mirror of https://github.com/status-im/consul.git
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package command
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import (
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"flag"
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"fmt"
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"github.com/mitchellh/cli"
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"strings"
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)
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// LeaveCommand is a Command implementation that instructs
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// the Consul agent to gracefully leave the cluster
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type LeaveCommand struct {
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Ui cli.Ui
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}
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func (c *LeaveCommand) Help() string {
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helpText := `
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Usage: consul leave
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Causes the agent to gracefully leave the Consul cluster and shutdown.
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Options:
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-rpc-addr=127.0.0.1:8400 RPC address of the Consul agent.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *LeaveCommand) Run(args []string) int {
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cmdFlags := flag.NewFlagSet("leave", flag.ContinueOnError)
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cmdFlags.Usage = func() { c.Ui.Output(c.Help()) }
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rpcAddr := RPCAddrFlag(cmdFlags)
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if err := cmdFlags.Parse(args); err != nil {
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return 1
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}
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nonFlagArgs := cmdFlags.Args()
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if len(nonFlagArgs) > 0 {
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c.Ui.Error(fmt.Sprintf("Error found unexpected args: %v", nonFlagArgs))
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c.Ui.Output(c.Help())
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return 1
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}
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client, err := RPCClient(*rpcAddr)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
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return 1
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}
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defer client.Close()
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if err := client.Leave(); err != nil {
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c.Ui.Error(fmt.Sprintf("Error leaving: %s", err))
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return 1
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}
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c.Ui.Output("Graceful leave complete")
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return 0
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}
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func (c *LeaveCommand) Synopsis() string {
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return "Gracefully leaves the Consul cluster and shuts down"
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}
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