How to specify algorithm-provider for kube-scheduler

[zhiweiv]

We want to use MostRequestedPriority in scheduler, from the source code https://github.com/kubernetes/kubernetes/blob/master/pkg/scheduler/algorithmprovider/defaults/defaults.go, if we specify ClusterAutoscalerProvider for kube-scheduler, it will use MostRequestedPriority

// Registers algorithm providers. By default we use 'DefaultProvider', 
// but user can specify one to be used by specifying flag.
factory.RegisterAlgorithmProvider(factory.DefaultProvider, predSet, priSet)
// Cluster autoscaler friendly scheduling algorithm.
factory.RegisterAlgorithmProvider(ClusterAutoscalerProvider, predSet,
	copyAndReplace(priSet, "LeastRequestedPriority", "MostRequestedPriority"))

https://kubernetes.io/docs/reference/command-line-tools-reference/kube-scheduler/

Can we achive this goal in AKS?

Thanks

[dstrebel]

AKS doesn't provide access to the kube-scheduler, so you're unable to change parameters in the kube-scheduler configuration.

[zhiweiv]

ok, thanks. I think I have to try custom scheduler.
https://kubernetes.io/docs/tasks/administer-cluster/configure-multiple-schedulers

[zhiweiv]

Custom scheduler seems can't run on Windows nodes, I posted an iead here: https://feedback.azure.com/forums/914020-azure-kubernetes-service-aks/suggestions/35169418-support-specify-algorithm-provider-clusterautoscal