The Dynamic Block in Terraform is one of the most useful options for making your code dynamic. Previously, we could use dynamic conditions like ‘for_each’ and ‘if’ conditions at the resource block level. However, with the dynamic block, we can also apply the same logic to resource sub-blocks or nested blocks, such as ‘Identity’ in an Azure SQL Server resource block.
Example of Resource Block and Nested Block
The dynamic block is very useful in a couple of scenarios for creating error-free, dynamic code that can iterate based on the variable values you are passing, such as: