Infrastructure as Code, tools, benefits, paradigms and more. Presentation from DigitalOnUs DevOps: Infrastructure as Code Meetup (September 20, 2018 - Monterrey Nuevo Leon MX)

1. Partner of:
DevOps Meetup
Infrastructure as code (IAC)

2. Partner of:
Who would be interested
in this meetup?

3. Partner of:
• SysAdmins
• Operations Engineers
• Release Engineers
• Site Reliability Engineers
• DevOps Engineers
Who would be interested?
• Infrastructure Developers
• Full Stack Developers
• Engineering Managers
• IT Professors
• IT Students

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5. Partner of:
What is infrastructure as
code (IaC)?

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The idea behind infrastructure as code (IaC) is that you write and execute
code to:
• Define
• Deploy
• Update
your infrastructure
What is infrastructure as code (IaC)?

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Categories of IaC tools

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Categories of IaC Tools
Ad Hoc Scripts Configuration Management Tools

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Categories of IaC Tools
Server Templating Tools Provisioning Tools

10. Partner of:
• CI/CD Pipeline

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Benefits of IaC

12. Partner of:
Benefits of infrastructure as code (IaC)
• Self-service
• Speed and safety
• Documentation
• Version control
• Validation
• Reuse
• Happiness

13. Partner of:
Tools and Use Cases

14. Partner of:
@DigitalOnSocial
Bernardo Garza - Terraform
DevOps Team
DigitalOnUs
Francisco Rodriguez - Packer
Martín Guerrero - Docker
Marín Salinas – Vagrant and Ansible

15. Partner of:
Packer

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• Is easy to use and automates the
creation of any type of machine image.
• It embraces modern configuration
management by encouraging you to use
automated scripts to install and configure
the software
• Packer brings machine images into the
modern age, unlocking untapped
potential and opening new opportunities.
HashiCorp Packer

17. Terminal
Partner of:
"builders": [
{
"type": "amazon-ebs",
...
}
],
"provisioners": [
{
"type": "puppet-masterless",
...
}
],
"post-processors": [
{
"type": "atlas",
"artifact": "hashicorp/logstream",
"artifact_type": "amazon.ami"
}
]

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19. Partner of:
Demo Time

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Ansible with
Vagrant

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Ansible and Vagrant
Vagrant: Is a tool for building and
managing virtual machines
environments in a single
workflow.
Ansible: Is a tool that automates
provisioning, configuration
management and application
deployment. Works over SSH,
Power Shell or remote APIs.

22. Partner of:
Demo Time

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24. Partner of:
Demo Ansible with Vagrant
- We are going to create three VMs
with Vagrant using Vagrantfile.
- Connect Ansible to these VMs and
assign roles.
- Check connection and configure
Nginx in one VM.
- Copy local file to all VMs in a
single step.

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Infrastructure paradigms:
Mutable vs Immutable

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Infrastructure paradigms:
Mutable vs Immutable

27. Partner of:
mutable infrastructure
Servers are continually updated
and modified in place

28. Partner of:
Immutable infrastructure
Servers are never modified after
they're deployed

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Load balancer with
docker
Source code: https://gitlab.com/slackmart/webserver-example

30. Partner of:
Demo Time

31. Partner of:
Terraform

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Terraform is an open source infrastructure as code tool. Terraform was
developed by HashiCorp company who is based in San Francisco, CA. We
can also say that Terraform is a tool for building, changing, and versioning
infrastructure safely and efficiently.
What is Terraform

33. Partner of:
• Day 1: Where we haven't actually
started running anything. How do we
go from running nothing to run
something.
• Day 2: When we already have an
infrastructure and we are trying to
evolve it, changing it over time or
adding and removing new services.
Provisioning challenges

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Terraform has these three principal simple steps:
• Init
• Plan
• Apply
Terraform principles

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Terraform sample code

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Terraform can be used to manage multi-cloud It
can combine multiple provides in a single
workflow which is a very nice feature.
Terraform provides one consistent workflow for
developers and operators to provision resources
on any infrastructure provider. One workflow to
learn increases user productivity, and also
reduces organizational risk as that becomes one
workflow to secure, one workflow to audit, and
one workflow to govern.
Multi-cloud

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• Right now, there are more than 100 providers and those individually
can manage over a thousand resources. Providers are responsible to
provide API interaction. You can find the list of providers on the
terraform website.
Terraform providers

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Demo Time

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Thank You