yum install yum-utils createrepo

# yum repolist
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: ty1.mirror.newmediaexpress.com
 * epel: ftp.iij.ad.jp
 * extras: ty1.mirror.newmediaexpress.com
 * updates: ty1.mirror.newmediaexpress.com
repo id                                         repo name                                                                     status
!Ceph/x86_64                                    Ceph packages for x86_64                                                       1,050
!Ceph-noarch                                    Ceph noarch packages                                                             184
!base/7/x86_64                                  CentOS-7 - Base                                                               10,072
!ceph-source                                    Ceph source packages                                                               0
!epel/x86_64                                    Extra Packages for Enterprise Linux 7 - x86_64                                13,612
!extras/7/x86_64                                CentOS-7 - Extras                                                                498
!updates/7/x86_64                               CentOS-7 - Updates                                                             2,458

Cephリポジトリを

reposync -r Ceph -n -p /var/www/html/repo/ 

オプション

# ls -al Ceph/
total 271720
drwxr-xr-x  3 root root      4096 Jul  5 11:53 .
dr-xr-x---. 6 root root       242 Jul  5 11:52 ..
-rw-r--r--  1 root root      3116 Jul  1 02:51 ceph-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root   5768372 Jul  1 02:53 ceph-base-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root  19871984 Jul  1 02:52 ceph-common-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root 166464690 Jul  5 11:52 ceph-debuginfo-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root     24552 Jul  1 02:51 cephfs-java-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root    587228 Jul  1 02:51 ceph-fuse-14.2.22-0.el7.x86_64.rpm
-rw-r--r--  1 root root   1992384 Jul  1 02:50 ceph-mds-14.2.22-0.el7.x86_64.rpm
・
・
・

createrepo Ceph

下記のように作成したローカルのリポジトリを指定して利用する

# cat /etc/yum.repos.d/ceph.repo
[Ceph]
name=Ceph packages for $basearch
baseurl=http://192.168.1.254/repo/Ceph
enabled=1
gpgcheck=1
type=rpm-md
gpgkey=https://download.ceph.com/keys/release.asc
priority=1