zones: introduce Machine.PublicAddresses()

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

pkg/zones/machine_scan.go

@@ -0,0 +1,26 @@
+package zones
+
+import (
+	"context"
+	"net/netip"
+	"time"
+)
+
+func (m *Machine) lookupNetIP() ([]netip.Addr, error) {
+	timeout := 2 * time.Second
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+
+	defer cancel()
+
+	return m.zone.zones.resolver.LookupNetIP(ctx, "ip", m.FullName())
+}
+
+func (m *Machine) updatePublicAddresses() error {
+	addrs, err := m.lookupNetIP()
+	if err != nil {
+		return err
+	}
+
+	m.PublicAddresses = addrs
+	return nil
+}