Managing serverless workloads with knative

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GDG Cloud Bengaluru

Session on managing serverless workloads with Knative by Savita Ashture as part of GDG Cloud, Bangalore meetup

Technology

savitaashture savita-ashture
Savita Ashture
@
savitaashture
It's all about me :)

Agenda
➢ Serverless Again :)
○ Overview
➢ Knative
○ Overview, Modules, Products
➢ Serving
○ Terminology, Workflow
➢ Demo
○ Migrating existing K8S Deployment to Knative Service

Serverless?
-- CNCF Deﬁnition,
https://www.cncf.io/blog/2018/02/14/cncf-takes-ﬁrst-step-towards-serverless-co
mputing/
Events
Action
Result

1. No worries about infrastructure
2. Auto scaling
3. Pay as you go
Principles

Knative
Kubernetes-based platform to deploy and manage modern serverless
workloads.
1. Open Source project
2. Acts as a layer between Kubernetes and Serverless
3. Can run anywhere: on premises, cloud and third-party data center
https://knative.dev/blog/2020/02/03/2019-annual-report/

Knative Modules
Build Serving Eventing
Knative
Kubernetes
Platform
Primitives

Knative Modules
Build Serving Eventing
Knative
Kubernetes
Platform
Primitives
Tekton

Knative Modules
Knative
Kubernetes
Platform
Primitives
Serving Eventing

Products
Platform
Primitives
Products
Kubernetes
Serving Eventing
Google
cloud run
SAP Kyma
Red Hat Openshift
Pivotal Function Service
Trigger MeshIBM Cloud Kubernetes service

Terminology
Object Short Form
● Service ksvc
● Configuration cfg
● Route rt
Knative
Kind:
Service
Knative
Service
k8s Service
● Revision rev
User can Creates
Serving Creates

Workflow
Service
Configuration
Manag
es
Route

Workflow
Service
Configuration
Manag
es
Route
Revision
Revision
Record and
manage history

Workflow
Service
Configuration
Manag
es
Route
Revision
Revision
Record and
manage history
Routes
Trafﬁc
To

Workflow
Service
Configuration
Manag
es
Route
Revision
Revision
Record and
manage history
Routes
Trafﬁc
To
Knative

Workflow
Service
Configuration
Manag
es
Route
Revision
Revision
Record and
manage history
Routes
Traffic
To
Knative
Deployment
Replica Set
Pod

1. Activates and scale up/down based on request.
2. Manages code and configuration revisions
3. Integrates with different networking solutions for routes
4. Support custom domain and certificate management
Benefits

https://knative.dev/
https://github.com/knative/serving
https://developers.redhat.com/topics/serverless-architecture/
https://knative.dev/docs/install/
References

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Managing serverless workloads with knative

1. Managing serverless workloads with Knative

2. savitaashture savita-ashture Savita Ashture @ savitaashture It's all about me :)

3. Agenda ➢ Serverless Again :) ○ Overview ➢ Knative ○ Overview, Modules, Products ➢ Serving ○ Terminology, Workflow ➢ Demo ○ Migrating existing K8S Deployment to Knative Service

4. SERVERLESS

5. Serverless? -- CNCF Deﬁnition, https://www.cncf.io/blog/2018/02/14/cncf-takes-ﬁrst-step-towards-serverless-co mputing/ Events Action Result

6. 1. No worries about infrastructure 2. Auto scaling 3. Pay as you go Principles

7. Knative

9. Knative Kubernetes-based platform to deploy and manage modern serverless workloads. 1. Open Source project 2. Acts as a layer between Kubernetes and Serverless 3. Can run anywhere: on premises, cloud and third-party data center https://knative.dev/blog/2020/02/03/2019-annual-report/

10. Knative Modules Build Serving Eventing Knative Kubernetes Platform Primitives

11. Knative Modules Build Serving Eventing Knative Kubernetes Platform Primitives

12. Knative Modules Build Serving Eventing Knative Kubernetes Platform Primitives Tekton

13. Knative Modules Knative Kubernetes Platform Primitives Serving Eventing

14. Products Platform Primitives Products Kubernetes Serving Eventing Google cloud run SAP Kyma Red Hat Openshift Pivotal Function Service Trigger MeshIBM Cloud Kubernetes service

15. Serving

16. Terminology Object Short Form ● Service ksvc ● Configuration cfg ● Route rt Knative Kind: Service Knative Service k8s Service ● Revision rev User can Creates Serving Creates

17. Workflow Service Configuration Manag es Route

18. Workflow Service Configuration Manag es Route Revision Revision Record and manage history

19. Workflow Service Configuration Manag es Route Revision Revision Record and manage history Routes Trafﬁc To

20. Workflow Service Configuration Manag es Route Revision Revision Record and manage history Routes Trafﬁc To Knative

21. Workflow Service Configuration Manag es Route Revision Revision Record and manage history Routes Traffic To Knative Deployment Replica Set Pod

22. Workflow Service Configuration Manag es Route Revision Revision Record and manage history Routes Traffic To Knative Deployment Replica Set Pod Kubernetes

23. 1. Activates and scale up/down based on request. 2. Manages code and configuration revisions 3. Integrates with different networking solutions for routes 4. Support custom domain and certificate management Benefits

24. Demo

25. https://knative.dev/ https://github.com/knative/serving https://developers.redhat.com/topics/serverless-architecture/ https://knative.dev/docs/install/ References

26. Thank you

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