Function as a Service with Knative and riff
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The document provides an overview of Project Riff, an open-source serverless Function as a Service (FaaS) platform based on Kubernetes (K8s). Some key points: - It uses Knative for building, serving, and eventing functions, including autoscaling functions from zero. - Functions are deployed via a CNAB bundle that installs Knative, Istio, and Riff controllers. - Functions are defined as custom resources that trigger building via Knative buildpacks and make functions invokable. - Streaming functions are supported via Spring Cloud Function though currently only Java is supported with broader support coming soon. The presentation includes demos of building, deploy
![Knative build
Brings a custom Build resource
The whole sequence of steps is run on the cluster,
in Builder images configured in a
(Cluster)BuildTemplate
Performs tasks such as:
■ Fetching code from repositories
■ Compiling
■ Publishing images
Current build template is based on
Buildpacks v3
apiVersion: build.knative.dev/v1alpha1
kind: BuildTemplate
metadata:
name: bazel
spec:
parameters:
- name: TARGET
description: The name of the Bazel "container_push"
target to run
steps:
- name: build-and-push
image: gcr.io/cloud-builders/bazel
args: ['run', '${TARGET}']](https://image.slidesharecdn.com/sp8-faasknativeriff-190705172023/85/Function-as-a-Service-with-Knative-and-riff-16-320.jpg)
Function as a Service with Knative and riff
- 1. © Copyright 2019 Pivotal Software, Inc. All rights Reserved. Florent Biville 4th of July = Saint Florent ! Function as a Service with Knative and
- 2. Agenda ■ Introduction to 🗻 ■ … and beneath ⚙ ■ Demos 🙏 ■ Q+A ❓
- 3. `who am i`
- 4. Florent Biville ( @fbiville) ■ riffer at by day ■ ambassador and trainer by night ■ Spring Paris, Hackergarten Paris co-org ■ co-founder and co-org ■ Bu cümleyi anlarsan, sunumumdan sonra konuşalım! `who am i`
- 6. Word of caution ⚠ What you will 👀 about is not released yet and is subject to change
- 7. What is love ? is the open-source serverless Function As A Service platform ■ based on Kubernetes (shorthand: K8s) ■ easy to install (CNAB FTW) ■ easy to scale (via Knative serving built-in autoscaling, inc. scale-{to,from}-zero) ■ with polyglot function support (build sources via Knative build and buildpacks v3) ■ with emergent stateful streaming support ■ and an overall improved User eXperience in mind
- 8. Thanks for attending, bye! Source: https://www.ina.fr/video/I08358793/valery-giscard-d-estaing-au-revoir-video.html
- 9. Wow, let’s back up a bit!
- 10. Kubernetes has become the de-facto IaaS* *IaaS = Infrastructure as a Service
- 11. Kubernetes has become the de-facto IaaS ■ Open-source, CNCF project ■ Rich and growing ecosystem ■ Sane and simple conceptual core model ■ Generic and extensible via CRD
- 12. Stop! Demo time!
