zones: ignore unknown wireguard endpoints

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

pkg/zones/machine_rings.go

@@ -2,6 +2,7 @@ package zones
 
 import (
 	"bytes"
+	"errors"
 	"fmt"
 	"os"
 
@@ -135,7 +136,11 @@ func (m *Machine) applyWireguardConfig(ring int, wg *wireguard.Config) error {
 	}
 
 	for _, peer := range wg.Peer {
-		if err := m.applyWireguardPeerConfig(ring, peer); err != nil {
+		err := m.applyWireguardPeerConfig(ring, peer)
+		switch {
+		case errors.Is(err, ErrUnknownNode):
+			// ignore unknown peers
+		case err != nil:
 			err = core.Wrapf(err, "%s: wg%v:%s", m.Name, ring, addr)
 			return err
 		}