Ansible Variables are an important element as they are in other programming languages. This lesson tries to implement the most common scenarios implemented in a day to day Ansible procedures.
In order to understand this lesson properly, a set of steps have been designed to be implemented in the following section.
ENJOY !!!
- Create an inventory file named "inventory" with a group named "myinstance" and your internal instance IP assigned included
- Create a group variables file named "myinstance.yml" in a new folder named "group_vars" with the folowwing variables:
- String variable called "test_string" with random content
- Array variable called "test_array" with a number sequence from 0 to 5
- Dictionary varible called "test_dic" with 2 employees definition (name, id and age)
- Crate a variables file named "vars.yml" in a new folder named "vars" with the folowwing variables:
- String variable called "test_string" with random content (*Important: It has to be different from test_string in myinstance.yml)
- Create a playbook named "variables-playbook.yml" using "myinstance" as a hosts parameter and
<studentxx>as a user. The playbook should use tasks to ensure that the following conditions are met on the managed hosts:- Print test_string variable (*Identify which one is printed)
- Print test_array variable
- Print test_dic variable
- Print the list of sources used as inventory
- Print the connection plugin actually used for the task on the target host
- Print Ansible facts
- Before running your playbook, run the ansible-playbook --syntax-check command to verify that its syntax is correct
- Run the playbook!
- Import "vars.yml" file into the playbook
- Before running your playbook, run the ansible-playbook --syntax-check command to verify that its syntax is correct
- Run the playbook!
For more information, please visit:
- https://docs.ansible.com/ansible/latest/user_guide/playbooks.html
- https://docs.ansible.com/ansible/latest/reference_appendices/special_variables.html
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Asier Cidon - Cloud Consultant