WIP

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

pkg/wireguard/config.go

@@ -15,24 +15,19 @@ import (
 )
 
 var configTemplate = template.Must(template.New("config").Funcs(template.FuncMap{
-	"PrefixJoin": func(a []netip.Prefix, sep string) string {
-		s := make([]string, len(a))
-		for i, p := range a {
-			s[i] = p.String()
-		}
-		return strings.Join(s, sep)
-	},
+	"StringsJoin": strings.Join,
 }).Parse(`[Interface]
 Address = {{.Interface.Address}}
 PrivateKey = {{.Interface.PrivateKey}}
 ListenPort = {{.Interface.ListenPort}}
-{{- range .Peer }}
+{{range .Peer}}
 
 [Peer]
+# {{.Endpoint.Name}}
 PublicKey = {{.PublicKey}}
 Endpoint = {{.Endpoint}}
-AllowedIPs = {{ PrefixJoin .AllowedIPs ", "}}
-{{- end }}
+AllowedIPs = {{ StringsJoin .AllowedIPs ", "}}
+{{end}}
 `))
 
 // Config represents a wgN.conf file

pkg/zones/machine.go

@@ -61,11 +61,6 @@ func (m *Machine) SetGateway(enabled bool) error {
 	return m.SyncWireguardConfig(0)
 }
 
-// Zone indicates the [Zone] this machine belongs to
-func (m *Machine) Zone() int {
-	return m.zone.ID
-}
-
 func (m *Machine) getPeerByName(name string) (*Machine, bool) {
 	return m.zone.zones.GetMachineByName(name)
 }

pkg/zones/machine_rings.go

@@ -268,23 +268,22 @@ func (m *Machine) SyncWireguardConfig(ring int) error {
 	return m.zone.SyncWireguardConfig(ring)
 }
 
-// WriteWireguardConfig ...
 func (m *Machine) WriteWireguardConfig(ring int) error {
-	r, err := NewRing(m.zone, ring)
+	r, err := m.zone.GetRing(ring)
 	if err != nil {
 		return err
 	}
 
-	return m.writeWireguardRingConfig(r)
+	return m.writeWireguardRing(r)
 }
 
-func (m *Machine) writeWireguardRingConfig(r *Ring) error {
-	wg, err := r.ExportConfig(m)
+func (m *Machine) writeWireguardRing(r *Ring) error {
+	wg, err := r.ExportConfig(m.ID)
 	if err != nil {
 		return nil
 	}
 
-	f, err := m.CreateTruncFile("wg%v.conf", r.ID)
+	f, err := m.CreateTruncFile("wg%v.conf", r.Ring)
 	if err != nil {
 		return err
 	}

pkg/zones/rings.go

@@ -2,7 +2,6 @@ package zones
 
 import (
 	"fmt"
-	"io/fs"
 	"net/netip"
 
