A large part of embracing DevOps involves embracing automation. Over the last decade we have seen the emergence of “as Code” — Build-as-Code, Configuration-as-Code and Infrastructure-as-Code. The benefits to utilizing such tools are huge! We can codify the state of the world around our applications, giving us the ability to treat everything that our code needs like we treat the code itself. Version control, release management, tagging, even rolling backs are now possible.
Terraform, an open-source tool from HashiCorp allows us to build, control and modify our infrastructure. Terraform exposes a Domain-specific language (DSL) that we can use to express what our infrastructure should look like. Terraform can work with all the major cloud providers, including Amazon AWS, Google GCP and Microsoft Azure.
We will be using AWS as our playground for this workshop
Agenda
- The place for, and benefits of “Everything as Code” alongside GitOps
- Terraform's architecture
- Terraform 101
- Introduction to HCL
- What are providers?
- Initializing terraform and providers
- Dive right in! Creating your first resource in AWS using Terraform
- Understanding references, dependencies
apply-ing terraform- Variables and the HCL type-system
- Using
dataandoutputin your terraform scripts - Understanding how Terraform manages state
- Using S3 as a backend
- DRY with Terraform modules
- Collaboration using Terraform
- Terraform ecosystem, testing, and GitOps
- Closing arguments, final Q/A, discussion
Instructions
Please visit https://github.com/looselytyped/terraform-workshop/ for detailed instructions. They might seem a tad arduous but it's not as bad as it looks :)
Zero fluff.