zones: WireguardConfigWriter() [WIP]

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

pkg/zones/zone_rings.go

@@ -15,6 +15,7 @@ type machineRinger interface {
 
 	SyncWireguardConfig(ring int) error
 	PruneWireguardConfig(ring int) error
+	WriteWireguardConfig(ring int) error
 }
 
 // SyncWireguardConfig updates all wgN.conf files for the specified
@@ -36,6 +37,17 @@ func (z *Zone) PruneWireguardConfig(ring int) error {
 	return pruneWireguardConfig(z, ring)
 }
 
+func (z *Zone) WriteWireguardConfig(ring int) error {
+	switch ring {
+	case 0:
+		return writeWireguardConfig(z.zones, z.zones, ring)
+	case 1:
+		return writeWireguardConfig(z.zones, z, ring)
+	default:
+		return fs.ErrInvalid
+	}
+}
+
 // WriteWireguardKeys rewrites all wgN.{key,pub} files on this zone
 func (z *Zone) WriteWireguardKeys(ring int) error {
 	return writeWireguardKeys(z, ring)
@@ -65,6 +77,22 @@ func (m *Zones) PruneWireguardConfig(ring int) error {
 	return pruneWireguardConfig(m, ring)
 }
 
+func (m *Zones) WriteWireguardConfig(ring int) error {
+	switch ring {
+	case 0:
+		return writeWireguardConfig(m, m, ring)
+	case 1:
+		var err error
+		m.ForEachZone(func(z *Zone) bool {
+			err = writeWireguardConfig(m, z, ring)
+			return err != nil
+		})
+		return err
+	default:
+		return fs.ErrInvalid
+	}
+}
+
 // WriteWireguardKeys rewrites all wgN.{key,pub} files
 func (m *Zones) WriteWireguardKeys(ring int) error {
 	return writeWireguardKeys(m, ring)