jpictl: introduce --config-file/-f as alternative to scanning m/

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

.vscode/settings.json

@@ -1,10 +1,11 @@
 {
     "cSpell.words": [
+        "asciigoat",
         "ceph",
+        "cyclomatic",
         "darvaza",
         "gofrs",
         "jpictl",
-        "Lookuper",
         "Wrapf",
         "zerolog"
     ]

cmd/jpictl/config.go

@@ -19,24 +19,19 @@ type Config struct {
 	Base   string
 	Domain string
 
-	ConfigFile *string
+	ConfigFile string
 }
 
 var cfg = &Config{
 	Base:   "m",
 	Domain: "jpi.cloud",
-
-	ConfigFile: rootCmd.PersistentFlags().
-		StringP("config-file", "f", DefaultConfigFile, "config file (JSON or YAML)"),
 }
 
 // LoadZones loads all zones and machines in the config directory
 // or file
 func (cfg *Config) LoadZones(resolve bool) (*cluster.Cluster, error) {
-	configFile := *cfg.ConfigFile
-
 	// try config file first
-	zones, err := cluster.NewFromConfig(configFile,
+	zones, err := cluster.NewFromConfig(cfg.ConfigFile,
 		cluster.ResolvePublicAddresses(resolve),
 		cluster.WithLogger(log),
 	)
@@ -45,9 +40,9 @@ func (cfg *Config) LoadZones(resolve bool) (*cluster.Cluster, error) {
 	case err == nil:
 		// file was good
 		return zones, nil
-	case !os.IsNotExist(err) || configFile != DefaultConfigFile:
+	case !os.IsNotExist(err) || cfg.ConfigFile != DefaultConfigFile:
 		// file was bad
-		return nil, core.Wrapf(err, "NewFromConfig(%q)", configFile)
+		return nil, core.Wrapf(err, "NewFromConfig(%q)", cfg.ConfigFile)
 	}
 
 	// default file doesn't exist. scan instead.
@@ -56,3 +51,9 @@ func (cfg *Config) LoadZones(resolve bool) (*cluster.Cluster, error) {
 		cluster.WithLogger(log),
 	)
 }
+
+func init() {
+	rootCmd.PersistentFlags().
+		StringVarP(&cfg.ConfigFile, "config-file", "f",
+			DefaultConfigFile, "config file (JSON or YAML)")
+}

cmd/jpictl/dns.go

@@ -1,48 +0,0 @@
-package main
-
-import (
-	"github.com/spf13/cobra"
-)
-
-// Command
-var dnsCmd = &cobra.Command{
-	Use: "dns",
-}
-
-var dnsSyncCmd = &cobra.Command{
-	Use: "sync",
-	RunE: func(_ *cobra.Command, _ []string) error {
-		_, err := cfg.LoadZones(true)
-		return err
-	},
-}
-
-var dnsWriteCmd = &cobra.Command{
-	Use: "write",
-	RunE: func(_ *cobra.Command, _ []string) error {
-		return nil
-	},
-}
-
-var dnsAddCmd = &cobra.Command{
-	Use: "add",
-	RunE: func(_ *cobra.Command, _ []string) error {
-		return nil
-	},
-}
-
-var dnsRemoveCmd = &cobra.Command{
-	Use: "remove",
-	RunE: func(_ *cobra.Command, _ []string) error {
-		return nil
-	},
-}
-
-func init() {
-	rootCmd.AddCommand(dnsCmd)
-
-	dnsCmd.AddCommand(dnsSyncCmd)
-	dnsCmd.AddCommand(dnsWriteCmd)
-	dnsCmd.AddCommand(dnsAddCmd)
-	dnsCmd.AddCommand(dnsRemoveCmd)
-}

cmd/jpictl/dump.go

@@ -45,8 +45,9 @@ const encoding = YAMLEncoding
 
 // Command
 var dumpCmd = &cobra.Command{
-	Use:   "dump",
-	Short: "generates a text representation of the config",
+	Use:    "dump",
+	Short:  "generates a text representation of the config",
+	PreRun: setVerbosity,
 	RunE: func(_ *cobra.Command, _ []string) error {
 		var buf bytes.Buffer
 		var enc Encoder

cmd/jpictl/env.go

@@ -8,8 +8,9 @@ import (
 
 // Command
 var envCmd = &cobra.Command{
-	Use:   "env",
-	Short: "generates environment variables for shell scripts",
+	Use:    "env",
+	Short:  "generates environment variables for shell scripts",
+	PreRun: setVerbosity,
 	RunE: func(_ *cobra.Command, _ []string) error {
 		m, err := cfg.LoadZones(false)
 		if err != nil {

cmd/jpictl/gateway.go

@@ -20,8 +20,9 @@ var gatewayCmd = &cobra.Command{
 
 // gateway set
 var gatewaySetCmd = &cobra.Command{
-	Use:   "set",
-	Short: "gateway set sets machines as gateways",
+	Use:    "set",
+	Short:  "gateway set sets machines as gateways",
+	PreRun: setVerbosity,
 	RunE: func(_ *cobra.Command, args []string) error {
 		m, err := cfg.LoadZones(false)
 		if err != nil {

cmd/jpictl/log.go

@@ -3,15 +3,9 @@ package main
 import (
 	"fmt"
 
