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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 file resource type will return mtime and ctime."

A block of code is set as follows:

node 'agent' {
$packages = [ 'apache2', 'libapache2-mod-php5', 'libapache2-mod-passenger', ]
package { $packages:
ensure => 'installed',
before => Service['apache2'],
}
service { 'apache2':
ensure => 'running',
enable => true,
}
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

service { 'puppet': enable => false }
cron { 'puppet-agent-run':
user => 'root',
command =>
'puppet agent --no-daemonize --onetime --
logdest=syslog',
minute => fqdn_rand(60),
hour => absent,
}

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

puppet:///modules/ntp/ntp.conf
puppet:///modules/my_app/opt/scripts/find_my_app.sh

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: "If you are looking for a module that will enhance your agents through additional resource types and providers, look for the Types tab on the module details page. "

Warnings or important notes appear like this.
Tips and tricks appear like this.
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