add 'license show', add printer.NewTableEmpty() along .WithHeaders() (#69)

README.md

@@ -23,6 +23,8 @@ Features:
 - Shell completion support (bash, zsh and fish). Put this into your
   rc: `source <(esctl completion bash)`.
 - Cluster settings can be viewed and modified.
+- Comprehensive cluster status.
+- Cluster reroute support.
 - Search: you can search indices using full text or by fields, select
   logical condition (OR, AND), use PIT, limit datetime (ES date math
   can be used), etc. It is however not yet possible to create
@@ -47,7 +49,9 @@ Features:
   elasticsearch API.  You can  run API calls  on the  current selected
   cluster w/o the hassle to specify the whole url, credentials etc. It
   has line  editing and history  support. If `jq` is  installed output
-  JSON will be syntax highlighted.
+  JSON will  be syntax  highlighted. A simple  internal pager  will be
+  used if output exceeds the terminal height. You can tweak this using
+  the `$ES_JSON_PAGER` environment variable (I'd recommend [fx](https://fx.wtf/)).
 - Doc support. You can put, delete and show docs for an index. Very
   handy if you want to play with it. Just create a new index:
   `esctl index create foo` and then insert docs into it for search
@@ -546,6 +550,8 @@ index                       - manage indicies
     create                  - create a new index template
     update                  - update a new index template
     delete                  - delete an index template
+license                     - manage cluster license
+  show                      - show details about the cluster license
 node                        - manage nodes
   list                      - list nodes
   show                      - show details about a node
@@ -567,7 +573,7 @@ task                        - manage tasks
 version                     - show esctl version information
 debug                       - developer only
 help-jsonpath               - show jsonpath help
-help-command-overview       - show overview of all available commands
+help-usage                  - show overview of all available commands
 ```
 
 # Development

cmd/api.go

@@ -83,6 +83,16 @@ func ApiRepl(conf *cfg.Config) *cli.Command {
 		Aliases: []string{"shell"},
 		Usage:   "interactive API repl",
 
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:        "pager",
+				Usage:       "external viewer program (default:internal)",
+				Destination: &conf.Pager,
+				Aliases:     []string{"p"},
+				Sources:     cli.EnvVars("PAGER", "ES_JSON_PAGER"),
+			},
+		},
+
 		Action: func(ctx context.Context, cmd *cli.Command) error {
 			return es.ApiRepl(conf)
 		},

cmd/cluster_settings.go

@@ -104,6 +104,10 @@ func ClusterSettingsSet(conf *cfg.Config) *cli.Command {
 			},
 		},
 
+		ShellComplete: func(ctx context.Context, cmd *cli.Command) {
+			complete(cmd, Cclustersettings)
+		},
+
 		Action: func(ctx context.Context, cmd *cli.Command) error {
 			args := cmd.Args()
 

cmd/completion.go

@@ -33,6 +33,7 @@ const (
 	Capi
 	Cilm
 	Cnode
+	Cclustersettings
 )
 
 func complete(cmd *cli.Command, what int) {
@@ -67,6 +68,8 @@ func complete(cmd *cli.Command, what int) {
 		list, err = es.IlmNames(conf)
 	case Cnode:
 		list, err = es.NodeNames(conf)
+	case Cclustersettings:
+		list, err = es.ClusterSettingsNames(conf)
 	}
 
 	if err != nil {

cmd/license.go

@@ -0,0 +1,49 @@
+/*
+Copyright © 2026 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+package cmd
+
+import (
+	"context"
+
+	"codeberg.org/scip/esctl/pkg/cfg"
+	"codeberg.org/scip/esctl/pkg/es"
+
+	"github.com/urfave/cli/v3"
+)
+
+func License(conf *cfg.Config) *cli.Command {
+	return &cli.Command{
+		Name:  "license",
+		Usage: "manage cluster license",
+
+		Commands: []*cli.Command{
+			LicenseShow(conf),
+		},
+	}
+}
+
+func LicenseShow(conf *cfg.Config) *cli.Command {
+	return &cli.Command{
+		Name:    "show",
+		Aliases: []string{"sh"},
+		Usage:   "show details about the cluster license",
+
+		Action: func(ctx context.Context, cmd *cli.Command) error {
+			return es.LicenseShow(conf)
+		},
+	}
+}

cmd/root.go

@@ -108,6 +108,7 @@ func Main() int {
 			Doc(conf),
 			Ilm(conf),
 			Index(conf),
+			License(conf),
 			Node(conf),
 			Roles(conf),
 			Search(conf),
@@ -248,9 +249,11 @@ func Debug(conf *cfg.Config) *cli.Command {
 
 func HelpUsage(conf *cfg.Config) *cli.Command {
 	return &cli.Command{
-		Name:    "help-command-overview",
+		Name:               "help-usage",
 		Usage:              "show overview of all available commands",
+		UsageText:          "help-usage [<filter>]",
 		Aliases:            []string{"usage"},
+		CustomHelpTemplate: addReference(`<filter> implies -f`),
 
 		Flags: []cli.Flag{
 			&cli.BoolFlag{
@@ -259,16 +262,32 @@ func HelpUsage(conf *cfg.Config) *cli.Command {
 				Destination: &conf.Hidden,
 				Aliases:     []string{"H"},
 			},
+			&cli.BoolFlag{
+				Name:        "full-commands",
+				Usage:       "show full commands",
+				Destination: &conf.Force,
+				Aliases:     []string{"f"},
+			},
 		},
 
 		Action: func(ctx context.Context, cmd *cli.Command) error {
 			maxCommandWidth := 0
+			filter := cmd.Args().Get(0)
+
+			if filter != "" {
+				conf.Force = true
+			}
 
 			// first pass, determine max command width
 			if err := walkVisible(conf, cmd.Root(), func(cmd *cli.Command) error {
 				path := cmd.Path()
 				size := len(path[len(path)-1])
 
+				if conf.Force {
+					path := strings.Join(cmd.Path(), " ")
+					size = len(path)
+				}
+
 				if size > maxCommandWidth {
 					maxCommandWidth = size
 				}
@@ -283,9 +302,19 @@ func HelpUsage(conf *cfg.Config) *cli.Command {
 			// second pass, build tree
 			return walkVisible(conf, cmd.Root(), func(cmd *cli.Command) error {
 				path := cmd.Path()
-				command := path[len(path)-1]
 
-				if len(path) == 1 || command == "help" {
+				if filter != "" {
+					if !strings.Contains(strings.Join(path, " "), filter) {
+						return nil
+					}
+				}
+
+				command := path[len(path)-1]
+				if conf.Force {
+					command = strings.Join(cmd.Path(), " ")
+				}
+
+				if len(path) == 1 || strings.HasSuffix(command, "help") {
 					return nil
 				}
 

pkg/cfg/automate.go

@@ -1,174 +0,0 @@
-/*
-Copyright © 2026 Thomas von Dein
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-package cfg
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"fmt"
-	"log/slog"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-	"time"
-
-	"gopkg.in/yaml.v3"
-)
-
-type Automator struct {
-	IsReachable bool
-	Error       error
-	Env         []string
-	Cluster     *Cluster
-
-	// all bash commands, .name must succeed first
-	Name string `yaml:"name"`
-	User string `yaml:"user"`
-	Pass string `yaml:"pass"`
-	Uri  string `yaml:"uri"`
-}
-
-type AutomatorRunner struct {
-	Output string
-	Error  error
-}
-
-func NewAutoEnv() []string {
-	return []string{
-		"PATH=" + os.Getenv("PATH"),
-		"HOME=" + os.Getenv("HOME"),
-		"SHELL=" + os.Getenv("SHELL"),
-		"KUBECONFIG=" + os.Getenv("KUBECONFIG"),
-	}
-}
-
-func NewAutomator() Automator {
-	autocfg := filepath.Join([]string{os.Getenv("HOME"), ".config", "esctl", "automate.yaml"}...)
