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655 lines
18 KiB
PHP
655 lines
18 KiB
PHP
<?php
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/*
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* CVM is more free software. It is licensed under the WTFPL, which
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* allows you to do pretty much anything with it, without having to
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* ask permission. Commercial use is allowed, and no attribution is
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* required. We do politely request that you share your modifications
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* to benefit other developers, but you are under no enforced
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* obligation to do so :)
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*
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* Please read the accompanying LICENSE document for the full WTFPL
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* licensing text.
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*/
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if(!isset($_CVM)) { die("Unauthorized."); }
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class Container extends CPHPDatabaseRecordClass
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{
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public $table_name = "containers";
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public $fill_query = "SELECT * FROM containers WHERE `Id` = '%d'";
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public $verify_query = "SELECT * FROM containers WHERE `Id` = '%d'";
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public $prototype = array(
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'string' => array(
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'Hostname' => "Hostname",
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'InternalId' => "InternalId",
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'RootPassword' => "RootPassword"
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),
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'numeric' => array(
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'NodeId' => "NodeId",
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'TemplateId' => "TemplateId",
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'UserId' => "UserId",
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'VirtualizationType' => "VirtualizationType",
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'DiskSpace' => "DiskSpace",
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'GuaranteedRam' => "GuaranteedRam",
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'BurstableRam' => "BurstableRam",
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'CpuCount' => "CpuCount",
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'Status' => "Status",
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'IncomingTrafficUsed' => "IncomingTrafficUsed",
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'IncomingTrafficLast' => "IncomingTrafficLast",
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'OutgoingTrafficUsed' => "OutgoingTrafficUsed",
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'OutgoingTrafficLast' => "OutgoingTrafficLast",
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'IncomingTrafficLimit' => "IncomingTrafficLimit",
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'OutgoingTrafficLimit' => "OutgoingTrafficLimit",
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'TotalTrafficLimit' => "TotalTrafficLimit"
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),
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'node' => array(
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'Node' => "NodeId"
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),
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'template' => array(
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'Template' => "TemplateId"
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),
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'user' => array(
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'User' => "UserId"
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)
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);
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public function __get($name)
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{
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switch($name)
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{
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case "sRamUsed":
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return $this->GetRamUsed();
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break;
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case "sRamTotal":
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return $this->GetRamTotal();
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break;
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case "sDiskUsed":
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return $this->GetDiskUsed();
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break;
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case "sDiskTotal":
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return $this->GetDiskTotal();
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break;
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case "sBandwidthUsed":
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return $this->GetBandwidthUsed();
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break;
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case "sCurrentStatus":
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return (int)$this->GetCurrentStatus();
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break;
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case "sStatusText":
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return $this->GetStatusText();
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break;
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default:
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return parent::__get($name);
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break;
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}
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}
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public function GetBandwidthUsed()
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{
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return ($this->sOutgoingTrafficUsed + $this->IncomingTrafficUsed) / (1024 * 1024);
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}
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public function GetCurrentStatus()
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{
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if($this->sStatus == CVM_STATUS_SUSPENDED || $this->sStatus == CVM_STATUS_TERMINATED)
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{
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return $this->sStatus;
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}
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else
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{
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$command = "vzctl status {$this->sInternalId}";
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$result = $this->sNode->ssh->RunCommandCached($command, false);
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if($result->returncode == 0)
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{
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$values = split_whitespace($result->stdout);
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if($values[4] == "running")
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{
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return CVM_STATUS_STARTED;
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}
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else
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{
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return CVM_STATUS_STOPPED;
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}
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}
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}
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}
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public function GetStatusText()
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{
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$status = $this->sCurrentStatus;
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if($status == CVM_STATUS_STARTED)
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{
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return "running";
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}
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elseif($status == CVM_STATUS_STOPPED)
