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Terraform: implementing Using `terraform_remote_state` to Reference Outputs from Another Workspace

👀 Views: 50 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
terraform terraform-remote-state workspaces hcl

I've been struggling with this for a few days now and could really use some help... I'm trying to set up a multi-environment structure in Terraform where each environment (development, staging, production) has its own workspace. I want to reference the outputs from the `development` workspace in my `staging` workspace, but I'm working with issues with the `terraform_remote_state` data source. Specifically, I'm getting the following behavior when I run `terraform apply` in the `staging` workspace: ``` behavior: behavior retrieving state: 404 Not Found ``` Here's how my `staging` configuration looks: ```hcl data "terraform_remote_state" "dev" { backend = "s3" config { bucket = "my-terraform-state-bucket" key = "development/terraform.tfstate" region = "us-west-2" } } ``` I've verified that the S3 bucket and key are correct, and I can confirm that the `development` workspace has successfully created an output called `vpc_id` that I want to use in `staging`. However, when I switch to the staging workspace and try to access `data.terraform_remote_state.dev.outputs.vpc_id`, it fails with that 404 behavior. I also checked my IAM permissions to ensure that the role I'm using has access to the S3 bucket. Additionally, I'm running Terraform version 1.3.0. I've tried refreshing the state in the `development` workspace and running the command `terraform state list` to see if the output exists, which it does. The output is defined as follows in the `development` configuration: ```hcl output "vpc_id" { value = aws_vpc.main.id } ``` Is there something I'm missing with regard to referencing outputs from a different workspace? Any guidance on how to properly configure the `terraform_remote_state` data source for this scenario would be greatly appreciated. This is part of a larger service I'm building. Any help would be greatly appreciated! Is there a better approach? For context: I'm using Hcl on Linux. Any ideas how to fix this?