github.com/anth0d/nomad@v0.0.0-20221214183521-ae3a0a2cad06/command/operator_gossip_keyring_use.go (about) 1 package command 2 3 import ( 4 "fmt" 5 "strings" 6 7 "github.com/mitchellh/cli" 8 "github.com/posener/complete" 9 ) 10 11 // OperatorGossipKeyringUseCommand is a Command implementation that 12 // handles setting the gossip encryption key from a keyring 13 type OperatorGossipKeyringUseCommand struct { 14 Meta 15 } 16 17 func (c *OperatorGossipKeyringUseCommand) Help() string { 18 helpText := ` 19 Usage: nomad operator gossip keyring use [options] <key> 20 21 Change the encryption key used for gossip. The key must already be installed 22 before this operator can succeed. 23 24 This command can only be run against server nodes. It returns 0 if all nodes 25 reply and there are no errors. If any node fails to reply or reports failure, 26 the exit code will be 1. 27 28 If ACLs are enabled, this command requires a token with the 'agent:write' 29 capability. 30 31 General Options: 32 33 ` + generalOptionsUsage(usageOptsDefault|usageOptsNoNamespace) 34 35 return strings.TrimSpace(helpText) 36 } 37 38 func (c *OperatorGossipKeyringUseCommand) Synopsis() string { 39 return "Change the gossip encryption key" 40 } 41 42 func (c *OperatorGossipKeyringUseCommand) AutocompleteFlags() complete.Flags { 43 return c.Meta.AutocompleteFlags(FlagSetClient) 44 } 45 46 func (c *OperatorGossipKeyringUseCommand) AutocompleteArgs() complete.Predictor { 47 return complete.PredictAnything 48 } 49 50 func (c *OperatorGossipKeyringUseCommand) Name() string { return "operator gossip keyring use" } 51 52 func (c *OperatorGossipKeyringUseCommand) Run(args []string) int { 53 flags := c.Meta.FlagSet("operator-gossip-keyring-use", FlagSetClient) 54 flags.Usage = func() { c.Ui.Output(c.Help()) } 55 if err := flags.Parse(args); err != nil { 56 return 1 57 } 58 59 c.Ui = &cli.PrefixedUi{ 60 OutputPrefix: "", 61 InfoPrefix: "==> ", 62 ErrorPrefix: "", 63 Ui: c.Ui, 64 } 65 66 args = flags.Args() 67 if len(args) != 1 { 68 c.Ui.Error("This command requires one argument: <key>") 69 c.Ui.Error(commandErrorText(c)) 70 return 1 71 } 72 useKey := args[0] 73 74 client, err := c.Meta.Client() 75 if err != nil { 76 c.Ui.Error(fmt.Sprintf("Error creating nomad cli client: %s", err)) 77 return 1 78 } 79 80 c.Ui.Output("Changing primary gossip encryption key...") 81 _, err = client.Agent().UseKey(useKey) 82 if err != nil { 83 c.Ui.Error(fmt.Sprintf("error: %s", err)) 84 return 1 85 } 86 return 0 87 }