Building and running serverless workloads the Knative way #ServerlessLondon

Knative is a K8s based platform to build, deploy, manage and run serverless workloads.
In this session we will take a look at the concepts of each Knative building block and apply them directly in practice. First, we’ll define and use Tecton pipelines to build our workloads. Then we’ll use Knative serving to rapidly deploy serverless containers with automatic scaling up and down to zero. Finally, we’ll show how to build loosely coupled event-driven architectures with the help of Knative eventing. This session will also cover the different installation options leveraging either Istio or the API gateways Gloo and Ambassador. #CloudNativeNerd #ServerlessLondon

Transcript

1. BUILDING AND RUNNING SERVERLESS WORKLOADS 
 THE KNATIVE WAY
2. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware 2 Mario-Leander Reimer Principal Software Architect QAware GmbH
3. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Cloud Native Application Development is complex. YAML, Docker, Kubernetes, … 3
4. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Serverless is the next logical evolution in Cloud Native Software Development 4
6. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware –https://landscape.cncf.io/ „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.“ 6
7. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware 7
8. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware 8
9. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Conceptual Building Block of Knative 9 Kubernetes Istio Knative Serving Knative Eventing Knative Build
10. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Conceptual Building Block of Knative 10 Kubernetes Istio Knative Serving Knative Eventing Tekton Pipelines
11. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Conceptual Building Block of Knative 11 Kubernetes Ambassador or Gloo API Gateway Knative Serving Knative Eventing Tekton Pipelines
12. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Hybrid Architecture Use Cases • Integration into Enterprise PaaS environments • Build container images in runtime platform • Combination of Microservice Architecture with EDA • Usage of Function Services for Event- driven use cases • Reduced resource consumption via Scale- to-Zero functionality 12 Enterprise PaaS Microservices Serverless Workloads FaaS Platform X Y Z F1 F2 Fn DevOps S1 S2 Sn L M T
13. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Tekton Pipeline Concepts 13 PipelineResource Task TaskRun references input output Pipeline PipelineRun 1..* references references
14. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Knative Serving Concepts • Route is a named endpoint and a mechanism for routing traffic to • Revisions, which are immutable snapshots of code + config, created by a configuration • Configuration acts as a stream of environments for Revisions • Service acts as top-level container for managing a Route and Configuration which implement a network service 14
15. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Knative Eventing Concepts • Direct Delivery from source to Service • Fan-out delivery from a source or Service response to multiple endpoints using Channels and Subscriptions. 15 • Event Delivery as CloudEvent over HTTP Post • Sources: k8s, Github, Cron, Kafka, Camel, SQS, PubSub • Channels: InMemory, NATS, Kafka, PubSub
16. | Serverless Computing London | Building and running Serverless workloads the Knative way | @LeanderReimer #cloudnativenerd #qaware Fork me 16 https://github.com/lreimer/hands-on-knative
17. & Mario-Leander Reimer Principal Software Architect, QAware GmbH mario-leander.reimer@qaware.de https://www.qaware.de https://speakerdeck.com/lreimer/