The developer asks which image is currently installed on the client. How to check using Docker?

To find out which image is used by a running container on the client, you can execute the following command:

docker ps

It will display a list of running containers with a column named IMAGE, which shows the image.

If you need to find out the image of a specific container, you can run:

docker inspect --format='{{.Config.Image}}' <container_id_or_name>

This will output the exact name of the image on which the container is based.