zones: writeRingInfo [WIP]

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

pkg/zones/machine_rings.go

@@ -3,6 +3,7 @@ package zones
 import (
 	"bytes"
 	"fmt"
+	"io/fs"
 	"os"
 
 	"darvaza.org/core"
@@ -147,5 +148,73 @@ func (m *Machine) createRingInfo(ring int, enabled bool) error {
 		Keys:    keys,
 	}
 
-	return m.applyRingInfo(ring, ri)
+	err = m.applyRingInfo(ring, ri)
+	if err != nil {
+		return err
+	}
+
+	return m.writeRingInfo(ri)
+}
+
+func (m *Machine) writeRingInfo(ri *RingInfo) error {
+	var err error
+
+	if m == nil || ri == nil {
+		return fs.ErrInvalid
+	}
+
+	err = m.writeRingInfoPrivate(ri.Ring, ri.Keys.PrivateKey)
+	if err != nil {
+		return err
+	}
+
+	err = m.writeRingInfoPublic(ri.Ring, ri.Keys.PublicKey)
+	if err != nil {
+		return err
+	}
+
+	if !ri.Enabled {
+		return m.deleteRingInfoConf(ri.Ring)
+	}
+
+	return m.writeRingInfoConf(ri.Ring, ri.Keys.PrivateKey)
+}
+
+func (m *Machine) writeRingInfoPrivate(ring int, _ wireguard.PrivateKey) error {
+	f, err := m.CreateTruncFile("wg%v.key", ring)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	return nil
+}
+func (m *Machine) writeRingInfoPublic(ring int, _ wireguard.PublicKey) error {
+	f, err := m.CreateTruncFile("wg%v.pub", ring)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	return nil
+}
+func (m *Machine) writeRingInfoConf(ring int, _ wireguard.PrivateKey) error {
+	f, err := m.CreateTruncFile("wg%v.conf", ring)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	return nil
+}
+
+func (m *Machine) deleteRingInfoConf(ring int) error {
+	err := m.RemoveFile("wg%v.conf", ring)
+
+	switch err {
+	case os.ErrNotExist:
+		return nil
+	default:
+		return err
+	}
 }