If you are not using Visual Studio, to build the docker image
docker buildx build -t letemknow:latest -f .\Letemknow\Server\Dockerfile .
To run it for testing.
docker run --rm -d -p 80:80/tcp letemknow:latest
Now you can hit it via http://localhost:80
If you want a consistent db, you can use docker compose.
docker compose up -d --build from the root of the repo.