How can we override dependency block in Terragrunt ?

[abhinav5656]

Hello guys, I have a scenario where i have to create same resource two times (e.g rabbitmq) using terragrunt. Folder structure is like below

└── live
    ├── terragrunt.hcl
    ├── _env
    │   ├── rabbitmq.hcl 
    │   └── vpc.hcl
    ├── stage
    │   ├── env.hcl
    │   ├── rabbitmq
    │   │   └── terragrunt.hcl      
    │   └── vpc
    │       └── terragrunt.hcl
    └── qa
        ├── env.hcl
        ├── rabbitmq
            └── terragrunt.hcl    

• Stage rabbitmq has a dependency on stage vpc.
• The qa rabbitmq has a dependency on the the stage vpc.
• In _env/rabbitmq.hcl file, i have given config path:

dependency "vpc" {
  mock_outputs_allowed_terraform_commands = ["plan", "validate"]
  config_path = "${get_terragrunt_dir()}/../vpc"
}

When I try to overwrite the dependency block in qa/rabbitmq/terragrunt.hcl file with

 config_path = "${get_terragrunt_dir()}/../stage/vpc"

its not working.

how can I achieve it ?

[rhoboat]

Hello! Can you please also share the rest of your qa/rabbitmq/terragrunt.hcl and qa/env.hcl files?

[abhinav5656]

1- qa/rabbitmq/terragrunt.hcl

include "root" {
  path = find_in_parent_folders()
}

include "env" {
  path   = "${get_terragrunt_dir()}/../../_env/rabbitmq.hcl"
  expose = true
}

terraform {
  source = "${include.env.locals.source_base_url}?ref=v1.0.0"
}

dependency "vpc" {
  #skip_outputs = true
  mock_outputs_allowed_terraform_commands = ["plan", "validate"]
  mock_outputs = {
    vpc_id                   = "fake-vpc-id",
    workload_zone_subnet_ids = ["fake_subnet_ids"]
  }
  config_path = "${get_terragrunt_dir()}/../../stage/vpc"
}

2- qa/env.hcl

locals {
  environment = "qa"


  ### Rabbitmq env values ###

  broker_name          = "rabbitmq"
  user                 = "rabbit"
  rabbit_instance_type = "large"
  engine_version       = "3.8.22"
  deployment_mode      = "SINGLE_INSTANCE" 

}

Even after overriding the config path in the dependency block in qa/rabbitmq/terragrunt.hcl file, it is searching the vpc file in qa directory.

[denis256]

Hi,
maybe will make sense to set a path to VPC module in env.hcl, include it, and reference it in dependency?

Like:

...
include "env" {
  path   = "${get_terragrunt_dir()}/../env.hcl"
  expose = true
}

dependency "vpc" {
  config_path = "${include.env.locals.vpc_path}"

}
...