Presentation about Terraform on Azure

1. Post HashiConf EU Meetup 07/11/2019
Amsterdam

2. Julien Corioland
• Senior Software Engineer @ Microsoft
• Paris, France
• https://blog.jcorioland.io
• https://github.com/jcorioland
• https://twitter.com/jcorioland

3. Infrastructure as Code
Think about immutable and disposable infrastructure.

4. Pet vs Cattle
Pet Model
• You care so much about
your infrastructure that you
give it lovely names
• Earth, Jupiter, Mars …
• Goals: each server part of
your infrastructure should
be up 24/7
Cattle Model
• You stop naming your
servers and consider it as
“disposable” infrastructure
• front-01, front-02, front-
03…
• Goals: n servers are part of
the infrastructure 24/7

5. Cloud platforms make it possible
All is about automation
Imperative (Bash/PS scripts)
Declarative (ARM, Terraform…)
Idempotency

6. Infrastructure = code
• Stored in the source code repository
(GitHub, Azure Repos…), it’s just text!
• Same lifecycle
• You update the code, you update the
infrastructure
• Continuous Integration / Continuous
Deployment
• Versioning
• Labels / Rollbacks
• Also valid for configuration (configuration as
code)

7. Terraform
Write, Plan, and Create Infrastructure as Code

8. What is Terraform?
• An open source tool/language (HCL) developed by HashiCorp
• Allows to write, plan and create infrastructure as code
• Common language for different providers
• Azure
• AWS
• Google
• Kubernetes
• …
• Same workflow / pipeline
• But different resources!

9. Data Sources
& Resources

10. Terraform
Workflow
Init
Plan
Apply
Destroy

11. Demonstration
Hello Terraform on Azure!

12. Advanced Workloads
• Remote State Storage
• Use Azure Storage or Terraform Cloud as backend
• Share states between teams and CI/CD runs
• Terraform Modules
• Module = container for multiple resources that are used together
• Automated testing
• How do I continuously integrate Terraform Infrastructure as Code ?

13. Demonstration
Terraform on Azure – Reference Architecture
https://github.com/jcorioland/terraform-azure-reference

14. Questions/Follow up
Julien Corioland
@jcorioland