Java User Group Hessen Meetup, März 2020, Vortrag von Mario-Leander Reimer (@LeanderReimer, Technischer Geschäftsbereichsleiter bei QAware). == Dokument bitte herunterladen, falls unscharf! Please download slides if blurred! == Vor nicht allzu langer Zeit war das Aufkommen von Mikroservice-Architekturen eine große Störung im Software-Engineering: Systeme wurden nun als autonome Dienste gebaut, komponiert und betrieben. Aber das ging nur zum Preis zusätzlichen Komplexität. Serverless und FaaS scheinen die nächste Störung zu sein. Sie sind eine logische Weiterentwicklung, die der inhärenten technologischen Komplexität Rechnung trägt, mit der wir bei der Entwicklung nativer Cloud-Anwendungen konfrontiert sind. FaaS-Frameworks und Plattformen schießen derzeit wie Pilze aus dem Boden: Knative, OpenFaaS, Fission oder Nuclio sind nur einige Beispiele. Aber welches davon ist geeignet für dein nächstes Projekt? Und ist es eine Alles-oder-Nichts-Entscheidung oder auch für hybride Architekturen brauchbar? Lasst es uns herausfinden! Ziel des Vortrags: - ein gutes Verständnis der Serverless-Architektur und des FaaS-Programmiermodells - ein Kriterienkatalog mit wesentlichen Merkmalen zur Auswahl einer geeigneten FaaS-Plattform - ein Überblick über das Ökosystem der nativen FaaS-Plattform der Cloud - mehrere Arbeitsvitrinen, die Sie mit nach Hause nehmen und mit sich selbst experimentieren können Erforderliche Publikumserfahrung: Grundlegende Programmierkenntnisse und Erfahrungen mit Microservices und nativer Cloud-Technologie sind von Vorteil.

1. THE BIG
CLOUD NATIVE
FAAS LEBOW$KI// JUG Hessen // The Big Cloud Native FaaS Lebowski -> { created with ❤ and
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by @LeanderReimer #CloudNativeNerd @qaware }

2. Mario-Leander Reimer
Chief Software Architect
#CloudNativeNerd
QAware GmbH
http://github.com/lreimer
http://speakerdeck.com/lreimer
@LeanderReimer

3. DISCLAIMER
This presentation is meant to provide an overview of the
current cloud native faas platform ecosystem.
It is not my intention to discredit the great work of the
people and developers behind these platforms.
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4. CLOUD NATIVE SOFTWARE DEVELOPMENT IS
COMPLICATED.DOCKER, YAML, MICROSERVICES, KUBERNETES, ET.AL.
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5. TWO POSSIBLE WAYS
TO IMPROVE YOUR
CLOUD NATIVE DEVEX
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6. USE THE RIGHT TOOLS
FOR THE JOB!DRAFT, BUILDPACKS, HELM, KUSTOMIZE, SKAFFOLD, TILT
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7. SERVERLESS IS THE NEXT
LOGICAL EVOLUTIONIN CLOUD NATIVE SOFTWARE DEVELOPMENT.
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8. NO SERVER IS EASIER TO MANAGE THAN NO SERVER. 3
3
Werner Vogels, CTO, Amazon
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9. Serverless computing refers to a new model of cloud native
computing,
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10. Serverless computing refers to a new model of cloud native
computing, enabled by architectures that do not require
server management to build and run applications.
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11. Serverless computing refers to a new model of cloud native
computing, enabled by architectures that do not require
server management to build and run applications. It leverages
a finer-grained deployment model where applications,
11 — // JUG Hessen // The Big Cloud Native FaaS Lebowski -> { created with ❤ and
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12. Serverless computing refers to a new model of cloud native
computing, enabled by architectures that do not require
server management to build and run applications. It leverages
a finer-grained deployment model where applications, bundled
as one or more functions, are uploaded to a platform
12 — // JUG Hessen // The Big Cloud Native FaaS Lebowski -> { created with ❤ and
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by @LeanderReimer #CloudNativeNerd @qaware }

13. Serverless computing refers to a new model of cloud native
computing, enabled by architectures that do not require
server management to build and run applications. It leverages
a finer-grained deployment model where applications, bundled
as one or more functions, are uploaded to a platform and
then executed, scaled, and billed in response to the exact
demand needed at the moment. 1
1
https://landscape.cncf.io/
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15. FUNCTIONSAS PREFERRED SERVERLESS APPLICATION
PROGRAMMING MODEL.

