It's made as a Spring Boot application using Spring MVC on the backend and AngularJS on the frontend.
It's wrapped to the Docker container, deployed to the cloud hosting and available here http://188.226.169.79:8081/
The Docker container is available at https://hub.docker.com/ as sfirsov/kalah-game
As the game is multiplayer you first need to register with unique name or enter with the existing credentials.
Then you need to create a game...
... and waiting for the opponent.
Or join the existing game.
And finally play the game.
There is a timeout for games inactivity. If there is no activity in the game for 10 minutes the game will be removed.