Terraform 1 7

Terraform 1.7

This overview applies when the project's target Terraform version is at least 1.7.

Testing

• Terraform tests can mock providers with mock_provider, replace individual resources or data sources with override_resource and override_data, and replace whole module results with override_module.
• Mock providers allow apply-mode module tests without real provider credentials or remote infrastructure.

Refactoring

• A removed block records that a resource or module call left configuration and selects whether Terraform should destroy the remote object or only forget it from state.
• Configuration-driven removal is planned and applied, providing a reviewable alternative to an immediate terraform state rm operation.

removed {
  from = aws_instance.legacy

  lifecycle {
    destroy = false
  }
}

Behaviour and migration

• nonsensitive accepts values that are already non-sensitive instead of raising an error.
• terraform graph defaults to a simplified resource relationship graph. terraform graph -type=plan retains the more detailed plan graph.
• The S3 backend adopts the standard AWS credential chain by default; the legacy workflow is deprecated.
• State interoperability involving input validations requires Terraform 1.3.10, 1.4.7, or 1.5.7 when those older minor series exchange state with Terraform 1.7.