func defaultPriorities() sets.String {
return sets.NewString(
// Prioritize nodes by least requested utilization.
factory.RegisterPriorityFunction("LeastRequestedPriority", priorities.LeastRequestedPriority, 10),
// Prioritizes nodes to help achieve balanced resource usage
factory.RegisterPriorityFunction("BalancedResourceAllocation", priorities.BalancedResourceAllocation, 20),
// spreads pods by minimizing the number of pods (belonging to the same service or replication controller) on the same node.
factory.RegisterPriorityFunction("LeastResourceRemain", priorities.LeastResourceRemain, 30),
factory.RegisterPriorityConfigFactory(
"SelectorSpreadPriority",
factory.PriorityConfigFactory{
Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
return priorities.NewSelectorSpreadPriority(args.ServiceLister, args.ControllerLister)
},
Weight: 40,
},
),
factory.RegisterPriorityConfigFactory(
"NetworkSpreadPriority",
factory.PriorityConfigFactory{
Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
return priorities.NewNetworkSpreadPriority(args.ServiceLister, args.ControllerLister)
},
Weight: 50,
},
),
)
}
func init() {
factory.RegisterAlgorithmProvider(factory.DefaultProvider, defaultPredicates(), defaultPriorities())
// EqualPriority is a prioritizer function that gives an equal weight of one to all nodes
// Register the priority function so that its available
// but do not include it as part of the default priorities
factory.RegisterPriorityFunction("EqualPriority", scheduler.EqualPriority, 1)
// ServiceSpreadingPriority is a priority config factory that spreads pods by minimizing
// the number of pods (belonging to the same service) on the same node.
// Register the factory so that it's available, but do not include it as part of the default priorities
// Largely replaced by "SelectorSpreadPriority", but registered for backward compatibility with 1.0
// factory.RegisterPriorityConfigFactory(
// "ServiceSpreadingPriority",
// factory.PriorityConfigFactory{
// Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
// return priorities.NewSelectorSpreadPriority(args.ServiceLister, algorithm.EmptyControllerLister{})
// },
// Weight: 1,
// },
//)
// PodFitsPorts has been replaced by PodFitsHostPorts for better user understanding.
// For backwards compatibility with 1.0, PodFitsPorts is regitered as well.
// factory.RegisterFitPredicate("PodFitsPorts", predicates.PodFitsHostPorts)
}
