Ansible · Configuration management · Debian · Debian 8

Installing and configuring Ansible on Debian Jessie

Ansible is shipped with Debian through the official repository. The Ansible version available through Debian repository is 1.7.

In this article let’s assume the following details for the machines

Server – Hostname: server, IP : 172.16.0.10

Node1 – Hostname: node1, IP : 172.16.0.11

Node2 – Hostname: node2, IP : 172.16.0.12

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Raspberry Pi · Raspbian

Installing Raspbian Jessie on Raspberry Pi

Raspbian is a free Operating system for Raspberry Pi based on Debian. The latest version is codenamed Jessie. There are 2 flavours of Raspbian – Raspbian Jessie Pixel and Raspbian Jessie lite.

 

Raspbian is available as prebuilt image from the official repository . The 2 different flavours of Raspbian can be downloaded from the following links

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Linux Distribution · Raspberry Pi

Building a Raspberry pi kiosk

One thing many people want to achieve with a Raspberry Pi is a functioning simple web kiosk. Combined with a touchscreen, it could potentially replace ATM machines. Yes, it’s high time we switched to low cost, secure ATM kiosks based on easily available commodity hardware. ATM machines and Kiosks mostly run a Windows XP (!?) on a machine that’s configured to launch only one application and in the event the application crashes, the system shuts down and sends an alert to the bank staff. This can easily be done with a Raspberry Pi. The system should have no problem delivering the complete set of functionality, should be fairly easy to deploy, maintain and secure on a large scale and hey, Raspberry Pi is so tiny, we’ll be spoilt for space inside the ATM machine. (More cash, Yay!). I’m not even going to elaborate on the savings on electricity (go figure!).

RPi awesomeness
By Chris Sheppard on Flickr

The idea of this exercise is simple. You start the system and you get dumped onto a web browser with a specific site loaded. That’s it. Nothing more, nothing less. If the web browser crashes, the system attempts to restart the browser or dies trying >:D

We also need this kiosk thing to be gentle on system resources. So we’ll use lightweight (albeit effective and powerful) applications. The ingredient list is as follows:

  1. Auto Log-in: nodm
  2. Auto X start: we use a simple .xsession file
  3. Window Manager: We’ll be using the full awesomeness of matchbox
  4. Browser: uzbl. Haven’t heard of it? You should totally check it out.
  5. Splash screen: fbi. Yea I know how that sounds. 😛

Let’s see how to set each one of these babies up

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