-	"darvaza.org/sidecar/pkg/logger/zerolog"
 	"darvaza.org/slog"
 )
 
-// TODO: make log level configurable via flags
-var (
-	log = zerolog.New(nil, slog.Debug)
-)
-
 // fatal is a convenience wrapper for slog.Logger.Fatal().Print()
 func fatal(err error, msg string, args ...any) {
 	l := log.Fatal()

cmd/jpictl/main.go

@@ -2,6 +2,8 @@
 package main
 
 import (
+	"darvaza.org/sidecar/pkg/logger/zerolog"
+	"darvaza.org/slog"
 	"github.com/spf13/cobra"
 )
 
@@ -10,13 +12,30 @@ const (
 	CmdName = "jpictl"
 )
 
-var rootCmd = &cobra.Command{
-	Use:   CmdName,
-	Short: "control tool for jpi.cloud",
-}
+var (
+	log       = zerolog.New(nil, slog.Error)
+	verbosity int
+	rootCmd   = &cobra.Command{
+		Use:   CmdName,
+		Short: "control tool for jpi.cloud",
+	}
+)
 
 func main() {
 	if err := rootCmd.Execute(); err != nil {
 		fatal(err, "")
 	}
 }
+
+func init() {
+	rootCmd.PersistentFlags().CountVarP(&verbosity, "verbosity", "v",
+		"increase the verbosity level to Warn, Info or Debug")
+}
+
+func setVerbosity(_ *cobra.Command, _ []string) {
+	desired := int8(slog.Error) + int8(verbosity)
+	if desired > 6 {
+		desired = 6
+	}
+	log = log.WithLevel(slog.LogLevel(desired))
+}

cmd/jpictl/write.go

@@ -6,8 +6,9 @@ import (
 
 // Command
 var writeCmd = &cobra.Command{
-	Use:   "write",
-	Short: "rewrites all config files",
+	Use:    "write",
+	Short:  "rewrites all config files",
+	PreRun: setVerbosity,
 	RunE: func(_ *cobra.Command, _ []string) error {
 		m, err := cfg.LoadZones(false)
 		if err != nil {

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
@@ -11,8 +13,6 @@ require (
 	darvaza.org/slog/handlers/discard v0.4.5
 	github.com/gofrs/uuid/v5 v5.0.0
 	github.com/hack-pad/hackpadfs v0.2.1
-	github.com/libdns/cloudflare v0.1.0
-	github.com/libdns/libdns v0.2.1
 	github.com/mgechev/revive v1.3.3
 	github.com/spf13/cobra v1.7.0
 	golang.org/x/crypto v0.12.0

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=
@@ -36,11 +34,6 @@ github.com/hack-pad/hackpadfs v0.2.1 h1:FelFhIhv26gyjujoA/yeFO+6YGlqzmc9la/6iKMI
 github.com/hack-pad/hackpadfs v0.2.1/go.mod h1:khQBuCEwGXWakkmq8ZiFUvUZz84ZkJ2KNwKvChs4OrU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/libdns/cloudflare v0.1.0 h1:93WkJaGaiXCe353LHEP36kAWCUw0YjFqwhkBkU2/iic=
-github.com/libdns/cloudflare v0.1.0/go.mod h1:a44IP6J1YH6nvcNl1PverfJviADgXUnsozR3a7vBKN8=
-github.com/libdns/libdns v0.2.0/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
-github.com/libdns/libdns v0.2.1 h1:Wu59T7wSHRgtA0cfxC+n1c/e+O3upJGWytknkmFEDis=
-github.com/libdns/libdns v0.2.1/go.mod h1:yQCXzk1lEZmmCPa857bnk4TsOiqYasqpyOEeSObbb40=
 github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=

pkg/cluster/cluster_import.go

@@ -2,6 +2,7 @@ package cluster
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 
 	"gopkg.in/yaml.v3"
@@ -22,25 +23,58 @@ func (m *Cluster) init(opts *ScanOptions) error {
 	return nil
 }
 
