Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The configuration files of OSA are stored at /etc/openstack_ansible/ on the deployment host."

A block of code is set as follows:

[computes]  
compute1.example.com  
compute2.example.com  
compute3.example.com  
compute[20:30].example.com

Any command-line input or output is written as follows:

# vagrant up --provider virtualbox
# vagrant ssh

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "To manage security groups, navigate to Compute|Access & Security| Security Group."

Warnings or important notes appear in a box like this.

Tips and tricks appear like this.