mirror of https://github.com/status-im/consul.git
63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package keygen
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import (
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"crypto/rand"
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"encoding/base64"
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"flag"
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"fmt"
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"github.com/hashicorp/consul/command/flags"
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"github.com/mitchellh/cli"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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usage string
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.usage = flags.Usage(usage, c.flags, nil, nil)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.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 *cmd) Synopsis() string {
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return "Generates a new encryption key"
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}
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func (c *cmd) Help() string {
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return c.usage
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}
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const usage = `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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