Intro to ansible

1. What's Ansible?

2. What’s Ansible?
Ansible is a radically simple IT automation
engine.
• Opensource tool
• Written in Python
• Don’t need an agent
• YAML
• SSH

3. Used for?
• Cloud provisioning
• Configuration
• Management
• Deployment
• Intra-service orchestration

4. Installation

5. Ansible vs The
Others
There are other similar tools like: Chef,
Puppet, Fabric, etc.
Compared to Ansible, those tools are
more complex because they need agents
or have their specific configuration
language which makes it difficult to work
with them.

6. Ansible's Structure
Ansible's structure is basically organized in
two files and modules.
Files:
• Inventory
• Playbook
Modules
:
• Core
• Extra

7. Inventory
It's a file called “hosts” that contains the
group of hosts for provisioning

8. Playbooks
• Playbooks defines your deployment steps
and configuration.
• They are modular, can contain variables and
can be used to orchestrate steps across
multiple machines
• They are config files written in simple YAML
• They contain multiple tasks
• And they make use of "mature" modules

9. Playbooks
Hosts - Define a group of hosts
Vars - Define context variables
Tasks - Define tasks to be run on hosts
Notify - Call a specific handler when a task
runs successfully.
Handlers - They are like tasks, but they only
run by a notifier.

10. Simple Playbook

11. Playbook

12. Running a Playbook

13. Core Modules
Core modules are a set of modules to integrate
with a many services like EC2 module, to
create, terminate, start and stop an AWS EC2
instance or Docker module to manage Docker
containers, etc.

14. How Ansible works?

15. How Ansible works?

16. Core modules

17. Core modules

18. Extra modules
Extra modules are a set of modules to integrate
with many services that have a lot of features
like SQS management queue or MySQL
slave/master replication management.

19. Extra modules

20. Ansible Tower
Ansible Tower is a proprietary tool that provides
a complete dashboard to manage your
provisioning in real-time with logs, playbooks
scheduling, remote commands execution,
visual inventory management and many other
features. It’s free for up to 10 nodes. There is
also a Trial version for 30 days.

21. Ansible Tower

22. Questions?