Scalr\Modules\Platforms\Cloudstack\Helpers\CloudstackHelper::associateIpAddress PHP Method

    private static function associateIpAddress(\DBServer $dbServer, $ipAddress, $allocationId = null)
    {
        $platform = PlatformFactory::NewPlatform($dbServer->platform);
        $cs = $dbServer->GetEnvironmentObject()->cloudstack($dbServer->platform);
        $assign_retries = 1;
        $retval = false;
        // Remove OLD static NAT
        if ($dbServer->remoteIp) {
            try {
                $requestObject = new ListIpAddressesData();
                $requestObject->ipaddress = $dbServer->remoteIp;
                $info = $cs->listPublicIpAddresses($requestObject);
                $info = $info[0];
                if ($info->issystem && $info->isstaticnat) {
                    $cs->firewall->disableStaticNat($info->id);
                    \Scalr::getContainer()->logger('Cloudstack_Helper')->warn("[STATIC_NAT] Removed old IP static NAT from IP: {$info->id}");
                }
            } catch (Exception $e) {
                \Scalr::getContainer()->logger('Cloudstack_Helper')->error("[STATIC_NAT] Unable to disable old static NAT: {$e->getMessage()}");
            }
        }
        $requestObject = new ListIpAddressesData();
        $requestObject->ipaddress = $ipAddress;
        $info = $cs->listPublicIpAddresses($requestObject);
        $info = $info[0];
        $oldVM = $info->virtualmachinedisplayname;
        if ($info->isstaticnat) {
            \Scalr::getContainer()->logger('Cloudstack_Helper')->warn("[STATIC_NAT] IP {$ipAddress} associated with another VM. Disabling Static NAT.");
            try {
                $result = $cs->firewall->disableStaticNat($allocationId);
                for ($i = 0; $i <= 20; $i++) {
                    $res = $cs->queryAsyncJobResult($result->jobid);
                    if ($res->jobstatus != 0) {
                        \Scalr::getContainer()->logger('Cloudstack_Helper')->warn("[STATIC_NAT] After {$i}x2 seconds, IP {$ipAddress} is free and ready to use.");
                        //UPDATING OLD SERVER
                        try {
                            $oldDbServer = \DBServer::LoadByID($oldVM);
                            $ips = $platform->GetServerIPAddresses($oldDbServer);
                            $oldDbServer->remoteIp = $ips['remoteIp'];
                            $oldDbServer->save();
                        } catch (Exception $e) {
                        }
                        break;
                    }
                    sleep(2);
                }
            } catch (Exception $e) {
                \Scalr::getContainer()->logger('Cloudstack_Helper')->error("[STATIC_NAT] Unable to disable static NAT: {$e->getMessage()}");
            }
        }
        $assignRetries = 0;
        while (true) {
            try {
                $assignRetries++;
                $cs->firewall->enableStaticNat(array('ipaddressid' => $allocationId, 'virtualmachineid' => $dbServer->GetCloudServerID()));
                $retval = true;
                break;
            } catch (Exception $e) {
                if (!stristr($e->getMessage(), "already assigned to antoher vm") || $assignRetries == 3) {
                    \Scalr::getContainer()->logger('Cloudstack_Helper')->error("[STATIC_NAT] Unable to enable static NAT ({$assignRetries}): {$e->getMessage()}");
                    throw new Exception($e->getMessage());
                } else {
                    sleep(1);
                }
            }
        }
        return $retval;
    }