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Welcome !

Problem statement ( chain )

  • IaC is a must nowadays
  • Complexity of the IaC demands fell defined scoop
  • IaC scooping create isolation bubbles
  • Bridges are created with all kind of different tech

In other words ( picture )

xkcd

Examples

  • Layers of the company
    • Networking stacks
    • Application
    • Core infra
  • Layers of the application
    • DB
    • App
    • CDN

Possible solutions in AWS CFN

  • Manual wire it together
  • CFN import export ( AWS native )
  • SSM Parameters ( Hacky but we use it a lot)
  • Maintain an asset management solution like an API

How others do it ?

Terraform Datasources:

Data sources allow data to be fetched or computed for
use elsewhere in Terraform configuration. Use of data sources allows
a Terraform configuration to make use of information defined
outside of Terraform, or defined by another separate
Terraform configuration.

Can we steal the idea ?

Sure we can with CFN CR (https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-custom-resources.html)

Show me the code !