack
1
API-Gateway: POST /cloudmaster
Execute: cloudmaster.py
Create/List/Delete VM
Event-Driver: Listen for events
Execute: status.py
2 3
5 4

15. 15
What's Next for Dispatch?

16. 16
Low barrier to entry
• Shipped as single binary or VM appliance
• Only dependency is Docker
API compatible with Dispatch Knative*
• Shared UI/CLI
• Same functions and images
Lightweight
Explore Dispatch and Functions use-cases
• It ran the demo!
Dispatch Solo

17. 17
Long-term bet on Knative
• VMware contributing directly to upstream Knative project
• Knative is still evolving significantly
Currently supported features
• Image management
• Function creation and execution
• API gateway*
Dispatch Knative

18. 18
Want to get involved?
• vmwarecode.slack.com #dispatch
Tell us your use-cases
Become a committer
• https://github.com/vmware/dispatch
Wrapping Up

19. 19
http://dispatchframework.io
https://knative.dev
Links

20. 20
Questions?