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

Creating e-mail alerts


Although you can view your Sensu alerts using the Uchiwa panel, it's unlikely that you will have your eyes glued to the TV at all times. Instead, you need to give Sensu the ability to alert you in a more interactive fashion, and one of the most tried and trusted methods is via e-mail. In today's world of laptops, Smartphones and tablets, it's a rare time indeed when you are not able to receive e-mails.

This recipe will show you how to configure the Sensu e-mail plugin to allow you to receive e-mails whenever an alert is triggered.

Getting ready

For this recipe, you will need a configured Sensu server and Sensu client. You should also have at least one check configured. You will also need an SMTP server that can relay mail. You should also have installed the prerequisite packages as detailed in the recipe Installing check prerequisites.

How to do it…

Let's create an e-mail alert:

  1. First, you can use Ruby's gem to install the mail plugin using the following command:

    $ gem install...