HashiCorp Terraform Associate 003 Practice Test - Questions Answers, Page 15

Terraform validate reports configuration consistency errors, such as declaring a resource identifier more than once. This means that the same resource type and name combination is used for multiple resource blocks, which is not allowed in Terraform. For example,resource 'aws_instance' 'example' {...}cannot be used more than once in the same configuration. Terraform validate does not report errors related to module versions, state differences, or formatting issues, as these are not relevant for checking the configuration syntax and structure.Reference= [Validate Configuration], [Resource Syntax]

To see all the resources that Terraform will delete, you can use either of these two commands:

terraform destroywill show the plan of destruction and ask for your confirmation before proceeding. You can cancel the command if you do not want to destroy the resources.

terraform plan -destroywill show the plan of destruction without asking for confirmation. You can use this command to review the changes before runningterraform destroy.Reference= : Destroy Infrastructure : Plan Command: Options

You can configure Terraform to log to a file using the TF_LOG environment variable. This variable can be set to one of the log levels: TRACE, DEBUG, INFO, WARN or ERROR. You can also use the TF_LOG_PATH environment variable to specify a custom log file location.Reference= : Debugging Terraform

You should runterraform initafter you start coding a new Terraform project and before you runterraform planfor the first time. This command will initialize the working directory by downloading the required providers and modules, creating the initial state file, and performing other necessary tasks.Reference= : Initialize a Terraform Project

The Terraform Cloud private registry provides the ability to restrict modules to members of Terraform Cloud or Enterprise organizations. This allows you to share modules within your organization without exposing them to the public. The private registry also supports importing modules from your private VCS repositories. The public Terraform Module Registry, on the other hand, publishes modules from public Git repositories and makes them available to any user of Terraform.Reference= :Private Registry - Terraform Cloud:Terraform Registry - Provider Documentation

To import the contents of a local file as a string in Terraform, you can use the built-in file function. By specifying file('id_rsa.pub'), Terraform reads the contents of the id_rsa.pub file and uses it as a string within your Terraform configuration. This function is particularly useful for scenarios where you need to include file data directly into your configuration, such as including an SSH public key for provisioning cloud instances. Reference = This information is a standard part of Terraform's functionality with built-in functions, as outlined in Terraform's official documentation and commonly used in various Terraform configurations.

When declaring a Terraform output, the value argument is required. Outputs are a way to extract information from Terraform-managed infrastructure, and the value argument specifies what data will be outputted. While other arguments like description and sensitive can provide additional context or security around the output, value is the only mandatory argument needed to define an output. Reference = The requirement of the value argument for outputs is specified in Terraform's official documentation, which provides guidelines on defining and using outputs in Terraform configurations.

In Terraform Cloud, speculative plan runs are not automatically started when changes are merged or committed to the version control repository linked to a workspace. Instead, speculative plans are typically triggered as part of proposed changes in merge requests or pull requests to give an indication of what would happen if the changes were applied, without making any real changes to the infrastructure. Actual plan and apply operations in Terraform Cloud workspaces are usually triggered by specific events or configurations defined within the Terraform Cloud workspace settings. Reference = This behavior is part of how Terraform Cloud integrates with version control systems and is documented in Terraform Cloud's usage guidelines and best practices, especially in the context of VCS-driven workflows.

You cannot access state stored with the local backend by using the terraform_remote_state data source. The terraform_remote_state data source is used to retrieve the root module output values from some other Terraform configuration using the latest state snapshot from the remote backend. It requires a backend that supports remote state storage, such as S3, Consul, AzureRM, or GCS. The local backend stores the state file locally on the filesystem, which terraform_remote_state cannot access.

Terraform documentation on terraform_remote_state data source: Terraform Remote State Data Source

Example usage of remote state: Example Usage (remote Backend)