Ansible Jinja2 template explained - Part-11

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You may manage your infrastructure as code using Ansible, a well-liked configuration management and automation tool. The ability to use templates to produce configuration files dynamically is one of Ansible's core capabilities. Ansible frequently uses Jinja2, a potent templating engine, to produce templates.

We will examine Ansible Jinja2 templates in this blog article, their functionality, and practical use.

What do Ansible's Jinja2 templates represent?

With the help of the quick, adaptable, and safe templating engine Jinja2, you may create dynamic content in your configuration files. It offers a syntax that is simple to use and understand and is based on the Python programming language.

Ansible creates configuration files for the systems it manages using Jinja2 templates. Variables, loops, and conditionals are all allowable in the templates, allowing you to produce configuration files dynamically based on the system's status at any given time.

How do Ansible's Jinja2 templates operate?

Ansible's Jinja2 templates are straightforward text documents that include placeholders for the dynamic content that will be produced by Ansible. Curly braces enclose the placeholders, which are known as variables.

Ansible loads the templates and replaces the variables with their values when a playbook is run. Different sources, such inventory files, group variables, host variables, or facts, can provide the values.

Ansible's Jinja2 templates additionally enable loops and conditionals, allowing you to create configuration files with more complexity. For instance, depending on the number of hosts in a group, loops can be used to generate multiple configuration blocks.

In what ways can Ansible use Jinja2 templates?

You must first build a template file in order to use Jinja2 templates in Ansible. Any text file with the.j2 extension can serve as the template file. You can utilize variables, loops, and conditionals as necessary in the template file.

▬▬▬▬▬▬ ⭐️ Time Stamps ⭐️ ▬▬▬▬▬▬
0:00 Intro
0:07 What is Jinja2 template?
0:35 How to create Jinja2 template?
01:05 Interpolation in Jinja2 template
01:56 How to import/call Jinja2 template?
03:57 Demo


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