A simple container with CQLSH tool
$ git clone https://github.com/scraly/cqlsh.git
$ docker build -t scraly/cqlsh .
$ docker run -it scraly/cqlsh bash
kubectl run cqlsh -it --image docker.io/scraly/cqlsh:latest bash
cqlsh <host> <port> --cqlversion="3.4.4"
Manually built to https://hub.docker.com/r/scraly/cqlsh/