$ docker run -v $PWD/pkg:/pkg centos:7
# mkdir /tmp/empty
# yum install -y
  --installroot /tmp/empty
  --releasever 7
  --downloadonly
  --downloaddir /pkg
  docker

$ yum install /tmp/pkg/*
...
Error: Package: rpm-python-4.11.3-32.el7.x86_64 (installed)
           Requires: rpm = 4.11.3-32.el7
           Removing: rpm-4.11.3-32.el7.x86_64 (installed)
               rpm = 4.11.3-32.el7
           Updated By: rpm-4.11.3-35.el7.x86_64 (/rpm-4.11.3-35.el7.x86_64)
               rpm = 4.11.3-35.el7