Common Terraform Modules

This repository contains common Terraform modules that are used across the Massachussetts Digital Services infrastructure.

Each module should have:

• A README.md describing what the module does and how to use it.
• A main.tf file.
• A variables.tf file, if it takes input variables.
• An outputs.tf file, if it produces outputs.

Packer

This repository uses Packer to build custom AMIs. To rebuild an AMI:

packer build packer/ecs_ssm.json
# Packer will build the AMI and output the ID.

Development Workflow

These Terraform modules are used by other Terraform code. Development happens in the develop branch. Once the code is tested and stable, use the following process to make a release:

• Merge develop to master
• Update the changelog to categorize items as being in the correct release. Commit this change directly to master.
• Tag a new release using Semantic versioning (breaking changes are a major release).
• Merge master back to develop