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{
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return "stopped";
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}
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elseif($status == CVM_STATUS_SUSPENDED)
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{
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return "suspended";
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}
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else
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{
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return "unknown";
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}
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}
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public function GetRamUsed()
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{
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$ram = $this->GetRam();
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return $ram['used'];
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}
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public function GetRamTotal()
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{
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$ram = $this->GetRam();
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return $ram['total'];
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}
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public function GetRam()
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{
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$result = $this->RunCommandCached("free -m", true);
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$lines = explode("\n", $result->stdout);
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array_shift($lines);
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$total_free = 0;
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$total_used = 0;
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$total_total = 0;
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foreach($lines as $line)
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{
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$line = trim($line);
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$values = split_whitespace($line);
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if(trim($values[0]) == "Mem:")
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{
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$total_total = $values[1];
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$total_used = $values[2];
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$total_free = $values[3];
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}
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}
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return array(
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'free' => $total_free,
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'used' => $total_used,
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'total' => $total_total
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);
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}
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public function GetDiskUsed()
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{
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$disk = $this->GetDisk();
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return $disk['used'];
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}
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public function GetDiskTotal()
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{
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$disk = $this->GetDisk();
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return $disk['total'];
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}
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public function GetDisk()
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{
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$result = $this->RunCommandCached("df -l -x tmpfs", true);
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$lines = explode("\n", $result->stdout);
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array_shift($lines);
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$total_free = 0;
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$total_used = 0;
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$total_total = 0;
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foreach($lines as $disk)
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{
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$disk = trim($disk);
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if(!empty($disk))
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{
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$values = split_whitespace($disk);
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$total_free += (int)$values[3] / 1024;
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$total_used += (int)$values[2] / 1024;
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$total_total += ((int)$values[2] + (int)$values[3]) / 1024;
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}
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}
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return array(
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'free' => $total_free,
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'used' => $total_used,
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'total' => $total_total
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);
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}
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public function CheckAllowed()
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{
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if($this->sStatus == CVM_STATUS_SUSPENDED)
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{
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throw new ContainerSuspendedException("No operations can be performed on this container beacuse it is suspended.", 1, $this->sInternalId);
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}
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elseif($this->sStatus == CVM_STATUS_TERMINATED)
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{
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throw new ContainerSuspendedException("No operations can be performed on this container beacuse it is terminated.", 1, $this->sInternalId);
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}
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else
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{
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return true;
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}
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}
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public function SetOptions($options)
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{
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if(is_array($options))
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{
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foreach($options as $key => $value)
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{
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$config_elements[] = "--{$key} {$value}";
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}
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$config_string = implode(" ", $config_elements);
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$this->sNode->ssh->RunCommand("vzctl set {$this->sInternalId} {$config_string} --save", true);
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}
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else
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{
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throw new InvalidArgumentException("The option argument to Container::SetOptions should be an array.");
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}
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}
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public function RunCommand($command, $throw_exception = false)
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{
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return $this->sNode->ssh->RunCommand("vzctl exec {$this->sInternalId} $command", $throw_exception);
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}
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public function RunCommandCached($command, $throw_exception = false)
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{
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return $this->sNode->ssh->RunCommandCached("vzctl exec {$this->sInternalId} $command", $throw_exception);
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}
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public function Deploy($conf = array())
