gpg --import --no-tty /tmp/pkuczynski.asc && \
curl -L https://get.rvm.io | bash -s stable && \
/usr/local/rvm/bin/rvm install 2.5 && \
gpg --import --no-tty /tmp/pkuczynski.asc && \
curl -L https://get.rvm.io | bash -s stable && \
/usr/local/rvm/bin/rvm install 2.5 && \
# udev daemon can't start in a container, so don't try.
RUN mkdir -p /etc/udev/disabled
# udev daemon can't start in a container, so don't try.
RUN mkdir -p /etc/udev/disabled