 	"git.jpi.io/amery/jpictl/pkg/wireguard"
@@ -176,178 +175,7 @@ func RingOneAddress(zoneID, nodeID int) (netip.Addr, bool) {
 	case !ValidZoneID(zoneID) || !ValidNodeID(nodeID):
 		return netip.Addr{}, false
 	default:
-		a4 := [4]uint8{10, uint8(zoneID << 4), 0, uint8(nodeID)}
+		a4 := [4]uint8{10, 0, uint8(zoneID << 4), uint8(nodeID)}
 		return netip.AddrFrom4(a4), true
 	}
 }
-
-var (
-	_ MachineIterator = (*Ring)(nil)
-)
-
-// A Ring describes all peers on a ring
-type Ring struct {
-	RingAddressEncoder
-
-	Peers []*RingPeer
-}
-
-// AddPeer adds a [Machine] to the ring
-func (r *Ring) AddPeer(p *Machine) bool {
-	_, ok := p.getRingInfo(r.ID)
-	if !ok {
-		return false
-	}
-
-	rp := r.newPeer(p)
-	r.Peers = append(r.Peers, rp)
-	return true
-}
-
-func (r *Ring) newPeer(p *Machine) *RingPeer {
-	nodeID := p.ID
-	zoneID := p.Zone()
-
-	ri, _ := p.getRingInfo(r.ID)
-	addr, _ := r.Encode(zoneID, nodeID)
-
-	rp := &RingPeer{
-		Node:       p,
-		Address:    addr,
-		PrivateKey: ri.Keys.PrivateKey,
-		PeerConfig: wireguard.PeerConfig{
-			PublicKey: ri.Keys.PublicKey,
-			Endpoint: wireguard.EndpointAddress{
-				Host: p.FullName(),
-				Port: r.Port,
-			},
-		},
-	}
-
-	if r.ID == 0 {
-		rp.AllowRingOneNetwork(zoneID)
-		rp.AllowIP(addr)
-	} else {
-		rp.AllowIP(addr)
-
-		if p.IsGateway() {
-			zones := p.zone.zones
-			rp.AllowOtherRingOneNetworks(zones, zoneID)
-			rp.AllowRingZeroGateways(zones)
-		}
-	}
-
-	return rp
-}
-
-// ForEachMachine calls a function for each Machine in the ring
-// until instructed to terminate the loop
-func (r *Ring) ForEachMachine(fn func(*Machine) bool) {
-	for _, pp := range r.Peers {
-		if fn(pp.Node) {
-			return
-		}
-	}
-}
-
-// ExportConfig ...
-func (r *Ring) ExportConfig(p *Machine) (*wireguard.Config, error) {
-	cur, ok := r.getMachine(p)
-	if !ok {
-		return nil, fs.ErrNotExist
-	}
-
-	out := &wireguard.Config{
-		Interface: wireguard.InterfaceConfig{
-			Address:    cur.Address,
-			PrivateKey: cur.PrivateKey,
-			ListenPort: r.Port,
-		},
-	}
-
-	for _, pp := range r.Peers {
-		if pp.Node != p {
-			pc := pp.PeerConfig
-			out.Peer = append(out.Peer, pc)
-		}
-	}
-	return out, nil
-}
-
-func (r *Ring) getMachine(p *Machine) (*RingPeer, bool) {
-	for _, pp := range r.Peers {
-		if pp.Node == p {
-			return pp, true
-		}
-	}
-
-	return nil, false
-}
-
-// A RingPeer is a node on a [Ring]
-type RingPeer struct {
-	Node *Machine
-
-	Address    netip.Addr
-	PrivateKey wireguard.PrivateKey
-	PeerConfig wireguard.PeerConfig
-}
-
-// AllowIP ...
-func (rp *RingPeer) AllowIP(addr netip.Addr) {
-	rp.PeerConfig.AllowedIPs = append(rp.PeerConfig.AllowedIPs,
-		netip.PrefixFrom(addr, 32),
-	)
-}
-
-// AllowNetwork ...
-func (rp *RingPeer) AllowNetwork(addr netip.Addr, bits int) {
-	rp.PeerConfig.AllowedIPs = append(rp.PeerConfig.AllowedIPs,
-		netip.PrefixFrom(addr, bits),
-	)
-}
-
-// AllowRingOneNetwork ...
-func (rp *RingPeer) AllowRingOneNetwork(zoneID int) {
-	addr, _ := RingOneAddress(zoneID, 0)
-	rp.AllowNetwork(addr, 12)
-}
-
-// AllowOtherRingOneNetworks ...
-func (rp *RingPeer) AllowOtherRingOneNetworks(m *Zones, zoneID int) {
-	m.ForEachZone(func(z *Zone) bool {
-		if z.ID != zoneID {
-			addr, _ := RingOneAddress(z.ID, 0)
-			rp.AllowNetwork(addr, 12)
-		}
-		return false
-	})
-}
-
-// AllowRingZeroGateways ...
-func (rp *RingPeer) AllowRingZeroGateways(m *Zones) {
-	m.ForEachMachine(func(p *Machine) bool {
-		switch {
-		case !p.IsGateway():
-			// skip regular nodes
-		default:
-			addr, _ := RingZeroAddress(p.Zone(), p.ID)
-			rp.AllowIP(addr)
-		}
-		return false
-	})
-}
-
-// NewRing ...
-func NewRing(m MachineIterator, ring int) (*Ring, error) {
-	r := &Ring{
-		RingAddressEncoder: Rings[ring],
-	}
-
-	m.ForEachMachine(func(p *Machine) bool {
-		r.AddPeer(p)
-		return false
-	})
-
-	return r, nil
-}

pkg/zones/zone_rings.go

@@ -1,88 +1,39 @@
 package zones
 
 import (
-	"io/fs"
 	"os"
+
+	"git.jpi.io/amery/jpictl/pkg/wireguard"
 )
 
-var (
-	_ machineRinger = (*Zone)(nil)
-	_ machineRinger = (*Zones)(nil)
-)
+type Ring struct {
+	Ring int
+}
 
-type machineRinger interface {
-	MachineIterator
+func (*Ring) ExportConfig(_ int) (*wireguard.Config, error) {
+	return nil, nil
+}
 
-	PruneWireguardConfig(ring int) error
+func (*Zone) GetRing(_ int) (*Ring, error) {
+	return &Ring{}, nil
 }
 
