Verify whether the Docker container has been created and is running successfully by executing the following command:
$ docker ps
Once the preceding command has executed successfully, it will give us the running Docker container details, as shown in the following screenshot:
To list all the Docker containers, whether they are running or not, we have to pass an additional flag, -a, as docker ps -a.
Browse http://localhost:8080/ or execute a GET call from the command line, as follows:
$ curl -X GET http://localhost:8080/
Hello World!
This will give us Hello World! as a response, which means the HTTP server is listening inside a Docker container at port 8080.