build.sh

sudo docker build -t varshared .

data.sh

sudo docker run -v ~/.ssh:/var/shared/.ssh -v ~/.sbt:/var/shared/.sbt --name data busybox

Dockerfile

from busybox

VOLUME /var/shared
RUN touch /var/shared/placeholder

error-with-volume-container.sh

sudo docker run --volumes-from data --rm varshared ls -a /var/shared

ok-mounting-volumes-directly.sh

sudo docker run -v ~/.ssh:/var/shared/.ssh -v ~/.sbt:/var/shared/.sbt --rm varshared ls -a /var/shared