Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “As you can see, it is calling a variable called {{ apache_packages }}, which is defined in roles/apache/defaults/main.yml as follows.”

A block of code is set as follows:

- name: "Install apache packages"
  ansible.builtin.apt:
    state: "present"
    pkg: "{{ apache_packages }}"

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

- name: "Install apache packages"
  ansible.builtin.apt:
    state: "present"
    pkg: "{{ apache_packages }}"

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

$ ansible-playbook -i hosts site.yml

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “You can leave the remaining options at their defaults and then click on the Create repository button at the end of the form.”

Tips or important notes

Appear like this.