// Setup lo ip address
// options for operation: add or del
func SetupLoopbackAddress(vm *hypervisor.Vm, container, ip, operation string) error {
execId := fmt.Sprintf("exec-%s", utils.RandStr(10, "alpha"))
command := "ip addr " + operation + " dev lo " + ip + "/32"
execcmd, err := json.Marshal(strings.Split(command, " "))
if err != nil {
return err
}
tty := &hypervisor.TtyIO{
Callback: make(chan *types.VmResponse, 1),
}
result := vm.WaitProcess(false, []string{execId}, 60)
if result == nil {
return fmt.Errorf("can not wait %s, id: %s", command, execId)
}
if err := vm.Exec(container, execId, string(execcmd), false, tty); err != nil {
return err
}
r, ok := <-result
if !ok {
return fmt.Errorf("exec failed %s: %s", command, execId)
}
if r.Code != 0 {
return fmt.Errorf("exec %s on container %s failed with exit code %d", command, container, r.Code)
}
return nil
}
