WIP

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

cmd/jpictl/dns.go

@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"os"
-	"time"
 
 	"github.com/spf13/cobra"
 
@@ -11,13 +10,7 @@ import (
 	"git.jpi.io/amery/jpictl/pkg/dns"
 )
 
-const (
-	// DNSSyncTimeout specifies how long are we willing to wait for a DNS
-	// synchronization
-	DNSSyncTimeout = 10 * time.Second
-)
-
-func newDNSManager(m *cluster.Cluster, provider dns.Provider) (*dns.Manager, error) {
+func newDNSManager(m *cluster.Cluster) (*dns.Manager, error) {
 	domain := m.Domain
 	if m.Name != "" {
 		domain = m.Name + "." + domain
@@ -28,50 +21,22 @@ func newDNSManager(m *cluster.Cluster, provider dns.Provider) (*dns.Manager, err
 		return nil, err
 	}
 
-	if provider != nil {
-		// set provider only  if specified
-		err = dns.WithProvider(provider)(mgr)
-		if err != nil {
-			return nil, err
-		}
-	}
+	m.ForEachZone(func(z *cluster.Zone) bool {
+		z.ForEachMachine(func(p *cluster.Machine) bool {
+			err = mgr.AddHost(context.TODO(), z.Name, p.ID, true, p.PublicAddresses...)
+			return err != nil
+		})
 
-	if err := populateDNSManager(mgr, m); err != nil {
+		return err != nil
+	})
+
+	if err != nil {
 		return nil, err
 	}
 
 	return mgr, nil
 }
 
-func populateDNSManager(mgr *dns.Manager, m *cluster.Cluster) error {
-	var err error
-
-	ctx := context.TODO()
-
-	m.ForEachZone(func(z *cluster.Zone) bool {
-		z.ForEachMachine(func(p *cluster.Machine) bool {
-			err = mgr.AddHost(ctx, z.Name, p.ID, true, p.PublicAddresses...)
-			return err != nil
-		})
-
-		return err != nil
-	})
-	if err != nil {
-		return err
-	}
-
-	m.ForEachRegion(func(r *cluster.Region) bool {
-		r.ForEachZone(func(z *cluster.Zone) bool {
-			err = mgr.AddRegion(ctx, r.Name, z.Name)
-			return err != nil
-		})
-
-		return err != nil
-	})
-
-	return err
-}
-
 // Command
 var dnsCmd = &cobra.Command{
 	Use: "dns",
@@ -79,7 +44,6 @@ var dnsCmd = &cobra.Command{
 
 var dnsWriteCmd = &cobra.Command{
 	Use:    "write",
-	Short:  "dns write generates public DNS records",
 	PreRun: setVerbosity,
 	RunE: func(_ *cobra.Command, _ []string) error {
 		m, err := cfg.LoadZones(true)
@@ -87,7 +51,7 @@ var dnsWriteCmd = &cobra.Command{
 			return err
 		}
 
-		mgr, err := newDNSManager(m, nil)
+		mgr, err := newDNSManager(m)
 		if err != nil {
 			return err
 		}
@@ -97,36 +61,8 @@ var dnsWriteCmd = &cobra.Command{
 	},
 }
 
-var dnsSyncCmd = &cobra.Command{
-	Use:    "sync",
-	Short:  "dns sync updates public DNS records",
-	PreRun: setVerbosity,
-	RunE: func(_ *cobra.Command, _ []string) error {
-		cred, err := dns.DefaultDNSProvider()
-		if err != nil {
-			return err
-		}
-
-		m, err := cfg.LoadZones(true)
-		if err != nil {
-			return err
-		}
-
-		mgr, err := newDNSManager(m, cred)
-		if err != nil {
-			return err
-		}
-
-		ctx, cancel := context.WithTimeout(context.Background(), DNSSyncTimeout)
-		defer cancel()
-
-		return mgr.Sync(ctx)
-	},
-}
-
 func init() {
 	rootCmd.AddCommand(dnsCmd)
 
 	dnsCmd.AddCommand(dnsWriteCmd)
-	dnsCmd.AddCommand(dnsSyncCmd)
 }

cmd/jpictl/main.go

@@ -37,5 +37,5 @@ func setVerbosity(_ *cobra.Command, _ []string) {
 	if desired > 6 {
 		desired = 6
 	}
-	log = zerolog.New(nil, slog.LogLevel(desired))
+	log = log.WithLevel(slog.LogLevel(desired))
 }

go.mod

@@ -2,6 +2,8 @@ module git.jpi.io/amery/jpictl
 
 go 1.19
 
+replace asciigoat.org/ini => ../../../asciigoat.org/ini
+
 require (
 	asciigoat.org/ini v0.2.5
 	darvaza.org/core v0.9.8
@@ -17,7 +19,6 @@ require (
 	github.com/spf13/cobra v1.7.0
 	golang.org/x/crypto v0.12.0
 	golang.org/x/net v0.14.0
-	gopkg.in/gcfg.v1 v1.2.3
 	gopkg.in/yaml.v3 v3.0.1
 )
 
@@ -45,5 +46,4 @@ require (
 	golang.org/x/sys v0.12.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	golang.org/x/tools v0.12.0 // indirect
-	gopkg.in/warnings.v0 v0.1.2 // indirect
 )

go.sum

@@ -1,7 +1,5 @@
 asciigoat.org/core v0.3.9 h1:hgDDz4ecm3ZvehX++m8A/IzAt+B5oDPiRtxatzfUHPQ=
 asciigoat.org/core v0.3.9/go.mod h1:CAaHwyw8MpAq4a1MYtN2dxJrsK+hmIdW50OndaQZYPI=
-asciigoat.org/ini v0.2.5 h1:4gRIp9rU+XQt8+HMqZO5R7GavMv9Yl2+N+je6djDIAE=
-asciigoat.org/ini v0.2.5/go.mod h1:gmXzJ9XFqf1NLk5nQkj04USQ4tMtdRJHNQX6vp3DzjU=
 darvaza.org/core v0.9.8 h1:luLxgfUc2pzuusYPo/Z/dC/qr9XZPKpSQw8/kS7zNUM=
 darvaza.org/core v0.9.8/go.mod h1:Dbme64naxeshQfxcVJX9ZT7AiGyIY8kldfuELVtf8mw=
 darvaza.org/resolver v0.5.4 h1:dlSBNV14yYsp7Kg7ipwYOMNsLbrpeXa8Z0HBTa0Ryxs=
@@ -103,10 +101,6 @@ golang.org/x/tools v0.12.0 h1:YW6HUoUmYBpwSgyaGaZq1fHjrBjX1rlpZ54T6mu2kss=
 golang.org/x/tools v0.12.0/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/gcfg.v1 v1.2.3 h1:m8OOJ4ccYHnx2f4gQwpno8nAX5OGOh7RLaaz0pj3Ogs=
-gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
-gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
-gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pkg/cluster/ceph_scan.go

