Experimenting with an HCL definition for Compose

compose.hcldec

object {
  attr "version" {
    type     = string
    required = true
  }

  block_map "services" {
    block_type = "service"
    labels = ["name"]
    object {
      attr "image" {
        type = string
      }
      attr "build" {
        type = string
      }
      attr "ports" {
        type = list(string)
      }
    }
  }
}

docker-compose.hcl

version = "3"

service "web" {
    build = "."
    ports = ["5000:5000"]
}

service "redis" {
    image = "redis:alpine"
}