GitHub Actions workflow w/multiple environments

Terraform
3

I used workspaces + Terraform Cloud for this. I believe the remote workspace automatically determines the backend off of the TF_WORKSPACE environment variable (you’ll have to check the docs), but here’s the GitHub action and backend config that I was using:

       - name: Set Workspace
         id: set_workspace
         run: |
           prod="${{ github.event.pull_request.base.ref == 'prod' || github.ref == 'refs/head/prod' }}"
           if [ "$prod" = true ]; then
             echo "::set-output name=environment::prod"
           else
             echo "::set-output name=environment::dev"
           fi
       - name: Terraform Plan
         id: plan
         if: github.event_name == 'pull_request'
         run: terraform plan -no-color
         continue-on-error: true
         env:
           TF_WORKSPACE: ${{ steps.set_workspace.outputs.environment }}

and backend config:

terraform {
   backend "remote" {
     organization = "myorg"

     workspaces {
       prefix = "myorg-"
     }
   }
}