Book Image

Hands-On DevOps with Vagrant

By : Alex Braunton
Book Image

Hands-On DevOps with Vagrant

By: Alex Braunton

Overview of this book

Hands-On DevOps with Vagrant teaches you how to use Vagrant as a powerful DevOps tool and gives an overview of how it fits into the DevOps landscape. You will learn how to install VirtualBox and Vagrant in Windows, macOS, and Linux. You will then move on to understanding Vagrant commands, discovering its boxes and Vagrant Cloud. After getting to grips with the basics, the next set of chapters helps you to understand how to configure Vagrant, along with networking. You will explore multimachine, followed by studying how to create multiple environments and the communication between them. In addition to this, you will cover concepts such as Vagrant plugins and file syncing. The last set of chapters provides insights into provisioning shell scripts, also guiding you in how to use Vagrant with configuration management tools such as Chef, Ansible, Docker, Puppet, and Salt. By the end of this book, you will have grasped Vagrant’s features and how to use them for your benefit with the help of tips and tricks.
Table of Contents (21 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Troubleshooting a Vagrantfile


A Vagrantfile can be quite a complex collection of configuration options. There are multiple options, such as basic string values, configuration blocks, array values, and much more. It can be quite common to write out a Vagrantfile, go to run vagrant up or a similar command, and be faced with an error.

An example of a Vagrant error after running the vagrant up command is as follows:

Let's dissect the error in the preceding screenshot. The first clue is a reference to the line number Vagrantfile:24; in other words, line 24 of the Vagrantfile. This error also gives us the type of error: syntax error, unexpected tIDENTIFIER, expecting keyword_end # accessing "localhost:8080" will access port on. This could mean that a config block or loop has no end value set, or we have tried to set an incomplete variable.

An easy way to check a Vagrantfile after making any changes and trying to run or provision a Vagrant machine is by using the vagrant validate command. In the following...