How to run the Docker image?

To run a Docker image, you can use the docker run command. Here’s how to do it:

Open a Terminal: Ensure that Docker is installed and running on your machine.
Run the Docker Image: Use the following command to run a container from your Docker image. For example, if your image is named my-app, you can run it with:
```
docker run --name my-running-app -p 3000:80 -d my-app
```
- --name my-running-app: This option gives your container a name (my-running-app).
- -p 3000:80: This maps port 80 in the container to port 3000 on your host machine. You can access the application via http://localhost:3000.
- -d: This option runs the container in detached mode (in the background).
- my-app: This is the name of the image you want to run.
Verify the Container is Running: You can check if the container is running by using:
```
docker ps
```
This command will list all running containers, and you should see my-running-app in the list.
Access the Application: Open a web browser and navigate to http://localhost:3000 (or the port you specified) to access your running application.
Stop the Container: If you need to stop the container, you can use:
```
docker stop my-running-app
```
Remove the Container: If you want to remove the container after stopping it, use:
```
docker rm my-running-app
```

This process will allow you to run and manage your Docker image effectively.