This repo should provide a simple custom Terraform provider with the bare minimum to exemplify the declarative approach Terraform allows us to use when managing systems

This a simple stateful app that holds a list of integers. Its api only allows individual changes on the integers held by the app. Also the order of the numbers will be defined by the sequence used to add them.

So, if the user wants a specific list of numbers on the app, APIs need to be called in a determined way for the desired outcome be achieved.

The available API calls are present on the Postman collection inside /python-app directory

All the relevant code is in the /terraform-provider-python-app directory. Here is a small description of each subdirectory:

• api/ has the http client to interact with the service
• provider/ contains the code to define the terraform provider and its resource. Here is where the terraform resource numbers is defined
• terraform/ has a the terraform code to test the provider

The build.sh builds the provider and moves it to a specific local path so that terraform can find it. Use it before trying to play with the terraform code.

You can check a more extensive tutorial from Hashicorp here. And there are also good tutorials out there, like this one