mirror of https://github.com/hashicorp/consul
57 lines
1.8 KiB
Go
57 lines
1.8 KiB
Go
package xds
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import (
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"fmt"
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"github.com/hashicorp/consul/agent/proxycfg"
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"github.com/hashicorp/consul/agent/structs"
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)
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func UpstreamSNI(u *structs.Upstream, subset string, cfgSnap *proxycfg.ConfigSnapshot) string {
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if u.DestinationType == "prepared_query" {
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return QuerySNI(u.DestinationName, u.Datacenter, cfgSnap)
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}
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return ServiceSNI(u.DestinationName, subset, u.DestinationNamespace, u.Datacenter, cfgSnap)
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}
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func DatacenterSNI(dc string, cfgSnap *proxycfg.ConfigSnapshot) string {
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return fmt.Sprintf("%s.internal.%s", dc, cfgSnap.Roots.TrustDomain)
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}
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func ServiceSNI(service string, subset string, namespace string, datacenter string, cfgSnap *proxycfg.ConfigSnapshot) string {
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if namespace == "" {
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namespace = "default"
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}
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if datacenter == "" {
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datacenter = cfgSnap.Datacenter
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}
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if subset == "" {
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return fmt.Sprintf("%s.%s.%s.internal.%s", service, namespace, datacenter, cfgSnap.Roots.TrustDomain)
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} else {
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return fmt.Sprintf("%s.%s.%s.%s.internal.%s", subset, service, namespace, datacenter, cfgSnap.Roots.TrustDomain)
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}
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}
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func QuerySNI(service string, datacenter string, cfgSnap *proxycfg.ConfigSnapshot) string {
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if datacenter == "" {
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datacenter = cfgSnap.Datacenter
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}
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return fmt.Sprintf("%s.default.%s.query.%s", service, datacenter, cfgSnap.Roots.TrustDomain)
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}
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func TargetSNI(target structs.DiscoveryTarget, cfgSnap *proxycfg.ConfigSnapshot) string {
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return ServiceSNI(target.Service, target.ServiceSubset, target.Namespace, target.Datacenter, cfgSnap)
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}
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func CustomizeClusterName(sni string, chain *structs.CompiledDiscoveryChain) string {
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if chain == nil || chain.CustomizationHash == "" {
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return sni
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}
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// Use a colon to delimit this prefix instead of a dot to avoid a
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// theoretical collision problem with subsets.
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return fmt.Sprintf("%s:%s", chain.CustomizationHash, sni)
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}
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