Replace Pods without killing one Pod

mercari / tortoise

Tortoise: Shell-Shockingly-Good Kubernetes Autoscaling

MIT License

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Replace Pods without killing one Pod #279

Closed sanposhiho closed 8 months ago

sanposhiho commented 8 months ago

Currently one Pod must be killed to replace Pod for vertical scaling. But, it'd be safer if we don't have to lost even one Pod during update. We can achieve that by:

Change updater vpa's UpdateMode to Initial
Kick kubectl rollout restart.

sanposhiho commented 8 months ago

kubectl rollout restart isn't supported by client-go. We have to do:

https://stackoverflow.com/questions/61335318/how-to-restart-a-deployment-in-kubernetes-using-go-client
https://zenn.dev/tayusa/articles/a7df40b7d6fd5b