Petr Nepochatykh petqa

Debian ixgbe module compilation

Some OVH dedicated server does not supports installing Debian original kernel due to hardware support issue.

Most common issue is the network adapter card.

Resources

Intel ixgbe linux drivers : https://downloadcenter.intel.com/download/14687
OVH forum : https://forum.ovh.co.uk/showthread.php?5616-Standard-Kernels-with-Ubuntu-Debian&p=73788&viewfull=1#post73788

Installing Prometheus on Ubuntu 16.04

This gist is a compilation of two tutorials. You can find the original tutorials here and here. What should you know before using this? Everything can be executed from the home folder. For easier cleanup at the end you can make directory where you'll download everything, and then just use rm -rf .. Although, you should be careful. If some strange bugs arise unexpectedly somewhere sometimes, just keep in mind that some user names have underscores in them (this is probably nothing to worry about).

Create Users

sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Prometheus Monitoring User" prometheus
sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Node Exporter User" node_exporter
sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Alertm

Adjusting child processes for PHP-FPM (Nginx)

When setting these options consider the following:

How long is your average request?
What is the maximum number of simultaneous visitors the site(s) get?
How much memory on average does each child process consume?

Determine if the max_children limit has been reached.

sudo grep max_children /var/log/php?.?-fpm.log.1 /var/log/php?.?-fpm.log

Install Prometheus on Debian

install gosu

just to not wrestle with sudo and exec

$ sudo apt-get update
$ sudo apt-get install gosu

Create prometheus user

Более удобной и актуальной версией является эта статья с использованием `traefik`

https://gist.github.com/dancheskus/365e9bc49a73908302af19882a86ce52

Certbot и nginx, как обратный прокси в Docker (пример с 2 react проектами)

В результате будет 2 react проекта на 1 сервере доступных по разным ссылкам

	server {
	listen 80 default_server;
	server_name domain.com *.domain.com;
	root /srv/www/domain.com/public;

	access_log /srv/www/domain.com/log/access.log;
	error_log /srv/www/domain.com/log/error.log;

	location / {
	index index.php;

	function artabr_menu_no_link($no_link){
	$in_link = '!<li(.?)class="(.?)current-menu-item(.?)"><a(.?)>(.*?)</a>!si';
	$out_link = '<li$1class="\\2current-menu-item\\3">$5';
	return preg_replace($in_link, $out_link, $no_link );
	}
	add_filter('wp_nav_menu', 'artabr_menu_no_link');

	# source: https://forum.proxmox.com/threads/removing-deleting-a-created-cluster.18887/
	#/bin/sh
	# stop service
	systemctl stop pvestatd.service
	systemctl stop pvedaemon.service
	systemctl stop pve-cluster.service
	systemctl stop corosync
	systemctl stop pve-cluster

	# edit through sqlite, check, delete, verify