Cannot use "storage account" and "file share" that I have created, while doing "docker compose up"

I have been following all of the tutorials for using docker compose with regards to azure and have been running into a problem with regards to volumes.

My docker compose file looks like this :

version: '3.7'
services:
  app-server:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8080:8080"
    depends_on:
      - db
    environment:
      SPRING_DATASOURCE_URL: jdbc:mysql://db:3306/shapeshop?useSSL=false&serverTimezone=UTC&useLegacyDatetimeCode=false
      SPRING_DATASOURCE_USERNAME: root
      SPRING_DATASOURCE_PASSWORD: root
      SERVER_PORT: 8080
    networks:
      - backend

  db:
    image: mysql:5.7
    ports:
      - "3306:3306"
    restart: always
    environment:
      MYSQL_DATABASE: shapeshop
      MYSQL_USER: admin
      MYSQL_PASSWORD: admin
      MYSQL_ROOT_PASSWORD: root
    volumes:
      - "db-data:/var/lib/mysql"
    networks:
      - backend

volumes:
  db-data:
    driver: azure_file
    driver_opts:
      share_name: shapeshopfileshare
      storage_account_name: shapeshopstorageaccount

networks:
  backend:

In the above YML file I am defining the volume for the mysql container (db) to point to azure artifacts. The tutorials state that I should use "azure_file" as a driver and then create a file share and a storage account.

I created both of these (shapeshopfileshare and shapeshopstorageaccount):

Now if I log into "az" CLI like so :

az login

I see my subscription "shapeShopResourceGroup"

  {
    "id": "/subscriptions/8cdb50cb-ede8-4eac-80df-55afadf861cd/resourceGroups/shapeShopResourceGroup",
    "location": "eastus",
    "managedBy": null,
    "name": "shapeShopResourceGroup",
    "properties": {
      "provisioningState": "Succeeded"
    },
    "tags": null,
    "type": "Microsoft.Resources/resourceGroups"
  },

I am also using the "aci" context :

However when I do docker compose up I get this error :

error: The storage account named shapeshopstorageaccount is already
taken.

This is really frustrating to me because, yes, shapeshopstorageaccount DOES EXIST! I created it for ME!

So then, I think somehow my context does not associate properly with my subscription. So to check I type in :

az storage account list

…and my shapeshopstorageaccount is listed in the returned JSON. So it seems like the association between my storage account and subscription exists.

Why is azure (or docker-compose) not associating the declared volume in my YML file with the azure storage that I created??