1package forceleave 2 3import ( 4 "flag" 5 "fmt" 6 7 "github.com/hashicorp/consul/command/flags" 8 "github.com/mitchellh/cli" 9) 10 11func New(ui cli.Ui) *cmd { 12 c := &cmd{UI: ui} 13 c.init() 14 return c 15} 16 17type cmd struct { 18 UI cli.Ui 19 flags *flag.FlagSet 20 http *flags.HTTPFlags 21 help string 22 23 //flags 24 prune bool 25} 26 27func (c *cmd) init() { 28 c.flags = flag.NewFlagSet("", flag.ContinueOnError) 29 c.flags.BoolVar(&c.prune, "prune", false, 30 "Remove agent completely from list of members") 31 c.http = &flags.HTTPFlags{} 32 flags.Merge(c.flags, c.http.ClientFlags()) 33 c.help = flags.Usage(help, c.flags) 34} 35 36func (c *cmd) Run(args []string) int { 37 if err := c.flags.Parse(args); err != nil { 38 return 1 39 } 40 41 nodes := c.flags.Args() 42 if len(nodes) != 1 { 43 c.UI.Error("A single node name must be specified to force leave.") 44 c.UI.Error("") 45 c.UI.Error(c.Help()) 46 return 1 47 } 48 49 client, err := c.http.APIClient() 50 if err != nil { 51 c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err)) 52 return 1 53 } 54 55 if c.prune { 56 err = client.Agent().ForceLeavePrune(nodes[0]) 57 } else { 58 err = client.Agent().ForceLeave(nodes[0]) 59 } 60 61 if err != nil { 62 c.UI.Error(fmt.Sprintf("Error force leaving: %s", err)) 63 return 1 64 } 65 66 return 0 67} 68 69func (c *cmd) Synopsis() string { 70 return synopsis 71} 72 73func (c *cmd) Help() string { 74 return c.help 75} 76 77const synopsis = "Forces a member of the cluster to enter the \"left\" state" 78const help = ` 79Usage: consul force-leave [options] name 80 81 Forces a member of a Consul cluster to enter the "left" state. Note 82 that if the member is still actually alive, it will eventually rejoin 83 the cluster. This command is most useful for cleaning out "failed" nodes 84 that are never coming back. If you do not force leave a failed node, 85 Consul will attempt to reconnect to those failed nodes for some period of 86 time before eventually reaping them. 87 88 -prune Remove agent completely from list of members 89` 90