How is version control of modules managed in Terraform?

In Terraform, module version management is done by specifying the version in the source block when connecting a module. Modules are usually stored in the Terraform Registry or in version control systems (Git). To fix a version, syntax such as a tag or branch for Git, or the version parameter for the registry, is used.

Example of connecting a module with a version from the Terraform Registry:

module "vpc" {
  source  = "terraform-aws-modules/vpc/aws"
  version = "3.14.0"
  # other parameters
}

For Git repositories, you can specify a specific tag or branch:

module "my_module" {
  source = "git::https://github.com/username/repo.git//path/to/module?ref=v1.2.3"
}

Thus, version management allows fixing the versions of modules used, ensuring stability and predictability of the infrastructure.