Cached package data should be cleaned after installation to reduce image size.
Security
N/A
Examples
FROM registry.suse.com/suse/sles12sp4:latest
# issue, package cache not cleaned up
RUN zypper install bash
ENTRYPOINT ["/etc/bin/application"]
CMD ["-i"]
Mitigation / Fix
Add zypper clean (or the cc shortcut) to Dockerfile:
FROM registry.suse.com/suse/sles12sp4:latest
# fixed
RUN zypper install bash && zypper clean
ENTRYPOINT ["/etc/bin/application"]
CMD ["-i"]