Terraform Provider — Short Notes

• A Terraform provider is a plugin that lets Terraform interact with a platform (AWS, Azure, GCP, Docker, Kubernetes, etc.).
• Providers translate Terraform code (HCL) into real API calls on the target service.
• Types of providers: official, partner, and community.
• Provider details, supported resources, and examples are available on the Terraform Registry.

Terraform & Provider Blocks

terraform block

• Sets Terraform CLI version (required_version).
• Defines provider versions under required_providers.

provider block

• Configures settings for the provider (e.g., AWS region).

Example:

provider "aws" {
  region = "us-east-1"
}

Version Constraints

Used to control which versions are allowed.

Operators: =, !=, <, >, <=, >=, and ~> (pessimistic constraint).

Basic Resource Example