ekreutz

Ansible variable precedence

Source: http://docs.ansible.com/ansible/latest/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable

From least to most important

• command line values (for example, -u my_user, these are not variables)
• role defaults (defined in role/defaults/main.yml)
• inventory file or script group vars
• inventory group_vars/all

DavidWells

Aligning images

This is a guide for aligning images.

See the full Advanced Markdown doc for more tips and tricks

left alignment

pymander

<?php

namespace App\Model;

use Nette;
use Aws\S3\S3Client;

class S3Uploader
{
    /** @var \Aws\S3\S3Client */

rotexdegba

# Make sure you have already installed apache and mysql;

# install rails
# https://help.ubuntu.com/lts/serverguide/ruby-on-rails.html
sudo apt install rails

# install comman dependencies
sudo apt-get install build-essential patch ruby-dev zlib1g-dev liblzma-dev make libmysqlclient-dev imagemagick \
libmagickcore-dev libmagickwand-dev

jamesmacwhite

Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

Single file conversion example

lukechilds

get_latest_release() {
  curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api
    grep '"tag_name":' |                                            # Get tag line
    sed -E 's/.*"([^"]+)".*/\1/'                                    # Pluck JSON value
}

# Usage
# $ get_latest_release "creationix/nvm"
# v0.31.4

gwillem

# Add this snippet to the top of your playbook. 
# It will install python2 if missing (but checks first so no expensive repeated apt updates)
# gwillem@gmail.com

- hosts: all
  gather_facts: False
  
  tasks:
  - name: install python 2
    raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)

netson

PSAD and UFW

Table of Contents

• What are we doing here?
• What is PSAD?
• What is UFW?
• Using PSAD and UFW
• Configure UFW logging rules
• Log prefix

bazo

<?php

use Nette\Application\UI\Presenter;
use Nette\DI\CompilerExtension;



/**
 * Auto register presenters as services
 * @author Martin Bažík <martin@bazo.sk>

milo

<?php

/**
 * GitHub webhook handler template.
 * 
 * @see     https://docs.github.com/webhooks/
 * @author  Miloslav Hůla (https://github.com/milo)
 */

$hookSecret = 's.e.c.r.e.t';  # set NULL to disable check