consul/agent/xds/sni.go

48 lines
1.5 KiB
Go

package xds
import (
"fmt"
"github.com/hashicorp/consul/agent/proxycfg"
"github.com/hashicorp/consul/agent/structs"
)
func UpstreamSNI(u *structs.Upstream, subset string, cfgSnap *proxycfg.ConfigSnapshot) string {
if u.DestinationType == "prepared_query" {
return QuerySNI(u.DestinationName, u.Datacenter, cfgSnap)
}
return ServiceSNI(u.DestinationName, subset, u.DestinationNamespace, u.Datacenter, cfgSnap)
}
func DatacenterSNI(dc string, cfgSnap *proxycfg.ConfigSnapshot) string {
return fmt.Sprintf("%s.internal.%s", dc, cfgSnap.Roots.TrustDomain)
}
func ServiceSNI(service string, subset string, namespace string, datacenter string, cfgSnap *proxycfg.ConfigSnapshot) string {
if namespace == "" {
namespace = "default"
}
if datacenter == "" {
datacenter = cfgSnap.Datacenter
}
if subset == "" {
return fmt.Sprintf("%s.%s.%s.internal.%s", service, namespace, datacenter, cfgSnap.Roots.TrustDomain)
} else {
return fmt.Sprintf("%s.%s.%s.%s.internal.%s", subset, service, namespace, datacenter, cfgSnap.Roots.TrustDomain)
}
}
func QuerySNI(service string, datacenter string, cfgSnap *proxycfg.ConfigSnapshot) string {
if datacenter == "" {
datacenter = cfgSnap.Datacenter
}
return fmt.Sprintf("%s.default.%s.query.%s", service, datacenter, cfgSnap.Roots.TrustDomain)
}
func TargetSNI(target structs.DiscoveryTarget, cfgSnap *proxycfg.ConfigSnapshot) string {
return ServiceSNI(target.Service, target.ServiceSubset, target.Namespace, target.Datacenter, cfgSnap)
}