-func (m *Cluster) initZones(_ *ScanOptions) error {
+func (m *Cluster) initZones(opts *ScanOptions) error {
 	var err error
 
 	m.ForEachZone(func(z *Zone) bool {
-		z.zones = m
-		z.logger = m
-
-		z.ForEachMachine(func(p *Machine) bool {
-			p.zone = z
-			p.logger = z
-			return err != nil
-		})
-
+		err = m.initZone(z, opts)
 		return err != nil
 	})
 
 	return err
 }
 
+func (m *Cluster) initZone(z *Zone, _ *ScanOptions) error {
+	var hasMissing bool
+	var lastMachineID int
+
+	z.zones = m
+	z.logger = m
+
+	z.ForEachMachine(func(p *Machine) bool {
+		p.zone = z
+		p.logger = z
+
+		switch {
+		case p.ID == 0:
+			hasMissing = true
+		case p.ID > lastMachineID:
+			lastMachineID = z.ID
+		}
+
+		return false
+	})
+
+	if hasMissing {
+		next := lastMachineID + 1
+
+		z.ForEachMachine(func(p *Machine) bool {
+			if p.ID == 0 {
+				p.ID, next = next, next+1
+			}
+
+			return false
+		})
+	}
+
+	z.ForEachMachine(func(p *Machine) bool {
+		p.Name = fmt.Sprintf("%s-%v", z.Name, p.ID)
+		return false
+	})
+
+	return nil
+}
+
 func decodeConfigData(data []byte) (out *Cluster, err error) {
 	// try JSON first
 	out = new(Cluster)

pkg/cluster/defaults.go

@@ -15,8 +15,3 @@ func DefaultLogger() slog.Logger {
 func DefaultLookuper() resolver.Lookuper {
 	return resolver.NewCloudflareLookuper()
 }
-
-// DefaultResolver returns a [resolver.Resolver] using Cloudflare's 1.1.1.1
-func DefaultResolver() resolver.Resolver {
-	return resolver.NewResolver(DefaultLookuper())
-}

pkg/dns/dns.go

@@ -1,12 +0,0 @@
-// Package dns manages DNS entries for the cluster
-package dns
-
-// A Region describes where a Zone is
-type Region 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
-}

pkg/dns/manager.go

@@ -1,121 +0,0 @@
-package dns
-
-import (
-	"darvaza.org/core"
-	"darvaza.org/resolver"
-	"darvaza.org/slog"
-
-	"git.jpi.io/amery/jpictl/pkg/cluster"
-)
-
-// Manager is a DNS Manager instance
-type Manager struct {
-	p Provider
-	r resolver.Resolver
-	l slog.Logger
-}
-
-// ManagerOption configures a Manager
-type ManagerOption func(*Manager) error
-
-func newErrorManagerOption(err error, hint string) ManagerOption {
-	return func(*Manager) error {
-		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
-	}
-}
-
-// WithLookuper attaches a resolver.Lookuper to the Manager
-func WithLookuper(h resolver.Lookuper) ManagerOption {
-	if h == nil {
-		h = cluster.DefaultLookuper()
-	}
-
-	return func(mgr *Manager) error {
-		mgr.r = resolver.NewResolver(h)
-		return nil
-	}
-}
-
-// WithResolver attaches a resolver.Resolver to the Manager
-func WithResolver(r resolver.Resolver) ManagerOption {
-	if r == nil {
-		r = cluster.DefaultResolver()
-	}
-
-	return func(mgr *Manager) error {
-		mgr.r = r
-		return nil
-	}
-}
-
-// WithLogger attaches a logger to the Manager
-func WithLogger(log slog.Logger) ManagerOption {
-	if log == nil {
-		log = cluster.DefaultLogger()
-	}
-
-	return func(mgr *Manager) error {
-		mgr.l = log
-		return nil
-	}
-}
-
-func (mgr *Manager) setDefaults() error {
-	var opts []ManagerOption
-
-	if mgr.p == nil {
-		opts = append(opts, WithProvider(nil))
-	}
-
-	if mgr.r == nil {
-		opts = append(opts, WithResolver(nil))
-	}
-
-	if mgr.l == nil {
-		opts = append(opts, WithLogger(nil))
-	}
-
-	for _, opt := range opts {
-		if err := opt(mgr); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// NewManager creates a DNS manager with the
-func NewManager(opts ...ManagerOption) (*Manager, error) {
-	mgr := new(Manager)
-
-	for _, opt := range opts {
-		if err := opt(mgr); err != nil {
-			return nil, err
-		}
-	}
-
-	if err := mgr.setDefaults(); err != nil {
-		return nil, err
-	}
-	return mgr, nil
-}

pkg/dns/provider.go

@@ -1,36 +0,0 @@
-package dns
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/libdns/cloudflare"
-	"github.com/libdns/libdns"
-)
-
-const (
-	// CloudflareAPIToken is the environment variable
-	// containing the API Token
-	CloudflareAPIToken = "CLOUDFLARE_DNS_API_TOKEN"
-)
-
-// Provider manages DNS entries
-type Provider interface {
-	libdns.RecordGetter
-	libdns.RecordDeleter
-}
-
-// DefaultDNSProvider returns a cloudflare DNS provider
-// using an API Token from env [CloudflareAPIToken]
-func DefaultDNSProvider() (*cloudflare.Provider, error) {
-	s := os.Getenv(CloudflareAPIToken)
-	if s == "" {
-		return nil, fmt.Errorf("%q: %s", CloudflareAPIToken, "not found")
-	}
-
-	p := &cloudflare.Provider{
-		APIToken: s,
-	}
-
-	return p, nil
-}