docker post installation steps linux
# Creates docker group
sudo groupadd docker
# Add your user to the docker group
sudo usermod -aG docker $USER
# Log out and log back in so that your group membership is re-evaluated
# GNOME example
gnome-session-quitadd user to docker group
sudo usermod -aG docker $USER #$USER is your usernamedocker sudo how to add user
FROM alpine:latest
RUN apk --no-cache update \
&& apk --no-cache add sudo
copy run.sh /usr/local/
RUN addgroup -S cassandra && adduser -S cassandra -G cassandra
RUN chown -R cassandra:cassandra /home/cassandra/
RUN echo 'cassandra ALL=(ALL) /bin/su' >> /etc/sudoers
USER cassandra
ENTRYPOINT [ "sh","/usr/local/run.sh"]groupadd: group 'docker' already exists
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