package xds import ( envoy_core_v3 "github.com/envoyproxy/go-control-plane/envoy/config/core/v3" "github.com/hashicorp/consul/agent/structs" ) func firstHealthyTarget( targets map[string]*structs.DiscoveryTarget, targetHealth map[string]structs.CheckServiceNodes, primaryTarget string, secondaryTargets []string, ) string { series := make([]string, 0, len(secondaryTargets)+1) series = append(series, primaryTarget) series = append(series, secondaryTargets...) for _, targetID := range series { target, ok := targets[targetID] if !ok { continue } endpoints, ok := targetHealth[targetID] if !ok { continue } for _, ep := range endpoints { healthStatus, _ := calculateEndpointHealthAndWeight(ep, target.Subset.OnlyPassing) if healthStatus == envoy_core_v3.HealthStatus_HEALTHY { return targetID } } } return primaryTarget // if everything is broken just use the primary for now }