@@ -71,7 +71,7 @@ func newCephScanTODO(cfg *ceph.Config) *cephScanTODO {
 	return todo
 }
 
-func (m *Cluster) scanCephMonitors(opts *ScanOptions) error {
+func (m *Cluster) scanCephMonitors(_ *ScanOptions) error {
 	cfg, err := m.GetCephConfig()
 	switch {
 	case os.IsNotExist(err):
@@ -94,10 +94,6 @@ func (m *Cluster) scanCephMonitors(opts *ScanOptions) error {
 		todo.LogMissing(m.log)
 	}
 
-	return m.initCephMonitors(opts)
-}
-
-func (m *Cluster) initCephMonitors(_ *ScanOptions) error {
 	// make sure every zone has one
 	m.ForEachZone(func(z *Zone) bool {
 		_ = z.GetCephMonitors()

pkg/cluster/cluster.go

@@ -27,8 +27,7 @@ type Cluster struct {
 	Domain  string `json:"domain,omitempty" yaml:"domain,omitempty"`
 
 	CephFSID uuid.UUID `json:"ceph_fsid,omitempty" yaml:"ceph_fsid,omitempty"`
-	Regions  []Region  `json:",omitempty"          yaml:",omitempty"`
-	Zones    []*Zone   `json:",omitempty"          yaml:",omitempty"`
+	Zones    []*Zone   `json:"zones,omitempty"     yaml:"zones,omitempty"`
 }
 
 // revive:enable:line-length-limit

pkg/cluster/cluster_import.go

@@ -14,8 +14,6 @@ func (m *Cluster) init(opts *ScanOptions) error {
 		m.scanZoneIDs,
 		m.scanSort,
 		m.scanGateways,
-		m.initCephMonitors,
-		m.initRegions,
 	} {
 		if err := fn(opts); err != nil {
 			return err

pkg/cluster/regions.go

@@ -1,130 +0,0 @@
-package cluster
-
-var (
-	_ MachineIterator = (*Region)(nil)
-	_ ZoneIterator    = (*Region)(nil)
-)
-
-// Region represents a group of zones geographically related
-type Region struct {
-	m     *Cluster
-	zones []*Zone
-
-	Name    string
-	Regions []string `json:",omitempty" yaml:",omitempty"`
-}
-
-// ForEachRegion calls a function for each Region of the cluster
-// until instructed to terminate the loop
-func (m *Cluster) ForEachRegion(fn func(r *Region) bool) {
-	for i := range m.Regions {
-		r := &m.Regions[i]
-		if fn(r) {
-			return
-		}
-	}
-}
-
-// ForEachMachine calls a function for each Machine in the region
-// until instructed to terminate the loop
-func (r *Region) ForEachMachine(fn func(*Machine) bool) {
-	r.ForEachZone(func(z *Zone) bool {
-		var term bool
-
-		z.ForEachMachine(func(p *Machine) bool {
-			term = fn(p)
-			return term
-		})
-
-		return term
-	})
-}
-
-// ForEachZone calls a function for each Zone in the region
-// until instructed to terminate the loop
-func (r *Region) ForEachZone(fn func(*Zone) bool) {
-	for _, p := range r.zones {
-		if fn(p) {
-			// terminate
-			return
-		}
-	}
-}
-
-func (m *Cluster) initRegions(_ *ScanOptions) error {
-	regions := make(map[string][]*Zone)
-
-	// first regions defined by zones
-	m.ForEachZone(func(z *Zone) bool {
-		for _, region := range z.Regions {
-			regions[region] = append(regions[region], z)
-		}
-
-		return false
-	})
-
-	// bind first level regions and their zones
-	for name, zones := range regions {
-		m.syncRegions(name, zones...)
-	}
-
-	// and combine zones to produce larger regions
-	for i := range m.Regions {
-		r := &m.Regions[i]
-		m.finishRegion(r)
-	}
-
-	return nil
-}
-
-func (m *Cluster) syncRegions(name string, zones ...*Zone) {
-	for _, r := range m.Regions {
-		if r.Name == name {
-			// found
-			r.m = m
-			r.zones = zones
-			return
-		}
-	}
-
-	// new
-	m.Regions = append(m.Regions, Region{
-		m:     m,
-		zones: zones,
-		Name:  name,
-	})
-}
-
-func (m *Cluster) finishRegion(r *Region) {
-	if r.m != nil {
-		// ready
-		return
-	}
-
-	r.m = m
-	sub := []string{}
-	for _, name := range r.Regions {
-		r2, ok := m.getRegion(name)
-		if !ok {
-			m.warn(nil).WithField("region", name).Print("unknown region")
-			continue
-		}
-
-		sub = append(sub, r2.Name)
-		r.zones = append(r.zones, r2.zones...)
-	}
-	r.Regions = sub
-}
-
-func (m *Cluster) getRegion(name string) (*Region, bool) {
-	for i := range m.Regions {
-		r := &m.Regions[i]
-
-		if name == r.Name {
-			m.finishRegion(r)
-			return r, true
-		}
-	}
-
-	return nil, false
-}

pkg/cluster/zones.go

@@ -19,9 +19,8 @@ type Zone struct {
 	zones  *Cluster
 	logger `json:"-" yaml:"-"`
 
-	ID      int
-	Name    string
-	Regions []string `json:",omitempty" yaml:",omitempty"`
+	ID   int
+	Name string
 
 	Machines
 }

pkg/dns/dns.go

@@ -1,38 +1,34 @@
 // Package dns manages DNS entries for the cluster
 package dns
 
-import (
-	"fmt"
-	"net/netip"
-)
+import "net/netip"
 
-// Zone represents a set of hosts with high affinity
+// // A Config defines a Region
+//
+//	type Config struct {
+//		// Name is the identifier of this Region
+//		Name string
+//		// Regions are a list of (sub)regions that belong to this Region
+//		Regions []string
+//		// Zones are a list of Zones that directly belong to this Region
+//		Zones []string
+//	}
+//
+//	type Region struct {
+//		Name string
+//	}
+
+// Zone represents a set of machines with high affinity
 type Zone struct {
 	Name string
 
