From aa493287f3b77aba380e3cd9cf0d8cc39a9fb0da Mon Sep 17 00:00:00 2001
From: myvesta <38690722+myvesta@users.noreply.github.com>
Date: Wed, 9 Nov 2022 16:15:48 +0100
Subject: [PATCH] Create scanps.php

---
 src/deb/for-download/tools/scanps/scanps.php | 58 ++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 src/deb/for-download/tools/scanps/scanps.php

diff --git a/src/deb/for-download/tools/scanps/scanps.php b/src/deb/for-download/tools/scanps/scanps.php
new file mode 100644
index 00000000..7b52064d
--- /dev/null
+++ b/src/deb/for-download/tools/scanps/scanps.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+The script is checking if MySQL/MariaDB server process is up.
+If it's not, it assumes that it was killed by Kernel OOM Killer, and reboots the server, in order to bring the back server to a normal state.
+It can detect 'apt upgrade' process and avoid a reboot.
+*/
+
+function my_exec($command) {
+    $out=array();
+    $ret_no=0;
+    if (strpos($command, " > ")!==FALSE) $command.=" 2> /dev/null";
+    else {
+        if (strpos($command, " 2>&1")===FALSE) $command.=" 2>&1";
+    }
+    $ret = exec($command, $out, $ret_no);
+    return implode("\n", $out);
+}
+
+function is_there($list, $what) {
+    $arr=explode("\n", $list);
+    $c=count($arr);
+    for ($i=1; $i<$c; $i++) if (strpos($arr[$i], $what)!==false) return true;
+    return false;
+}
+
+$list=my_exec("ps -Af");
+if (is_there($list, "apt")) exit; // the server is in upgrading proccess
+
+$search_for1="mysqld";
+$search_for2="mariadbd";
+$v1=is_there($list, $search_for1);
+$v2=is_there($list, $search_for2);
+$sufix="";
+
+if ($v1==false && $v2==false) {
+    echo "- reboot\n";
+    $buffer="- reboot\n".$list;
+    $sufix="_".time();
+    $fp = fopen('/home/cron'.$sufix.'.log', 'w');
+    fwrite($fp, $buffer);
+    fclose($fp);
+    $out=array();
+    $ret_no=0;
+    $uname_arr=posix_uname();
+    $hostname=$uname_arr['nodename'];
+    $email=my_exec("/usr/local/vesta/bin/v-list-user 'admin' | grep 'EMAIL' | awk '{print $2}'");
+    mail($email, 'VPS reboot - '.$hostname, $buffer, "From: ".$hostname." <admin@".$hostname.">");
+    sleep(10);
+    $ret = exec("sudo reboot", $out, $ret_no);
+    exit;
+} else {
+    echo "- mysql ok\n";
+    $fp = fopen('/home/cron.log', 'w');
+    fwrite($fp, "- mysql ok");
+    fclose($fp);
+    exit;
+}