# Day 72 - Infrastructure as Code with Pulumi
[![Watch the video](thumbnails/day72.png)](https://www.youtube.com/watch?v=ph-olCjRXQs)

Welcome to day 72 of the 2024 edition of 90 Days of DevOps!

Today's session is titled "Infrastructure as Code with Pulumi", and it is led by Scott Lowe.

## Video
[![Day 72: Infrastructure as Code with Pulumi](https://img.youtube.com/vi/ph-olCjRXQs/0.jpg)](https://www.youtube.com/watch?v=ph-olCjRXQs)

## Additional Notes

Code for this session, as well as a PDF version of the slides, is available from [the companion repository](https://github.com/scottslowe/2024-90dod-iac-pulumi).

To use the example code, you will need the following:

* The AWS CLI installed and configured for an AWS account (Pulumi doesn't rely on the AWS CLI, but it uses the configuration for connecting to AWS)
* An SSH key pair defined in your AWS account and in your desired region
* The `pulumi` CLI tool installed and logged into a backend (see the slides for more information on Pulumi backends; using [Pulumi Cloud](https://app.pulumi.com) is the easiest and fastest way to get started)
* NodeJS installed
* The `git` CLI tool installed
* _(Optional)_ SSH installed on your system, if you want to be able to connect to the instance provisioned by the Pulumi program

Follow these instructions to run this Pulumi program:

1. Use `git clone` to clone [the companion repository](https://github.com/scottslowe/2024-90dod-iac-pulumi) to your local system.
1. Change into the directory where the repository was cloned.
1. Use `pulumi stack init <name>` to create a new Pulumi stack named `<name>`.
1. Run `npm install` to install the dependencies for the Pulumi program.
1. Run `pulumi config set aws:region <region>` to specify the AWS region where the resources should be created.
1. Run `pulumi config set keypair <keypair-name>` to specify the name of an existing AWS key pair that can be used for SSH access to an EC2 instance.
1. _(Optional)_ Set the desired VPC CIDR block with `pulumi config set vpcNetworkCidr <cidr>`.
1. _(Optional)_ Set the instance type with `pulumi config set <instance-type>`.
1. Run `pulumi up` to instantiate the infrastructure.
1. After the stack has finished provisioning, run `pulumi stack output` to get the IP address of the Flatcar Container Linux instance that was created. You can SSH into this instance to run Docker commands and verify that Pulumi launched a Docker container on this instance.
1. When you're finished, run `pulumi destroy` to tear down all the AWS resources.

Enjoy!