Backport of #23671 Added synopsis for operator root and operator gossip command. into release/1.9.x

.changelog/23671.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+cli: Added synopsis for `operator root` and `operator gossip` command
+```

command/commands.go

@@ -731,6 +731,11 @@ func Commands(metaPtr *Meta, agentUi cli.Ui) map[string]cli.CommandFactory {
 				Meta: meta,
 			}, nil
 		},
+		"operator gossip": func() (cli.Command, error) {
+			return &OperatorGossipCommand{
+				Meta: meta,
+			}, nil
+		},
 		"operator gossip keyring": func() (cli.Command, error) {
 			return &OperatorGossipKeyringCommand{
 				Meta: meta,
@@ -819,6 +824,11 @@ func Commands(metaPtr *Meta, agentUi cli.Ui) map[string]cli.CommandFactory {
 				Meta: meta,
 			}, nil
 		},
+		"operator root": func() (cli.Command, error) {
+			return &OperatorRootCommand{
+				Meta: meta,
+			}, nil
+		},
 		"operator root keyring": func() (cli.Command, error) {
 			return &OperatorRootKeyringCommand{
 				Meta: meta,

command/operator_gossip.go

@@ -0,0 +1,33 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
+
+package command
+
+import (
+	"strings"
+
+	"github.com/mitchellh/cli"
+)
+
+type OperatorGossipCommand struct {
+	Meta
+}
+
+func (*OperatorGossipCommand) Help() string {
+	helpText := `
+Usage: nomad operator gossip <subcommand> [options] [args]
+	
+  This command is accessed by using one of the subcommands below.
+`
+	return strings.TrimSpace(helpText)
+}
+
+func (*OperatorGossipCommand) Synopsis() string {
+	return "Provides access to the Gossip protocol"
+}
+
+func (f *OperatorGossipCommand) Name() string { return "operator gossip" }
+
+func (f *OperatorGossipCommand) Run(_ []string) int {
+	return cli.RunResultHelp
+}

command/operator_root.go

@@ -0,0 +1,34 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
+
+package command
+
+import (
+	"strings"
+
+	"github.com/mitchellh/cli"
+)
+
+type OperatorRootCommand struct {
+	Meta
+}
+
+func (*OperatorRootCommand) Help() string {
+	helpText := `
+Usage: nomad operator root <subcommand> [options] [args]
+
+  This command is accessed by using one of the subcommands below.
+`
+
+	return strings.TrimSpace(helpText)
+}
+
+func (*OperatorRootCommand) Synopsis() string {
+	return "Provides access to root encryption keys"
+}
+
+func (f *OperatorRootCommand) Name() string { return "operator root" }
+
+func (f *OperatorRootCommand) Run(_ []string) int {
+	return cli.RunResultHelp
+}