-	Hosts map[int]*Host
+	Machines map[int]*Machine
 }
 
-func (z *Zone) String() string {
-	if z == nil {
-		return "undetermined"
-	}
-	return z.Name
-}
+// Machine represents a member of the cluster
+type Machine struct {
+	ID int
 
-// Host represents a member of the cluster
-type Host struct {
-	zone *Zone
-
-	ID     int
 	Active bool
 	Addrs  []netip.Addr
 }
-
-func (p *Host) String() string {
-	if p == nil {
-		return "undetermined"
-	}
-
-	return fmt.Sprintf("%s-%v", p.zone, p.ID)
-}

pkg/dns/host.go

@@ -0,0 +1,31 @@
+package dns
+
+import (
+	"context"
+	"net/netip"
+)
+
+// AddHost registers a machine
+func (*Manager) AddHost(_ context.Context, _ string, _ int, _ bool, _ ...netip.Addr) error {
+	//	if zone == "" || id <= 0 {
+	//		return fs.ErrInvalid
+	//	}
+	//
+	//	z, ok := mgr.zones[zone]
+	//	if !ok {
+	//		z = &Zone{
+	//			Name:     zone,
+	//			Machines: make(map[int]*Machine),
+	//		}
+	//
+	//		mgr.zones[zone] = z
+	//	}
+	//
+	//	z.Machines[id] = &Machine{
+	//		ID:     id,
+	//		Active: active,
+	//		Addrs:  addrs,
+	//	}
+	//
+	return nil
+}

pkg/dns/manager.go

@@ -1,11 +1,8 @@
 package dns
 
 import (
-	"context"
-	"errors"
-	"io/fs"
-	"net/netip"
 	"strings"
+	"sync"
 
 	"darvaza.org/core"
 	"darvaza.org/slog"
@@ -15,10 +12,11 @@ import (
 
 // Manager is a DNS Manager instance
 type Manager struct {
-	domain  string
-	suffix  string
-	zones   map[string]*Zone
-	regions map[string][]string
+	mu sync.Mutex
+
+	domain string
+	suffix string
+	zones  map[string]*Zone
 
 	p Provider
 	l slog.Logger
@@ -29,27 +27,31 @@ type ManagerOption func(*Manager) error
 
 func newErrorManagerOption(err error, hint string) ManagerOption {
 	return func(*Manager) error {
-		return core.Wrap(err, hint)
+		if hint != "" {
+			err = core.Wrap(err, hint)
+		}
+		return err
 	}
 }
 
-// WithProvider attaches a libdns Provider to the Manager
-func WithProvider(p Provider) ManagerOption {
-	var err error
-
-	if p == nil {
-		p, err = DefaultDNSProvider()
-	}
-
-	if err != nil {
-		return newErrorManagerOption(err, "WithProvider")
-	}
-
-	return func(mgr *Manager) error {
-		mgr.p = p
-		return nil
-	}
-}
+// // WithProvider attaches a libdns Provider to the Manager
+//
+//	func WithProvider(p Provider) ManagerOption {
+//		var err error
+//
+//		if p == nil {
+//			p, err = DefaultDNSProvider()
+//		}
+//
+//		if err != nil {
+//			return newErrorManagerOption(err, "WithProvider")
+//		}
+//
+//		return func(mgr *Manager) error {
+//			mgr.p = p
+//			return nil
+//		}
+//	}
 
 // WithLogger attaches a logger to the Manager
 func WithLogger(log slog.Logger) ManagerOption {
@@ -63,22 +65,28 @@ func WithLogger(log slog.Logger) ManagerOption {
 	}
 }
 
-func (mgr *Manager) setDefaults() error {
-	var opts []ManagerOption
-
-	if mgr.l == nil {
-		opts = append(opts, WithLogger(nil))
-	}
-
-	if mgr.domain == "" || mgr.suffix == "" {
-		return errors.New("domain not specified")
-	}
-
-	for _, opt := range opts {
-		if err := opt(mgr); err != nil {
-			return err
-		}
-	}
+func (*Manager) setDefaults() error {
+	// 	var opts []ManagerOption
+	//
+	// 	if mgr.p == nil {
+	// 		opts = append(opts, WithProvider(nil))
+	// 	}
+	//
+	// 	if mgr.l == nil {
+	// 		opts = append(opts, WithLogger(nil))
+	// 	}
+	//
+	// 	if mgr.domain == "" || mgr.suffix == "" {
+	// 		return errors.New("domain not specified")
+	// 	}
+	//
+	// 	mgr.zones = make(map[string]*Zone)
+	//
+	// 	for _, opt := range opts {
+	// 		if err := opt(mgr); err != nil {
+	// 			return err
+	// 		}
+	// 	}
 	return nil
 }
 
@@ -103,10 +111,7 @@ func WithDomain(domain string) ManagerOption {
 
 // NewManager creates a DNS manager with the
 func NewManager(opts ...ManagerOption) (*Manager, error) {
-	mgr := &Manager{
-		zones:   make(map[string]*Zone),
-		regions: make(map[string][]string),
-	}
+	mgr := new(Manager)
 
 	for _, opt := range opts {
 		if err := opt(mgr); err != nil {
@@ -119,55 +124,3 @@ func NewManager(opts ...ManagerOption) (*Manager, error) {
 	}
 	return mgr, nil
 }
-
-// AddHost registers a host
-func (mgr *Manager) AddHost(_ context.Context, zone string, id int,
-	active bool, addrs ...netip.Addr) error {
-	//
-	if zone == "" || id <= 0 {
-		return fs.ErrInvalid
-	}
-
-	z, ok := mgr.zones[zone]
-	if !ok {
-		z = &Zone{
-			Name:  zone,
-			Hosts: make(map[int]*Host),
-		}
-
-		mgr.zones[zone] = z
-	}
-
-	p := &Host{
-		zone:   z,
-		ID:     id,
-		Active: active,
-		Addrs:  SortAddrSlice(addrs),
-	}
-	z.Hosts[id] = p
-
-	if log, ok := mgr.l.Debug().WithEnabled(); ok {
-		log.WithField("subsystem", "dns").
-			WithField("zone", zone).
-			WithField("host", p.String()).
-			WithField("active", active).
-			Print()
-	}
-
-	return nil
-}
-
-// AddRegion specifies a new region and the zones it contains
-func (mgr *Manager) AddRegion(_ context.Context, region string, zones ...string) error {
-	mgr.regions[region] = append(mgr.regions[region], zones...)
-
-	if log, ok := mgr.l.Debug().WithEnabled(); ok {
-		for _, zoneName := range zones {
-			log.WithField("subsystem", "dns").
-				WithField("region", region).
-				WithField("zone", zoneName).Print()
-		}
-	}
-
-	return nil
-}

pkg/dns/provider.go

@@ -18,8 +18,6 @@ const (
 type Provider interface {
 	libdns.RecordGetter
 	libdns.RecordDeleter
-	libdns.RecordSetter
-	libdns.RecordAppender
 }
 
