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operator_gossip_keyring_generate.go
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/
operator_gossip_keyring_generate.go
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package command
import (
"crypto/rand"
"encoding/base64"
"fmt"
"strings"
)
// OperatorGossipKeyringGenerateCommand is a Command implementation that
// generates an encryption key for use in `nomad agent`.
type OperatorGossipKeyringGenerateCommand struct {
Meta
}
func (c *OperatorGossipKeyringGenerateCommand) Synopsis() string {
return "Generates a new encryption key"
}
func (c *OperatorGossipKeyringGenerateCommand) Help() string {
helpText := `
Usage: nomad operator gossip keying generate
Alias: nomad operator keygen
Generates a new 32-byte 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.
`
return strings.TrimSpace(helpText)
}
func (c *OperatorGossipKeyringGenerateCommand) Name() string {
return "operator gossip keyring generate"
}
func (c *OperatorGossipKeyringGenerateCommand) Run(_ []string) int {
key := make([]byte, 32)
n, err := rand.Reader.Read(key)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error reading random data: %s", err))
return 1
}
if n != 32 {
c.Ui.Error("Couldn't read enough entropy. Generate more entropy!")
return 1
}
c.Ui.Output(base64.StdEncoding.EncodeToString(key))
return 0
}