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: "We can include other contexts through the use of the include directive."

A block of code is set as follows:

. . .
dhcp_agents_per_network = 2

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

openstack@controller:~$ cat
export OS_TENANT_NAME=cookbook
export OS_USERNAME=author
export OS_PASSWORD=password
export OS_AUTH_URL=http://controller:35357/v2.0

New terms and

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