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{
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$sRootPassword = random_string(20);
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$this->uRootPassword = $sRootPassword;
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$this->InsertIntoDatabase();
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$command = shrink_command("vzctl create {$this->sInternalId}
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--ostemplate {$this->sTemplate->sTemplateName}
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");
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$result = $this->sNode->ssh->RunCommand($command, false);
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$result->returncode = 0;
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if($result->returncode == 0 && strpos($result->stderr, "ERROR") === false)
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{
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// TODO: set sensible defaults depending on container resource configuration
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// http://wiki.openvz.org/UBC_consistency_check
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// http://wiki.openvz.org/UBC_parameter_units
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// http://wiki.openvz.org/UBC_configuration_examples
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// http://wiki.openvz.org/UBC_parameters_table
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$this->uStatus = CVM_STATUS_CREATED;
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$this->InsertIntoDatabase();
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$dummy_processes = 1000;
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$dummy_files = $this->sGuaranteedRam * 32;
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$dummy_sockets = $this->sGuaranteedRam * 3;
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$sKMemSize = (isset($conf['sKMemSize'])) ? $conf['sKMemSize'] : (40 * 1024 * ($dummy_processes / 2)) + ($dummy_files * 384 * 100);
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$sKMemSizeLimit = (isset($conf['sKMemSizeLimit'])) ? $conf['sKMemSizeLimit'] : (int)($sKMemSize * 1.1);
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$sLockedPages = (isset($conf['sLockedPages'])) ? $conf['sLockedPages'] : $dummy_processes;
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$sShmPages = (isset($conf['sShmPages'])) ? $conf['sShmPages'] : $this->sGuaranteedRam . "M";
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$sOomGuarPages = (isset($conf['sOomGuarPages'])) ? $conf['sOomGuarPages'] : $this->sGuaranteedRam . "M";
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$sTcpSock = (isset($conf['sTcpSock'])) ? $conf['sTcpSock'] : $dummy_sockets;
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$sOtherSock = (isset($conf['sOtherSock'])) ? $conf['sOtherSock'] : $dummy_sockets;
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$sFLock = (isset($conf['sFLock'])) ? $conf['sFLock'] : $dummy_processes;
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$sFLockLimit = (isset($conf['sFLockLimit'])) ? $conf['sFLockLimit'] : (int)($sFLock * 1.1);
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$sTcpSndBuf = (isset($conf['sTcpSndBuf'])) ? $conf['sTcpSndBuf'] : round($this->sGuaranteedRam * 1024 / 5) . "K";
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$sTcpRcvBuf = (isset($conf['sTcpRcvBuf'])) ? $conf['sTcpRcvBuf'] : round($this->sGuaranteedRam * 1024 / 5) . "K";
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$sOtherBuf = (isset($conf['sOtherBuf'])) ? $conf['sOtherBuf'] : round($this->sGuaranteedRam * 1024 / 5) . "K";
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$sOtherBufLimit = (isset($conf['sOtherBufLimit'])) ? $conf['sOtherBufLimit'] : (int)($sOtherBuf + (2 * $dummy_processes * 16));
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$sTcpSndBufLimit = (isset($conf['sTcpSndBufLimit'])) ? $conf['sTcpSndBufLimit'] : (int)($sTcpSndBuf + (2 * $dummy_processes * 16));
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$sTcpRcvBufLimit = (isset($conf['sTcpRcvBufLimit'])) ? $conf['sTcpRcvBufLimit'] : (int)($sTcpRcvBuf + (2 * $dummy_processes * 16));
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$sDgramBuf = (isset($conf['sDgramBuf'])) ? $conf['sDgramBuf'] : round($this->sGuaranteedRam * 1024 / 5) . "K";
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$sNumFile = (isset($conf['sNumFile'])) ? $conf['sNumFile'] : $dummy_files;
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$sNumProc = (isset($conf['sNumProc'])) ? $conf['sNumProc'] : $dummy_processes;
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$sDCache = (isset($conf['sDCache'])) ? $conf['sDCache'] : $dummy_files * 384;
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$sDCacheLimit = (isset($conf['sDCacheLimit'])) ? $conf['sDCacheLimit'] : (int)($sDCache * 1.1);
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$sAvgProc = (isset($conf['sAvgProc'])) ? $conf['sAvgProc'] : $dummy_processes / 2;
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$command = shrink_command("vzctl set {$this->sInternalId}
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--onboot yes
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--setmode restart
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--hostname {$this->sHostname}
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--nameserver 8.8.8.8
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--nameserver 8.8.4.4
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--numproc {$this->sCpuCount}
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--vmguarpages {$this->sGuaranteedRam}M:unlimited
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--privvmpages {$this->sBurstableRam}M:{$this->sBurstableRam}M
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--quotatime 0
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--diskspace {$this->sDiskSpace}M:{$this->sDiskSpace}M
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--userpasswd root:{$sRootPassword}
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--kmemsize {$sKMemSize}:{$sKMemSizeLimit}
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--lockedpages {$sLockedPages}:{$sLockedPages}
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--shmpages {$sShmPages}:{$sShmPages}
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--physpages 0:unlimited
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--oomguarpages {$sOomGuarPages}:unlimited
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--numtcpsock {$sTcpSock}:{$sTcpSock}
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--numflock {$sFLock}:{$sFLockLimit}
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--numpty 32:32
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--numsiginfo 512:512
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--tcpsndbuf {$sTcpSndBuf}:{$sTcpSndBufLimit}
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--tcprcvbuf {$sTcpRcvBuf}:{$sTcpRcvBufLimit}
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--othersockbuf {$sOtherBuf}:{$sOtherBufLimit}
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--dgramrcvbuf {$sDgramBuf}:{$sDgramBuf}
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--numothersock {$sOtherSock}:{$sOtherSock}
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--numfile {$sNumFile}:{$sNumFile}
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--numproc {$sNumProc}:{$sNumProc}
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--dcachesize {$sDCache}:{$sDCacheLimit}
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--numiptent 128:128
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--diskinodes 200000:220000
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--avnumproc {$sAvgProc}:{$sAvgProc}
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--save
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");
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/*
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This may be useful if we turn out to have a kernel that supports vswap
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$command = shrink_command("vzctl set {$this->sInternalId}
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--onboot yes
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--setmode restart
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--hostname {$this->sHostname}
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--nameserver 8.8.8.8
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--nameserver 8.8.4.4
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--numproc {$this->sCpuCount}
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--quotatime 0
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--diskspace {$this->sDiskSpace}M:{$this->sDiskSpace}M
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--userpasswd root:{$sRootPassword}
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--numtcpsock 360:360
