Version 4 of OpenStack Beginner’s Guide is out. This guide is based on OpenStack Icehouse version. You can download the book by clicking the link below.

Version 4 of OpenStack Beginner’s Guide is out. This guide is based on OpenStack Icehouse version. You can download the book by clicking the link below.
The following method was tested with FreeBSD 10.0 image bundled into Icehouse version of OpenStack running on Ubuntu 14.04
Create an image needed for Hard-drive emulation
qemu-img create -f qcow2 freebsd.img 5G
Continue reading “Bundling FreeBSD 10.x image for OpenStack”
The neutron l3 agent is responsible for providing service for routing, natting, security-group rules and floatingip allocation. This purpose of this post is to document its working principles and also to enable users to effectively debug their Openstack cloud(most problems occur due to user mis configuration). The l3 agent offers these services from the network node and relies on neutron-openvswitch-agent to provide l2 connectivity to the instances running on compute nodes. This post assumes that the readers are aware of how l2 connectivity is achieved using ‘openvswitch’ mechanism driver. Continue reading “L3 connectivity using neutron-l3-agent”
The following procedure can be used to install OpenStack Glance Juno Version on FreeBSD 10.0.
Keystone is a prerequisite for installing Glance. Follow this link for installing Keystone on FreeBSD.
https://fosskb.in/2014/09/09/installing-openstack-keystone-juno-on-freebsd-10-0/
Continue reading “Installing OpenStack-Glance (Juno) on FreeBSD 10.0”
Install FreeBSD 10.0 on a machine with partitioning as per your requirements.
Continue reading “Installing OpenStack-Keystone (Juno) on FreeBSD 10.0”
Install OpenStack setup using the link https://fosskb.in/2014/04/12/openstack-icehouse-on-ubuntu-12-04-lts-single-machine-setup/
Continue reading “Installing OpenStack-Cinder (Icehouse) on Ubuntu 14.04”
In this post we shall be discussing about various network components and their corresponding Linux virtual counterparts.
Switches basically provide the following functionality
The assorted packets then pass through the forwarding phase, which determine to which port they would be sent to. Packets going out trunk ports will be tagged and those going out access ports will not be tagged. The forwarding logic guarantees that a packet belonging to a VLAN shall never trespass another VLAN.
L2 connectivity is the most basic requirement in a network. All cloud platforms allow users to create subnets. Subnets are L2 segments to which the servers attach their interfaces to and start sending and receiving traffic. Servers on the same L2 segment can reach each other directly. They only need to resolve the destination MAC address using ARP. In the world of networking this service is provided by your access switch.
Continue reading “L2 connectivity in OpenStack using OpenvSwitch mechanism driver”