Hi JukkaKoskelin , thanks for the great question! Azure Deployment Environments (ADE) actually consumes those infra-as-code templates and empowers devs to create the app infrastructure required to deploy their apps.
You can attach a repo (GitHub or ADO for now) as a Catalog in the service and the infra-as-code templates can live in the source control repository. We believe this would encourage inner sourcing of templates, while keeping the curation control with the central teams. In fullness of time, we plan to even support the ability to provide either template specs or blueprints as curated infra-as-code templates to developers.
Additionally, ADE provides comprehensive permission controls to pre-configure necessary permissions for developers to create and destroy their own environments without providing broad contributor access to create resources outside the environment.
ADE is now available in public preview and you can get started with the service directly in the Azure portal.
Please feel free to directly message me if you need any assistance in getting started with the service. Thanks again and look forward to hearing your feedback! 