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--numflock 188:206
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--numpty 16:16
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--numsiginfo 256:256
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--tcpsndbuf 1720320:2703360
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--tcprcvbuf 1720320:2703360
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--othersockbuf 1126080:2097152
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--dgramrcvbuf 262144:262144
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--numothersock 360:360
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--numfile 9312:9312
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--dcachesize 3409920:3624960
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--numiptent 128:128
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--diskinodes 200000:220000
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--avnumproc 180:180
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--ram {$this->sGuaranteedRam}M
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--swap {$this->sBurstableRam}M
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--save
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");*/
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$result = $this->sNode->ssh->RunCommand($command, false);
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if($result->returncode == 0)
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{
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$this->uStatus = CVM_STATUS_CONFIGURED;
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$this->InsertIntoDatabase();
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return true;
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}
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else
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{
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throw new ContainerConfigureException($result->stderr, $result->returncode, $this->sInternalId);
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}
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}
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else
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{
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throw new ContainerCreateException($result->stderr, $result->returncode, $this->sInternalId);
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}
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}
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public function Destroy()
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{
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if($this->sCurrentStatus == CVM_STATUS_STARTED)
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{
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$this->Stop();
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}
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$command = "vzctl destroy {$this->sInternalId}";
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$result = $this->sNode->ssh->RunCommand($command, false);
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if($result->returncode == 0)
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{
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return true;
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}
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else
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{
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throw new ContainerDestroyException("Destroying container failed: {$result->stderr}", $result->returncode, $this->sInternalId);
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}
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}
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public function Reinstall()
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{
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try
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{
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$this->Destroy();
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$this->Deploy();
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}
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catch (ContainerDestroyException $e)
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{
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throw new ContainerReinstallException("Reinstalling container failed during destroying: " . $e->getMessage(), $e->getCode(), $this->sInternalId, $e);
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}
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catch (ContainerCreateException $e)
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{
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throw new ContainerReinstallException("Reinstalling container failed during creation: " . $e->getMessage(), $e->getCode(), $this->sInternalId, $e);
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}
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catch (ContainerConfigureException $e)
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{
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throw new ContainerReinstallException("Reinstalling container failed during configuration: " . $e->getMessage(), $e->getCode(), $this->sInternalId, $e);
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}
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}
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public function Start($forced = false)
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{
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if($this->sStatus == CVM_STATUS_SUSPENDED && $forced == false)
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{
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throw new ContainerSuspendedException("The container cannot be started as it is suspended.", 1, $this->sInternalId);
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}
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elseif($this->sStatus == CVM_STATUS_TERMINATED && $forced == false)
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{
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throw new ContainerTerminatedException("The container cannot be started as it is terminated.", 1, $this->sInternalId);
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}
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else
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{
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$command = "vzctl start {$this->sInternalId}";
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$result = $this->sNode->ssh->RunCommand($command, false);
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if($result->returncode == 0)
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{
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$this->uStatus = CVM_STATUS_STARTED;
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$this->InsertIntoDatabase();
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return true;
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}
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else
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{
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throw new ContainerStartException($result->stderr, $result->returncode, $this->sInternalId);
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}
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}
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}
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public function Stop()
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{
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if($this->sStatus == CVM_STATUS_SUSPENDED)
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{
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throw new ContainerSuspendedException("The container cannot be stopped as it is suspended.", 1, $this->sInternalId);
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}
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elseif($this->sStatus == CVM_STATUS_TERMINATED)
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{
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throw new ContainerTerminatedException("The container cannot be stopped as it is terminated.", 1, $this->sInternalId);
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}
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else
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{
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$command = "vzctl stop {$this->sInternalId}";
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$result = $this->sNode->ssh->RunCommand($command, false);
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// vzctl is retarded enough to return exit status 0 when the command fails because the container isn't running, so we'll have to check the stderr for specific error string(s) as well. come on guys, it's 2012.