-
-	auto := Automator{Env: NewAutoEnv()}
-
-	if !fileExists(autocfg) {
-		return auto
-	}
-
-	data, err := os.ReadFile(autocfg)
-	if err != nil {
-		auto.Error = fmt.Errorf("failed to read config file: %w", err)
-		return auto
-	}
-
-	err = yaml.Unmarshal(data, &auto)
-	if err != nil {
-		auto.Error = fmt.Errorf("failed to unmarshal config file: %w", err)
-		return auto
-	}
-
-	hasname := execute(auto.Name, auto.Env)
-	if hasname.Error != nil {
-		auto.Error = hasname.Error
-		return auto
-	}
-	auto.Name = hasname.Output
-
-	hasuser := execute(auto.User, auto.Env)
-	if hasuser.Error != nil {
-		auto.Error = hasuser.Error
-		return auto
-	}
-	auto.User = hasuser.Output
-
-	haspass := execute(auto.Pass, auto.Env)
-	if haspass.Error != nil {
-		auto.Error = haspass.Error
-		return auto
-	}
-	auto.Pass = haspass.Output
-
-	hasuri := execute(auto.Uri, auto.Env)
-	if hasuri.Error != nil {
-		auto.Error = hasuri.Error
-		return auto
-	}
-	auto.Uri = hasuri.Output
-
-	auto.IsReachable = true
-
-	auto.Cluster = &Cluster{
-		Name: auto.Name,
-		Uri:  auto.Uri,
-		User: auto.User,
-		Pass: auto.Pass,
-	}
-
-	return auto
-}
-
-// FIXME: execute auto.Exec, if defined, in a go routine and let it run forever, might be a tunnel
-func (auto *Automator) Exec() {}
-
-// FIXME:  cache automator  results, only  check auto.Name  and if  it matches the cache use those vars, but run auto.Exec anyway
-func (auto *Automator) Cache() {}
-
-func execute(code string, env []string) *AutomatorRunner {
-	timeoutCtx, cancel := context.WithTimeout(context.Background(),
-		time.Duration(10)*time.Second)
-	defer cancel()
-
-	var cmd *exec.Cmd
-
-	// pipe code into bash
-	cmd = exec.CommandContext(timeoutCtx, "bash")
-	cmd.Stdin = strings.NewReader(code)
-
-	cmd.Env = env
-	errbuf := &bytes.Buffer{}
-	cmd.Stderr = errbuf
-
-	done := make(chan bool)
-	out := AutomatorRunner{}
-
-	go func() {
-		output, err := cmd.Output()
-
-		out.Output = strings.TrimSpace(string(output))
-
-		switch {
-		case err != nil:
-			out.Error = err
-		case errbuf.Len() > 0:
-			out.Error = fmt.Errorf(errbuf.String())
-		case timeoutCtx.Err() == context.DeadlineExceeded:
-			out.Error = errors.New("timed out")
-		}
-
-		slog.Debug("executed automator",
-			"code", code,
-			"output", out.Output,
-			"error", out.Error)
-
-		done <- true
-	}()
-
-	for {
-		select {
-		case <-done:
-			return &out
-		}
-	}
-}

pkg/cfg/cluster.go

@@ -17,10 +17,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 package cfg
 
 import (
-	"context"
 	"crypto/tls"
 	"errors"
 	"fmt"
+	"net"
 	"net/http"
 	"os"
 	"strings"
@@ -185,45 +185,28 @@ func (conf *Config) SwitchCluster(name string) error {
 
 // We do NOT  use go-elasticsearch to check  for cluster reachability,
 // because  at this  stage,  auth  may not  have  been configured.  So
-// instead we just connect to  the cluster using plan net/http, ignore
+// instead we just connect to  the cluster using plan net/tcp
-// HTTP response status and return true if we could just reach ith
 func (cluster *Cluster) IsReachable() (bool, error) {
-	ctx, cancel := context.WithTimeout(
+	timeout := 500 * time.Millisecond
-		context.Background(),
-		time.Duration(500)*time.Millisecond)
-	defer cancel()
 
-	req, err := http.NewRequestWithContext(
+	url := strings.TrimPrefix(strings.TrimPrefix(cluster.Uri, "https://"), "http://")
-		ctx,
-		"GET",
-		cluster.Uri,
-		nil,
-	)
 
+	host := strings.Split(url, "/")
+
+	if !strings.Contains(host[0], ":") {
+		host[0] += ":443"
+	}
+
+	conn, err := net.DialTimeout("tcp", host[0], timeout)
 	if err != nil {
 		return false, err
 	}
 
-	client := &http.Client{Transport: &http.Transport{
+	return true, conn.Close()
-		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
-	}}
-
-	resp, err := client.Do(req)
-
-	if err != nil {
-		return false, err
-	}
-
-	if resp != nil {
-		// at this  stage we do not care if  the elasticsearch cluster
-		// accepts our request or if it's misconfigured in some way
-		return true, nil
-	}
-
-	return false, nil
 }
 
-func (conf *Config) SetupElasticClient(name string, cluster *Cluster) error {
+func (conf *Config) SetupES() error {
+	for name, cluster := range conf.Clusters {
 		cluster.Name = name
 		cluster.DebugHTTP = conf.DebugHTTP
 
@@ -243,15 +226,6 @@ func (conf *Config) SetupElasticClient(name string, cluster *Cluster) error {
 		}
 
 		cluster.SetClient(es)
-
-	return nil
-}
-
-func (conf *Config) SetupElasticClients() error {
-	for name, cluster := range conf.Clusters {
-		if err := conf.SetupElasticClient(name, cluster); err != nil {
-			return err
-		}
 	}
 
 	return nil

pkg/cfg/config.go

@@ -106,6 +106,8 @@ type Config struct {
 
 	FromNode, ToNode             string // cluster reroute move: -f + -t
 	AllowPrimary, AcceptDataLoss bool   // cluster reroute cancel: -p,-a
+
+	Pager string // api repl: -p || PAGER
 }
 
 func NewConfig() *Config {
@@ -133,10 +135,22 @@ func (conf *Config) Init() error {
 		}
 	}
 
-	if err := conf.SetupElasticClients(); err != nil {
+	if err := conf.SetupES(); err != nil {
 		return err
 	}
 
+	if err := conf.determineDefaultCluster(); err != nil {
+		return err
+	}
+
+	conf.HaveJQ = isJQinstalled()
+
+	conf.PrintDebug()
+
+	return nil
+}
+
+func (conf *Config) determineDefaultCluster() error {
 	if conf.CurrentCluster != "" {
 		// -C specified, set current cluster explicitly, no matter what the config says
 		current, exists := conf.Clusters[conf.CurrentCluster]
@@ -153,9 +167,6 @@ func (conf *Config) Init() error {
 			conf.DefaultCluster.Default = true
 		}
 	} else {
-		// load auto config, if any
-		auto := NewAutomator()
-
 		// we need to determine ourselfes
 		if len(conf.Clusters) == 1 {
 			// ok, just one cluster configured, use this, of course
@@ -164,14 +175,6 @@ func (conf *Config) Init() error {
 				conf.CurrentCluster = name
 				conf.DefaultCluster.Default = true
 			}
-		} else if auto.Error == nil && auto.IsReachable {
-			// use auto conf
-			if err := conf.SetupElasticClient(auto.Name, auto.Cluster); err != nil {
-				return err
-			}
-
-			conf.DefaultCluster = auto.Cluster
-			conf.CurrentCluster = auto.Name
 		} else {
 			// multiple ones exists, look if one is set as default
 			for name, cluster := range conf.Clusters {
@@ -183,10 +186,6 @@ func (conf *Config) Init() error {
 		}
 	}
 
-	conf.HaveJQ = isJQinstalled()
-
-	conf.PrintDebug()
-
 	return nil
 }
 

pkg/cfg/term.go

@@ -36,3 +36,14 @@ func GetTermWidth() int {
 
 	return 80
 }
+
+func GetTermHeight() int {
+	if term.IsTerminal(int(os.Stdout.Fd())) {
+		_, height, err := term.GetSize(int(os.Stdout.Fd()))
+		if err == nil {
+			return height
+		}
+	}
+
+	return 25
+}

pkg/es/api.go

@@ -141,14 +141,54 @@ func ApiRepl(conf *cfg.Config) error {
 			fmt.Printf("failed to call API: %s\n", esErrorString(err))
 		}
 
-		if err := prettyfiJson(conf, raw); err != nil {
+		pageJsonOutput(conf, raw)
-			fmt.Println(err)
-		}
 	}
 
 	return nil
 }
 
+func pageJsonOutput(conf *cfg.Config, raw []byte) {
+	tmpconf := &cfg.Config{HaveJQ: conf.HaveJQ}
+
+	if conf.Pager != "" {
+		tmpconf.HaveJQ = false
+	}
+
+	output, err := prettyfiJson(tmpconf, raw)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	lines := len(strings.Split(output, "\n"))
+	height := cfg.GetTermHeight()
+
+	if lines > height {
+		if conf.Pager != "" {
+			cmd := strings.Split(conf.Pager, " ")
+			pager := exec.Command(cmd[0], cmd[1:]...)
