給 RD 的 Kubernetes 初體驗 (GDG Cloud KH 2019-08 version)
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The document outlines a hands-on workshop conducted by William Yeh on Kubernetes, emphasizing its application in cloud environments through a series of practical labs. Each lab focuses on different aspects of Kubernetes, including setup, containerization, deployment, and service management. The document also provides links to resources and references for further learning in Kubernetes and container technologies.
給 RD 的 Kubernetes 初體驗 (GDG Cloud KH 2019-08 version)
- 1. Technical Manager William Yeh 葉秉哲 給 RD 的 Kubernetes 初體驗 … with a series of hands-on labs 2019-08-11
- 2. • PhD in Computer Science, NCTU, Taiwan • CSPO (Certified Scrum Product Owner) from Scrum Alliance • PSM I (Professional Scrum Master I) from Scrum.org • Technical manager @ Titansoft (since Mar 2019) • Server director & Scrum master @ Gogolook • Active speaker and trainer for software architecture, DevOps, agile, and theory of constraints
- 4. Containers Kubernetes Cloud Agenda Labs 1.0 — 3.0 4.0 — 5.0 6.0 — 7.0
- 5. Agenda Know promising trends Adopt gradually Prepare mindset Goals Containers Kubernetes Cloud Labs 1.0 — 3.0 4.0 — 5.0 6.0 — 7.0
- 6. GKE Setup🅐 a - Redeem Google Cloud coupon b - Create project in GCP c - Create GKE cluster
- 7. Redeem coupon Please follow steps in your handout NOW!
- 8. Create K8s-enabled Project https://console.cloud.google.com/projectselector2/kuber netes Should already done before you’re here...
- 9. Create GKE cluster gcloud config set project PROJECT_ID gcloud config set compute/zone us-west1-a gcloud container clusters create k8s201908 --num-nodes 3
- 11. Lab material See the demo first!
- 12. Lab material For each revision, pay attention to: 1. image versions 2. diff in code and configuration Use git diff --stat HEAD~1 HEAD to see diff between revisions. Tag 1.0 2.0 3.0 4.0 5.0 6.0 7.0
- 13. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 14. Lab material https://github.com/William-Yeh/workshop-k8s201908 or http://bit.ly/k8s-201908 for short 1. Open browser 2. Git clone to your laptop
- 15. Containers 1.0 - Legacy 2.0 - Docker 3.0 - Frontend/backend separation ��
- 16. Why containers?
- 17. Lab # 1.0 Legacy
- 18. Lab # 1.0 git checkout 1.0 git log
- 19. Lab # 1.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 20. app runtime OS kernel app runtime OS kernel Boundary of application packaging: pros and cons traditional deployment way virtual machine
- 21. app runtime OS kernel app runtime OS kernel app runtime OS kernel IaC (Infra as Code) traditional deployment way IaC tools ● Chef ● Puppet ● Ansible virtual machine
- 22. app runtime OS kernel app runtime OS kernel app runtime OS kernel Containers as application packaging units traditional deployment way container virtual machine
- 23. Lab # 2.0 Docker
- 24. Lab # 2.0 git checkout 2.0 git log git diff --stat HEAD~1 HEAD
- 25. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 26. Lab # 2.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 27. Lab # 3.0 Frontend/backend separation
- 28. Lab # 3.0 git checkout 3.0 git log git diff --stat HEAD~1 HEAD
- 29. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 30. app runtime OS kernel app runtime OS kernel app runtime OS kernel Recap: containers as application packaging units traditional deployment way container virtual machine
- 31. Lab # 3.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 32. Kubernetes 4.0 - Local Kubernetes 5.0 - Configuration ��
- 34. Lab # 4.0 Local Kubernetes
- 35. Lab # 4.0 git checkout 4.0 git log git diff --stat HEAD~1 HEAD
- 36. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 37. Concept gaps from Docker to Kubernetes
- 38. Container
- 40. container service . . . └── k8s ├── todoapi-service.yml └── todofrontend-service.yml Service
