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Ansible

 

Course curriculum

Ansible

 1. Introduction

• Why configuration management is a critical part of any DevOps team
• Strengths and weaknesses of Ansible
• Web scale
• How Ansible is different from other CM tools like Chef and Puppet
• Getting started with Ansible terminology
• Ansible and YML for describing your environments2. Getting set up
• Some prerequisites
• Getting set up on a Mac
• Getting set up on Linux
• Getting set up on Windows
• Testing with Vagrant
• Using SSH keys to connect to your target nodes
Hands-on Practice Lab: Install Ansible and test connectivity to your test nodes.3. Inventory
• Basic inventory example
• Hosts and groups
Hands-on Practice Lab: Create an inventory file that defines four hosts, two web servers and two database servers, and assign these hosts to groups that describe their function.4. Ansible Playbooks
• A useful directory structure to keep your Ansible code organized
• Using git to manage your Ansible code
• A first look at a playbook to install and configure NTP time synchronization
Hands-on Practice Lab: Create a playbook to install and configure openssh-server on all nodes and make sure it is running.5. Provisioners
• Connecting Ansible to your preferred cloud provider (we’ll use DigitalOcean)
• Creating a new server instance
• Dynamic inventory
• Dynamic inventory on Amazon AWS
• Mixing static and dynamic inventory
Hands-on Practice Lab: Refactor your inventory so that your staging environment is local using Vagrant, and your production environment is built on Digitalocean.

6. Highly available infrastructure with Ansible
• Spec up our inventory and host groups
• Using roles
• Configure our database backend
• Configure our web server front-end
• Configure a replicated filesystem
• Configure centralized logging
Hands-on Practice Lab: Build the sample infrastructure on your local Vagrant environment.

7. Application deployments with Ansible
• Deploying our app from SCM to our local Vagrant environment
• How we would deploy that code to production once tested by QA
• Updating our application
• How Ansible compares to alternatives such as Capistrano
Hands-on Practice Lab: Proceed with deploying our application on your local Vagrant environment.

8. Docker containers with Ansible
• Brief intro to Docker
• The synergy of containerization and automation
• Using Ansible to build Docker containers
• MySQL containers
• Web application containers
• Data storage containers
Hands-on Practice Lab: Adapt your infrastructure to deploy our sample app using Docker.

9. Testing and continuous integration
• Unit, integration and functional testing
• Automating your testing using GitHub and Travis CI
Hands-on Practice Lab: Create some tests for our SSH playbook to make sure there are no syntax errors and that Ansible is configuring nodes as expected.

10. Preparing for Ansible back at work
• Real-world use case: Using Ansible to automate CM and application pipelines through continuous integration, release, deployment and operations
• We’ll review your own environments and processes and evaluate how to best integrate Ansible’s configuration management for your own needs

Ansible

About the course

About the trainer

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Sample resumes

Sample resumes will follow

Faq's