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