backends

const (
	// Rate balances incoming requests based on observed RPS.
	// As of this writing, it's the only balancing mode supported by GCE's
	// internal LB. This setting doesn't make sense for Kubernetes clusters
	// because requests can get proxied between instance groups in different
	// zones by kube-proxy without GCE even knowing it. Setting equal RPS on
	// all IGs should achieve roughly equal distribution of requests.
	Rate BalancingMode = "RATE"
	// Utilization balances incoming requests based on observed utilization.
	// This mode is only useful if you want to divert traffic away from IGs
	// running other compute intensive workloads. Utilization statistics are
	// aggregated per instances, not per container, and requests can get proxied
	// between instance groups in different zones by kube-proxy without GCE even
	// knowing about it.
	Utilization BalancingMode = "UTILIZATION"
	// Connections balances incoming requests based on a connection counter.
	// This setting currently doesn't make sense for Kubernetes clusters,
	// because we use NodePort Services as HTTP LB backends, so GCE's connection
	// counters don't accurately represent connections per container.
	Connections BalancingMode = "CONNECTION"
)

const (
	// LocalityLBPolicyDefault is the default locality lb policy for a backend service.
	LocalityLBPolicyDefault LocalityLBPolicyType = ""
	// LocalityLBPolicyWeightedMaglev is the locality lb policy for weighted load balancing by pods-per-node.
	LocalityLBPolicyWeightedMaglev LocalityLBPolicyType = "WEIGHTED_MAGLEV"
	// LocalityLBPolicyMaglev is the locality lb policy when weighted load balancing by pods-per-node is disabled.
	LocalityLBPolicyMaglev LocalityLBPolicyType = "MAGLEV"
)