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