Seacon 2020 - Cloud Plattformen entmystifiziert

Transcript

2. Agenda 2 • Who am I? • Why this talk? • Historical Timeline • What is a platform? • Technologies • Kubernetes • Cloud Foundry • Knative • Demo • Final comparison
3. Novatec Cloud Consultant Stuttgart Cloud Foundry Meetup Organizer @maeddes #whoami
4. Scenario Legacy Cloud SKILL? SECURITY? TECHNOLOGIES? PROVIDER?
5. Offerings STRATEGY EDUCATION MIGRATION
6. LXC Container/Platform history 2018 2017 2014 2013 2011 2008 1979 …. … … . chroot Cloud Foundry Virtualization and isolation in subsystems. Examples: FreeBSD Jails, Linux VServer cgroups (2007) namespaces (2002) istio knative kubernetes eirini 2020 . cf-for-k8s
7. Hype & Reality
8. Hype & Reality
9. Apps Services Push Start/ Stop Scale Delete Routes Create/Delete Map/Unmap Create/Delete Bind/Unbind Minimal Concepts
10. Deployment s Services NetworkPolici es LoadBalancer NodePort ReplicaSet StatefulSet ClusterIP Ingress Pods Container IngressControllers HPA ConfigMaps Secrets apply YAML YAML YAML Minimal Concepts Docker Image
11. Hype & Reality
13. What is a platform? (also known as Humans and Computers) 13
14. App Dev DB Systems Admin “Provider” Platform Admin Secrets/Config Source Code Build Artifact Buildpacks / Images Containers Git CI/CD
15. Day 0 Day 1 Day 2 Day 3 • Architecture • Design • Implementation • Code-to-Repo • Build • Package • Containerize • Deploy • Multi-Tenancy • Run • Scale • Recover • Update & Patch • Observe • Version • Delete • Clean Up • End of Life
16. Workload Abstraction Layers Virtual Machines Container Applications Functions Platform Support? • Functions • Event-Driven • 12-factor apps • Stateful apps • more “types”?
17. Easy to do the right thing 17
18. Kubernetes Intro • Container Runtime/Platform • Founded in 2013, released in 2014 • Idea based on Google’s internal platform Borg • Not opinionated, open, extensible & configurable • Major project of the Cloud Native Computing Foundation (CNCF) landscape
19. “Image build” runtime app app runtime base container runtime app Kubernetes Basics - Container
20. runtime app runtime app kubectl create pod replica set runtime app runtime app pod v2 replica set v2 deployment service/ingress endpoint Kubernetes Basics - Orchestration
21. The value of Kubernetes • Generic runtime for container workloads • Automatic recovery from crashed pods • Manual and automatic scaling of pods • Rolling update for new version of workloads • Extensible and configurable • Robust • Elasticity on workload and infrastructure level • Widely adopted and available “everywhere”
22. The problems with Kubernetes • Container-content agnostic • Steep initial learning curve • Extensible and configurable • ”So much YAML” Suitable Kubernetes workloads • Container images Virtual Machines Container Applications Functions
23. Day 0 Day 1 Day 2 Day 3 • Architecture • Design • Implementation • Code-to-Repo • Build • Package • Containerize • Deploy • Multi-Tenancy • Run • Scale • Recover • Update & Patch • Observe • Version • Delete • Clean Up • End of Life Kubernetes responsibility
24. Cloud Foundry Intro • Platform as a Service (PaaS) • Founded in 2008, released in 2011 • Fast and easy to build, test, deploy & scale apps • Opinionated, focus on simplicity for dev “Here is my source code, run it on the cloud for me - I do not care how” (Onsi Fakhouri, Pivotal)
25. app buildpack cf push app Applications Services container route cf bind-service Basics
26. Day 0 Day 1 Day 2 Day 3 • Architecture • Design • Implementation • Code-to-Repo • Build • Package • Containerize • Deploy • Multi-Tenancy • Run • Scale • Recover • Update & Patch • Observe • Version • Delete • Clean Up • End of Life Cloud Foundry responsibility
27. The value of Cloud Foundry • “Things Kubernetes does” • Simplicity • Application-aware behaviour • Developer Experience • Abstraction layer above containers • 12-factor style split of workloads
28. The problems with Cloud Foundry • Popularity • Limitation to buildpacks coverage • Adoption • Late integration with Kubernetes Suitable Cloud Foundry workloads • Apps, Containers Virtual Machines Container Applications Functions
29. Knative • Open Sourced and initiated by Google • Support by Red Hat, Pivotal, IBM … • Runs on top of Kubernetes and Istio • Focus on symplifying K8s experience and provide serverless capabilities • Auto-scale on request load (down to 0)
30. VM Kubernetes Istio Serving Eventing
31. VM Kubernetes Istio Serving Eventing Tekton
32. “Image build” runtime app app runtime base container runtime app
33. kn service create —image=maeddes/test service route configuration revision revision revision
34. Route Revision Service Minimal Concepts Image
35. Day 0 Day 1 Day 2 Day 3 • Architecture • Design • Implementation • Code-to-Repo • Build • Package • Containerize • Deploy • Multi-Tenancy • Run • Scale • Recover • Update & Patch • Observe • Version • Delete • Clean Up • End of Life Knative Serving
36. The value of Knative • “Things Kubernetes does” • Born on Kubernetes • Simplicity • Function as a Service • Scale to Zero • Weighted Routing
37. The problems with Knative • Requires container • Adoption • Late integration with Kubernetes Suitable Cloud Foundry workloads • Apps, Containers, Functions Virtual Machines Container Applications Functions
38. provides most container platform technical capabilities + easy devX + “containerless” + scale to zero + revisions + percentage routing
39. LXC Container/Platform history 2018 2017 2014 2013 2011 2008 1979 …. … … . chroot Cloud Foundry Virtualization and isolation in subsystems. Examples: FreeBSD Jails, Linux VServer cgroups (2007) namespaces (2002) istio knative kubernetes eirini 2020 . cf-for-k8s
40. What’s new “run CF workloads/apps on K8s”
41. Traditional
42. New
43. cf push kubectl create
44. What’s new “run CF on K8s”
45. Traditional
46. New
47. What’s new
48. (many!) Kubernetes Offerings local public
49. Cloud Foundry on Kubernetes - Blogs/Tutorials cf-for-k8s
50. Novatec Consulting GmbH Dieselstraße 18/1 D-70771 Leinfelden-Echterdingen T. +49 711 22040-700 info@novatec-gmbh.de www.novatec-gmbh.de 50 https://www.youtube.com/playlist?list=PL09jzegbfUhHSXw5JyaJSSBC_DYFRTidz @maeddes Matthias Haeussler