DBServer::GetSsh2Client PHP Method

    public function GetSsh2Client()
    {
        $ssh2Client = new Scalr_Net_Ssh2_Client();
        switch ($this->platform) {
            case SERVER_PLATFORMS::RACKSPACENG_UK:
            case SERVER_PLATFORMS::RACKSPACENG_US:
                $ssh2Client->addPassword('root', $this->GetProperty(OPENSTACK_SERVER_PROPERTIES::ADMIN_PASS));
                break;
            case SERVER_PLATFORMS::GCE:
                $userName = 'scalr';
                if ($this->status == SERVER_STATUS::TEMPORARY) {
                    $keyName = 'SCALR-ROLESBUILDER-' . SCALR_ID;
                } else {
                    $keyName = "FARM-{$this->farmId}-" . SCALR_ID;
                }
                try {
                    $key = (new SshKey())->loadGlobalByName($this->envId, SERVER_PLATFORMS::GCE, "", $keyName);
                    if (!$key) {
                        throw new Exception(_("There is no SSH key for server: {$this->serverId}"));
                    }
                } catch (Exception $e) {
                    throw new Exception("Cannot init SshKey object: {$e->getMessage()}");
                }
                $priv_key_file = tempnam("/tmp", "GCEPK");
                @file_put_contents($priv_key_file, $key->privateKey);
                $this->tmpFiles[] = $priv_key_file;
                $pub_key_file = tempnam("/tmp", "GCEK");
                @file_put_contents($pub_key_file, $key->publicKey);
                $this->tmpFiles[] = $pub_key_file;
                $ssh2Client->addPubkey($userName, $pub_key_file, $priv_key_file);
                break;
            case SERVER_PLATFORMS::IDCF:
            case SERVER_PLATFORMS::EC2:
                $userName = 'root';
                $skipKeyValidation = false;
                // Temporary server for role builder
                $sshKey = new SshKey();
                if ($this->status == SERVER_STATUS::TEMPORARY) {
                    $keyName = "SCALR-ROLESBUILDER-" . SCALR_ID . "-{$this->envId}";
                    if (!$sshKey->loadGlobalByName($this->envId, $this->platform, $this->GetCloudLocation(), $keyName)) {
                        $keyName = "SCALR-ROLESBUILDER-" . SCALR_ID;
                    }
                    try {
                        $bundleTaskId = $this->GetProperty(\SERVER_PROPERTIES::SZR_IMPORTING_BUNDLE_TASK_ID);
                        $bundleTask = BundleTask::LoadById($bundleTaskId);
                        if ($bundleTask->osFamily == 'amazon') {
                            $userName = 'ec2-user';
                        }
                    } catch (Exception $e) {
                    }
                } else {
                    $keyName = "FARM-{$this->farmId}-" . SCALR_ID;
                    $oldKeyName = "FARM-{$this->farmId}";
                    $key = $sshKey->loadGlobalByName($this->envId, $this->platform, $this->GetCloudLocation(), $oldKeyName);
                    if ($key) {
                        $keyName = $oldKeyName;
                        $skipKeyValidation = true;
                    }
                }
                if (!$skipKeyValidation) {
                    try {
                        $key = $sshKey->loadGlobalByName($this->envId, $this->platform, $this->GetCloudLocation(), $keyName);
                        if (!$key) {
                            throw new Exception(sprintf('Could not find SSH Key for server "%s" with name:"%s", cloud-location:"%s", platform:"%s", environment:"%d".', $this->serverId, $keyName, $this->GetCloudLocation(), $this->platform, $this->envId));
                        }
                    } catch (Exception $e) {
                        throw new Exception("Cannot init SshKey object: {$e->getMessage()}");
                    }
                }
                $priv_key_file = tempnam("/tmp", "AWSK");
                @file_put_contents($priv_key_file, $key->privateKey);
                $this->tmpFiles[] = $priv_key_file;
                $pub_key_file = tempnam("/tmp", "AWSK");
                $this->tmpFiles[] = $pub_key_file;
                $pubKey = $key->publicKey;
                if (!stristr($pubKey, $keyName)) {
                    $pubKey .= " {$keyName}";
                }
                @file_put_contents($pub_key_file, $pubKey);
                $ssh2Client->addPubkey($userName, $pub_key_file, $priv_key_file);
                break;
        }
        return $ssh2Client;
    }