mirror of https://github.com/status-im/consul.git
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
package command
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"encoding/base64"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/hashicorp/consul/command/base"
|
|
)
|
|
|
|
// KeygenCommand is a Command implementation that generates an encryption
|
|
// key for use in `consul agent`.
|
|
type KeygenCommand struct {
|
|
base.Command
|
|
}
|
|
|
|
func (c *KeygenCommand) Run(args []string) int {
|
|
c.Command.NewFlagSet(c)
|
|
if err := c.Command.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
key := make([]byte, 16)
|
|
n, err := rand.Reader.Read(key)
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error reading random data: %s", err))
|
|
return 1
|
|
}
|
|
if n != 16 {
|
|
c.Ui.Error(fmt.Sprintf("Couldn't read enough entropy. Generate more entropy!"))
|
|
return 1
|
|
}
|
|
|
|
c.Ui.Output(base64.StdEncoding.EncodeToString(key))
|
|
return 0
|
|
}
|
|
|
|
func (c *KeygenCommand) Synopsis() string {
|
|
return "Generates a new encryption key"
|
|
}
|
|
|
|
func (c *KeygenCommand) Help() string {
|
|
helpText := `
|
|
Usage: consul keygen
|
|
|
|
Generates a new encryption key that can be used to configure the
|
|
agent to encrypt traffic. The output of this command is already
|
|
in the proper format that the agent expects.
|
|
|
|
` + c.Command.Help()
|
|
|
|
return strings.TrimSpace(helpText)
|
|
}
|