 // SyncWireguardConfig updates all wgN.conf files for the specified
 // ring
 func (z *Zone) SyncWireguardConfig(ring int) error {
-	switch ring {
-	case 0:
-		return syncWireguardConfig(z.zones, ring)
-	case 1:
-		return syncWireguardConfig(z, ring)
-	default:
-		return fs.ErrInvalid
-	}
-}
-
-// PruneWireguardConfig removes wgN.conf files of machines with
-// the corresponding ring disabled.
-func (z *Zone) PruneWireguardConfig(ring int) error {
-	return pruneWireguardConfig(z, ring)
-}
-
-// WriteWireguardKeys rewrites all wgN.{key,pub} files on this zone
-func (z *Zone) WriteWireguardKeys(ring int) error {
-	return writeWireguardKeys(z, ring)
-}
-
-// SyncWireguardConfig updates all wgN.conf files for the specified
-// ring
-func (m *Zones) SyncWireguardConfig(ring int) error {
-	switch ring {
-	case 0:
-		return syncWireguardConfig(m, ring)
-	case 1:
-		var err error
-		m.ForEachZone(func(z *Zone) bool {
-			err = syncWireguardConfig(z, ring)
-			return err != nil
-		})
-		return err
-	default:
-		return fs.ErrInvalid
-	}
-}
-
-// PruneWireguardConfig removes wgN.conf files of machines with
-// the corresponding ring disabled on all zones
-func (m *Zones) PruneWireguardConfig(ring int) error {
-	return pruneWireguardConfig(m, ring)
-}
-
-// WriteWireguardKeys rewrites all wgN.{key,pub} files
-func (m *Zones) WriteWireguardKeys(ring int) error {
-	return writeWireguardKeys(m, ring)
-}
-
-func syncWireguardConfig(m machineRinger, ring int) error {
-	err := m.PruneWireguardConfig(ring)
+	err := z.PruneWireguardConfig(ring)
 	if err != nil {
 		return err
 	}
 
-	r, err := NewRing(m, ring)
+	r, err := z.GetRing(ring)
 	if err != nil {
 		return err
 	}
 
-	m.ForEachMachine(func(p *Machine) bool {
+	z.ForEachMachine(func(p *Machine) bool {
 		if _, ok := p.getRingInfo(ring); ok {
-			err = p.writeWireguardRingConfig(r)
+			err = p.writeWireguardRing(r)
 		}
 		return err != nil
 	})
@@ -90,10 +41,12 @@ func syncWireguardConfig(m machineRinger, ring int) error {
 	return err
 }
 
-func pruneWireguardConfig(m MachineIterator, ring int) error {
+// PruneWireguardConfig removes wgN.conf files of machines with
+// the corresponding ring disabled.
+func (z *Zone) PruneWireguardConfig(ring int) error {
 	var err error
 
-	m.ForEachMachine(func(p *Machine) bool {
+	z.ForEachMachine(func(p *Machine) bool {
 		_, ok := p.getRingInfo(ring)
 		if !ok {
 			err = p.RemoveWireguardConfig(ring)
@@ -104,10 +57,11 @@ func pruneWireguardConfig(m MachineIterator, ring int) error {
 	return err
 }
 
-func writeWireguardKeys(m MachineIterator, ring int) error {
+// WriteWireguardKeys rewrites all wgN.{key,pub} files on this zone
+func (z *Zone) WriteWireguardKeys(ring int) error {
 	var err error
 
-	m.ForEachMachine(func(p *Machine) bool {
+	z.ForEachMachine(func(p *Machine) bool {
 		err = p.WriteWireguardKeys(ring)
 		if os.IsNotExist(err) {
 			// ignore
@@ -119,3 +73,38 @@ func writeWireguardKeys(m MachineIterator, ring int) error {
 
 	return err
 }
+
+// PruneWireguardConfig removes wgN.conf files of machines with
+// the corresponding ring disabled on all zones
+func (m *Zones) PruneWireguardConfig(ring int) error {
+	var err error
+
+	m.ForEachZone(func(z *Zone) bool {
+		err = z.PruneWireguardConfig(ring)
+		return err != nil
+	})
+
+	return err
+}
+
+// WriteWireguardKeys rewrites all wgN.{key,pub} files
+func (m *Zones) WriteWireguardKeys(ring int) error {
+	var err error
+
+	m.ForEachZone(func(z *Zone) bool {
+		err = z.WriteWireguardKeys(ring)
+		return err != nil
+	})
+
+	return err
+}
+
+// SyncWireguardConfig updates all wgN.conf files for the specified
+// ring
+func (m *Zones) SyncWireguardConfig(ring int) error {
+	err := m.PruneWireguardConfig(ring)
+	if err != nil {
+		return err
+	}
+
+}

pkg/zones/zones.go

@@ -10,16 +10,6 @@ import (
 	"darvaza.org/resolver"
 )
 
-var (
-	_ MachineIterator = (*Zone)(nil)
-	_ MachineIterator = (*Zones)(nil)
-)
-
-// A MachineIterator is a set of Machines we can iterate on
-type MachineIterator interface {
-	ForEachMachine(func(*Machine) bool)
-}
-
 // Zone represents one zone in a cluster
 type Zone struct {
 	zones *Zones