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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.*

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Path Info

Level

Intermediate

Duration

15m

Published

Oct 18, 2019

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'

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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.