Posted in Cloud, Openstack

Basic networking in Openstack Part2

In first part we saw how to create new VM in internal/private network now in this post we will see how to add external/public network to VM instance.

First check if our existing VM is in running state.

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Now also check available network using CLI and using Openstack Dashboard.

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Posted in Cloud, network, Openstack

Basic networking in Openstack Part 1

Once you install Openstack in single node or multinode setup next thing is to setup network. To understand networking in Openstack is little tedious job. This post is to describe basic Openstack networking concept by creating internal/external networking and testing the same.

First delete all default network like public and private which were created by default after Openstack installation using

#neutron net-delete <net-name>

Let us create new internal network first.

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Create subnet for network private-net with subnet address 10.0.0.0/24

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Posted in Linux, Openstack

Multinode Openstack Installation on Centos 7/RHEL 7

This post describing multinode OpenStack installation on centos7/rhel7 for Liberty release. If you want to do single node installation please refer my earlier post.

We are installing OpenStack onto 3 nodes controller,compute and network using packstack utility

Following is 3 node Openstack Architecture and related Openstack services running on respective nodes. I am using two network one is management network of 192.168.56.* which is used for internal communication between nodes and one external network used to assign public IP to VM and to access instances/VM from outside. I am also using NATed DHCP ip on each nodes to download required filesets from internet.

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Posted in Linux, Openstack

Openstack Liberty install using packstack on Centos 7/RHEL 7

This post is a quickstart guide to install OpenStack Liberty release using packstack on CentOS7.

This is very basic POC setup where all components will be installed on one node only. I will create another post for multinode installation setup.

  1. Install CentOS using minimal install Software Selection.

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