 // DefaultDNSProvider returns a cloudflare DNS provider

pkg/dns/record.go

@@ -1,9 +1,6 @@
 package dns
 
 import (
-	"bytes"
-	"fmt"
-	"io"
 	"net/netip"
 	"sort"
 	"time"
@@ -12,58 +9,6 @@ import (
 	"github.com/libdns/libdns"
 )
 
-func (mgr *Manager) fqdn(name string) string {
-	return fmt.Sprintf("%s.%s.", name, mgr.domain)
-}
-
-// SortAddrSlice sorts a slice of [netip.Addr]
-func SortAddrSlice(s []netip.Addr) []netip.Addr {
-	sort.Slice(s, func(i, j int) bool {
-		return s[i].Less(s[j])
-	})
-	return s
-}
-
-// SortAddrRecords sorts a slice of [AddrRecord]
-// by Name and Address
-func SortAddrRecords(s []AddrRecord) []AddrRecord {
-	sort.Slice(s, func(i, j int) bool {
-		return s[i].Name < s[j].Name
-	})
-
-	for _, p := range s {
-		SortAddrSlice(p.Addr)
-	}
-
-	return s
-}
-
-// SortRegions sorts regions. first by length those 3-character
-// or shorter, and then by length. It's mostly aimed at
-// supporting ISO-3166 order
-func SortRegions(regions []string) []string {
-	sort.Slice(regions, func(i, j int) bool {
-		r1, r2 := regions[i], regions[j]
-
-		switch {
-		case len(r1) < 4:
-			switch {
-			case len(r1) < len(r2):
-				return true
-			case len(r1) > len(r2):
-				return false
-			default:
-				return r1 < r2
-			}
-		case len(r2) < 4:
-			return false
-		default:
-			return r1 < r2
-		}
-	})
-	return regions
-}
-
 // AddrRecord represents an A or AAAA record
 type AddrRecord struct {
 	Name string
@@ -72,7 +17,9 @@ type AddrRecord struct {
 
 // Sort sorts the addresses of the record
 func (rr *AddrRecord) Sort() {
-	SortAddrSlice(rr.Addr)
+	sort.Slice(rr.Addr, func(i, j int) bool {
+		return rr.Addr[i].Less(rr.Addr[j])
+	})
 }
 
 // Export converts the record into libdns.Record
@@ -89,125 +36,3 @@ func (rr *AddrRecord) Export() []libdns.Record {
 
 	return out
 }
-
-// WriteTo writes the record in BIND notation
-func (rr *AddrRecord) WriteTo(w io.Writer) (int64, error) {
-	var total int
-	for _, addr := range rr.Addr {
-		n, err := fmt.Fprint(w,
-			rr.Name, "\t",
-			1, "\t",
-			core.IIf(addr.Is6(), "AAAA", "A"), "\t",
-			addr.String(), "\n")
-
-		switch {
-		case err != nil:
-			return 0, err
-		case n > 0:
-			total += n
-		}
-	}
-
-	return int64(total), nil
-}
-
-// String converts the record into BIND entries
-func (rr *AddrRecord) String() string {
-	var buf bytes.Buffer
-	_, _ = rr.WriteTo(&buf)
-	return buf.String()
-}
-
-func (mgr *Manager) genRegionsSorted() []string {
-	regions := make([]string, 0, len(mgr.regions))
-	for name := range mgr.regions {
-		regions = append(regions, name)
-	}
-
-	return SortRegions(regions)
-}
-
-func (mgr *Manager) genAllAddrRecords() []AddrRecord {
-	var out []AddrRecord
-
-	cache := make(map[string][]netip.Addr)
-
-	// zones
-	for _, z := range mgr.zones {
-		// hosts
-		s := mgr.genZoneHostRecords(z)
-		out = append(out, s...)
-
-		// zone alias
-		addrs := mgr.genZoneAddresses(z)
-		name := z.Name
-
-		out = append(out, AddrRecord{
-			Name: name + mgr.suffix,
-			Addr: addrs,
-		})
-
-		// and cache for regions
-		cache[name] = addrs
-	}
-
-	for _, name := range mgr.genRegionsSorted() {
-		var addrs []netip.Addr
-
-		for _, z := range mgr.regions[name] {
-			addrs = append(addrs, cache[z]...)
-		}
-
-		rec := AddrRecord{
-			Name: name + mgr.suffix,
-			Addr: addrs,
-		}
-		rec.Sort()
-
-		out = append(out, rec)
-	}
-
-	SortAddrRecords(out)
-	return out
-}
-
-func (*Manager) genZoneAddresses(z *Zone) []netip.Addr {
-	var out []netip.Addr
-
-	for _, p := range z.Hosts {
-		if p.Active {
-			out = append(out, p.Addrs...)
-		}
-	}
-
-	SortAddrSlice(out)
-	return out
-}
-
-func (mgr *Manager) genZoneHostRecords(z *Zone) []AddrRecord {
-	out := make([]AddrRecord, 0, len(z.Hosts))
-
-	for _, p := range z.Hosts {
-		rec := AddrRecord{
-			Name: p.String() + mgr.suffix,
-			Addr: p.Addrs,
-		}
-		out = append(out, rec)
-	}
-
-	SortAddrRecords(out)
-	return out
-}
-
-func (mgr *Manager) genRegionAddressesCached(name string,
-	zones map[string][]netip.Addr) []netip.Addr {
-	//
-	var addrs []netip.Addr
-
-	for _, zoneName := range mgr.regions[name] {
-		addrs = append(addrs, zones[zoneName]...)
-	}
-
-	SortAddrSlice(addrs)
-	return addrs
-}

