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Terraform modules encapsulate related resources into reusable, composable packages. A module is simply a directory with .tf files. The root module calls child modules with the module block. Input variable blocks parameterize modules. output blocks exp

Terraform is an infrastructure as code (IaC) tool that provisions cloud resources declaratively. Configuration files use HCL (HashiCorp Configuration Language). The provider block configures cloud providers like AWS, GCP, or Azure. resource blocks def

Terraform state tracks the mapping between configuration and real infrastructure. Remote state backends like S3, GCS, or Terraform Cloud enable team collaboration. DynamoDB provides state locking to prevent concurrent modifications. The terraform_remo