+
+			var buf bytes.Buffer
+			buf.WriteString(output)
+
+			pager.Stdout = os.Stdout
+			pager.Stdin = &buf
+			pager.Stderr = os.Stderr
+
+			err := pager.Run()
+
+			if err != nil {
+				fmt.Printf("failed to execute pager '%s': %s", conf.Pager, err)
+			}
+		} else {
+			printer.Pager("json output", output)
+		}
+
+		return
+	}
+
+	fmt.Println(output)
+}
+
 func encodeAuth(username, password string) string {
 	return base64.StdEncoding.EncodeToString([]byte(username + ":" + password))
 }
@@ -163,6 +203,12 @@ func CallAPI(conf *cfg.Config, verb, path, data string) ([]byte, error) {
 
 	client := &http.Client{Transport: tr}
 
+	if conf.DebugHTTP {
+		client = &http.Client{
+			Transport: &cfg.DebugTransport{
+				Transport: tr}}
+	}
+
 	req, err := http.NewRequest(verb, conf.DefaultCluster.Uri+path, bytes.NewBuffer([]byte(data)))
 	if err != nil {
 		return nil, err
@@ -197,7 +243,7 @@ func CallAPI(conf *cfg.Config, verb, path, data string) ([]byte, error) {
 	return body, nil
 }
 
-func prettyfiJson(conf *cfg.Config, raw []byte) error {
+func prettyfiJson(conf *cfg.Config, raw []byte) (string, error) {
 	if conf.HaveJQ {
 		cmd := exec.CommandContext(context.Background(), "jq", "-C")
 		cmd.Stdin = bytes.NewReader(raw)
@@ -207,23 +253,18 @@ func prettyfiJson(conf *cfg.Config, raw []byte) error {
 
 		err := cmd.Run()
 		if err != nil {
-			return err
+			return "", err
 		}
 
-		fmt.Println(out.String())
+		return out.String(), nil
-
-		return nil
 	}
-
 	var pretty bytes.Buffer
 	err := json.Indent(&pretty, raw, "", "\t")
 	if err != nil {
-		return fmt.Errorf("json parse error: %s", err)
+		return "", fmt.Errorf("json parse error: %s", err)
 	}
 
-	fmt.Println(pretty.String())
+	return pretty.String(), nil
-
-	return nil
 }
 
 // interactively  read  arbitrary  JSON  data  from  STDIN,  which  is

pkg/es/cluster.go

@@ -31,44 +31,62 @@ import (
 
 type ClusterIndices map[string]map[string]*types.IndicesRecord
 
-func ClusterList(conf *cfg.Config) error {
+type clusterReachable struct {
-	table := printer.NewTable(conf, 5, len(conf.Clusters))
+	reachable bool
+	err       error
+}
 
+func ClusterList(conf *cfg.Config) error {
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	reachable := make(map[string]clusterReachable, len(conf.Clusters))
+
+	// check endpoints in parallel to speed things up
+	for name, cluster := range conf.Clusters {
+		wg.Add(1)
+
+		go func() {
+			defer wg.Done()
+			online, err := cluster.IsReachable()
+
+			mu.Lock()
+			reachable[name] = clusterReachable{reachable: online, err: err}
+			mu.Unlock()
+		}()
+	}
+
+	wg.Wait()
+
+	table := printer.NewTable(conf, 5, len(conf.Clusters))
 	table.Addheaders("cluster", "uri", "reachable", "current", "error")
 
 	idx := 0
 
 	for name, cluster := range conf.Clusters {
-		reachable := "no"
+		reachableStr := "no"
 		current := "no"
 		errmsg := ""
 
-		online, err := cluster.IsReachable()
+		if reachable[name].reachable {
-
+			reachableStr = printer.Colorize(conf, "green", "reachable")
-		if online {
-			reachable = printer.Colorize(conf, "green", "reachable")
 		}
 
 		if cluster.Default {
 			current = printer.Colorize(conf, "green", "yes")
 
-			if !online {
+			if !reachable[name].reachable {
-				reachable = printer.Colorize(conf, "red", "no")
+				reachableStr = printer.Colorize(conf, "red", "no")
-				errmsg = err.Error()
+				errmsg = reachable[name].err.Error()
 			}
 		}
 
-		table.Entries[idx] = []string{name, cluster.Uri, reachable, current, errmsg}
+		table.Entries[idx] = []string{name, cluster.Uri, reachableStr, current, errmsg}
 		idx++
 	}
 
 	table.Sort()
 
-	if err := table.Print(); err != nil {
+	return table.Print()
-		return err
-	}
-
-	return nil
 }
 
 // We're using goroutines  here to parallelize API  requests, since we

pkg/es/cluster_settings.go

@@ -20,15 +20,19 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"log/slog"
 
 	"codeberg.org/scip/esctl/pkg/cfg"
 	"codeberg.org/scip/esctl/pkg/printer"
 	"github.com/urfave/cli/v3"
 )
 
+func ClusterSettingsNames(conf *cfg.Config) ([]string, error) {
+	return validClusterSettings, nil
+}
+
 func ClusterSettingsList(conf *cfg.Config) error {
 	res, err := conf.DefaultCluster.ES().Cluster.GetSettings().
+		FlatSettings(true).
 		Do(context.Background())
 	if err != nil {
 		return fmt.Errorf("failed to get cluster settings: %s", esErrorString(err))
@@ -48,19 +52,7 @@ func ClusterSettingsList(conf *cfg.Config) error {
 	}
 
 	for topic, val := range settingshash {
-		data := map[string]any{}
+		entries = append(entries, []string{topic, string(val)})
-
-		err := json.Unmarshal(val, &data)
-		if err != nil {
-			return fmt.Errorf("failed to unmarshall setting for topic %s: %s", topic, err)
-		}
-
-		paths := getJsonPath(map[string]string{}, data, topic)
-		slog.Debug("settings", topic, paths)
-
-		for setting, value := range paths {
-			entries = append(entries, []string{setting, fmt.Sprintf("%v", value)})
-		}
 	}
 
 	table.Entries = entries

pkg/es/cluster_settings_const.go

@@ -0,0 +1,914 @@
+/*
+Copyright © 2026 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+package es
+
+// manually extracted from https://www.elastic.co/docs/reference/elasticsearch/configuration-reference
+
+var validClusterSettings []string = []string{
+	"xpack.security.audit.enabled",
+	"xpack.security.audit.logfile.events.include",
+	"xpack.security.audit.logfile.events.exclude",
+	"xpack.security.audit.logfile.events.emit_request_body",
+	"xpack.security.audit.logfile.emit_node_name",
+	"xpack.security.audit.logfile.emit_node_host_address",
+	"xpack.security.audit.logfile.emit_node_host_name",
+	"xpack.security.audit.logfile.emit_node_id",
+	"indices.breaker.total.use_real_memory",
+	"indices.breaker.total.limit",
+	"indices.breaker.fielddata.limit",
+	"indices.breaker.fielddata.overhead",
+	"indices.breaker.request.limit",
+	"indices.breaker.request.overhead",
+	"network.breaker.inflight_requests.limit",
+	"network.breaker.inflight_requests.overhead",
+	"script.max_compilations_rate",
+	"script.painless.regex.enabled",
+	"breaker.eql_sequence.limit",
+	"breaker.eql_sequence.overhead",
+	"breaker.eql_sequence.type",
+	"breaker.model_inference.limit",
+	"breaker.model_inference.overhead",
+	"breaker.model_inference.type",
+	"cluster.routing.allocation.enable",
+	"cluster.routing.allocation.same_shard.host",
+	"cluster.routing.allocation.total_shards_per_node",
+	"cluster.routing.allocation.node_concurrent_incoming_recoveries",
+	"cluster.routing.allocation.node_concurrent_outgoing_recoveries",
+	"cluster.routing.allocation.node_concurrent_recoveries",
+	"cluster.routing.allocation.node_initial_primaries_recoveries",
+	"cluster.routing.allocation.allow_rebalance",
+	"cluster.routing.rebalance.enable",
+	"cluster.routing.allocation.cluster_concurrent_rebalance",
+	"cluster.routing.allocation.type",
+	"cluster.routing.allocation.balance.threshold",
+	"cluster.routing.allocation.balance.shard",
+	"cluster.routing.allocation.balance.index",
+	"cluster.routing.allocation.balance.disk_usage",
+	"cluster.routing.allocation.balance.write_load",
+	"cluster.routing.allocation.disk.threshold_enabled",
+	"cluster.routing.allocation.disk.watermark.low",
+	"cluster.routing.allocation.disk.watermark.low.max_headroom",
+	"cluster.routing.allocation.disk.watermark.high",
+	"cluster.routing.allocation.disk.watermark.high.max_headroom",
+	"cluster.routing.allocation.disk.watermark.enable_for_single_data_node",
+	"cluster.routing.allocation.disk.watermark.flood_stage",
+	"cluster.routing.allocation.disk.watermark.flood_stage.max_headroom",
+	"cluster.routing.allocation.disk.watermark.flood_stage.frozen",
+	"cluster.routing.allocation.disk.watermark.flood_stage.frozen.max_headroom",
+	"cluster.info.update.interval",
+	"cluster.routing.allocation.awareness.attributes",
+	"cluster.routing.allocation.awareness.force.*",
+	"cluster.routing.allocation.include.{{attribute}}",
+	"cluster.routing.allocation.require.{{attribute}}",
+	"cluster.routing.allocation.exclude.{{attribute}}",
+	"cluster.routing.allocation.stats.cache.ttl",
+	"ccr.indices.recovery.max_bytes_per_sec",
+	"ccr.indices.recovery.max_concurrent_file_chunks",
+	"ccr.indices.recovery.chunk_size",
+	"ccr.indices.recovery.recovery_activity_timeout",
+	"ccr.indices.recovery.internal_action_timeout",
+	"data_streams.lifecycle.retention.max",
+	"data_streams.lifecycle.retention.default",
+	"data_streams.lifecycle.poll_interval",
+	"cluster.lifecycle.default.rollover",
+	"data_streams.lifecycle.target.merge.policy.merge_factor",
+	"data_streams.lifecycle.target.merge.policy.floor_segment",
+	"data_streams.lifecycle.signalling.error_retry_interval",
+	"data_streams.lifecycle.downsampling.max_indices_in_progress",
+	"dlm.frozen.transition.poll_interval",
+	"dlm.frozen.transition.thread_pool.size",
+	"dlm.frozen.transition.thread_pool.queue_size",
+	"dlm.frozen.cleanup.poll_interval",
+	"index.lifecycle.prefer_ilm",
+	"index.lifecycle.origination_date",
+	"index.dlm.frozen.created",
+	"discovery.seed_hosts",
+	"discovery.seed_providers",
+	"discovery.type",
+	"cluster.initial_master_nodes",
+	"discovery.cluster_formation_warning_timeout",
+	"discovery.find_peers_interval",
+	"discovery.probe.connect_timeout",
+	"discovery.probe.handshake_timeout",
+	"discovery.request_peers_timeout",
+	"discovery.find_peers_warning_timeout",
+	"discovery.seed_resolver.max_concurrent_resolvers",
+	"discovery.seed_resolver.timeout",
+	"cluster.auto_shrink_voting_configuration",
+	"cluster.election.duration",
+	"cluster.election.initial_timeout",
+	"cluster.election.max_timeout",
+	"cluster.fault_detection.follower_check.timeout",
+	"cluster.fault_detection.follower_check.retry_count",
+	"cluster.fault_detection.leader_check.interval",
+	"cluster.fault_detection.leader_check.timeout",
+	"cluster.fault_detection.leader_check.retry_count",
+	"cluster.follower_lag.timeout",
+	"cluster.max_voting_config_exclusions",
+	"cluster.publish.info_timeout",
+	"cluster.publish.timeout",
+	"cluster.discovery_configuration_check.interval",
+	"cluster.join_validation.cache_timeout",
+	"cluster.no_master_block",
+	"monitor.fs.health.enabled",
+	"monitor.fs.health.refresh_interval",
+	"monitor.fs.health.slow_path_logging_threshold",
+	"enrich.cache_size",
+	"enrich.coordinator_proxy.max_concurrent_requests",
+	"enrich.coordinator_proxy.max_lookups_per_request",
+	"enrich.coordinator_proxy.queue_capacity",
+	"enrich.fetch_size",
+	"enrich.max_force_merge_attempts",
+	"enrich.cleanup_period",
+	"enrich.max_concurrent_policy_executions",
+	"indices.fielddata.cache.size",
+	"health.master_history.has_master_lookup_timeframe",
+	"master_history.max_age",
+	"health.master_history.identity_changes_threshold",
+	"health.master_history.no_master_transitions_threshold",
+	"health.node.enabled",
+	"health.reporting.local.monitor.interval",
+	"health.ilm.max_time_on_action",
+	"health.ilm.max_time_on_step",
+	"health.ilm.max_retries_per_step",
+	"health.periodic_logger.enabled",
+	"health.periodic_logger.poll_interval",
+	"health.shard_capacity.unhealthy_threshold.yellow",
+	"health.shard_capacity.unhealthy_threshold.red",
+	"health.master_history.has_master_lookup_timeframe",
+	"master_history.max_age",
+	"health.master_history.identity_changes_threshold",
+	"health.master_history.no_master_transitions_threshold",
+	"health.node.enabled",
+	"health.reporting.local.monitor.interval",
+	"health.ilm.max_time_on_action",
+	"health.ilm.max_time_on_step",
+	"health.ilm.max_retries_per_step",
+	"health.periodic_logger.enabled",
+	"health.periodic_logger.poll_interval",
+	"health.shard_capacity.unhealthy_threshold.yellow",
+	"health.shard_capacity.unhealthy_threshold.red",
+	"indices.memory.index_buffer_size",
+	"indices.memory.min_index_buffer_size",
+	"indices.memory.max_index_buffer_size",
+	"indexing_pressure.memory.limit",
+	"xpack.ilm.enabled",
+	"indices.lifecycle.history_index_enabled",
+	"indices.lifecycle.poll_interval",
+	"indices.lifecycle.rollover.only_if_has_documents",
+	"index.lifecycle.indexing_complete",
+	"index.lifecycle.name",
+	"index.lifecycle.origination_date",
+	"index.lifecycle.parse_origination_date",
+	"index.lifecycle.step.wait_time_threshold",
+	"index.lifecycle.rollover_alias",
+	"action.auto_create_index",
+	"action.destructive_requires_name",
+	"cluster.indices.close.enable",
+	"stack.templates.enabled",
+	"xpack.profiling.enabled",
+	"xpack.profiling.templates.enabled",
+	"xpack.otel_data.registry.enabled",
+	"xpack.otel_data.histogram_field_type",
+	"reindex.remote.whitelist",
+	"reindex.remote.blocklist",
+	"cluster.reindex.pit.keep_alive",
+	"reindex.ssl.certificate",
+	"reindex.ssl.certificate_authorities",
+	"reindex.ssl.key",
+	"reindex.ssl.key_passphrase",
+	"reindex.ssl.keystore.key_password",
+	"reindex.ssl.keystore.password",
+	"reindex.ssl.keystore.path",
+	"reindex.ssl.keystore.type",
+	"reindex.ssl.secure_key_passphrase",
+	"reindex.ssl.keystore.secure_key_password",
+	"reindex.ssl.keystore.secure_password",
+	"reindex.ssl.truststore.password",
+	"reindex.ssl.truststore.path",
+	"reindex.ssl.truststore.secure_password",
+	"reindex.ssl.truststore.type",
+	"reindex.ssl.verification_mode",
+	"indices.recovery.max_bytes_per_sec",
+	"indices.recovery.max_concurrent_file_chunks",
+	"indices.recovery.max_concurrent_operations",
+	"indices.recovery.use_snapshots",
+	"indices.recovery.max_concurrent_snapshot_file_downloads",
+	"indices.recovery.max_concurrent_snapshot_file_downloads_per_node",
+	"node.bandwidth.recovery.disk.read",
+	"node.bandwidth.recovery.disk.write",
+	"node.bandwidth.recovery.network",
+	"node.bandwidth.recovery.factor.read",
+	"node.bandwidth.recovery.factor.write",
+	"node.bandwidth.recovery.operator.factor.read",
+	"node.bandwidth.recovery.operator.factor.write",
+	"node.bandwidth.recovery.operator.factor",
+	"node.bandwidth.recovery.operator.factor.max_overcommit",
+	"xpack.inference.query_timeout",
+	"xpack.inference.logging.reset_interval",
+	"xpack.inference.logging.wait_duration",
+	"xpack.inference.http.max_response_size",
+	"xpack.inference.http.max_total_connections",
+	"xpack.inference.http.max_route_connections",
+	"xpack.inference.http.connection_eviction_interval",
+	"xpack.inference.http.connection_eviction_max_idle_time",
+	"xpack.inference.http.request_executor.queue_capacity",
+	"xpack.inference.http.retry.initial_delay",
+	"xpack.inference.http.retry.max_delay_bound",
+	"xpack.inference.http.retry.timeout",
+	"xpack.inference.truncator.reduction_percentage",
+	"xpack.inference.endpoint.cache.enabled",
+	"xpack.inference.endpoint.cache.weight",
+	"xpack.inference.endpoint.cache.expiry_time",
+	"xpack.inference.oauth2.token_cache.enabled",
+	"xpack.inference.oauth2.token_cache.weight",
