Hi everyone, I'm having a strange issue with my Pulumi, I've just started using the following folder structure:

IAC-PULUMI
├── dev
│   ├── eks
│   ├── iam
│   ├── rds
│   ├── vpc
│   └── dev.go
├── prod
│   ├── eks
│   ├── iam
│   ├── rds
│   ├── vpc
│   └── prod.go
├── shared
│   ├── eks
│   ├── iam
│   ├── rds
│   ├── vpc
│   └── shared.go
├── modules
│   ├── eks
│   ├── iam
│   ├── rds
│   ├── vpc
├── .gitignore
├── go.mod
├── go.sum
├── main.go
├── Pulumi.iac-pulumi-dev.yaml
├── Pulumi.iac-pulumi-prod.yaml
├── Pulumi.iac-pulumi-shared.yaml
├── Pulumi.yaml
└── vendor

My main.go is as follows:

package main

import (
	"fmt"
	"log"
	"os"
	"os/exec"

	"iac-pulumi/shared"
)

func runPulumiCommand(env string) {
	// Construct the stack name based on the environment variable
	stackName := fmt.Sprintf("<<MY-COMPANY>>/iac-pulumi/%s", env)
	// Select the stack
	cmd := exec.Command("pulumi", "stack", "select", stackName)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	err := cmd.Run()
	if err != nil {
		log.Fatalf("Failed to select Pulumi stack: %v", err)
	}
}

func main() {
    env := os.Getenv("DEPLOY_ENV")
    if env == "" {
        fmt.Println("Please run: export DEPLOY_ENV=<your-environment>")
        return
    }

    switch env {
    case "shared":
        shared.Deploy()
        runPulumiCommand(env)
    default:
        panic("Unknown environment")
    }
}

However, when running the command

pulumi up or pulumi preview

I receive the following error:

Diagnostics:
   pulumi:pulumi:Stack (iac-pulumi-shared):
     error: Duplicate resource URN 'urn:pulumi:shared::iac-pulumi::pulumi:pulumi:Stack::iac-pulumi-shared'; try giving it a unique name

As if it is trying to recreate the stack but the stack already exists so in theory it should just select the existing one. I searched slack and the internet for the same problem and only found this: https://github.com/pulumi/pulumi/issues/13779 Does anyone have any insight into how to resolve this? Thanks!

I’d recommend you have a look at Automation API, which I think will be a far more elegant solution than

exec.Command

to perform operations on Pulumi stacks. Also, you’ll want to review the documentation around Pulumi projects and stacks, so that you understand how to manipulate them with Automation API. The docs have some great materials here; let me know if you need links and I’ll look them up (although they should be pretty easy to find). If you have further specific questions, let me know. I’m happy to help if I’m able.

Thank you @salmon-account-74572 I'll take a look

Gotcha---yep, that would definitely do it. Glad you found a solution!