Steuermann an Bord - Kubernetes Hands-On

Transcript

1. 1 STEUERMANN AN BORD – KUBERNETES HANDS-ON JavaLand, 30.03.2016 Nicolas Byl, codecentric AG
2. 2 . 1 EINFÜHRUNG
3. 2 . 2 Nicolas Byl Senior IT Consultant https://github.com/nbyl https://twitter.com/NicolasByl
4. 2 . 3 Agenda Wann? Was? 09:00 Einführung Docker Kubernetes 10:15 Kaffeepause 10:45 Lab 1: kubectl 12:45 Mittagessen
5. 2 . 4 Agenda (2) Wann? Was? 13:30 Helm Lab 2: Helm Charts 14:30 Kaffeepause 15:00 Deis Workflow Lab 3: Deis Workflow Wrap-Up 16:30 Ende
6. 2 . 5 Mission Statement Es gibt keine dummen Fragen! Hilfe zur Selbsthilfe
8. 2 . 6 3 . 1 DOCKER
10. 3 . 2
11. 3 . 3
12. 3 . 4
13. 3 . 5
14. 3 . 6 3 . 7 Dockerfile FROM java:8 MAINTAINER Marcel Birkner <marcel.birkner@codecentric.de> ADD target/edmp-sample-app*.jar app.jar RUN bash -c 'touch /app.jar' ENTRYPOINT ["java","-jar","/app.jar"]}
16. 3 . 8 4 . 1 KUBERNETES
17. "Kubernetes is an open-source platform for automating deployment, scaling, and operations of application containers across clusters of hosts, providing container- centric infrastructure."
18. 4 . 2 portable: public, private, hybrid, multi-cloud extensible: modular, pluggable, hookable, composable self-healing: auto-placement, auto-restart, auto- replication, auto-scaling
19. 4 . 3
20. 4 . 4 4 . 5 Pods & Co.
21. 4 . 6 Pods
22. 4 . 7 Replication Controller  P P P
23. 4 . 8 Deployment Kombination aus Pod und Replication Controller Einheit
24. apiVersion: extensions/v1beta1 kind: Deployment metadata: name: frontend spec: replicas: 3 template: metadata: labels: app: guestbook tier: frontend spec: containers: - name: php-redis image: gcr.io/google-samples/gb-frontend:v4 resources: requests:
25. 4 . 9 4 . 10 Services
26. 4 . 11 Endpunkt für eine Menge von Pods einen externen Endpunkt Auflösung über DNS Umgebungsvariablen
28. 4 . 12 5 . 1 LAB 0: SETUP
29. 5 . 2 Vorraussetzungen kubectl helm deis https://goo.gl/3YDCIe
30. 5 . 3 Konfiguration Teams bilden Clustername: teamX.kubeland.cc Konfigurationsdatei nach $HOME/.kube/config kubectl cluster-info
32. 6 . 1 6 . 2 Business Model Real-Time Statistics as a Service
33. 6 . 3 Unser Potentieller Investor
34. 7 . 1 LAB 1: KUBECTL
36. 8 . 1 8 . 2 Lasst und die Kunden jagen
37. 9 . 1 HELM
38. 9 . 2 Paket Manager Installation von komplexen Applikationen Repositories mit Kubernetes Artefakten Reproduzierbare Releases inklusive Rollback
39. 9 . 3 Architektur Server: tiller Client: helm CLI
40. 9 . 4 Konzept Installationsbeschreibung durch YAML-Templates Eigene Versionierung der Paketierung Bei Installation/Upgrade Ersetzung durch Standard oder vorgegebene Werte History von Deployments
41. 9 . 5 Beispiel helm init helm search redis [...] helm install stable/redis [...] helm install working-tiger stable/redis --set "image.version=3.2.8-r2" helm rollback working-tiger
42. 10 . 1 LAB 2: HELM
44. 11 . 1 Wir brauchen mehr Entwicker
45. 11 . 2
46. 12 . 1 DEIS WORKFLOW
47. 12 . 2 Twelve-Factor Applications
48. 12 . 3 Codebase One codebase tracked in revision control, many deploys Dependencies Explicitly declare and isolate dependencies Config Store config in the environment Backing Services Treat backing services as attached resources Build, release, run Strictly separate build and run stages Processes Execute the app as one or more stateless processes
49. 12 . 4 Port binding Export services via port binding Concurrency Scale out via the process model Disposability Maximize robustness with fast startup and graceful shutdown Dev/prod parity Keep development, staging, and production as similar as possible Logs Treat logs as event streams Admin processes Run admin/management tasks as one-off processes
51. 12 . 5 12 . 6 Architektur
52. 12 . 7 Struktur einer Deis Applikation
53. 12 . 8 Workflow
54. 13 . 1 LAB 3: DEIS WORKFLOW
55. 14 . 1 ENDE
56. 14 . 2 Cluster aufbauen minikube kops Tectonic
57. 14 . 3 Ausblick 1.6+ RBAC Federation Dynamic Storage Provisioning
58. 14 . 4 Links https://kubernetes.io https://helm.sh https://deis.com https://www.cncf.io https://www.openshift.com/promotions/kubernetes.html https://github.com/ramitsurana/awesome-kubernetes
59. 14 . 5 The End @NicolasByl Copyright 2017