zones: extend WriteWireguardConfig to include a Name indicating the ring ID

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/zones/rings.go

@@ -210,6 +210,7 @@ func (r *Ring) AddPeer(p *Machine) bool {
 		Address:    addr,
 		PrivateKey: ri.Keys.PrivateKey,
 		PeerConfig: wireguard.PeerConfig{
+			Name:      fmt.Sprintf("%s-%v", p.Name, r.ID),
 			PublicKey: ri.Keys.PublicKey,
 			Endpoint: wireguard.EndpointAddress{
 				Host: p.FullName(),
@@ -300,6 +301,7 @@ func (r *Ring) ExportConfig(p *Machine) (*wireguard.Config, error) {
 		case pp.Node == p:
 			// current
 			found = true
+			out.Interface.Name = pp.PeerConfig.Name
 			out.Interface.Address = pp.Address
 			out.Interface.PrivateKey = pp.PrivateKey
 		default: