open-consul/agent/xds/naming.go

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package xds
import (
"fmt"
"github.com/hashicorp/consul/agent/structs"
)
func CustomizeClusterName(clusterName string, chain *structs.CompiledDiscoveryChain) string {
if chain == nil || chain.CustomizationHash == "" {
return clusterName
}
// Use a colon to delimit this prefix instead of a dot to avoid a
// theoretical collision problem with subsets.
return fmt.Sprintf("%s~%s", chain.CustomizationHash, clusterName)
}