How to install openstack in centos 7.4 with queen

Step 1: Update the Centos Repository yum update -y     Step 2: Disable and stop the firewall and selinux systemctl disable firewalld systemctl stop firewalld setenforce 0 Step: 4 Disable and stop the Network Manager and start the network service systemctl disable NetworkManager systemctl stop NetworkManager systemctl enable network systemctl start network Step: 5...