+	"xpack.inference.oauth2.token_cache.expiry_time",
+	"xpack.inference.ccm.cache.weight",
+	"xpack.inference.ccm.cache.expiry_time",
+	"xpack.license.self_generated.type",
+	"gateway.expected_data_nodes",
+	"gateway.recover_after_time",
+	"gateway.recover_after_data_nodes",
+	"node.roles: [ ml ]",
+	"xpack.ml.enabled",
+	"xpack.ml.inference_model.cache_size",
+	"xpack.ml.inference_model.time_to_live",
+	"xpack.ml.max_inference_processors",
+	"xpack.ml.max_machine_memory_percent",
+	"xpack.ml.max_model_memory_limit",
+	"xpack.ml.max_open_jobs",
+	"xpack.ml.nightly_maintenance_requests_per_second",
+	"xpack.ml.results_index_rollover_max_size",
+	"xpack.ml.anomalies.heal_reindexed_v7.enabled",
+	"xpack.ml.idle_job_auto_close_timeout",
+	"xpack.ml.node_concurrent_job_allocations",
+	"xpack.ml.enable_config_migration",
+	"xpack.ml.max_anomaly_records",
+	"xpack.ml.max_lazy_ml_nodes",
+	"xpack.ml.max_ml_node_size",
+	"xpack.ml.trained_models.graph_validation_enabled",
+	"xpack.ml.model_repository",
+	"xpack.ml.persist_results_max_retries",
+	"xpack.ml.process_connect_timeout",
+	"xpack.ml.use_auto_machine_memory_percent",
+	"xpack.monitoring.enabled",
+	"xpack.monitoring.collection.enabled",
+	"xpack.monitoring.collection.interval",
+	"xpack.monitoring.elasticsearch.collection.enabled",
+	"xpack.monitoring.collection.cluster.stats.timeout",
+	"xpack.monitoring.collection.node.stats.timeout",
+	"xpack.monitoring.collection.indices",
+	"xpack.monitoring.collection.index.stats.timeout",
+	"xpack.monitoring.collection.index.recovery.active_only",
+	"xpack.monitoring.collection.index.recovery.timeout",
+	"xpack.monitoring.history.duration",
+	"xpack.monitoring.exporters",
+	"cluster_alerts.management.enabled",
+	"wait_master.timeout",
+	"auth.username",
+	"auth.secure_password",
+	"connection.timeout",
+	"connection.read_timeout",
+	"proxy.base_path",
+	"index.name.time_format",
+	"cluster_alerts.management.enabled",
+	"cluster_alerts.management.blacklist",
+	"xpack.monitoring.exporters.$NAME.ssl.supported_protocols",
+	"xpack.monitoring.exporters.$NAME.ssl.verification_mode",
+	"xpack.monitoring.exporters.$NAME.ssl.cipher_suites",
+	"xpack.monitoring.exporters.$NAME.ssl.key",
+	"xpack.monitoring.exporters.$NAME.ssl.key_passphrase",
+	"xpack.monitoring.exporters.$NAME.ssl.secure_key_passphrase",
+	"xpack.monitoring.exporters.$NAME.ssl.certificate",
+	"xpack.monitoring.exporters.$NAME.ssl.certificate_authorities",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.path",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.secure_password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.key_password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.secure_key_password",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.path",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.password",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.secure_password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.path",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.type",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.secure_password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.key_password",
+	"xpack.monitoring.exporters.$NAME.ssl.keystore.secure_key_password",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.path",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.type",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.password",
+	"xpack.monitoring.exporters.$NAME.ssl.truststore.secure_password",
+	"network.host",
+	"http.port",
+	"transport.port",
+	"remote_cluster.port",
+	"0.0.0.0",
+	"network.bind_host",
+	"network.publish_host",
+	"network.tcp.keep_alive",
+	"network.tcp.keep_idle",
+	"network.tcp.keep_interval",
+	"network.tcp.keep_count",
+	"network.tcp.no_delay",
+	"network.tcp.reuse_address",
+	"network.tcp.send_buffer_size",
+	"network.tcp.receive_buffer_size",
+	"http.host",
+	"http.bind_host",
+	"http.publish_host",
+	"http.publish_port",
+	"http.max_content_length",
+	"http.max_initial_line_length",
+	"http.max_header_size",
+	"http.compression",
+	"http.compression_level",
+	"http.cors.enabled",
+	"http.detailed_errors.enabled",
+	"http.pipelining.max_events",
+	"http.max_warning_header_count",
+	"http.max_warning_header_size",
+	"http.tcp.keep_alive",
+	"http.tcp.keep_idle",
+	"http.tcp.keep_interval",
+	"http.tcp.keep_count",
+	"http.tcp.no_delay",
+	"http.tcp.reuse_address",
+	"http.tcp.send_buffer_size",
+	"http.tcp.receive_buffer_size",
+	"http.client_stats.enabled",
+	"http.client_stats.closed_channels.max_count",
+	"http.client_stats.closed_channels.max_age",
+	"transport.host",
+	"transport.bind_host",
+	"transport.publish_host",
+	"transport.publish_port",
+	"transport.connect_timeout",
+	"transport.compress",
+	"transport.compression_scheme",
+	"transport.tcp.keep_alive",
+	"transport.tcp.keep_idle",
+	"transport.tcp.keep_interval",
+	"transport.tcp.keep_count",
+	"transport.tcp.no_delay",
+	"transport.tcp.reuse_address",
+	"transport.tcp.send_buffer_size",
+	"transport.tcp.receive_buffer_size",
+	"transport.ping_schedule",
+	"remote_cluster_server.enabled",
+	"remote_cluster.host",
+	"remote_cluster.bind_host",
+	"remote_cluster.publish_host",
+	"remote_cluster.publish_port",
+	"remote_cluster.tcp.keep_alive",
+	"remote_cluster.tcp.keep_idle",
+	"remote_cluster.tcp.keep_interval",
+	"remote_cluster.tcp.keep_count",
+	"remote_cluster.tcp.no_delay",
+	"remote_cluster.tcp.reuse_address",
+	"remote_cluster.tcp.send_buffer_size",
+	"remote_cluster.tcp.receive_buffer_size",
+	"org.elasticsearch.transport.InboundHandler",
+	"org.elasticsearch.transport.OutboundHandler",
+	"org.elasticsearch.common.network.ThreadWatchdog",
+	"network.thread.watchdog.interval",
+	"network.thread.watchdog.quiet_time",
+	"indices.queries.cache.size",
+	"index.queries.cache.enabled",
+	"vectors.indexing.use_gpu",
+	"cluster.remote.initial_connect_timeout",
+	"cluster.remote.node.attr",
+	"cluster.remote.signing.certificate_authorities",
+	"cluster.remote.signing.truststore.path",
+	"cluster.remote.signing.truststore.secure_password",
+	"cluster.remote.signing.truststore.algorithm",
+	"cluster.remote.signing.truststore.type",
+	"cluster.remote.signing.diagnose.trust",
+	"indices.query.bool.max_clause_count",
+	"search.max_buckets",
+	"search.aggs.only_allowed_metric_scripts",
+	"search.aggs.allowed_inline_metric_scripts",
+	"search.aggs.allowed_stored_metric_scripts",
+	"indices.query.bool.max_nested_depth",
+	"search.task_watchdog.enabled",
+	"search.task_watchdog.coordinator_threshold",
+	"search.task_watchdog.data_node_threshold",
+	"search.task_watchdog.interval",
+	"search.task_watchdog.cooldown_period",
+	"xpack.security.enabled",
+	"xpack.security.autoconfiguration.enabled",
+	"xpack.security.enrollment.enabled",
+	"xpack.security.hide_settings",
+	"xpack.security.fips_mode.enabled",
+	"xpack.security.fips_mode.required_providers",
+	"xpack.security.authc.password_hashing.algorithm",
+	"xpack.security.authc.anonymous.username",
+	"xpack.security.authc.anonymous.roles",
+	"xpack.security.authc.anonymous.authz_exception",
+	"xpack.security.automata.max_determinized_states",
+	"xpack.security.automata.cache.enabled",
+	"xpack.security.automata.cache.size",
+	"xpack.security.automata.cache.ttl",
+	"xpack.security.dls_fls.enabled",
+	"xpack.security.dls.bitset.cache.ttl",
+	"xpack.security.dls.bitset.cache.size",
+	"xpack.security.authc.token.enabled",
