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|
package main
import (
"fmt"
"net/http"
"net/url"
"strconv"
"time"
"github.com/spf13/cobra"
incus "github.com/lxc/incus/v6/client"
)
type cmdShutdown struct {
global *cmdGlobal
flagForce bool
flagTimeout int
}
func (c *cmdShutdown) command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = "shutdown"
cmd.Short = "Tell the daemon to shutdown all instances and exit"
cmd.Long = `Description:
Tell the daemon to shutdown all instances and exit
This will tell the daemon to start a clean shutdown of all instances,
followed by having itself shutdown and exit.
This can take quite a while as instances can take a long time to
shutdown, especially if a non-standard timeout was configured for them.
`
cmd.RunE = c.run
cmd.Flags().IntVarP(&c.flagTimeout, "timeout", "t", 0, "Number of seconds to wait before giving up"+"``")
cmd.Flags().BoolVarP(&c.flagForce, "force", "f", false, "Force shutdown instead of waiting for running operations to finish"+"``")
cmd.Hidden = true
return cmd
}
func (c *cmdShutdown) run(_ *cobra.Command, _ []string) error {
connArgs := &incus.ConnectionArgs{
SkipGetServer: true,
}
d, err := incus.ConnectIncusUnix("", connArgs)
if err != nil {
return err
}
v := url.Values{}
v.Set("force", strconv.FormatBool(c.flagForce))
chResult := make(chan error, 1)
go func() {
defer close(chResult)
httpClient, err := d.GetHTTPClient()
if err != nil {
chResult <- err
return
}
// Request shutdown, this shouldn't return until daemon has stopped so use a large request timeout.
httpTransport := httpClient.Transport.(*http.Transport)
httpTransport.ResponseHeaderTimeout = 3600 * time.Second
_, _, err = d.RawQuery("PUT", fmt.Sprintf("/internal/shutdown?%s", v.Encode()), nil, "")
if err != nil {
chResult <- err
return
}
}()
if c.flagTimeout > 0 {
select {
case err = <-chResult:
return err
case <-time.After(time.Second * time.Duration(c.flagTimeout)):
return fmt.Errorf("Daemon still running after %ds timeout", c.flagTimeout)
}
}
return <-chResult
}
|
