To check if your system is working in the Docker app, follow these steps:

1. Check Docker Status

• Desktop Application:
  • Open the Docker Desktop application.
  • Ensure that Docker is running (check the status indicator; it should be green or say "Running").
• Command Line:

  docker info

  This will display information about the Docker daemon. If it’s running, you’ll see details about containers, images, and other Docker-related configurations.

2. List Running Containers

• Command Line: Run the following command to see if any containers are active:

  docker ps

  This will list all currently running containers. Look for your system container in the output.

• Desktop Application: Go to the "Containers" or "Containers/Apps" tab to see running containers and their statuses.

3. Check Container Logs

• Identify the container running your system (from the docker ps output or Docker Desktop).
• View logs to check for errors or confirm activity:

  docker logs <container_id_or_name>

  Replace <container_id_or_name> with the ID or name of the container.

4. Access the Application

• If your system exposes a service (e.g., web app, API), determine the port it is mapped to:

  docker ps

  Look for the PORTS column, which indicates the mapping (e.g., 0.0.0.0:8080->80/tcp means port 8080 on your host maps to port 80 in the container).
• Open a browser or API client and navigate to the service URL (e.g., http://localhost:8080).

5. Check for Errors

• Review any errors in the logs or check the application’s output to verify functionality.

6. Verify Services Inside Docker

• Enter the container to perform additional checks:

  docker exec -it <container_id_or_name> /bin/bash

  Then, inspect processes, configuration files, or logs inside the container.

7. Test System-Specific Functionality

• If the system has specific endpoints, tools, or commands, execute those to confirm the system is operational.