How to Install of OpenStack Using RDO Packstack in CentOS 7 Step by Step Procedure

What is OpenStack ?

How to Solve All Error's During Installation of Single & Multiple Node OpenStack in CentOS 7 with Screenshot
https://itcloudnet.blogspot.in/2017/05/how-to-solve-all-errors-during.html

How to Install Openstack Using Devstack in All-In-One Single Machine on CentOS 7
https://itcloudnet.blogspot.in/2017/05/how-to-install-openstack-using-devstack.html

Interview Questions and Answers on OpenStack for Fresher and Experience 
https://itcloudnet.blogspot.in/2017/05/interview-questions-and-answers-on.html

OpenStack is a free and open-source software platform for cloud computing, mostly deployed as an infrastructure-as-a-service (IaaS). The software platform consists of interrelated components that control diverse, multi-vendor hardware pools of processing, storage, and networking resources throughout a data center.

What is an OpenStack developer?

Providing infrastructure means that OpenStack

makes it easy for users to quickly add new instance, upon which other cloud components can run. Typically, the infrastructure then runs a "platform" upon which a developer can create software applications that are delivered to the end users

Minimum Hardware Requirements

Note :-  To verify that the processor of a system running Red Hat Enterprise Linux has the required CPU extensions and that they are enabled, check the contents of the /proc/cpuinfo

Step1 :- grep -E 'svm|vmx' /proc/cpuinfo | grep nx

If any output is displayed, the processor is capable of hardware virtualization. Otherwise, it is still possible that your processor supports hardware virtualization because manufacturers sometimes just disable the virtualization extensions in the BIOS. Consult the system's BIOS and the motherboard manual provided by the manufacturer.

Single Node ("All in One") Deployments

Processor :- Intel 64bit or AMD64 CPU Extensions and the AMD-V or Intel VT Hardware Virtualization Extensions should be enabled

Memory :- A minimum of 2GB of RAM is recommended
                   A maximum of 4GB of RAM is recommended

Disk Space :-  A minimum of 50 GB of available disk space is recommended
                        A maximum of 1 TB of available disk space is recommended

Network Interface Cards 1 x 1 Gbps

Let Begins the Installation in CentOS Linux 7 (Core) - x86_64

Step1 :- First You Need to Login with Root Account Type  (root or su) then update and upgrade of system - yum update -y
              yum upgrade -y

 Step2 :- Now Type (ss -tulpn) in terminal to check all services are running

 Step2 :- Now we are removing, disabled and stop this services postfix firewalld and networkmanger Type systemctl stop postfix firewalld NetworkManager
or
systemctl stop postfix
systemctl stop firewalld
systemctl stop NetworkManager
Now Type systemctl disable postfix firewalld NetworkManager
or
systemctl disable postfix
systemctl disable firewalld
systemctl disable NetworkManager

 Step3 :-  Now disabled the SELINUX see below image

 Step4 :-  Set FQDN see below image or screenshot

 Step5 :- Now Update the NTPDATE by issuing a command see below image and Official NTP Public Pool Time Servers

 Step6 :- Install the RPM to setup the OpenStack repository by issuing a below command

 and after that update

 Step6 :- Now Install Main Openstack Packstack see below image

 Step7 :- Now edit the generated answer configuration file with a text editor

 

 and replace the following parameters to match the below values in images you can see

 Please consult http://www.pool.ntp.org/en/ server list in order to use a public NTP server near your physical location.

Step 9 :- After you finished editing save and close the file.

 Also, open SSH server configuration file and uncomment PermitRootLogin line by removing the front hashtag as illustrated on the below screenshot.

 Step10 :- restart the sshd service see below screenshot

 Step11 :- Finally start Openstack installation process via the answer file edited see below screenshot