This maps the container's port `80` to the host's port `8080`. If port `8080` is already in use on your host, you can specify a different port.
2.  View the Nginx welcome page. Navigate to [`http://localhost:8080/`](http://localhost:8080/).
3.  Verify the running container:
    -   In the **Containers** tab in the Docker Desktop Dashboard, you should see your Nginx container listed.
    -   Alternatively, list all running containers in the cloud engine via the terminal:
        ```console
        $ docker ps
        ```
4.  Shut down the container:
    ```console
    $ docker kill cloudnginx
    ```

Running a container with a cloud engine is just as straightforward as running it locally.

### Step three: Create and switch to a new cloud engine

{{< tabs group="method" >}}
{{< tab name="Docker Desktop">}}

1. Create a new cloud engine:
   - Enter `cloudengine2` as the name
   - Choose an organization to associate the cloud engine with
   - Select the **Standard** engine size with the **AMD-64** architecture
   In the **Project Harmonia** view you should now see both `cloudengine` and `cloudengine2`. 
2. Switch between engines, also known as your Docker contexts. Use the context switcher in the top-left corner of the Docker Desktop Dashboard to toggle between your cloud engines or switch from your local engine (`desktop-linux`) to a cloud engine. 

{{< /tab >}}
{{< tab name="CLI">}}

1. Create a new cloud engine. Run:
   ```console
   $ docker harmonia engine create cloudengine2
   ```
   Docker automatically switches you to your new cloud engine. 
2. Switch between engines, also known as your Docker contexts. Either switch to your first cloud engine:
   ```console
   $ docker context use cloudengine
   ``` 
   Or switch back to your local engine: 
   ```console
   $ docker context use desktop-linux
   ```

{{< /tab >}}
{{< /tabs >}}

### Step four: Use a file sync for your cloud engine

Project Harmonia takes advantage of [Synchronized file shares](/manuals/desktop/features/synchronized-file-sharing.md) to enable local-to-remote file shares and port mappings. 

{{< tabs group="method" >}}
{{< tab name="Docker Desktop">}}

1. Clone the [Awesome Compose](https://github.com/docker/awesome-compose) repository.
2. In the Docker Desktop Dashboard, navigate to the **Project Harmonia** view.
3. For the `cloudengine` cloud engine, select the **Actions** menu and then **Manage file syncs**.
4. Select **Create file sync**.
5. Navigate to the `awesome-compose/react-express-mysql` folder and select **Open**.
6. In your terminal, navigate to the `awesome-compose/react-express-mysql` directory.
7. Run the project in the cloud engine with:
   ```console
   $ docker compose up -d
   ```
8. Test the application by visiting [`http://localhost:3000`](http://localhost:3000/).
   You should see the home page. The code for this page is located in `react-express-mysql/frontend/src/App.js`.
9. In an IDE or text editor, open the `App.js` file, change some text, and save. Watch as the code reloads live in your browser.

{{< /tab >}}
{{< tab name="CLI">}}

1. Clone the [Awesome Compose](https://github.com/docker/awesome-compose) repository.
2. In your terminal, change into the `awesome-compose/react-express-mysql` directory.
3. Create a file sync for `cloudengine`:
   ```console
   $ docker harmonia file-sync create --engine cloudengine $PWD
4. Run the project in the cloud engine with:
   ```console
   $ docker compose up -d
   ```
5. Test the application by visiting [`http://localhost:3000`](http://localhost:3000/).
   You should see the home page. The code for this page is located in `react-express-mysql/frontend/src/App.js`.