pkg/dns/sync.go

@@ -1,347 +0,0 @@
-package dns
-
-import (
-	"context"
-	"errors"
-	"net/netip"
-	"sort"
-	"strings"
-	"time"
-
-	"darvaza.org/core"
-	"darvaza.org/slog"
-	"github.com/libdns/libdns"
-)
-
-// SyncAddrRecord is similar to AddrRecord but include libdns.Record details
-// fetched from the Provider
-type SyncAddrRecord struct {
-	Name  string
-	Addrs []SyncAddr
-}
-
-// SyncAddr extends netip.Addr with ID and TTL fetched from the Provider
-type SyncAddr struct {
-	ID   string
-	Addr netip.Addr
-	TTL  time.Duration
-}
-
-// Export assembles a libdns.Record
-func (rec *SyncAddr) Export(name string) libdns.Record {
-	return libdns.Record{
-		ID:    rec.ID,
-		Name:  name,
-		Type:  core.IIf(rec.Addr.Is6(), "AAAA", "A"),
-		TTL:   time.Second,
-		Value: rec.Addr.String(),
-	}
-}
-
-// SortSyncAddrSlice sorts a slice of [SyncAddr] by its address
-func SortSyncAddrSlice(s []SyncAddr) []SyncAddr {
-	sort.Slice(s, func(i, j int) bool {
-		a1 := s[i].Addr
-		a2 := s[j].Addr
-		return a1.Less(a2)
-	})
-	return s
-}
-
-// GetRecords pulls all the address records on DNS for our domain
-func (mgr *Manager) GetRecords(ctx context.Context) ([]SyncAddrRecord, error) {
-	if mgr.p == nil {
-		return nil, errors.New("dns provider not specified")
-	}
-
-	recs, err := mgr.p.GetRecords(ctx, mgr.domain)
-	if err != nil {
-		return nil, err
-	}
-
-	return mgr.filteredRecords(recs)
-}
-
-// AsSyncAddr converts a A or AAAA [libdns.Record] into a [SyncAddr]
-func (mgr *Manager) AsSyncAddr(rr libdns.Record) (SyncAddr, bool, error) {
-	var out SyncAddr
-	var addr netip.Addr
-
-	// skip non-address types
-	if rr.Type != "A" && rr.Type != "AAAA" {
-		return out, false, nil
-	}
-
-	// skip entries not containing our suffix
-	if mgr.suffix != "" {
-		if !strings.HasSuffix(rr.Name, mgr.suffix) {
-			return out, false, nil
-		}
-	}
-
-	err := addr.UnmarshalText([]byte(rr.Value))
-	if err != nil {
-		// invalid address on A or AAAA record
-		return out, false, err
-	}
-
-	out = SyncAddr{
-		ID:   rr.ID,
-		TTL:  rr.TTL,
-		Addr: addr,
-	}
-
-	return out, true, nil
-}
-
-func (mgr *Manager) filteredRecords(recs []libdns.Record) ([]SyncAddrRecord, error) {
-	// filter and convert
-	cache := make(map[string][]SyncAddr)
-	for _, rr := range recs {
-		addr, ok, err := mgr.AsSyncAddr(rr)
-		switch {
-		case err != nil:
-			// skip invalid addresses
-			mgr.l.Error().
-				WithField("subsystem", "dns").
-				WithField(slog.ErrorFieldName, err).
-				WithField("name", rr.Name).
-				WithField("type", rr.Type).
-				WithField("addr", rr.Value).
-				Print()
-		case ok:
-			// store
-			cache[rr.Name] = append(cache[rr.Name], addr)
-		}
-	}
-
-	// prepare records
-	out := make([]SyncAddrRecord, len(cache))
-	names := make([]string, 0, len(cache))
-	for name := range cache {
-		names = append(names, name)
-	}
-	sort.Strings(names)
-
-	for i, name := range names {
-		addrs := cache[name]
-
-		out[i] = SyncAddrRecord{
-			Name:  name,
-			Addrs: SortSyncAddrSlice(addrs),
-		}
-	}
-
-	return out, nil
-}
-
-// Sync updates all the address records on DNS for our domain
-func (mgr *Manager) Sync(ctx context.Context) error {
-	current, err := mgr.GetRecords(ctx)
-	if err != nil {
-		return core.Wrap(err, "GetRecords")
-	}
-
-	goal := mgr.genAllAddrRecords()
-	for _, p := range makeSyncMap(current, goal) {
-		err := mgr.doSync(ctx, p.Name, p.Before, p.After)
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (mgr *Manager) doSync(ctx context.Context, name string,
-	before []SyncAddr, after []netip.Addr) error {
-	//
-	var err error
-
-	for _, a := range after {
-		before, err = mgr.doSyncUpdateOrInsert(ctx, name, a, before)
-		if err != nil {
-			return err
-		}
-	}
-
-	for _, b := range before {
-		err = mgr.doSyncRemove(ctx, name, b)
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (mgr *Manager) doSyncUpdateOrInsert(ctx context.Context, name string,
-	addr netip.Addr, addrs []SyncAddr) ([]SyncAddr, error) {
-	//
-	var err error
-
-	i, ok := findSyncAddrSorted(addr, addrs)
-	if ok {
-		rec := addrs[i]
-
-		addrs = append(addrs[:i], addrs[i+1:]...)
-		err = mgr.doSyncUpdate(ctx, name, addr, rec)
-	} else {
-		err = mgr.doSyncInsert(ctx, name, addr)
-	}
-
-	return addrs, err
-}
-
-func (mgr *Manager) doSyncUpdate(ctx context.Context, name string,
-	addr netip.Addr, rec SyncAddr) error {
-	//
-	var log slog.Logger
-	var msg string
-	var err error
-
-	if rec.TTL != time.Second {
-		// amend TTL
-
-		// TODO: batch updates
-		_, err = mgr.p.SetRecords(ctx, mgr.domain, []libdns.Record{
-			rec.Export(name),
-		})
-
-		if err == nil {
-			log = mgr.l.Info()
-			msg = "Updated"
-		} else {
-			log = mgr.l.Error().
-				WithField(slog.ErrorFieldName, err)
-			msg = "Failed"
-		}
-	} else {
-		log = mgr.l.Info()
-		msg = "OK"
-	}
-
-	log.
-		WithField("subsystem", "dns").
-		WithField("name", name).
-		WithField("addr", addr).
-		Print(msg)
-
-	return err
-}
-
-func (mgr *Manager) doSyncInsert(ctx context.Context, name string,
-	addr netip.Addr) error {
-	//
-	var log slog.Logger
-	var msg string
-
-	rec := libdns.Record{
-		Name:  name,
-		Type:  core.IIf(addr.Is6(), "AAAA", "A"),
-		TTL:   time.Second,
-		Value: addr.String(),
-	}
-
-	_, err := mgr.p.AppendRecords(ctx, mgr.domain, []libdns.Record{
-		rec,
-	})
-
-	if err != nil {
-		log = mgr.l.Error().
-			WithField(slog.ErrorFieldName, err)
-		msg = "Failed to Add"
-	} else {
-		log = mgr.l.Info()
-		msg = "Added"
-	}
-
-	log.
-		WithField("subsystem", "dns").
-		WithField("name", name).
-		WithField("addr", addr).
-		Print(msg)
-	return err
-}
-
-func (mgr *Manager) doSyncRemove(ctx context.Context, name string,
-	rec SyncAddr) error {
-	//
-	var log slog.Logger
-	var msg string
-
-	// TODO: batch deletes
-	_, err := mgr.p.DeleteRecords(ctx, mgr.domain, []libdns.Record{
-		rec.Export(name),
-	})
-
-	if err != nil {
-		log = mgr.l.Error().
-			WithField(slog.ErrorFieldName, err)
-		msg = "Failed to Delete"
-	} else {
-		log = mgr.l.Warn()
-		msg = "Deleted"
-	}
-
-	log.
-		WithField("subsystem", "dns").
-		WithField("name", name).
-		WithField("addr", rec.Addr).
-		Print(msg)
-	return err
-}
-
-func findSyncAddrSorted(target netip.Addr, addrs []SyncAddr) (int, bool) {
-	for i, a := range addrs {
-		switch target.Compare(a.Addr) {
-		case 0:
-			// match
-			return i, true
-		case -1:
-			// miss
-			return -1, false
-		default:
-			// next
-		}
-	}
-
-	return -1, false
-}
-
-type syncMapEntry struct {
-	Name   string
-	Before []SyncAddr
-	After  []netip.Addr
-}
-
-func makeSyncMap(current []SyncAddrRecord,
-	goal []AddrRecord) map[string]syncMapEntry {
-	//
-	data := make(map[string]syncMapEntry)
-
-	for _, cur := range current {
-		me, ok := data[cur.Name]
-		if !ok {
-			me = syncMapEntry{
-				Name: cur.Name,
-			}
-		}
-
-		me.Before = append(me.Before, cur.Addrs...)
-		data[cur.Name] = me
-	}
-
-	for _, rr := range goal {
-		me, ok := data[rr.Name]
-		if !ok {
-			me = syncMapEntry{
-				Name: rr.Name,
-			}
-		}
-		me.After = append(me.After, rr.Addr...)
-		data[rr.Name] = me
-	}
-
-	return data
-}

