Book Image

DevOps Automation Cookbook

By : Michael Duffy
Book Image

DevOps Automation Cookbook

By: Michael Duffy

Overview of this book

<p>There has been a recent explosion in tools that allow you to redefine the delivery of infrastructure and applications, using a combination of automation and testing to deliver continuous deployment. DevOps has garnered interest from every quarter, and is rapidly being recognized as a radical shift, as large as the Agile movement for the delivery of software.</p> <p>This book takes a collection of some of the coolest software available today and shows you how to use it to create impressive changes to the way you deliver applications and software. It tackles the plethora of tools that are now available to enable organizations to take advantage of the automation, monitoring, and configuration management techniques that define a DevOps-driven infrastructure.</p> <p>Starting off with the fundamental command-line tools that every DevOps enthusiast must know, this book will guide you through the implementation of the Ansible tool to help you facilitate automation and perform diverse tasks. You will explore how to build hosts automatically with the creation of Apt mirrors and interactive pre-seeds, which are of the utmost importance for Ubuntu automation. You will also delve into the concept of virtualization and creating and manipulating guests with ESXi. Following this, you will venture into the application of Docker; learn how to install, run, network, and restore Docker containers; and also learn how to build containers in Jenkins and deploy apps using a combination of Ansible, Docker, and Jenkins. You will also discover how to filter data with Grafana and the usage of InfluxDB along with unconventional log management. Finally, you will get acquainted with cloud infrastructure, employing the Heroku and Amazon AWS platforms.</p> <p>By tackling real-world issues, this book will guide you through a huge variety of tools, giving new users the ability to get up and running and offering advanced users some interesting recipes that may help with existing issues.</p>
Table of Contents (19 chapters)
DevOps Automation Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Installing a Sensu client


Once you have installed the Sensu server, you need to install the Sensu client to run checks and report the data back to the server. The Sensu client subscribes to the RabbitMQ virtual host and listens for checks to be published in a subscription to which the client belongs. When a check is published, the client runs the assigned check and publishes the results back onto the RabbitMQ; from here, the Sensu server then processes the check results.

Getting ready

For this recipe, you will need an Ubuntu 14.04 client to act as the Sensu client and a Sensu server to connect to.

How to do it…

The following steps show you how to install the Sensu Core package and how to configure the Sensu client.

  1. The Sensu Core package used to install the Sensu client includes the client, server, and API package. First we add the Sensu package signing key using the following command:

    $ wget -q http://repos.sensuapp.org/apt/pubkey.gpg -O- | sudo apt-key add -
    

    Then we add the repository:

    $ echo...