- 13. K8s is awesome, but! ■ Common deployment patterns complex to implement (want to 👀 some more YAML? 🤕) ■ Perfect to build a platform on top of it … ■ … which is probably NOT the core mission of your company 😉 Have you heard about
- 14. Knative to the rescue ■ 3 main components ○ Build 🛠 ○ Serving 🥂 ○ Eventing ⛓
- 15. Knative to the rescue ■ 3 main components ○ Build 🛠 ○ Serving 🥂 ○ Eventing ⛓
- 16. Knative build Brings a custom Build resource The whole sequence of steps is run on the cluster, in Builder images configured in a (Cluster)BuildTemplate Performs tasks such as: ■ Fetching code from repositories ■ Compiling ■ Publishing images Current build template is based on Buildpacks v3 apiVersion: build.knative.dev/v1alpha1 kind: BuildTemplate metadata: name: bazel spec: parameters: - name: TARGET description: The name of the Bazel "container_push" target to run steps: - name: build-and-push image: gcr.io/cloud-builders/bazel args: ['run', '${TARGET}']
- 17. Buildpacks v3 ■ Initially developed by Heroku & Pivotal ■ Build auto-detection (npm, Maven, Gradle…) ■ Eases the production upgrade process ■ defines its own builder and buildpacks to detect, build and publish functions with their corresponding invoker
- 18. Knative to the rescue ■ 3 main components ○ Build 🛠 ○ Serving 🥂 ○ Eventing ⛓
- 19. Knative serving ■ Autoscaling (down-to/up-from 0) ■ Routing with Istio (service mesh) ■ Versioned code & configuration (revision)
- 20. Back to 😅
- 21. What is love ? is the open-source serverless Function As A Service platform ■ based on Kubernetes (shorthand: K8s) ✓ ■ easy to install (CNAB FTW) ■ easy to scale (via Knative serving built-in autoscaling, inc. scale-{to,from}-zero) ✓ ■ with polyglot function support (build sources via Knative build and buildpacks v3) ✓ ■ with emergent stateful streaming support ■ and an overall improved User eXperience in mind
- 22. Installation via riff CNAB CNAB? Cloud Native Application Bundle ■ Standard for packaging multi-component applications ■ Target environment-agnostic ■ Invocation image can use Helm, KAB etc ■ Bundle can be thin or thick cnab.io
- 23. Installation via riff CNAB The bundle includes ■ Knative serving and build ■ Istio (Envoy) service mesh ■ riff custom resources and controllers It does not include ■ A K8s cluster
- 24. Stop! Demo time!
- 25. Stop! Demo time!
- 26. What is love ? is the open-source serverless Function As A Service platform ■ based on Kubernetes (shorthand: K8s) ✓ ■ easy to install (CNAB FTW) ✓ ■ easy to scale (via Knative serving built-in autoscaling, inc. scale-{to,from}-zero) ✓ ■ with polyglot function support (build sources via Knative build and buildpacks v3) ✓ ■ with emergent stateful streaming support ■ and an overall improved User eXperience in mind
- 27. Function deployment Function? ■ A custom resource to describe the (Repo URL)→Docker image transformation on the cluster a.k.a. build ■ Orchestrated by the buildpack builder ■ Invokable in: ○ Request-reply mode (handler) ○ Streaming fashion (processor) const os = require('os'); const hostname = os.hostname(); module.exports = name => { console.log(`received request to ${hostname} for ${name}`); return `hello ${name} from ${hostname}` };
- 28. Stop! Demo time!
- 29. Streaming function (pre-α) Streaming ■ Heavy lifting done by Spring Cloud Fn ■ Streaming processor and gateway (Liiklus) abstract the underlying msg system ■ ⚠ Only Java supported at this point (broader support soon) Fn Invoker Processor Gateway 1 Gateway 2 Kafka topic1 Kinesis topic2
- 30. What is love ? is the open-source serverless Function As A Service platform ■ based on Kubernetes (shorthand: K8s) ✓ ■ easy to install (CNAB FTW) ✓ ■ easy to scale (via Knative serving built-in autoscaling, inc. scale-{to,from}-zero) ✓ ■ with polyglot function support (build sources via Knative build and buildpacks v3) ✓ ■ with emergent stateful streaming support ✓ ■ and an overall improved User eXperience in mind ✓
- 31. Useful resources
- 32. Useful resources riff resources Documentation: https://projectriff.io CNAB bundle: https://github.com/projectriff/cnab-riff System: https://github.com/projectriff/system Buildpack builder: https://github.com/projectriff/builder/ CLI: https://github.com/projectriff/cli/ PFS: https://pivotal.io/platform/pivotal-function-service Twitter: https://twitter.com/projectriff General resources CNAB: https://cnab.io/ Cloud Native Buildpacks v3: https://buildpacks.io/ Kubernetes: https://kubernetes.io Knative: https://cloud.google.com/knative/ Presentation resources Demo repo: https://github.com/fbiville/riff-demos
- 33. Q&A
- 34. Thank you 🙏 Any questions?