Using Kubernetes API from Go

on YouTube ↗38m

" summary

Shows how to use client-go to build a real tool that monitors node image storage and alerts on size changes, using trash to vendor dependencies and dapper to build an Ubuntu image; demo compiles, runs outside the cluster with a kubeconfig or in-cluster via service account, and replaces crude polling with informers and ListWatch to get event callbacks and a local cache. RBAC requires creating a ClusterRole (get/watch/list/update) and a ServiceAccount; deployment runs and the image pull triggers the expected alert.

AI-written summary · about

" chapters (21)

1. 0:00Introduction
2. 0:57Why we love Kubernetes
3. 2:36Kubernetes ecosystem
4. 3:17Extending Kubernetes
5. 5:05What is Kubernetes Controller
6. 6:26How to talk to Kubernetes API
7. 7:55Why Go
8. 8:37Build from Scratch
9. 9:06Tools
10. 10:32Add Go dependency
11. 11:39Cluster vs outside of cluster
12. 14:15Config
13. 15:22Node function
14. 16:35Override
15. 17:37Node polling
16. 18:32Informer
17. 19:29namespace
18. 21:24Shared Informer
19. 26:15Deploy
20. 29:50Permissions
21. 32:03Controller

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