Install Openstack Cloud Mitaka on RHEL7 / CentOS7 using RDO

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This tutorial describes you the step by step procedure to install openstack MITAKA on RHEL 7 / CentOS 7 using RDO repository.

Our Lab Setup:
Operating System : CentOS 7.x - 64 Bit
Hostname : linux1.learnitguide.net
IP Address : 192.168.2.61

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Install Openstack Cloud Mitaka on RHEL7 / CentOS7 using RDO

Prerequisites:
1. One Server with OS CentOS7.x
2. Minimum One Network Adapter with Internet connection (Internet Connection is needed to make the installation easier)
3. Virtualization Extenstions should be enabled. (egrep 'mmx|svm' /proc/cpuinfo)
4. Disabled firewalld and selinux.

Step 1: Install RDO Repository
Update the packages and install the RDO repo using the below command.
[root @linux1 ~] yum -y update
[root @linux1 ~] yum -y install https://www.rdoproject.org/repos/rdo-release.rpm
RDO stands for RPM Distribution of Openstack. RDO is community of users and free distribution of Redhat linux packages(CentOS, Fedora and Redhat Enterprise Linux). Refer the following link for more information https://www.rdoproject.org/rdo/faq/.

Step 2: Install Openstack Mitaka release and Installer "Packstack"
Packstack is a utility that uses Puppet modules to deploy various parts of OpenStack on multiple pre-installed servers over SSH automatically.
[root @linux1 ~] yum -y install centos-release-openstack-mitaka
[root @linux1 ~] yum -y install openstack-packstack
Step 3: Deploy the Openstack Cloud Mitaka
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Packstack can be used to install each OpenStack service on separate servers, an ''allinone'' server, or any combination of these. There are three ways that Packstack can be run.

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packstack
packstack [options]
packstack --gen-answer-file=<file> [options] / packstack --answer-file=<file>
The third option allows the user to generate a default answer file, edit the default options, and finally run Packstack a second time using this answer file. This is the easiest way to run Packstack.

So the command is,
[root @linux1 ~] packstack --gen-answer-file=/root/answer.txt
Edit the answer.txt file to set the needed parameters as per the requirement. We can choose, which services are need to be installed using this answer file.

Step 4: Install the Openstack Cloud using the answer file
Execute the below command to start the Openstack Mitaka installation.
[root @linux1 ~] packstack --answer-file /root/answer.txt
Once the Installation process is completed, See the last few lines from the output of the above command, which will show you the dashboard link and your login credentials will be stored in the file "keystonerc_admin" under your home directory.

We can login to the Openstack Mitaka web interface dashboard to create and manage the Openstack Cloud environment.

We have done the Installation of Openstack Mitaka successfully, we will explain you how to work with the dashboard and how to create, manage and delete the Instance in the next articles.

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August 15, 2016

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