pkg/dns/write.go

@@ -2,61 +2,179 @@ package dns
 
 import (
 	"bytes"
-	"fmt"
 	"io"
-	"net/netip"
 )
 
 // WriteTo writes the DNS data for the cluster
-func (mgr *Manager) WriteTo(w io.Writer) (int64, error) {
+func (*Manager) WriteTo(w io.Writer) (int64, error) {
 	var buf bytes.Buffer
-
-	cache := make(map[string][]netip.Addr)
-
-	// zones
-	for _, z := range mgr.zones {
-		mgr.writeZoneHosts(&buf, z)
-
-		// zone alias
-		addrs := mgr.genZoneAddresses(z)
-		zoneName := z.Name
-
-		rr := AddrRecord{
-			Name: mgr.fqdn(zoneName + mgr.suffix),
-			Addr: addrs,
-		}
-		_, _ = rr.WriteTo(&buf)
-
-		// and cache for regions
-		cache[zoneName] = addrs
-	}
-
-	// regions, sorted
-	for _, name := range mgr.genRegionsSorted() {
-		addrs := mgr.genRegionAddressesCached(name, cache)
-
-		mgr.writeRegionAddresses(&buf, name, addrs)
-	}
+	//
+	// 	var zoneNames sort.StringSlice
+	//
+	// 	// sort zones
+	// 	for name := range mgr.zones {
+	// 		zoneNames = append(zoneNames, name)
+	// 	}
+	// 	sort.Sort(zoneNames)
+	//
+	// 	// records
+	// 	zones := make(map[string][]libdns.Record)
+	//
+	// 	for _, name := range zoneNames {
+	// 		z := mgr.zones[name]
+	//
+	// 		if buf.Len() > 0 {
+	// 			_, _ = buf.WriteRune('\n')
+	// 		}
+	//
+	// 		// servers
+	// 		err := mgr.writeZoneMachinesToBuffer(&buf, name, z)
+	// 		if err != nil {
+	// 			return 0, err
+	// 		}
+	//
+	// 		// zone alias
+	// 		_, _ = fmt.Fprintf(&buf, "; %s\n", name)
+	// 		records := mgr.genAliasRecords(name, true, z)
+	// 		mgr.Sort(records)
+	// 		mgr.writeRecordsToBuffer(&buf, "", records...)
+	//
+	// 		zones[name] = records
+	// 	}
+	//
+	// 	mgr.writeRegionToBuffer(&buf, zones, "uk", "ssd-lon")
+	// 	mgr.writeRegionToBuffer(&buf, zones, "nl", "ssd-ams")
+	// 	mgr.writeRegionToBuffer(&buf, zones, "de", "htz-fsn")
+	// 	mgr.writeRegionToBuffer(&buf, zones, "eu", "ssd-ams", "htz-fsn")
+	// 	mgr.writeRegionToBuffer(&buf, zones, "europe", "ssd-ams", "ssd-lon", "htz-fsn")
+	// 	mgr.writeRegionToBuffer(&buf, zones, "earth", "ssd-ams", "ssd-lon", "htz-fsn")
 
 	return buf.WriteTo(w)
 }
 
-func (mgr *Manager) writeZoneHosts(w io.Writer, z *Zone) {
-	_, _ = fmt.Fprintf(w, ";\n; %s\n;\n", z.Name)
+// revive:disable:line-length-limit
 
