package forceleave import ( "flag" "fmt" "github.com/hashicorp/consul/command/flags" "github.com/mitchellh/cli" ) func New(ui cli.Ui) *cmd { c := &cmd{UI: ui} c.init() return c } type cmd struct { UI cli.Ui flags *flag.FlagSet http *flags.HTTPFlags help string } func (c *cmd) init() { c.flags = flag.NewFlagSet("", flag.ContinueOnError) c.http = &flags.HTTPFlags{} flags.Merge(c.flags, c.http.ClientFlags()) c.help = flags.Usage(help, c.flags) } func (c *cmd) Run(args []string) int { if err := c.flags.Parse(args); err != nil { return 1 } nodes := c.flags.Args() if len(nodes) != 1 { c.UI.Error("A single node name must be specified to force leave.") c.UI.Error("") c.UI.Error(c.Help()) return 1 } client, err := c.http.APIClient() if err != nil { c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err)) return 1 } err = client.Agent().ForceLeave(nodes[0]) if err != nil { c.UI.Error(fmt.Sprintf("Error force leaving: %s", err)) return 1 } return 0 } func (c *cmd) Synopsis() string { return synopsis } func (c *cmd) Help() string { return c.help } const synopsis = "Forces a member of the cluster to enter the \"left\" state" const help = ` Usage: consul force-leave [options] name Forces a member of a Consul cluster to enter the "left" state. Note that if the member is still actually alive, it will eventually rejoin the cluster. This command is most useful for cleaning out "failed" nodes that are never coming back. If you do not force leave a failed node, Consul will attempt to reconnect to those failed nodes for some period of time before eventually reaping them. `