395 lines
10 KiB
PHP
395 lines
10 KiB
PHP
<?php
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include("Exception.php");
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class Libvirt {
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public $hostname;
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public $port;
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public $libpath;
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public $conn;
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/**
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*
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* setHost 设置服务器信息
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*
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* @param $hostname SSH 主机名
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* @param $port 服务器端口
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* @param $libpath Libvirt 镜像储存位置
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*
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*/
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public function setHost($hostname = "", $port = 0, $libpath = "") {
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$this->hostname = $hostname;
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$this->libpath = $libpath;
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$this->port = intval($port);
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}
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/**
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*
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* connect 连接服务器
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*
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* @param $username SSH 用户名
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* @param $password SSH 密码
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*
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*/
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public function connect($username = "", $password = "") {
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if(!$this->hostname || !$this->port || !$this->libpath) {
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throw new HostUndefineException();
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} else {
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try {
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$this->conn = ssh2_connect($this->hostname, $this->port);
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ssh2_auth_password($this->conn, $username, $password);
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if($this->runCommand("whoami") == "") {
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throw new LoginFailedException();
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}
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} catch (Exception $e) {
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die($e->getMessage());
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}
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}
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}
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/**
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*
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* runCommand 执行 Shell 命令
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*
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* @param $data 需要执行的命令
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*
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*/
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public function runCommand($data) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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$stream = ssh2_exec($this->conn, $data);
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stream_set_blocking($stream, true);
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$stream_out = ssh2_fetch_stream($stream, SSH2_STREAM_STDIO);
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return stream_get_contents($stream_out);
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}
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/**
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*
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* getList 获取当前主机上的所有虚拟机
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*
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* @return Array 虚拟机列表
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*
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*/
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public function getList() {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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$list = $this->runCommand("virsh list --all --name");
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$list = explode("\n", $list);
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$data = array();
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foreach($list as $item) {
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if($item !== "") {
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$data[count($data)] = $item;
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}
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}
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return $data;
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}
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/**
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*
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* start 启动指定的虚拟机
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*
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* @param $server 虚拟机名称
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* @return String 执行结果
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*
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*/
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public function start($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh start {$server}");
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}
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/**
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*
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* destroy 强制关闭指定的虚拟机
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*
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* @param $server 虚拟机名称
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* @return String 执行结果
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*
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*/
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public function destroy($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh destroy {$server}");
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}
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/**
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*
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* shutdown 关闭指定的虚拟机
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*
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* @param $server 虚拟机名称
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* @return String 执行结果
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*
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*/
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public function shutdown($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh shutdown {$server}");
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}
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/**
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*
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* define 载入指定的虚拟机配置文件
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*
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* @param $xmlfile XML 文件路径和名称
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* @return String 执行结果
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*
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*/
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public function define($xmlfile) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh define {$xmlfile}");
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}
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/**
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*
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* undefine 移除指定的虚拟机
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*
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* @param $server 虚拟机名称
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* @return String 执行结果
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*
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*/
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public function undefine($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh undefine {$server}");
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}
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/**
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*
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* dumpxml 输出指定的虚拟机的配置文件
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*
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* @param $server 虚拟机名称
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* @return String 虚拟机配置文件
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*
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*/
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public function dumpxml($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh dumpxml {$server}");
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}
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/**
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*
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* getInfo 获取指定的虚拟机的配置信息
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*
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* @param $server 虚拟机名称
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* @return Array 虚拟机配置信息数组
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*
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*/
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public function getInfo($server) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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$info = $this->runCommand("virsh dominfo {$server}");
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$info = explode("\n", $info);
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$data = array();
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foreach($info as $item) {
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if($item !== "") {
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$exp = explode(": ", $item);
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$key = trim($exp[0]);
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$value = trim($exp[1]);
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$data[$key] = $value;
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}
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}
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return $data;
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}
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/**
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*
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* createVMXML 创建新的虚拟机配置并上传至服务器
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*
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* @param $server 名称
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* @param $vcpu CPU 数量
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* @param $memory 运行内存
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* @param $disk 磁盘镜像路径
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* @param $iso ISO 镜像路径
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* @param $boot 首选启动设备
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* @param $network_type 网卡类型
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* @param $network_name 网卡名称
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* @param $network_mac 网卡 MAC 地址
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* @param $network_bridge 网卡桥接名称
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* @param $bandwidth_in 限制下行最大速率（0为不限制）
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* @param $bandwidth_out 限制上行最大速率（0为不限制）
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* @param $vnc_port VNC 远程连接端口
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*
