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chapter_01.md

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Chapter 1

Page 6

The code example has two typos:

  • Line 1: user { 'david' should instead be user { 'david':
  • Line 2: uid => '123' should instead be uid => '123',

Pages 7-8

The code example should be as follows:

user { 'exampleapp':
  uid => '1234',
  gid => '123',
}
group { 'exampleapp':
  gid => '123',
}
file { '/opt/exampleapp/':
  ensure => directory,
  owner  => 'exampleapp',
  group  => 'exampleapp',
  mode   => '0755',
}
file { '/etc/exampleapp/':
  ensure => directory,
  owner  => 'exampleapp',
  group  => 'exampleapp',
  mode   => '0750',
}

Page 10

The sentence ending,

... modules provide sharable and reusable single-use technical installations.

should read,

... modules provide sharable and reusable single-use technical implementations.

Page 11

The code examples have one typo each:

profile::os_security:email_enabled: true should instead be: profile::os_security::email_enabled: true

profile::exampleapp:uid: '1235' should instead be: profile::exampleapp::uid: '1235'

📓 The sentence,

One of the most important points of creating these patterns is to avoid hardcoded values in your modules.

conflicts somewhat with the sentence from chapter 9,

The first key thing is if the data doesn't vary over nodes and it's only used once, the simplest thing is to hardcode the data in Puppet code ...

Page 15

The code example has two typos:

  • Line 2 :git => 'https://github.com/exampleorg/exampleapp' should instead be :git => 'https://github.com/exampleorg/exampleapp.git',

📓 The sentence,

Normally, this means a minimum of a development environment and a production environment. So, changes can be tested against servers in development, and then successfully tested ones can be deployed to production.

should instead be,

Normally, this means a minimum of a development environment and a production environment to test changes against servers in development, with successfully tested ones subsequently deployed to production.

📓 The reference to the latest version of Puppet should be changed from 7 to 8. All installation URIs appear to use Puppet 8 even though the Azure lab installs Puppet 7.