github.com/hernad/nomad@v1.6.112/command/server_force_leave.go (about) 1 // Copyright (c) HashiCorp, Inc. 2 // SPDX-License-Identifier: MPL-2.0 3 4 package command 5 6 import ( 7 "fmt" 8 "strings" 9 10 "github.com/posener/complete" 11 ) 12 13 type ServerForceLeaveCommand struct { 14 Meta 15 } 16 17 func (c *ServerForceLeaveCommand) Help() string { 18 helpText := ` 19 Usage: nomad server force-leave [options] <node> 20 21 Forces an server to enter the "left" state. This can be used to 22 eject nodes which have failed and will not rejoin the cluster. 23 Note that if the member is actually still alive, it will 24 eventually rejoin the cluster again. 25 26 If ACLs are enabled, this option requires a token with the 'agent:write' 27 capability. 28 29 General Options: 30 31 ` + generalOptionsUsage(usageOptsDefault|usageOptsNoNamespace) 32 return strings.TrimSpace(helpText) 33 } 34 35 func (c *ServerForceLeaveCommand) Synopsis() string { 36 return "Force a server into the 'left' state" 37 } 38 39 func (c *ServerForceLeaveCommand) AutocompleteFlags() complete.Flags { 40 return c.Meta.AutocompleteFlags(FlagSetClient) 41 } 42 43 func (c *ServerForceLeaveCommand) AutocompleteArgs() complete.Predictor { 44 return complete.PredictNothing 45 } 46 47 func (c *ServerForceLeaveCommand) Name() string { return "server force-leave" } 48 49 func (c *ServerForceLeaveCommand) Run(args []string) int { 50 flags := c.Meta.FlagSet(c.Name(), FlagSetClient) 51 flags.Usage = func() { c.Ui.Output(c.Help()) } 52 if err := flags.Parse(args); err != nil { 53 return 1 54 } 55 56 // Check that we got exactly one node 57 args = flags.Args() 58 if len(args) != 1 { 59 c.Ui.Error("This command takes one argument: <node>") 60 c.Ui.Error(commandErrorText(c)) 61 return 1 62 } 63 node := args[0] 64 65 // Get the HTTP client 66 client, err := c.Meta.Client() 67 if err != nil { 68 c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err)) 69 return 1 70 } 71 72 // Call force-leave on the node 73 if err := client.Agent().ForceLeave(node); err != nil { 74 c.Ui.Error(fmt.Sprintf("Error force-leaving server %s: %s", node, err)) 75 return 1 76 } 77 78 return 0 79 }