Implementing Modern DevOps

Ansible templates

Templates are another powerful tool from Ansible. They allow us to render configuration files, application properties, and anything that can be stored in a human readable file.

Templates rely heavily on variables and a template engine called Jinja2 , which is used by Ansible to render the templates. First, we are going to install ngnix on our server with a simple playbook:

---- hosts: all user: root tasks: - name: Update sources apt: update_cache: yes - name: Upgrade all packages apt: upgrade: dist - name: Install nginx apt: name: nginx state: present

As you can see, it is very simple:

• Update the apt cache
• Upgrade the system
• Install nginx

Now, just run the preceding playbook using the VM created earlier:

ansible-playbook ...