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*/
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public function createVMXML($server, $vcpu, $memory, $disk = "", $iso = "", $boot = "hd", $network_type = "network", $network_name = "default", $network_mac = "", $network_bridge = "", $bandwidth_in = 0, $bandwidth_out = 0, $vnc_port = 5900) {
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// 这一段写的非常骚气请不要在意
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$template = "<domain type='kvm' id='22'>
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<name>{$server}</name>
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<uuid>{$uuid}</uuid>
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<memory unit='KiB'>{$memory}</memory>
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<currentMemory unit='KiB'>{$memory}</currentMemory>
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<vcpu placement='static'>{$vcpu}</vcpu>
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<resource>
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<partition>/machine</partition>
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</resource>
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<os>
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<type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
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<boot dev='{$boot}'/>
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</os>
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<features>
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<acpi/>
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<apic/>
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<pae/>
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</features>
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<cpu mode='host-passthrough' check='none'/>
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<clock offset='localtime'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/libexec/qemu-kvm</emulator>
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";
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// 如果设置了磁盘文件
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if($disk !== "") {
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$template .=
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" <disk type='file' device='disk'>
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<driver name='qemu' type='qcow2'/>
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<source file='{$disk}'/>
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<backingStore/>
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<target dev='hda' bus='ide'/>
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<alias name='ide0-0-0'/>
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<address type='drive' controller='0' bus='0' target='0' unit='0'/>
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</disk>
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";
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}
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// 如果设置了 ISO 镜像
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if($iso !== "") {
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$template .=
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" <disk type='file' device='cdrom'>
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<driver name='qemu' type='raw'/>
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<source file='{$iso}'/>
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<backingStore/>
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<target dev='hdb' bus='ide'/>
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<readonly/>
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<alias name='ide0-0-1'/>
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<address type='drive' controller='0' bus='0' target='0' unit='1'/>
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</disk>
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";
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}
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// 判断网络类型，选择不同的标签
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$tag_name = "network";
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if($network_type !== "network") {
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$tag_name = "name";
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}
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$template .=
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" <controller type='usb' index='0' model='piix3-uhci'>
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<alias name='usb'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
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</controller>
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<controller type='pci' index='0' model='pci-root'>
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<alias name='pci.0'/>
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</controller>
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<controller type='ide' index='0'>
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<alias name='ide'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
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</controller>
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<interface type='{$network_type}'>
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<mac address='{$network_mac}'/>
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<source {$tag_name}='{$network_name}' bridge='{$network_bridge}'/>
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";
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// 如果设置了最大宽带速率
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if($bandwidth_in !== 0 && $bandwidth_out !== 0) {
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$template .=
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" <bandwidth>
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<inbound average='{$bandwidth_in}'/>
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<outbound average='{$bandwidth_out}'/>
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</bandwidth>
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";
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}
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$template .=
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" <target dev='vnet0'/>
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<model type='virtio'/>
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<alias name='net0'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
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</interface>
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<input type='mouse' bus='ps2'>
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<alias name='input0'/>
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</input>
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<input type='keyboard' bus='ps2'>
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<alias name='input1'/>
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</input>
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<graphics type='vnc' port='{$vnc_port}' autoport='yes' listen='0.0.0.0' keymap='en-us'>
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<listen type='address' address='0.0.0.0'/>
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</graphics>
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<video>
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<model type='cirrus' vram='16384' heads='1' primary='yes'/>
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<alias name='video0'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
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</video>
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<memballoon model='virtio'>
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<alias name='balloon0'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
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</memballoon>
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</devices>
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<seclabel type='dynamic' model='dac' relabel='yes'>
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<label>+9869:+9869</label>
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<imagelabel>+9869:+9869</imagelabel>
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</seclabel>
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</domain>";
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@file_put_contents(__DIR__ . "/{$server}.xml", $template);
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$this->uploadFile(__DIR__ . "/{$server}.xml", $this->libpath . "/{$server}.xml");
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@unlink(__DIR__ . "/{$server}.xml");
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}
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public function createDisk($name, $type, $size) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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$this->runCommand("mkdir " . $this->libpath . "images/{$name}/");
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return $this->runCommand("qemu-img create -f {$type} " . $this->libpath . "images/{$name}/{$name}.{$type} {$size}");// $this->runCommand("qemu-img create -f {$type} {$name} {$size}");
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}
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public function attach_disk($server, $name) {
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if(!$this->conn) {
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throw new NoConnectionException();
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}
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return $this->runCommand("virsh attach-disk {$server} " . $this->libpath . "images/{$name} vdb --cache none");
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}
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public function setPermission($name) {
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$data = $this->runCommand("chmod -R 777 " . $this->libpath . "images/{$name}/");
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$data = $this->runCommand("chmod -R 777 " . $this->libpath . "{$name}.xml");
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return $data;
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}
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public function randomMac() {
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return "0e:37:6a:" . implode(':', str_split(substr(md5(mt_rand()), 0, 6), 2));
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}
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/**
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*
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* uploadFile 将本地文件上传到服务器
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*
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* @param $local 本地文件和路径
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* @param $remote 远程文件和路径
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*
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*/
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public function uploadFile($local, $remote) {
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$sftp = ssh2_sftp($this->conn);
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$stream = @fopen("ssh2.sftp://{$sftp}{$remote}", 'w');
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if (!$stream) {
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throw new Exception("Could not open file: {$remote}");
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}
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$data = @file_get_contents($local);
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if ($data === false) {
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throw new Exception("Could not open local file: {$local}");
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}
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if (@fwrite($stream, $data) === false) {
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throw new Exception("Could not send data from file: {$local}");
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}
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@fclose($stream);
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}
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} |