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if($result->returncode == 0 && strpos($result->stderr, "Unable to stop") === false)
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{
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$this->uStatus = CVM_STATUS_STOPPED;
|
|
$this->InsertIntoDatabase();
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerStopException($result->stderr, $result->returncode, $this->sInternalId);
|
|
}
|
|
}
|
|
}
|
|
|
|
public function Suspend()
|
|
{
|
|
if($this->sStatus != CVM_STATUS_SUSPENDED)
|
|
{
|
|
try
|
|
{
|
|
$this->Stop();
|
|
$this->uStatus = CVM_STATUS_SUSPENDED;
|
|
$this->InsertIntoDatabase();
|
|
}
|
|
catch (ContainerStopException $e)
|
|
{
|
|
throw new ContainerSuspendException("Suspension failed as the container could not be stopped.", 1, $this->sInternalId, $e);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerSuspendException("The container is already suspended.", 1, $this->sInternalId);
|
|
}
|
|
}
|
|
|
|
public function Unsuspend()
|
|
{
|
|
if($this->sStatus == CVM_STATUS_SUSPENDED)
|
|
{
|
|
try
|
|
{
|
|
$this->Start(true);
|
|
$this->uStatus = CVM_STATUS_STARTED;
|
|
$this->InsertIntoDatabase();
|
|
}
|
|
catch (ContainerStartException $e)
|
|
{
|
|
throw new ContainerUnsuspendException("Unsuspension failed as the container could not be started.", 1, $this->sInternalId, $e);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerUnsuspendException("The container is not suspended.", 1, $this->sInternalId);
|
|
}
|
|
}
|
|
|
|
public function AddIp($ip)
|
|
{
|
|
$command = shrink_command("vzctl set {$this->sInternalId}
|
|
--ipadd {$ip}
|
|
--save
|
|
");
|
|
|
|
$result = $this->sNode->ssh->RunCommand($command, false);
|
|
|
|
pretty_dump($result);
|
|
|
|
if($result->returncode == 0)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerIpAddException($result->stderr, $result->returncode, $this->sInternalId);
|
|
}
|
|
}
|
|
|
|
public function RemoveIp($ip)
|
|
{
|
|
$command = shrink_command("vzctl set {$this->sInternalId}
|
|
--ipdel {$ip}
|
|
--save
|
|
");
|
|
|
|
$result = $this->sNode->ssh->RunCommand($command, false);
|
|
|
|
if($result->returncode == 0)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerIpRemoveException($result->stderr, $result->returncode, $this->sInternalId);
|
|
}
|
|
}
|
|
|
|
public function UpdateTraffic()
|
|
{
|
|
$result = $this->sNode->ssh->RunCommand("vzctl exec {$this->sInternalId} cat /proc/net/dev | grep venet0", false);
|
|
|
|
if($result->returncode == 0)
|
|
{
|
|
$lines = split_lines($result->stdout);
|
|
$values = split_whitespace(str_replace(":", " ", $lines[0]));
|
|
|
|
$uIncoming = $values[1];
|
|
$uOutgoing = $values[9];
|
|
|
|
if($uIncoming < (int)$this->sIncomingTrafficLast || $uOutgoing < (int)$this->sOutgoingTrafficLast)
|
|
{
|
|
// the counter has reset (wrap-around, reboot, etc.)
|
|
$uNewIncoming = $uIncoming;
|
|
$uNewOutgoing = $uOutgoing;
|
|
}
|
|
else
|
|
{
|
|
$uNewIncoming = $uIncoming - $this->sIncomingTrafficLast;
|
|
$uNewOutgoing = $uOutgoing - $this->sOutgoingTrafficLast;
|
|
}
|
|
|
|
$this->uIncomingTrafficUsed = $this->sIncomingTrafficUsed + $uNewIncoming;
|
|
$this->uOutgoingTrafficUsed = $this->sOutgoingTrafficUsed + $uNewOutgoing;
|
|
|
|
$this->uIncomingTrafficLast = $uIncoming;
|
|
$this->uOutgoingTrafficLast = $uOutgoing;
|
|
|
|
$this->InsertIntoDatabase();
|
|
}
|
|
else
|
|
{
|
|
throw new ContainerTrafficRetrieveException($result->stderr, $result->returncode, $this->sInternalId);
|
|
}
|
|
}
|
|
|
|
public function SetRootPassword($password)
|
|
{
|
|
if($this->sStatus == CVM_STATUS_SUSPENDED)
|
|
{
|
|
throw new ContainerSuspendedException("The root password cannot be changed, because the container is suspended.", 1, $this->sInternalId);
|
|
}
|
|
elseif($this->sStatus == CVM_STATUS_TERMINATED)
|
|
{
|
|
throw new ContainerTerminatedException("The root password cannot be changed, because the container is terminated.", 1, $this->sInternalId);
|
|
}
|
|
else
|
|
{
|
|
$sPassword = escapeshellarg($password);
|
|
|
|
$this->SetOptions(array(
|
|
'userpasswd' => "root:{$sPassword}"
|
|
));
|
|
}
|
|
}
|
|
|
|
public function EnableTunTap()
|
|
{
|
|
// TODO: Finish EnableTunTap function, check whether tun module is available on host
|
|
$command = "vzctl set {$this->sInternalId} --devnodes net/tun:rw --save";
|
|
}
|
|
}
|