Although Ansible has a low learning curve, obviously there’s always a big difference between learning on your own versus working on a medium to large scale size (enterprise) projects. Today’s post will be related to a common error in Ansible known as
The error is pretty much self-explanatory, so you might need to check if this specific variable or multiple vars are loaded by any of
vars_file. It also depends on the approach on how you organize hosts and group variables. For best practices Organizing host and group variables.
A few common examples on how to include vars:
Example 1. Load variables using
vars_file from file (works on playbook level only).
--- - hosts: host_group_1 vars_files: - some_vars_file.yml roles: - role: role_1 ...
Example 2. Load variables using
include_vars on a task level.
--- - hosts: host_group_1 tasks: - name: task 1 include_vars: some_vars_file.yml ...
Example 3. You could also do a combination.
--- - hosts: host_group_2 vars: ansible_python_interpreter: /usr/bin/python3 vars_files: - some_vars_file.yml roles: - role: role_2
Note(s): Obviously, there’s a difference between
include_vars which will be described more into details in one of the following posts.
And if you got any unresolved
AnsibleUndefinedVariable errors, please share them with me in the comment section below. On a side note, follow our official channel on Telegram.