16. EVENT-DRIVEN ARCHITECTURE
ENABLES LOOSELY COUPLED REACTIVE
SOFTWARE COMPONENTS AND SERVICES. 2
2
https://cloudevents.io
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18. MY USE CASE 1
HYBRID ARCHITECTURES
> Combine Microservice Architecture
with EDA
> Leverage Function services for
Event-driven use cases
> Reduce resource consumption and
costs via Scale 2 Zero
> Integrate into existing Enterprise
PaaS environment

19. MY USE CASE 2
EDGE AND FOG COMPUTING
> Couch project: evaluate usage of
FaaS for low power devices
> Support for lightweight schedulers
like Docker Swarm
> Support for compiled language
runtimes like Go, et.al.

20. MY CRITERIA TO CHOOSE THE IDEAL FAAS PLATFORM
> Open Source - no initial $$$ and no vendor lock-in please
> Maturity - good and active community, little issues, frequent releases
> Use Cases - general purpose, enterprise, big data, AI, edge computing
> Approachable - quick start and sufficient documentation
> Language Runtimes - please more than JavaScript!
> Developer Friendly - tools & frameworks, local runtime, testing, IDE support
> Operability - easy setup, supported platforms, technology footprint
> Integration - supported triggers, infrastructure, plugins, standards
> Performance - good cold startup performance and throughput
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25. MY MAIN CONTENDERS
> fission
https://fission.io
> Knative
http://knative.dev
> Kubeless
https://kubeless.io
> nuclio
https://nuclio.io
> OpenFaaS
https://www.openfaas.com
> Kyma
http://kyma-project.io

26. License Use Cases Platforms Runtimes Triggers
fission Apache-2.0 Enterprise k8s Go, Python, NodeJS, Java/
JVM
cron, http, NATS, Azure
Queue Storage, Kafka,
Kubewatch
Kubeless Apache-2.0 Enterprise K8s NodeJS, Java, Go, JVM,
Python, PHP, Ruby, .NET
Core, Ballerina, Vert.x
cron, http, NATS, kinesis,
Kafka
OpenFaaS
OpenFaaS Cloud
MIT Enterprise, IoT K8s, Docker Go, C#, Java8, Java12,
Dockerfile, Node.JS 8.x,
Node.JS 12.x, PHP7, Ruby,
Python 3
http, cron, Kafka, AWS
SNS, S3, CloudEvents, IFTTT,
Redis, MQTT, NATS
nuclio Apache-2.0 Enterprise, AI Docker, K8s, AWS, GCP .NET Core, Go, Java, NodeJS,
Python, Shell
cron, eventhub, http,
kafka, kinesis, nats,
rabbitmq, mqtt
Knative Apache-2.0 Enterprise K8s Language agnostic Cronjob, API Server,
Github, GCP Pub/Sub,
Kafka, AWS SQS, HTTP
Kyma Apache-2.0 Enterprise K8s Java, Go, NodeJS, Python,
Ruby
http, NATS, Knative
Eventing
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27. CLOUD NATIVE FAAS DEMOS

28. WELL DUDE, WHICH ONE SHOULD I CHOOSE?

29. IT DEPENDS ON YOUR USE CASE.
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30. FORK ME
HTTPS://GITHUB.COM/LREIMER/THE-BIG-FAAS-LEBOWSKI
HTTPS://GITHUB.COM/LREIMER/RASPI-SWARM-BOX
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31. THANK YOU!
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