This sub-project contains terraform code to understand the concept of meta-argument depends_on for explicit dependency with the help of resource deployment on Google Cloud Platform.

  • Use the depends_on meta-argument to handle hidden resource or module dependencies that Terraform cannot automatically infer.
  • You only need to explicitly specify a dependency when a resource or module relies on another resource’s behavior but does not access any of that resource’s data in its arguments.

Prerequisites

All the prerequisites mentioned in top level README file must be fulfilled for successful execution of code.

Code Execution

To execute the terraform code, go to command prompt and then run the following commands:

  • [Required] terraform init # To initialize the terraform working directory.
  • [Optional] terraform validate # To validate the terraform configuration.
  • [Optional] terraform fmt # To format the terraform configuration to a canonical format and style.
  • [Optional] terraform plan # To create an execution plan for terraform configuration files.
  • [Required] terraform apply -auto-approve # To execute the actions proposed in a terraform plan to create, update, or destroy infrastructure.
  • [Optional] terraform destroy -auto-approve # To destroy the created infrastructure. Specific resources can be destroyed using resource targetting.

References

  • https://developer.hashicorp.com/terraform/language/meta-arguments/depends_on