func runDestroyUnits(args []string) (exit int) {
if len(args) == 0 {
stderr("No units given")
return 0
}
units, err := findUnits(args)
if err != nil {
stderr("%v", err)
return 1
}
for _, v := range units {
err := cAPI.DestroyUnit(v.Name)
if err != nil {
// Ignore 'Unit does not exist' error
if client.IsErrorUnitNotFound(err) {
continue
}
stderr("Error destroying units: %v", err)
exit = 1
continue
}
if !sharedFlags.NoBlock {
attempts := sharedFlags.BlockAttempts
retry := func() bool {
if sharedFlags.BlockAttempts < 1 {
return true
}
attempts--
if attempts == 0 {
return false
}
return true
}
for retry() {
u, err := cAPI.Unit(v.Name)
if err != nil {
stderr("Error destroying units: %v", err)
exit = 1
break
}
if u == nil {
break
}
time.Sleep(defaultSleepTime)
}
}
stdout("Destroyed %s", v.Name)
}
return
}
// destroyUnitWithRetry wraps DestroyUnit of the fleet API with a retry.
func (f *FleetTunnel) destroyUnitWithRetry(unitName string) (notFound bool, err error) {
op := func() error {
if err := f.cAPI.DestroyUnit(unitName); client.IsErrorUnitNotFound(err) {
// Ignore 'Unit does not exist' error
notFound = true
return nil
}
return maskAny(err)
}
if err := backoff.Retry(op, backoff.NewExponentialBackOff()); err != nil {
return notFound, maskAny(err)
}
return notFound, nil
}