Steps to Install Openstack on CentOS7

Steps to Install Openstack on CentOS7 - Part 1

Hostname : openstack.linuxtopic.com

OS : CentOS 7 Minimal ( Fresh Installation )

IP Address : 172.17.20.100

Hardware : Core i3 with 4GB Ram

Step 1:

Check Release, Hostname and IP Address

cat /etc/redhat-release

uname -a

ip a

echo "172.17.20.100 openstack.linuxtopic.com" >> /etc/hosts

Step 2:

Disable NetworkManager , Firewalld

systemctl stop firewalld NetworkManager

systemctl disable firewalld NetworkManager

Disable SELinux

setenforce 0 # Temporary

OR
sed -i s/^SELINUX=.*$/SELINUX=permissive/ /etc/selinux/config # Permanent

setenforce 0

Step 3:

Update System and Install RDO ( RPM Distribution of Openstack ) Package

yum update -y

yum -y install https://repos.fedorapeople.org/repos/openstack/openstack-mitaka/rdo-release-mitaka-5.noarch.rpm

                                                          OR

Download from official site & install 

https://repos.fedorapeople.org/repos/openstack/”

Step 4:

               

Install Packstack : It’s utility that uses Puppet modules to deploy various parts of OpenStack

yum -y install openstack-packstack

Step 5:

               

Generate Packstack Answer File OR command used direct packstack

   

packstack --gen-answer-file=opnstacktest-answere-file.txt

vi opnstacktest-answere-file.txt

Change:

           

CONFIG_DEFAULT_PASSWORD=server

# Specify 'y' to install OpenStack Object Storage (swift). ['y', 'n']

CONFIG_SWIFT_INSTALL=n

# Specify 'y' to install OpenStack Metering (ceilometer). ['y', 'n']

CONFIG_CEILOMETER_INSTALL=n

# Specify 'y' to install OpenStack Telemetry Alarming (Aodh). Note

# Aodh requires Ceilometer to be installed as well. ['y', 'n']

CONFIG_AODH_INSTALL=n

# Specify 'y' to install Nagios to monitor OpenStack hosts. Nagios

# provides additional tools for monitoring the OpenStack environment.

# ['y', 'n']

CONFIG_NAGIOS_INSTALL=n

# Server on which to install OpenStack services specific to the

# controller role (for example, API servers or dashboard).

CONFIG_CONTROLLER_HOST=172.17.20.100

# List the servers on which to install the Compute service.

CONFIG_COMPUTE_HOSTS=172.17.20.100

# List of servers on which to install the network service such as

# Compute networking (nova network) or OpenStack Networking (neutron).

CONFIG_NETWORK_HOSTS=172.17.20.100

# Specify 'y' to provision for demo usage and testing. ['y', 'n']

CONFIG_PROVISION_DEMO=n

Save & Exit

Step 5:

Install Openstack Using Answer File

packstack --answer-file opnstacktest-answere-file.txt

OpenStack Has been Successfully Install

OpenStack Related Service

               

Services on Controller node right after OpenStack Mitaka installation:

   

systemctl list-unit-files | grep openstack

Services on Network node right after OpenStack Mitaka installation:

systemctl list-unit-files | grep openstack

systemctl list-unit-files | grep neutron

systemctl list-unit-files | grep ovs

Services on Compute node right after OpenStack Mitaka installation:

systemctl list-unit-files | grep openstack

systemctl list-unit-files | grep neutron

systemctl list-unit-files | grep ovs

OVS configuration on Compute node right after OpenStack Mitaka installation:

ovs-vsctl show

Verify GlusterFS Storage mount point (Controller node only):

df -hT

## Controller

systemctl status httpd.service

systemctl status memcached.service

systemctl status mariadb

systemctl status ntpd

## Nova

systemctl status openstack-nova-api.service

systemctl status openstack-nova-cert.service

systemctl status openstack-nova-consoleauth.service

systemctl status openstack-nova-scheduler.service

systemctl status openstack-nova-conductor.service

##Neutron##-- Networking

systemctl status neutron-server.service

systemctl status neutron-openvswitch-agent.service

systemctl status neutron-l3-agent.service

systemctl status neutron-dhcp-agent.service neutron-metadata-agent.service

systemctl status openvswitch.service

systemctl status neutron-openvswitch-agent.service

## Glance -- Image Service

systemctl status openstack-glance-api.service

systemctl status openstack-glance-registry.service

## Horizon -- Openstack Dashboard

systemctl status httpd.service

systemctl status memcached.service

Part 1: OpenStack Mitaka 5 installation in CentOS 7

Part 2: Network Configuration in OpenStack

Part 3: Network & Router configuration using Dashboard

Part 4: Create Project, Image, Volume & Instance

Part 5: Instance Snapshot & Boot from Volume

Part 6: Autostart OpenStack Instance Setting

Part 7: Extend Volume Size