-	for _, rr := range mgr.genZoneHostRecords(z) {
-		rr.Name = mgr.fqdn(rr.Name)
-		_, _ = rr.WriteTo(w)
-	}
-}
-
-func (mgr *Manager) writeRegionAddresses(w io.Writer, name string, addrs []netip.Addr) {
-	_, _ = fmt.Fprintf(w, "; %s\n", name)
-
-	rr := AddrRecord{
-		Name: mgr.fqdn(name + mgr.suffix),
-		Addr: addrs,
-	}
-
-	_, _ = rr.WriteTo(w)
-}
+// func (mgr *Manager) writeRecordsToBuffer(buf *bytes.Buffer, rename string, records ...libdns.Record) {
+// 	for _, rr := range records {
+// 		name := core.IIf(rename != "", rename, rr.Name)
+// 		fqdn := fmt.Sprintf("%s.%s.", name, mgr.domain)
+//
+// 		_, _ = fmt.Fprintf(buf, "%s\t%v\tIN\t%s\t%v\n",
+// 			fqdn, int(rr.TTL/time.Second), rr.Type, rr.Value)
+// 	}
+// }
+//
+// func (mgr *Manager) writeRegionToBuffer(buf *bytes.Buffer, cache map[string][]libdns.Record, name string, zones ...string) {
+// 	var alias string
+//
+// 	_, _ = fmt.Fprintf(buf, "\n; %s\n", name)
+//
+// 	switch {
+// 	case mgr.suffix == "":
+// 		// no suffix
+// 	case strings.HasSuffix(name, mgr.suffix):
+// 		// suffixed
+// 	default:
+// 		// unsuffixed
+// 		alias = name
+// 		name = name + mgr.suffix
+// 	}
+//
+// 	records := []libdns.Record{}
+// 	for _, zone := range zones {
+// 		records = append(records, cache[zone]...)
+// 	}
+// 	mgr.Sort(records)
+// 	mgr.writeRecordsToBuffer(buf, alias, records...)
+//
+// 	if alias != "" {
+// 		rr := libdns.Record{
+// 			Name:  alias,
+// 			TTL:   3600 * time.Second,
+// 			Type:  "CNAME",
+// 			Value: name + "." + mgr.domain + ".",
+// 		}
+//
+// 		mgr.writeRecordsToBuffer(buf, alias, rr)
+// 	}
+// }
+//
+// func (mgr *Manager) writeZoneMachinesToBuffer(buf *bytes.Buffer, zone_name string, z *Zone) error {
+// 	// title
+// 	_, _ = fmt.Fprintf(buf, ";\n; %s\n;\n", zone_name)
+//
+// 	// machine records
+// 	records := mgr.genMachineRecords(z)
+// 	mgr.writeRecordsToBuffer(buf, "", records...)
+//
+// 	return nil
+// }
+//
+// func (mgr *Manager) genMachineRecords(z *Zone) []libdns.Record {
+// 	var out []libdns.Record
+//
+// 	for _, p := range z.Machines {
+// 		pqdn := fmt.Sprintf("%s-%v%s", z.Name, p.ID, mgr.suffix)
+//
+// 		for _, addr := range p.Addrs {
+// 			out = append(out, libdns.Record{
+// 				Name:  pqdn,
+// 				Type:  core.IIf(addr.Is6(), "AAAA", "A"),
+// 				TTL:   time.Second,
+// 				Value: addr.String(),
+// 			})
+// 		}
+// 	}
+//
+// 	mgr.Sort(out)
+// 	return out
+// }
+//
+// func (mgr *Manager) genAliasRecords(name string, activeOnly bool, zones ...*Zone) []libdns.Record {
+// 	var out []libdns.Record
+//
+// 	fqdn := fmt.Sprintf("%s%s", name, mgr.suffix)
+// 	for _, z := range zones {
+// 		for _, p := range z.Machines {
+// 			if p.Active || !activeOnly {
+// 				for _, addr := range p.Addrs {
+// 					out = append(out, libdns.Record{
+// 						Name:  fqdn,
+// 						Type:  core.IIf(addr.Is6(), "AAAA", "A"),
+// 						TTL:   time.Second,
+// 						Value: addr.String(),
+// 					})
+// 				}
+// 			}
+// 		}
+// 	}
+//
+// 	return out
+// }
+//
+// func (mgr *Manager) Sort(records []libdns.Record) {
+// 	sort.SliceStable(records, func(i, j int) bool {
+// 		a := &records[i]
+// 		b := &records[j]
+// 		switch {
+// 		case a.Name < b.Name:
+// 			return true
+// 		case a.Name > b.Name:
+// 			return false
+// 		case a.Type < b.Type:
+// 			return true
+// 		case a.Type > b.Type:
+// 			return false
+// 		case a.Type == "A" || a.Type == "AAAA":
+// 			var aAddr, bAddr netip.Addr
+// 			aAddr.UnmarshalText([]byte(a.Value))
+// 			bAddr.UnmarshalText([]byte(b.Value))
+// 			return aAddr.Less(bAddr)
+// 		case a.Value < b.Value:
+// 			return true
+// 		default:
+// 			return false
+// 		}
+// 	})
+// }
+//

pkg/wireguard/config.go

@@ -2,7 +2,6 @@ package wireguard
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 	"io"
 	"net/netip"
@@ -10,8 +9,8 @@ import (
 	"strings"
 	"text/template"
 
+	"asciigoat.org/ini/basic"
 	"darvaza.org/core"
-	"gopkg.in/gcfg.v1"
 )
 
 var configTemplate = template.Must(template.New("config").Funcs(template.FuncMap{
@@ -107,6 +106,11 @@ func (ep EndpointAddress) String() string {
 	}
 }
 
+// UnmarshalText loads an endpoint address from text data
+func (ep *EndpointAddress) UnmarshalText(b []byte) error {
+	return ep.FromString(string(b))
+}
+
 // FromString sets the EndpointAddress from a given "[host]:port"
 func (ep *EndpointAddress) FromString(s string) error {
 	host, port, err := core.SplitHostPort(s)
@@ -127,98 +131,6 @@ func (ep *EndpointAddress) FromString(s string) error {
 	return nil
 }
 
-type intermediateConfig struct {
-	Interface interfaceConfig
-	Peer      peersConfig
-}
-
-func (v *intermediateConfig) Export() (*Config, error) {
-	var out Config
-	var err error
-
-	// Interface
-	out.Interface, err = v.Interface.Export()
-	if err != nil {
-		return nil, err
-	}
-
-	// Peers
-	peers, ok := v.PeersCount()
-	if !ok {
-		return nil, errors.New("inconsistent Peer data")
-	}
-
-	for i := 0; i < peers; i++ {
-		p, err := v.ExportPeer(i)
-		if err != nil {
-			err = core.Wrapf(err, "Peer[%v]:", i)
-			return nil, err
-		}
-
-		out.Peer = append(out.Peer, p)
-	}
-
-	return &out, nil
-}
-
-type interfaceConfig struct {
-	Address    netip.Addr
-	PrivateKey string
-	ListenPort uint16
-}
-
-func (p interfaceConfig) Export() (InterfaceConfig, error) {
-	var err error
-
-	out := InterfaceConfig{
-		Address:    p.Address,
-		ListenPort: p.ListenPort,
-	}
-
-	out.PrivateKey, err = PrivateKeyFromBase64(p.PrivateKey)
-	if err != nil {
-		err = core.Wrap(err, "PrivateKey")
-		return InterfaceConfig{}, err
-	}
-
-	return out, nil
-}
-
-type peersConfig struct {
-	PublicKey  []string
-	Endpoint   []string
-	AllowedIPs []string
-}
-
-func (v *intermediateConfig) ExportPeer(i int) (PeerConfig, error) {
-	var out PeerConfig
-
-	// Endpoint
-	s := v.Peer.Endpoint[i]
-	err := out.Endpoint.FromString(s)
-	if err != nil {
-		err = core.Wrap(err, "Endpoint")
-		return out, err
-	}
-
-	// PublicKey
-	out.PublicKey, err = PublicKeyFromBase64(v.Peer.PublicKey[i])
-	if err != nil {
-		err = core.Wrap(err, "PublicKey")
-		return out, err
-	}
-
-	// AllowedIPs
-	s = v.Peer.AllowedIPs[i]
-	out.AllowedIPs, err = parseAllowedIPs(s)
-	if err != nil {
-		err = core.Wrap(err, "AllowedIPs")
-		return out, err
-	}
-
-	return out, nil
-}
-
 func parseAllowedIPs(data string) ([]netip.Prefix, error) {
 	var out []netip.Prefix
 
