Deploy Docker Image from DockerHub as App via Terrafiom

Hey guys … I’m trying to deploy an App via Terraform. I want to use one of my public Images from DockerHub.

The DigitalOcean Provider works (confirmed that with an other PoC).

Now I want to deploy a Docker image as an App. I found the digitalocean_app resource (https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/resources/app). The docs state, that I have to set “registry_type” to one of DOCR (DigitalOcean container registry) or DOCKER_HUB.

But I don’t really know how. This is my config.

resource "digitalocean_app" "docs-page-docker-app" {
  spec {
    name   = "docs-page-docker-app"
    region = "fra1"

    # domain

    service {
      name      = "docs-page-docker-app-image"
      http_port = 3000

      image {
        registry_type = "DOCKER_HUB"
        repository    = "sommerfeldio/docs-website"
        tag           = "stable"
      }
    }
  }
}

When I put DOCKER_HUB in quotation marks ("), I always get the error “Image does not exist or is private”. When I remove the quotation marks, my config is no longer valid.

From the docs I don’t really get how I have to specify that I want to use DockerHub as container registry. Anyone got an Idea on how I could tackle this issue?