Terraform a shallow dive in

The talk is an intro to Hashicorp's Terraform provisioning tool to aid in the move toward defining one’s infrastructure as code. We'll dive into resources, providers, provisioners and more concepts of Terraform.

Transcript

1. a shallow dive in SQUAMTECH Presented by: Kevin Neufeld Terraform HashiCorp
2. What is Terraform? • Open source multi-service provisioning tool
 create complex environments across public cloud providers (e.g., AWS, Azure, Google Cloud, DigitalOcean) and private cloud and virtualization platforms (e.g. OpenStack, VMWare, Kubernetes) • Define your infrastructure as code
 configuration files can be in HCL or JSON • Provides Lifecycle Management
 create, read, update/versioning/drift re-alignment, and destroy
3. The Basics: Providers • “Provide” cloud, multi-service support • Responsible for managing the lifecycle of their RESOURCES: CRUD • eg. azure, aws, gcp, cloudflare … • Required settings: Api key; URL, location
4. The Basics: Resources • Provider specific Resources • Components of your infrastructure • Can customize lifecycle: create_before_destroy, prevent_destory, ignore_changes
5. The Basics: Provisioners • Additional configuration per Provider/Resource • Two-types creation and destroy time • Multiple provisioners • Common one: remote-exec, file, chef… • desired state
6. The Basics: Variables • Typed: string, list, map • Inputs and local • Set from CLI args, files: JSON, HCL • Set from environment variables TF_VAR_{name}
7. The Basics: Outputs • Typed: string, list and map • Sensitivity • Console or JSON • Essential part of module
8. The Basics: Modules • Group of resources • Needs inputs and should return outputs • Modules everywhere….
9. The Basics: State • Generated file • Backend Storage: file is Local by default • Common Remotes: azure, s3, terraform enterprise
10. Simple Demo
11. Things of Interest
12. Books Terraform: Up & Running by Yevgeniy Brikman https://www.terraformupandrunning.com/ Articles and Links Gruntwork: • https://blog.gruntwork.io • GitHub: Modules and tools (terragrunt, terratest)
 https://github.com/gruntwork-io CloudPosse: • Github: Modules https://github.com/cloudposse
13. Near Future
14. • Improve JSON support • 1st class expressions: “${var.name}” >> var.name • For expressions (loops) • Dynamic blocks • Conditional improvements • Biggest — Collaboration for Everyone. TFE Free tier Terraform 0.12
15. Terraform 0.12 Deep Dive: Why HCL 2.0 and Remote Plan & Apply? Tuesday, December 11 2018 from 1:00 pm - 2:00 pm: Goto https://www.hashicorp.com/events to register for the webinar.
16. That’s a wrap! Questions