- Lab
- A Cloud Guru
Understand Core Components of Ansible - Variables
Variables are another thing that makes Ansible powerful. By being able to write generic commands, with decision trees based on variables, we can automate almost anything. This lab will walk through a couple of things we can do with variables to help burn in the concept. *This course is not approved or sponsored by Red Hat.*
Path Info
Table of Contents
-
Challenge
Write a Playbook That Removes `tcpdump` When a Server's Name Does Not Contain `admin`
Your playbook should look something like this:
--- # Variables playbook - name: This playbook will remove tcpdump (if installed) from servers without admin in their hostnames hosts: all become: yes tasks: - name: Remove tcpdump from all but admin servers yum: name: tcpdump state: absent when: "'admin' not in inventory_hostname" -
Challenge
Modify That Playbook to Install Git on RedHat Servers
Your additional lines should look something like this:
- name: Make sure git is installed only on Red Hat servers yum: name: git state: present when: ansible_facts['os_family'] == 'RedHat'
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.