+	"xpack.security.authc.token.timeout",
+	"xpack.security.authc.api_key.enabled",
+	"xpack.security.authc.api_key.cache.ttl",
+	"xpack.security.authc.api_key.cache.max_keys",
+	"xpack.security.authc.api_key.cache.hash_algo",
+	"xpack.security.authc.api_key.delete.retention_period",
+	"xpack.security.authc.api_key.delete.interval",
+	"xpack.security.authc.api_key.delete.timeout",
+	"xpack.security.authc.api_key.hashing.algorithm",
+	"xpack.security.authc.realms.saml.*",
+	"xpack.security.authc.realms.oidc.*",
+	"xpack.security.authc.realms.kerberos.*",
+	"xpack.security.authc.realms.jwt.*",
+	"cache.ttl",
+	"cache.max_users",
+	"cache.hash_algo",
+	"authentication.enabled",
+	"cache.ttl",
+	"cache.max_users",
+	"cache.hash_algo",
+	"authentication.enabled",
+	"load_balance.type",
+	"load_balance.cache_ttl",
+	"user_search.base_dn",
+	"user_search.scope",
+	"user_search.filter",
+	"user_search.attribute",
+	"user_search.pool.enabled",
+	"user_search.pool.size",
+	"user_search.pool.initial_size",
+	"user_search.pool.health_check.enabled",
+	"user_search.pool.health_check.dn",
+	"user_search.pool.health_check.interval",
+	"group_search.base_dn",
+	"group_search.scope",
+	"group_search.filter",
+	"group_search.user_attribute",
+	"files.role_mapping",
+	"timeout.tcp_connect",
+	"timeout.tcp_read",
+	"timeout.response",
+	"timeout.ldap_search",
+	"ssl.key",
+	"ssl.key_passphrase",
+	"ssl.secure_key_passphrase",
+	"ssl.certificate",
+	"ssl.certificate_authorities",
+	"ssl.keystore.path",
+	"ssl.keystore.type",
+	"ssl.keystore.password",
+	"ssl.keystore.secure_password",
+	"ssl.keystore.key_password",
+	"ssl.keystore.secure_key_password",
+	"ssl.truststore.path",
+	"ssl.truststore.password",
+	"ssl.truststore.secure_password",
+	"ssl.truststore.type",
+	"ssl.verification_mode",
+	"ssl.supported_protocols",
+	"ssl.cipher_suites",
+	"cache.ttl",
+	"cache.max_users",
+	"cache.hash_algo",
+	"authentication.enabled",
+	"load_balance.type",
+	"load_balance.cache_ttl",
+	"files.role_mapping",
+	"user_search.base_dn",
+	"user_search.scope",
+	"user_search.filter",
+	"user_search.upn_filter",
+	"user_search.down_level_filter",
+	"user_search.pool.enabled",
+	"user_search.pool.size",
+	"user_search.pool.initial_size",
+	"user_search.pool.health_check.enabled",
+	"user_search.pool.health_check.dn",
+	"user_search.pool.health_check.interval",
+	"group_search.base_dn",
+	"group_search.scope",
+	"timeout.tcp_connect",
+	"timeout.tcp_read",
+	"timeout.response",
+	"timeout.ldap_search",
+	"ssl.certificate",
+	"ssl.certificate_authorities",
+	"ssl.key",
+	"ssl.key_passphrase",
+	"ssl.secure_key_passphrase",
+	"ssl.keystore.key_password",
+	"ssl.keystore.secure_key_password",
+	"ssl.keystore.password",
+	"ssl.secure_keystore.password",
+	"ssl.keystore.path",
+	"ssl.keystore.type",
+	"ssl.truststore.password",
+	"ssl.truststore.secure_password",
+	"ssl.truststore.path",
+	"ssl.truststore.type",
+	"ssl.verification_mode",
+	"ssl.supported_protocols",
+	"ssl.cipher_suites",
+	"cache.ttl",
+	"cache.max_users",
+	"cache.hash_algo",
+	"authentication.enabled",
+	"truststore.algorithm",
+	"truststore.password",
+	"truststore.secure_password",
+	"truststore.path",
+	"files.role_mapping",
+	"cache.ttl",
+	"cache.max_users",
+	"delegation.enabled",
+	"idp.entity_id",
+	"idp.metadata.path",
+	"idp.metadata.http.fail_on_error",
+	"idp.metadata.http.connect_timeout",
+	"idp.metadata.http.read_timeout",
+	"idp.metadata.http.refresh",
+	"idp.metadata.http.minimum_refresh",
+	"idp.use_single_logout",
+	"sp.entity_id",
+	"sp.acs",
+	"sp.logout",
+	"attributes.principal",
+	"attributes.groups",
+	"attributes.name",
+	"attributes.mail",
+	"attributes.dn",
+	"attribute_patterns.principal",
+	"attribute_patterns.groups",
+	"attribute_patterns.name",
+	"attribute_patterns.mail",
+	"attribute_patterns.dn",
+	"attribute_delimiters.groups",
+	"nameid.allow_create",
+	"nameid.sp_qualifier",
+	"signing.saml_messages",
+	"signing.key",
+	"signing.secure_key_passphrase",
+	"signing.certificate",
+	"signing.keystore.path",
+	"signing.keystore.type",
+	"signing.keystore.alias",
+	"signing.keystore.secure_password",
+	"signing.keystore.secure_key_password",
+	"encryption.key",
+	"encryption.secure_key_passphrase",
+	"encryption.certificate",
+	"encryption.keystore.path",
+	"encryption.keystore.type",
+	"encryption.keystore.alias",
+	"encryption.keystore.secure_password",
+	"encryption.keystore.secure_key_password",
+	"ssl.key",
+	"ssl.key_passphrase",
+	"ssl.secure_key_passphrase",
+	"ssl.certificate",
+	"ssl.certificate_authorities",
+	"ssl.keystore.path",
+	"ssl.keystore.type",
+	"ssl.keystore.password",
+	"ssl.keystore.secure_password",
+	"ssl.keystore.key_password",
+	"ssl.keystore.secure_key_password",
+	"ssl.truststore.path",
+	"ssl.truststore.type",
+	"ssl.truststore.password",
+	"ssl.truststore.secure_password",
+	"ssl.verification_mode",
+	"ssl.supported_protocols",
+	"ssl.cipher_suites",
+	"keytab.path",
+	"krb.debug",
+	"cache.ttl",
+	"cache.max_users",
+	"op.issuer",
+	"op.authorization_endpoint",
+	"op.token_endpoint",
+	"op.userinfo_endpoint",
+	"op.endsession_endpoint",
+	"op.jwkset_path",
+	"rp.client_id",
+	"rp.client_secret",
+	"rp.client_auth_method",
+	"rp.client_auth_jwt_signature_algorithm",
+	"rp.redirect_uri",
+	"rp.response_type",
+	"rp.signature_algorithm",
+	"rp.requested_scopes",
+	"rp.post_logout_redirect_uri",
+	"claims.principal",
+	"claims.groups",
+	"claims.name",
+	"claims.mail",
+	"claims.dn",
+	"claim_patterns.principal",
+	"claim_patterns.groups",
+	"claim_patterns.name",
+	"claim_patterns.mail",
+	"claim_patterns.dn",
+	"http.proxy.host",
+	"http.proxy.scheme",
+	"http.proxy.port",
+	"http.connect_timeout",
+	"http.connection_read_timeout",
+	"http.socket_timeout",
+	"http.max_connections",
+	"http.max_endpoint_connections",
+	"http.tcp.keep_alive",
+	"http.connection_pool_ttl",
+	"ssl.key",
+	"ssl.key_passphrase",
+	"ssl.secure_key_passphrase",
+	"ssl.certificate",
+	"ssl.certificate_authorities",
+	"ssl.keystore.path",
+	"ssl.keystore.type",
+	"ssl.keystore.password",
+	"ssl.keystore.secure_password",
+	"ssl.keystore.key_password",
+	"ssl.keystore.secure_key_password",
+	"ssl.truststore.path",
+	"ssl.truststore.type",
+	"ssl.truststore.password",
+	"ssl.truststore.secure_password",
+	"ssl.verification_mode",
+	"ssl.supported_protocols",
+	"ssl.cipher_suites",
+	"fallback_claims.sub",
+	"fallback_claims.aud",
+	"claims.dn",
+	"claim_patterns.dn",
+	"claims.groups",
+	"claim_patterns.group",
+	"claims.mail",
+	"claim_patterns.mail",
+	"claims.name",
+	"claim_patterns.name",
+	"claims.principal",
+	"claim_patterns.principal",
+	"client_authentication.type",
+	"client_authentication.shared_secret",
+	"client_authentication.rotation_grace_period",
+	"http.proxy.host",
+	"http.proxy.scheme",
+	"http.proxy.port",
+	"http.connect_timeout",
+	"http.connection_read_timeout",
+	"http.socket_timeout",
+	"http.max_connections",
+	"http.max_endpoint_connections",
+	"jwt.cache.size",
+	"jwt.cache.ttl",
+	"pkc_jwkset_reload.enabled",
+	"pkc_jwkset_reload.file_interval",
+	"pkc_jwkset_reload.url_interval_min",
+	"pkc_jwkset_reload.url_interval_max",
+	"ssl.key",
+	"ssl.key_passphrase",
+	"ssl.secure_key_passphrase",
+	"ssl.certificate",
+	"ssl.certificate_authorities",
+	"ssl.keystore.path",
+	"ssl.keystore.type",
+	"ssl.keystore.password",
