Hello,
it seems
registry.fedoraproject.org/fedora:25 was recently updated to
some 10 month old version f3535ce68198 where packages cannot be
installed due to missing
/etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-25-x86_64:
https://bugzilla.redhat.com/show_bug.cgi?id=1460094
--
Jan Pazdziora
Senior Principal Software Engineer, Identity Management Engineering, Red Hat