Add "operator" subcommand

command/operator.go

@@ -0,0 +1,47 @@
+package command
+
+import (
+	"strings"
+
+	"github.com/mitchellh/cli"
+)
+
+var _ cli.Command = (*OperatorCommand)(nil)
+
+type OperatorCommand struct {
+	*BaseCommand
+}
+
+func (c *OperatorCommand) Synopsis() string {
+	return "Perform operator-specific tasks"
+}
+
+func (c *OperatorCommand) Help() string {
+	helpText := `
+Usage: vault operator <subcommand> [options] [args]
+
+  This command groups subcommands for operators interacting with Vault. Most
+  users will not need to interact with these commands. Here are a few examples
+  of the operator commands:
+
+  Initialize a new Vault cluster:
+
+      $ vault operator init
+
+  Force a Vault to resign leadership in a cluster:
+
+      $ vault operator step-down
+
+  Rotate Vault's underlying encryption key:
+
+      $ vault operator rotate
+
+  Please see the individual subcommand help for detailed usage information.
+`
+
+	return strings.TrimSpace(helpText)
+}
+
+func (c *OperatorCommand) Run(args []string) int {
+	return cli.RunResultHelp
+}