+	"ssl.keystore.secure_password",
+	"ssl.keystore.key_password",
+	"ssl.keystore.secure_key_password",
+	"ssl.truststore.path",
+	"ssl.truststore.type",
+	"ssl.truststore.password",
+	"ssl.truststore.secure_password",
+	"ssl.verification_mode",
+	"ssl.supported_protocols",
+	"ssl.cipher_suites",
+	"xpack.security.ssl.diagnose.trust",
+	"xpack.security.http.ssl.enabled",
+	"xpack.security.http.ssl.supported_protocols",
+	"xpack.security.http.ssl.client_authentication",
+	"xpack.security.http.ssl.verification_mode",
+	"xpack.security.http.ssl.cipher_suites",
+	"xpack.security.http.ssl.key",
+	"xpack.security.http.ssl.key_passphrase",
+	"xpack.security.http.ssl.secure_key_passphrase",
+	"xpack.security.http.ssl.certificate",
+	"xpack.security.http.ssl.certificate_authorities",
+	"xpack.security.http.ssl.keystore.path",
+	"xpack.security.http.ssl.keystore.password",
+	"xpack.security.http.ssl.keystore.secure_password",
+	"xpack.security.http.ssl.keystore.key_password",
+	"xpack.security.http.ssl.keystore.secure_key_password",
+	"xpack.security.http.ssl.truststore.path",
+	"xpack.security.http.ssl.truststore.password",
+	"xpack.security.http.ssl.truststore.secure_password",
+	"xpack.security.http.ssl.keystore.path",
+	"xpack.security.http.ssl.keystore.type",
+	"xpack.security.http.ssl.keystore.password",
+	"xpack.security.http.ssl.keystore.secure_password",
+	"xpack.security.http.ssl.keystore.key_password",
+	"xpack.security.http.ssl.keystore.secure_key_password",
+	"xpack.security.http.ssl.truststore.path",
+	"xpack.security.http.ssl.truststore.type",
+	"xpack.security.http.ssl.truststore.password",
+	"xpack.security.http.ssl.truststore.secure_password",
+	"xpack.security.transport.ssl.enabled",
+	"xpack.security.transport.ssl.supported_protocols",
+	"xpack.security.transport.ssl.client_authentication",
+	"xpack.security.transport.ssl.verification_mode",
+	"xpack.security.transport.ssl.cipher_suites",
+	"xpack.security.transport.ssl.trust_restrictions.x509_fields",
+	"xpack.security.transport.ssl.handshake_timeout",
+	"xpack.security.transport.ssl.key",
+	"xpack.security.transport.ssl.key_passphrase",
+	"xpack.security.transport.ssl.secure_key_passphrase",
+	"xpack.security.transport.ssl.certificate",
+	"xpack.security.transport.ssl.certificate_authorities",
+	"xpack.security.loginAssistanceMessage",
+	"xpack.security.transport.ssl.keystore.path",
+	"xpack.security.transport.ssl.keystore.password",
+	"xpack.security.transport.ssl.keystore.secure_password",
+	"xpack.security.transport.ssl.keystore.key_password",
+	"xpack.security.transport.ssl.keystore.secure_key_password",
+	"xpack.security.transport.ssl.truststore.path",
+	"xpack.security.transport.ssl.truststore.password",
+	"xpack.security.transport.ssl.truststore.secure_password",
+	"xpack.security.transport.ssl.keystore.path",
+	"xpack.security.transport.ssl.keystore.type",
+	"xpack.security.transport.ssl.keystore.password",
+	"xpack.security.transport.ssl.keystore.secure_password",
+	"xpack.security.transport.ssl.keystore.key_password",
+	"xpack.security.transport.ssl.keystore.secure_key_password",
+	"xpack.security.transport.ssl.truststore.path",
+	"xpack.security.transport.ssl.truststore.type",
+	"xpack.security.transport.ssl.truststore.password",
+	"xpack.security.transport.ssl.truststore.secure_password",
+	"xpack.security.remote_cluster_server.ssl.enabled",
+	"xpack.security.remote_cluster_server.ssl.supported_protocols",
+	"xpack.security.remote_cluster_server.ssl.client_authentication",
+	"xpack.security.remote_cluster_server.ssl.verification_mode",
+	"xpack.security.remote_cluster_server.ssl.cipher_suites",
+	"xpack.security.remote_cluster_server.ssl.handshake_timeout",
+	"xpack.security.remote_cluster_server.ssl.key",
+	"xpack.security.remote_cluster_server.ssl.secure_key_passphrase",
+	"xpack.security.remote_cluster_server.ssl.certificate",
+	"xpack.security.remote_cluster_server.ssl.certificate_authorities",
+	"xpack.security.remote_cluster_server.ssl.keystore.path",
+	"xpack.security.remote_cluster_server.ssl.keystore.secure_password",
+	"xpack.security.remote_cluster_server.ssl.keystore.secure_key_password",
+	"xpack.security.remote_cluster_server.ssl.truststore.path",
+	"xpack.security.remote_cluster_server.ssl.truststore.secure_password",
+	"xpack.security.remote_cluster_server.ssl.keystore.path",
+	"xpack.security.remote_cluster_server.ssl.keystore.type",
+	"xpack.security.remote_cluster_server.ssl.keystore.secure_password",
+	"xpack.security.remote_cluster_server.ssl.keystore.secure_key_password",
+	"xpack.security.remote_cluster_server.ssl.truststore.path",
+	"xpack.security.remote_cluster_server.ssl.truststore.type",
+	"xpack.security.remote_cluster_server.ssl.truststore.secure_password",
+	"xpack.security.remote_cluster_client.ssl.enabled",
+	"xpack.security.remote_cluster_client.ssl.supported_protocols",
+	"xpack.security.remote_cluster_client.ssl.verification_mode",
+	"xpack.security.remote_cluster_client.ssl.cipher_suites",
+	"xpack.security.remote_cluster_client.ssl.handshake_timeout",
+	"xpack.security.remote_cluster_client.ssl.key",
+	"xpack.security.remote_cluster_client.ssl.secure_key_passphrase",
+	"xpack.security.remote_cluster_client.ssl.certificate",
+	"xpack.security.remote_cluster_client.ssl.certificate_authorities",
+	"xpack.security.remote_cluster_client.ssl.keystore.path",
+	"xpack.security.remote_cluster_client.ssl.keystore.secure_password",
+	"xpack.security.remote_cluster_client.ssl.keystore.secure_key_password",
+	"xpack.security.remote_cluster_client.ssl.truststore.path",
+	"xpack.security.remote_cluster_client.ssl.truststore.secure_password",
+	"xpack.security.remote_cluster_client.ssl.keystore.path",
+	"xpack.security.remote_cluster_client.ssl.keystore.type",
+	"xpack.security.remote_cluster_client.ssl.keystore.secure_password",
+	"xpack.security.remote_cluster_client.ssl.keystore.secure_key_password",
+	"xpack.security.remote_cluster_client.ssl.truststore.path",
+	"xpack.security.remote_cluster_client.ssl.truststore.type",
+	"xpack.security.remote_cluster_client.ssl.truststore.secure_password",
+	"xpack.security.transport.filter.allow",
+	"xpack.security.transport.filter.deny",
+	"xpack.security.http.filter.allow",
+	"xpack.security.http.filter.deny",
+	"transport.profiles.$PROFILE.xpack.security.filter.allow",
+	"transport.profiles.$PROFILE.xpack.security.filter.deny",
+	"xpack.security.remote_cluster.filter.allow",
+	"xpack.security.remote_cluster.filter.deny",
+	"indices.requests.cache.size",
+	"indices.requests.cache.expire",
+	"snapshot.max_concurrent_operations",
+	"repositories.default_repository",
+	"slm.history_index_enabled",
+	"slm.retention_schedule",
+	"slm.retention_duration",
+	"slm.health.failed_snapshot_warn_threshold",
+	"node.roles: [ transform ]",
+	"xpack.transform.enabled",
+	"xpack.transform.num_transform_failure_retries",
+	"xpack.watcher.enabled",
+	"xpack.watcher.encrypt_sensitive_data",
+	"xpack.watcher.encryption_key",
+	"xpack.watcher.max.history.record.size",
+	"xpack.watcher.trigger.schedule.engine",
+	"xpack.watcher.history.cleaner_service.enabled",
+	"xpack.http.proxy.host",
+	"xpack.http.proxy.port",
+	"xpack.http.proxy.scheme",
+	"xpack.http.default_connection_timeout",
+	"xpack.http.default_read_timeout",
+	"xpack.http.tcp.keep_alive",
+	"xpack.http.connection_pool_ttl",
+	"xpack.http.max_response_size",
+	"xpack.http.whitelist",
