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leave.go
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leave.go
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package command
import (
"fmt"
"strings"
)
// LeaveCommand is a Command implementation that instructs
// the Consul agent to gracefully leave the cluster
type LeaveCommand struct {
BaseCommand
}
func (c *LeaveCommand) Help() string {
helpText := `
Usage: consul leave [options]
Causes the agent to gracefully leave the Consul cluster and shutdown.
` + c.BaseCommand.Help()
return strings.TrimSpace(helpText)
}
func (c *LeaveCommand) Run(args []string) int {
f := c.BaseCommand.NewFlagSet(c)
if err := c.BaseCommand.Parse(args); err != nil {
return 1
}
nonFlagArgs := f.Args()
if len(nonFlagArgs) > 0 {
c.UI.Error(fmt.Sprintf("Error found unexpected args: %v", nonFlagArgs))
c.UI.Output(c.Help())
return 1
}
client, err := c.BaseCommand.HTTPClient()
if err != nil {
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
return 1
}
if err := client.Agent().Leave(); err != nil {
c.UI.Error(fmt.Sprintf("Error leaving: %s", err))
return 1
}
c.UI.Output("Graceful leave complete")
return 0
}
func (c *LeaveCommand) Synopsis() string {
return "Gracefully leaves the Consul cluster and shuts down"
}