minikube-VPA

Trying to do manually VPA inside of kubernetes pod.

Complete

• Create simple pod with k8s deployment technique
• Create service for this pod and open internal port
• Create bash script for automatically access container interactive terminal
• Ensure that live change of VPA in single pod is not recommended and actually impossible

Research

Aliyun (or other cloud services) support modifying limit spec during runtime
https://partners-intl.aliyun.com/help/en/doc-detail/197267.htm

Trying to inject docker update command into container
https://docs.docker.com/engine/reference/commandline/update/

K8s official shows that updating limit of memory when pod is running is not recommended
kubernetes/kubernetes#39060

Recommended solution: k8s auto-scaling-extension
https://itnext.io/k8s-vertical-pod-autoscaling-fd9e602cbf81

TODO

• Apply auto-VPA in autoscaling.k8s.io/v1beta2
• Try to implement plugin for manually kill and recreate new pod through deployment