+	"xpack.http.ssl.supported_protocols",
+	"xpack.http.ssl.verification_mode",
+	"xpack.http.ssl.cipher_suites",
+	"xpack.http.ssl.key",
+	"xpack.http.ssl.secure_key_passphrase",
+	"xpack.http.ssl.certificate",
+	"xpack.http.ssl.certificate_authorities",
+	"xpack.http.ssl.keystore.path",
+	"xpack.http.ssl.keystore.secure_password",
+	"xpack.http.ssl.keystore.secure_key_password",
+	"xpack.http.ssl.truststore.path",
+	"xpack.http.ssl.truststore.secure_password",
+	"xpack.http.ssl.keystore.path",
+	"xpack.http.ssl.keystore.type",
+	"xpack.http.ssl.keystore.secure_password",
+	"xpack.http.ssl.keystore.secure_key_password",
+	"xpack.http.ssl.truststore.path",
+	"xpack.http.ssl.truststore.type",
+	"xpack.http.ssl.truststore.secure_password",
+	"xpack.notification.email.default_account",
+	"xpack.notification.email.recipient_allowlist",
+	"xpack.notification.email.account",
+	"xpack.notification.email.account.domain_allowlist",
+	"email_defaults.*",
+	"smtp.auth",
+	"smtp.host",
+	"smtp.port",
+	"smtp.user",
+	"smtp.secure_password",
+	"smtp.starttls.enable",
+	"smtp.starttls.required",
+	"smtp.ssl.trust",
+	"smtp.timeout",
+	"smtp.connection_timeout",
+	"smtp.write_timeout",
+	"smtp.local_address",
+	"smtp.local_port",
+	"smtp.send_partial",
+	"smtp.wait_on_quit",
+	"xpack.notification.email.html.sanitization.allow",
+	"xpack.notification.email.html.sanitization.disallow",
+	"xpack.notification.email.html.sanitization.enabled",
+	"xpack.notification.email.ssl.supported_protocols",
+	"xpack.notification.email.ssl.verification_mode",
+	"xpack.notification.email.ssl.cipher_suites",
+	"xpack.notification.email.ssl.key",
+	"xpack.notification.email.ssl.secure_key_passphrase",
+	"xpack.notification.email.ssl.certificate",
+	"xpack.notification.email.ssl.certificate_authorities",
+	"xpack.notification.email.ssl.keystore.path",
+	"xpack.notification.email.ssl.keystore.secure_password",
+	"xpack.notification.email.ssl.keystore.secure_key_password",
+	"xpack.notification.email.ssl.truststore.path",
+	"xpack.notification.email.ssl.truststore.secure_password",
+	"xpack.notification.email.ssl.keystore.path",
+	"xpack.notification.email.ssl.keystore.type",
+	"xpack.notification.email.ssl.keystore.secure_password",
+	"xpack.notification.email.ssl.keystore.secure_key_password",
+	"xpack.notification.email.ssl.truststore.path",
+	"xpack.notification.email.ssl.truststore.type",
+	"xpack.notification.email.ssl.truststore.secure_password",
+	"xpack.notification.slack",
+	"xpack.notification.slack.default_account",
+	"xpack.notification.slack.account",
+	"xpack.notification.jira.default_account",
+	"xpack.notification.jira.account",
+	"xpack.notification.pagerduty",
+	"xpack.notification.pagerduty.default_account",
+	"xpack.notification.pagerduty.account",
+	"xpack.notification.webhook.additional_token_enabled",
+}

pkg/es/cluster_util.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"fmt"
 	"regexp"
-	"strconv"
 	"strings"
 
 	"codeberg.org/scip/esctl/pkg/cfg"
@@ -330,44 +329,3 @@ func splitArg(arg string) (string, string) {
 		return parts[0], parts[1]
 	}
 }
-
-// recursively traverse  the raw  settings hash and  build a  flat map
-// consisting of the translated path and its value.
-//
-// e.g.
-// logger:
-//
-//	org:
-//	  elasticsearch:
-//	    transport:
-//	      OutboundHandler: "ERROR"
-//
-// gets:
-//
-// logger.org.elasticsearch.transport.OutboundHandler: "ERROR"
-func getJsonPath(paths map[string]string, raw map[string]any, topic string) map[string]string {
-	for name, data := range raw {
-		path := topic + "." + name
-
-		switch value := data.(type) {
-		case string:
-			paths[path] = value
-		case *string:
-			paths[path] = *value
-		case int:
-			paths[path] = strconv.Itoa(value)
-		case *int:
-			paths[path] = strconv.Itoa(*value)
-		case map[string]any:
-			paths = getJsonPath(paths, value, path)
-		case []any:
-			val := []string{}
-			for _, item := range value {
-				val = append(val, fmt.Sprintf("%v", item))
-			}
-			paths[path] = strings.Join(val, ",")
-		}
-	}
-
-	return paths
-}

pkg/es/index_template_settings.go

@@ -28,7 +28,7 @@ type Tpl struct {
 }
 
 func getIndexTemplateSettings(conf *cfg.Config, tplname string, table *printer.Table) error {
-	raw, err := CallAPI(conf, "GET", "/_index_template/"+tplname, "")
+	raw, err := CallAPI(conf, "GET", "/_index_template/"+tplname+"?flat_settings", "")
 	if err != nil {
 		return err
 	}
@@ -39,9 +39,11 @@ func getIndexTemplateSettings(conf *cfg.Config, tplname string, table *printer.T
 	}
 
 	if conf.Debug {
-		if err := prettyfiJson(conf, raw); err != nil {
+		output, err := prettyfiJson(conf, raw)
+		if err != nil {
 			return err
 		}
+		fmt.Println(output)
 	}
 
 	if len(data.IndexTemplates) == 0 {
@@ -50,11 +52,7 @@ func getIndexTemplateSettings(conf *cfg.Config, tplname string, table *printer.T
 
 	tpl := data.IndexTemplates[0].IndexTemplate.Template.Settings
 	for topic, val := range tpl {
-		paths := getJsonPath(map[string]string{}, val.(map[string]any), topic)
+		table.Entries = append(table.Entries, []string{topic, fmt.Sprintf("%v", val)})
-
-		for setting, value := range paths {
-			table.Entries = append(table.Entries, []string{setting, fmt.Sprintf("%v", value)})
-		}
 	}
 
 	return nil

pkg/es/license.go

@@ -0,0 +1,59 @@
+/*
+Copyright © 2026 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+package es
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+
+	"codeberg.org/scip/esctl/pkg/cfg"
+	"codeberg.org/scip/esctl/pkg/printer"
+)
+
+func LicenseShow(conf *cfg.Config) error {
+	res, err := conf.DefaultCluster.ES().License.Get().
+		Do(context.Background())
+	if err != nil {
+		return fmt.Errorf("failed to get license: %s", esErrorString(err))
+	}
+
+	slog.Debug("license show", "license", res)
+
+	table := printer.NewTableEmpty(conf).WithHeaders("license setting", "value")
+
+	lic := res.License
+
+	var maxnodes = "infinite"
+
+	if lic.MaxNodes != nil {
+		maxnodes = fmt.Sprintf("%d", *lic.MaxNodes)
+	}
+
+	table.Entries = [][]string{
+		{"UID", lic.Uid},
+		{"Issued to", lic.IssuedTo},
+		{"Expires", lic.ExpiryDate.(string)},
+		{"Issued", lic.IssueDate.(string)},
+		{"Max nodes", maxnodes},
+		{"Max resource units", fmt.Sprintf("%d", *lic.MaxResourceUnits)},
+		{"Type", lic.Type.Name},
+		{"Status", lic.Status.Name},
+	}
+
+	return table.Print()
+}

pkg/printer/table.go

@@ -53,6 +53,24 @@ func NewTable(conf *cfg.Config, columns, rows int) *Table {
 	return &table
 }
 
+func NewTableEmpty(conf *cfg.Config) *Table {
+	table := Table{Mode: conf.Output, maxwidth: cfg.GetTermWidth()}
+	table.alignInts = conf.AlignInts
+	return &table
+}
+
+func (table *Table) WithHeaders(headers ...string) *Table {
+	count := len(headers)
+
+	table.Entries = [][]string{}
+	table.lenHeaders = make([]int, count)
+	table.Headers = make([]string, count)
+
+	table.Addheaders(headers...)
+
+	return table
+}
+
 func (data *Table) Print() error {
 	switch data.Mode {
 	case "markdown", "md":
@@ -157,7 +175,7 @@ func (data *Table) PrintTSV() error {
 		for idx, entry := range entries {
 			length := visibleLen(entry)
 
-			if length+currentWidth > data.maxwidth {
+			if length+currentWidth > data.maxwidth && data.maxwidth-currentWidth > 1 {
 				// text is too wide to be put into one line, wrap it
 				wrapper := wordwrap.Wrapper(data.maxwidth-currentWidth, false)
 				wrapped := wrapper(entry)