openldap-2.4.44-5.el7.i686
openldap-2.4.44-5.el7.x86_64
openldap-clients-2.4.44-5.el7.x86_64

FROM centos:7.4.1708
#7.4.1708 installs openldap-2.4.44-5.el7
ENV container docker
MAINTAINER The CentOS Project <cloud-ops@centos.org>
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done);
rm -f /lib/systemd/system/multi-user.target.wants/*;
rm -f /etc/systemd/system/*.wants/*;
rm -f /lib/systemd/system/local-fs.target.wants/*;
rm -f /lib/systemd/system/sockets.target.wants/*udev*;
rm -f /lib/systemd/system/sockets.target.wants/*initctl*;
rm -f /lib/systemd/system/basic.target.wants/*;
rm -f /lib/systemd/system/anaconda.target.wants/*;
ENV container docker
RUN yum -y install openldap openldap-clients
CMD ["/usr/sbin/init"]

Step 6/7 : RUN yum -y install openldap openldap-clients
 ---> Running in 4cccfbad0fb9

Loaded plugins: fastestmirror, ovl
Determining fastest mirrors
 * base: repos-tx.psychz.net
 * extras: mirrors.oit.uci.edu
 * updates: linux.mirrors.es.net
Resolving Dependencies
--> Running transaction check
---> Package openldap.x86_64 0:2.4.44-5.el7 will be updated
---> Package openldap.x86_64 0:2.4.44-20.el7 will be an update
---> Package openldap-clients.x86_64 0:2.4.44-20.el7 will be installed
--> Finished Dependency Resolution