- 41. Service container service pod deployment --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0 k8s/todoapi-service.yml
- 42. service deployment --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0 k8s/todoapi-service.yml
- 43. container pod --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0
- 44. Container
- 46. • Shared volumes • IPC • Network Multi-Container Pods in Kubernetes Pod Container Multi-container pods and container communication in Kubernetes https://www.mirantis.com/blog/multi-container-pods-and-container-communication-in-kubernetes/
- 48. pod --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0 deployment
- 49. Selector & label 3 The selector field defines how the Deployment finds which Pods to manage. label selector
- 50. service deployment --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0
- 51. Service label selector 3 --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0
- 52. Recap
- 54. Service container service pod deployment --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0 k8s/todoapi-service.yml
- 55. pod --- kind: Service ... --- kind: Deployment ... spec: replicas: 3 template: # pod definition spec: containers: - name: todoapi image: todoapi:3.0 deployment service container
- 57. Make sure you’re using local Kubernetes kubectl config view kubectl config get-contexts kubectl config use-context docker-for-desktop or kubectl config use-context minikube How to use kubectl to manage multiple Kubernetes clusters https://success.docker.com/article/how-to-use-kubectl-to-manage-multiple-kubernetes-clusters
- 58. Lab # 4.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 59. CAUTION ● There’s one big issue in this Lab 4.0 Can you see? ● What if a image changes but version tag remains unchanged?
- 60. Lab # 5.0 Configuration
- 61. Lab # 5.0 git checkout 5.0 git log git diff --stat HEAD~1 HEAD
- 62. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 63. _v2 Service container pod deployment service Recap: containers as application packaging units 3
- 64. Lab # 5.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 65. Cloud 6.0 - Cloud (GKE for example) 7.0 - Canary release ��
- 66. Lab # 6.0 Cloud (GKE for example)
- 67. Lab # 6.0 git checkout 6.0 git log git diff --stat HEAD~1 HEAD
- 68. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 75. Lab # 6.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 76. Lab # 7.0 Canary release
- 77. Lab # 7.0 git checkout 7.0 git log git diff --stat HEAD~1 HEAD
- 78. Image tags Lab # Frontend API 1.0 N/A N/A 2.0 N/A 2.0 3.0 3.0 3.0 4.0 3.0 3.0 5.0 5.0 3.0 6.0 auto auto 7.0 auto auto & stable
- 82. Lab # 7.0 Review a. Architecture b. Main tasks c. Diff d. Tricks e. Questions?
- 83. Conclusion��
- 84. app runtime OS kernel app runtime OS kernel app runtime OS kernel Recap: containers as application packaging units traditional deployment way container virtual machine
- 86. Agenda Know promising trends Adopt gradually Prepare mindset Goals Containers Kubernetes Cloud Labs 1.0 — 3.0 4.0 — 5.0 6.0 — 7.0
- 87. Kubernetes Terminology “Kubernetes 101: Pods, Nodes, Containers, and Clusters” • Author: Daniel Sanche • Date: 2018-01-02 • URL: https://medium.com/google-cloud/kubernetes-101-pods-nodes-c ontainers-and-clusters-c1509e409e16 (or http://bit.ly/post-k8s-101 for short)
- 88. Not told today Session affinity https://medium.com/@diegomrtnzg/redirect-your-users-to-the-same-pod -by-using-session-affinity-on-kubernetes-baebf6a1733b StatefulSet https://godleon.github.io/blog/Kubernetes/k8s-StatefulSets-Overview / Persistent Volume & Claim https://godleon.github.io/blog/Kubernetes/k8s-PersistentVolume-Over view/
- 89. Next step? https://www.udemy.com/course/certified-kubernetes-application-developer/
- 90. Questions?
- 91. Attribution ● review by Alina Oleynik from the Noun Project