consul/agent/xds/locality_policy.go

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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package xds
import (
"fmt"
"github.com/hashicorp/consul/agent/structs"
)
func groupedEndpoints(locality *structs.Locality, policy *structs.DiscoveryPrioritizeByLocality, csns structs.CheckServiceNodes) ([]structs.CheckServiceNodes, error) {
switch {
case policy == nil || policy.Mode == "" || policy.Mode == "none":
return []structs.CheckServiceNodes{csns}, nil
case policy.Mode == "failover":
return prioritizeByLocalityFailover(locality, csns), nil
default:
return nil, fmt.Errorf("unexpected priortize-by-locality mode %q", policy.Mode)
}
}