VOLUME /var/log/nginx
VOLUME /etc/ssl/private
-RUN apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D || \
- apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
+ADD 58118E89F3A912897C070ADBF76221572C52609D.asc /tmp/
+RUN apt-key add --no-tty /tmp/58118E89F3A912897C070ADBF76221572C52609D.asc && \
+ rm -f /tmp/58118E89F3A912897C070ADBF76221572C52609D.asc
RUN mkdir -p /etc/apt/sources.list.d && \
echo deb https://apt.dockerproject.org/repo debian-stretch main > /etc/apt/sources.list.d/docker.list && \