Create local Centos and Hortonworks repos

Centos repo installation:
https://www.howtoforge.com/creating_a_local_yum_repository_centos

http://www.unixmen.com/setup-local-yum-repository-centos-7/

http://www.serverlab.ca/tutorials/linux/network-services/creating-a-yum-repository-server-for-red-hat-and-centos/

Hortonworks repo installation:
https://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Installing_HDP_AMB/content/_setting_up_a_local_repository.html