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7th chunk of `content/guides/java/develop.md`
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Press `ctrl+c` in the terminal to stop your application.

## Automatically update services

Use Compose Watch to automatically update your running Compose services as you
edit and save your code. For more details about Compose Watch, see
[Use Compose Watch](/manuals/compose/how-tos/file-watch.md).

Open your `docker-compose.yaml` file in an IDE or text editor and then add the
Compose Watch instructions. The following is the updated `docker-compose.yaml`
file.

```yaml {hl_lines="14-17"}
services:
  server:
    build:
      context: .
      target: development
    ports:
      - 8080:8080
      - 8000:8000
    depends_on:
      db:
        condition: service_healthy
    environment:
      - POSTGRES_URL=jdbc:postgresql://db:5432/petclinic
    develop:
      watch:
        - action: rebuild
          path: .
  db:
    image: postgres
    restart: always
    volumes:
      - db-data:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=petclinic
      - POSTGRES_USER=petclinic
      - POSTGRES_PASSWORD=petclinic
    ports:
      - 5432:5432
    healthcheck:
      test: ["CMD", "pg_isready", "-U", "petclinic"]
      interval: 10s
      timeout: 5s
      retries: 5
volumes:
  db-data:
```

Run the following command to run your application with Compose Watch.

```console
$ docker compose watch
```

Open a web browser and view the application at [http://localhost:8080](http://localhost:8080). You should see the Spring Pet Clinic home page.

Any changes to the application's source files on your local machine will now be automatically reflected in the running container.

Open `spring-petclinic/src/main/resources/templates/fragments/layout.html` in an IDE or text editor and update the `Home` navigation string by adding an exclamation mark.

```diff
-   <li th:replace="~{::menuItem ('/','home','home page','home','Home')}">
+   <li th:replace="~{::menuItem ('/','home','home page','home','Home!')}">

```

Save the changes to `layout.html` and then you can continue developing while the container automatically rebuilds.

After the container is rebuilt and running, refresh [http://localhost:8080](http://localhost:8080) and then verify that **Home!** now appears in the menu.

Press `ctrl+c` in the terminal to stop Compose Watch.

## Summary

In this section, you took a look at running a database locally and persisting the data. You also created a development image that contains the JDK and lets you attach a debugger. Finally, you set up your Compose file to expose the debugging port and configured Compose Watch to live reload your changes.

Related information:

- [Compose file reference](/reference/compose-file/)
- [Compose Watch](/manuals/compose/how-tos/file-watch.md)
- [Dockerfile reference](/reference/dockerfile/)

## Next steps

In the next section, you’ll take a look at how to run unit tests in Docker.
Title: Using Compose Watch for Automatic Service Updates and Live Reloading
Summary
This section provides instructions on using Compose Watch to automatically update running Docker Compose services when code changes are saved. It details how to configure the `docker-compose.yaml` file with Compose Watch instructions, shows how to run the application using `docker compose watch`, and provides an example of modifying a source file (`layout.html`) to trigger a live reload. It also summarizes the steps taken, including running a database locally, creating a development image, and configuring Compose Watch, and provides links to relevant documentation. The section concludes by previewing the next steps, which involve running unit tests in Docker.