root@infra1-repo-container-2aa293c7 etc]# cat yum.repos.d/epel-repo_build.repo
[epel-repo_build]
baseurl = http://download.fedoraproject.org/pub/epel/7/x86_64
enabled = 1
gpgcheck = 1
includepkgs = moreutils perl-Time-Duration
name = Extra Packages for Enterprise Linux 7 - $basearch

[root@infra1-repo-container-2aa293c7 etc]# yum makecache
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
epel-repo_build                                                                                                                                                                                                        | 5.3 kB  00:00:00
epel-repo_build/filelists_db   FAILED
http://download.fedoraproject.org/pub/epel/7/x86_64/repodata/cf005f9ffb4f0510d993d650fdd7b8c7f3b8480fe1767c92219d2c4715683f50-filelists.sqlite.bz2: [Errno 14] HTTP Error 500 - Internal Server Error       ]  0.0 B/s |    0 B  --:--:-- ETA
Trying other mirror.
epel-repo_build/updateinfo_zck FAILED
http://download.fedoraproject.org/pub/epel/7/x86_64/repodata/93bca95bac0bd00b46e9272d08dee9669e8d9afd5e7f177f7b987f380dba162a-updateinfo.xml.zck: [Errno 14] HTTP Error 403 - Forbidden                     ]  0.0 B/s |    0 B  --:--:-- ETA
Trying other mirror.
To address this issue please refer to the below wiki article

https://wiki.centos.org/yum-errors

If above article doesn't help to resolve this issue please use https://bugs.centos.org/.

epel-repo_build/prestodelta    FAILED
http://download.fedoraproject.org/pub/epel/7/x86_64/repodata/2d5b5e9885c6f95e9789a4b1e86430e8df888b446ad04f11395f9d739ebbb95d-prestodelta.xml.gz: [Errno 14] HTTP Error 500 - Internal Server Error         ]  0.0 B/s |    0 B  --:--:-- ETA
Trying other mirror.
epel-repo_build/filelists_db                                                                                                                                                                                           |  11 MB  00:00:00
Metadata Cache Created
[root@infra1-repo-container-2aa293c7 etc]#