There is a little trick, if you can call it that, to run a single command inside of an ephemeral docker container.

docker container run --rm -it alpine sh

The above example will run an interactive shell and allocate a pseudo-tty (-it) using the alpine image.

Once it has ran, it will remove the container again (--rm). This is nice since it prevents creating a slew of dangling containers.

Since alpine linux uses busybox under the hood the command we run, sh, will be the Almquist shell (/bin/ash).