A descheduler server for kubernetes cluster.
kubectl apply -f https://raw.githubusercontent.com/lentil1016/descheduler/master/manifest.yaml
This scheduler runs as a server, and it makes evicting decisions more "gentlely".
Every time it assesses resource status of the cluster and evicts certain number of pods(defined by spec.rules.maxEvictSize in config file). Then it waits for replicaSets pods of which is evicted to rebound to fully ready. Then it reassess the cluster and do another evicting again, until resources are banlanced.
It says you can get the nutrition you need from either food or pills, and I believe kubernetes-incubator/descheduler is the pills, this project is the food.
- Run as a server, not a job.
- Triggered deschedule by node ready event or by timer.
- Config node selector to limit the nodes descheduler will affect.
- Be able to deschedule:
- the pods that can find prefered node
- the pods with peer pods(pods created by the same SeplicaSet) on the same node
- the pods with peer pods in cluster
