Simplifying role assignments in Bicep with roleDefinitions()

This article discusses the new roleDefinitions() built-in function in Bicep v0.42.1, which eliminates the need for hardcoded GUIDs in role assignments. Previously, developers had to use GUIDs from AzAdvertizer or maintain shared variable files. The new function allows referencing Azure roles by name directly in Bicep templates, making code self-documenting, cleaner, and easier to maintain. It also provides full IntelliSense support in VS Code and removes external dependencies. The article includes before-and-after code examples and explains the quality-of-life benefits for Azure infrastructure-as-code development.