public function authenticate()
{
$resource = libvirt_connect("qemu+tcp://{$this->hostname}/system", $this->readonly, [VIR_CRED_AUTHNAME => $this->username, VIR_CRED_PASSPHRASE => $this->password]);
if (!is_resource($resource)) {
throw new \Exception("Falha na authenticação: " . libvirt_get_last_error());
}
return $resource;
}
/**
* write last libvirt error to log file
*/
function ace_kvm_log_last_error()
{
$str = libvirt_get_last_error();
if ($str !== NULL) {
$str = date("[Y/m/d] H:i:s : ") . $str;
file_put_contents(_ACE_LIBVIRT_LOG_FILE_, $str . "\n", FILE_APPEND | LOCK_EX);
}
}
/**
* Domain Resource
*
* @param $domain
* @return resource
* @throws \Exception
*/
public function getDomainResource($domain)
{
$domain = libvirt_domain_lookup_by_name($this->resource, $domain);
if (is_resource($domain)) {
return $domain;
}
$domain = libvirt_domain_lookup_by_uuid_string($this->resource, $domain);
if (is_resource($domain)) {
return $domain;
}
throw new \Exception("Dominio informado não existe: " . libvirt_get_last_error());
}
$list = libvirt_list_domains($libvirt->conn);
$size = sizeof($list);
for ($i = 0; $i < $size; $i++) {
if (strlen(strstr($list[$i], $courseid)) > 0) {
echo "<div id=\"uppervm\">";
echo "<div id=\"vmname\">" . $list[$i] . "</div>";
echo "<div id=\"vmscreen\">";
if ($libvirt->is_active($list[$i])) {
echo "<img src=\"images/running.jpg\" height=95% style=\"border:2px solid gray;border-radius:10px;\">";
} else {
echo "<img src=\"images/vm.png\" height=95% style=\"border:2px solid gray;border-radius:10px;\">";
}
echo "</div>";
echo "<div id=\"vminfo\">";
$res = libvirt_domain_lookup_by_name($libvirt->conn, $list[$i]) or die(libvirt_get_last_error());
$info = libvirt_domain_get_info($res) or die(libvirt_get_last_error());
$result = mysql_query("select template_info.os from template_info,course_info where template_info.templatename=course_info.template && course_info.courseid in \t\t\t\t\t\t\t(SELECT courseid from vm_info where vmname='{$list[$i]}')");
$row = mysql_fetch_array($result);
echo "Max memory:\t" . $info['maxMem'] . " KB<br>";
echo "Used Memory:\t" . $info['memory'] . " KB<br>";
if (!$libvirt->is_active($list[$i])) {
echo "State:\t Shutdown" . "<br>";
} else {
echo "State:\t Running" . "<br>";
}
echo "CPU(s):\t" . $info['nrVirtCpu'] . "<br>";
echo "</div><div id=\"vmop\">";
echo "<button type=\"submit\" name=\"ON\" value=\"{$list[$i]}\"><img src=\"images/poweron.png\" alt=\"\" style=\"width:11%;height:10%;\"></button>";
echo "<button type=\"submit\" name=\"OFF\" value=\"{$list[$i]}\"><img src=\"images/poweroff.png\" alt=\"\" style=\"width:11%;height:21%\";></button>";
echo "</div></div>";
}
function domain_start($dom)
{
$dom = $this->get_domain_object($dom);
if ($dom) {
$ret = libvirt_domain_create($dom);
$this->last_error = libvirt_get_last_error();
return $ret;
}
$ret = libvirt_domain_create_xml($this->conn, $dom);
$this->last_error = libvirt_get_last_error();
return $ret;
}
$vmname = $_POST['start'];
$vmname = trim($vmname);
$user = trim($user);
if (strlen(strstr($vmname, $user)) > 0) {
$password = "";
$username = "";
$ip = "";
$result = mysql_query("select template_info.username,template_info.password from template_info,course_info where template_info.templatename=course_info.template && course_info.courseid in (SELECT courseid from vm_info where vmname='{$vmname}')");
if (mysql_num_rows($result) >= 0) {
