Scalr\Modules\Platforms\Cloudstack\CloudstackPlatformModule::GetServersList PHP Method

    public function GetServersList(Scalr_Environment $environment, $region, $skipCache = false)
    {
        if (!$region) {
            return array();
        }
        if (!$this->instancesListCache[$environment->id][$region] || $skipCache) {
            $cs = $environment->cloudstack($this->platform);
            try {
                $results = $cs->instance->describe(array('zoneid' => $region));
            } catch (Exception $e) {
                throw new Exception(sprintf("Cannot get list of servers for platform {$this->platform}: %s", $e->getMessage()));
            }
            if (count($results) > 0) {
                foreach ($results as $item) {
                    $this->instancesListCache[$environment->id][$region][$item->id] = $item->state;
                }
            }
        }
        return $this->instancesListCache[$environment->id][$region];
    }