@@ -235,25 +147,17 @@ func parseAllowedIPs(data string) ([]netip.Prefix, error) {
 	return out, nil
 }
 
-func (v *intermediateConfig) PeersCount() (int, bool) {
-	c0 := len(v.Peer.Endpoint)
-	c1 := len(v.Peer.PublicKey)
-	c2 := len(v.Peer.AllowedIPs)
-
-	if c0 != c1 || c1 != c2 {
-		return 0, false
-	}
-
-	return c0, true
-}
-
 // NewConfigFromReader parses a wgN.conf file
 func NewConfigFromReader(r io.Reader) (*Config, error) {
-	temp := &intermediateConfig{}
-
-	if err := gcfg.ReadInto(temp, r); err != nil {
+	doc, err := basic.Decode(r)
+	if err != nil {
 		return nil, err
 	}
 
-	return temp.Export()
+	cfg, err := newConfigFromDocument(doc)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
 }

pkg/wireguard/config_parser.go

@@ -0,0 +1,169 @@
+package wireguard
+
+import (
+	"io/fs"
+	"strconv"
+
+	"asciigoat.org/ini/basic"
+	"darvaza.org/core"
+)
+
+type sectionHandler func(*Config, *basic.Section) error
+
+var sectionMap = map[string]func(*Config, *basic.Section) error{
+	"Interface": loadInterfaceConfSection,
+	"Peer":      loadPeerConfSection,
+}
+
+func loadConfSection(out *Config, src *basic.Section) error {
+	h, ok := sectionMap[src.Key]
+	if !ok {
+		return core.Wrapf(fs.ErrInvalid, "unknown section %q", src.Key)
+	}
+
+	return h(out, src)
+}
+
+func loadInterfaceConfSection(out *Config, src *basic.Section) error {
+	var cfg InterfaceConfig
+
+	for _, field := range src.Fields {
+		if err := loadInterfaceConfField(&cfg, field); err != nil {
+			return core.Wrap(err, "Interface")
+		}
+	}
+
+	out.Interface = cfg
+	return nil
+}
+
+func loadPeerConfSection(out *Config, src *basic.Section) error {
+	var cfg PeerConfig
+
+	for _, field := range src.Fields {
+		if err := loadPeerConfField(&cfg, field); err != nil {
+			return core.Wrapf(err, "Peer[%v]", len(out.Peer))
+		}
+	}
+
+	out.Peer = append(out.Peer, cfg)
+	return nil
+}
+
+// revive:disable:cyclomatic
+// revive:disable:cognitive-complexity
+
+func loadInterfaceConfField(cfg *InterfaceConfig, field basic.Field) error {
+	// revive:enable:cyclomatic
+	// revive:enable:cognitive-complexity
+
+	// TODO: refactor when asciigoat's ini parser learns to do reflection
+	switch field.Key {
+	case "Address":
+		if !core.IsZero(cfg.Address) {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		err := cfg.Address.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	case "PrivateKey":
+		if !core.IsZero(cfg.PrivateKey) {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		err := cfg.PrivateKey.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	case "ListenPort":
+		if cfg.ListenPort > 0 {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		u64, err := strconv.ParseUint(field.Value, 10, 16)
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		case u64 == 0:
+			return core.Wrapf(fs.ErrInvalid, "invalid %q value", field.Key)
+		default:
+			cfg.ListenPort = uint16(u64)
+			return nil
+		}
+	default:
+		return core.Wrapf(fs.ErrInvalid, "unknown field %q", field.Key)
+	}
+}
+
+// revive:disable:cyclomatic
+// revive:disable:cognitive-complexity
+
+func loadPeerConfField(cfg *PeerConfig, field basic.Field) error {
+	// revive:enable:cyclomatic
+	// revive:enable:cognitive-complexity
+
+	switch field.Key {
+	case "PublicKey":
+		if !core.IsZero(cfg.PublicKey) {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		err := cfg.PublicKey.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	case "Endpoint":
+		if cfg.Endpoint.String() != "" {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		err := cfg.Endpoint.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	case "AllowedIPs":
+		s, err := parseAllowedIPs(field.Value)
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		case len(s) > 0:
+			cfg.AllowedIPs = append(cfg.AllowedIPs, s...)
+			return nil
+		}
+	default:
+		return core.Wrapf(fs.ErrInvalid, "unknown field %q", field.Key)
+	}
+	return nil
+}
+
+func newConfigFromDocument(doc *basic.Document) (*Config, error) {
+	var out Config
+
+	if len(doc.Global) > 0 {
+		err := core.Wrap(fs.ErrInvalid, "fields before the first section")
+		return nil, err
+	}
+
+	for i := range doc.Sections {
+		src := &doc.Sections[i]
+		if err := loadConfSection(&out, src); err != nil {
+			return nil, err
+		}
+	}
+
+	return &out, nil
+}

pkg/wireguard/keys.go

@@ -51,6 +51,30 @@ func (pub PublicKey) String() string {
 	}
 }
 
+// UnmarshalText loads the value from base64
+func (key *PrivateKey) UnmarshalText(b []byte) error {
+	v, err := PrivateKeyFromBase64(string(b))
+	switch {
+	case err != nil:
+		return err
+	default:
+		*key = v
+		return nil
+	}
+}
+
+// UnmarshalText loads the value from base64
+func (pub *PublicKey) UnmarshalText(b []byte) error {
+	v, err := PublicKeyFromBase64(string(b))
+	switch {
+	case err != nil:
+		return err
+	default:
+		*pub = v
+		return nil
+	}
+}
+
 // MarshalJSON encodes the key for JSON, omitting empty.
 func (key PrivateKey) MarshalJSON() ([]byte, error) {
 	return encodeKeyJSON(key.String())