$row = mysql_fetch_array($result);
$username = $row['username'];
$password = $row['password'];
}
$output = $libvirt->domain_start($vmname);
if ($output == "0") {
$output = libvirt_get_last_error();
}
if (strpos($output, 'started') !== false || strpos($output, 'already') !== false) {
$time_start = microtime(true);
$ip = $libvirt->domipaddr($vmname);
$time_end = microtime(true);
$output .= "<br>Use '<b>ssh {$username}@{$ip}</b>' to access your Virtual Machine<br>";
$output .= "Default Password for VM was/is <b>\"{$password}\"</b>. Please change your password.";
if (strpos($output, 'started') !== false) {
$boottime = sprintf('%.2f', $time_end - $time_start);
$output .= "<br>VM took <b>{$boottime}</b> seconds to boot.";
$log = "[" . date(DATE_RFC2822) . "] BOOT TIME: {$vmname} took {$boottime} seconds to boot." . PHP_EOL;
error_log("{$log}", 3, "stats.log");
$log = "[" . date(DATE_RFC2822) . "] IP Address: {$vmname} IP Address is {$ip}." . PHP_EOL;
error_log("{$log}", 3, "stats.log");
}
if ($redis->ping()) {
$num = $redis->get("cluster:num-nodes");
$res = null;
for ($i = 0; $i < $num; $i++) {
$ip = $redis->get("cluster:node" . $i);
echo "<div id=\"widget\" style=\"float:left;font-size:100%;width:30%;margin-left:2.2%;\">";
echo "<div id=\"strip\">";
echo "NODE :" . $ip;
echo "<button type=\"button\" class=\"primary\">-</button>";
echo "</div>";
echo "<div id=\"widget-main\">";
echo "<table style=\"font:serif;font-size:100%;text-align:left;\">";
$uri = "qemu+tcp://" . $ip . "/system";
$con = libvirt_connect($uri, false);
if (!$con) {
echo libvirt_get_last_error();
}
$info = libvirt_connect_get_information($con);
echo "<tr><th>Hostname</th><td>: " . $info['hostname'] . "</td></tr>";
echo "<tr><th>Hypervisor</th><td>: " . $info['hypervisor_string'] . "</td></tr>";
echo "<tr><th>Max VCPU(s) per VM</th><td>: " . $info['hypervisor_maxvcpus'] . "</td></tr>";
$info1 = libvirt_node_get_info($con);
echo "<tr><th>CPU(s)</th><td>: " . $info1['cpus'] . "</td></tr>";
echo "<tr><th>CPU frequency</th><td>: " . $info1['mhz'] . "</td></tr>";
echo "<tr><th>Architecture</th><td>: " . $info1['model'] . "</td></tr>";
echo "<tr><th>Memory</th><td>: " . $info1['memory'] . "</td></tr>";
echo "<tr><th>Total Number of VM(s)</th><td>: " . $info['num_total_domains'] . "</td></tr>";
echo "<tr><th>Running VM(s)</th><td>: " . $info['num_active_domains'] . "</td></tr>";
echo "<tr><th>Stopped VM(s)</th><td>: " . $info['num_inactive_domains'] . "</td></tr>";
echo "</table>";
echo "</div>";
while ($row = mysql_fetch_array($result)) {
$course = $row['courseid'];
echo "<div id=\"topwidget\" style=\"float:left;\">";
echo "<div id=\"topstrip\">";
echo "VM(s) for {$course}";
echo "<button type=\"button\" class=\"primary\">-</button>";
echo "</div>";
echo "<div id=\"topwidget-main\">";
echo "<table style=\"font:serif;font-size:80%;text-align:left;\">";
$result1 = mysql_query("select * from vm_info where courseid='{$course}'");
if (mysql_num_rows($result1) == 0) {
echo "No student is enrolled in this course<br>";
}
while ($row = mysql_fetch_array($result1)) {
$vm = $row['vmname'];
$a = $libvirt->is_active($vm) or libvirt_get_last_error();
if ($a) {
echo "<tr><th>VM " . $vm . "</th><td>: Running</td></tr>";
} else {
echo "<tr><th>VM " . $vm . "</th><td>: Shutdown</td></tr>";
}
}
echo "</table>";
echo "</div>";
echo "</div>";
}
}
?>
</div>
<?php
if ($option == 3) {