Cloud · Linux Distribution · nova · OpenSSH · OpenStack · sshd · Ubuntu · Virtualization

Enable password authentication on cloud images

The cloud images bundled by various linux distributions have password authentication disabled by default for security reasons. The only possible way to login to an instance launched using one of these images is by specifying a security key during boot and using the key to ssh. Often you would want to enable password authentication like say to login through VNC console for debugging. This post will take you through the steps involved for enabling password authentication.
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automation · Cinder · Cloud · IceHouse · OpenStack · OpenStack installation guide · SaltStack

OpenStack Automated Install

OpenStack users with busy schedules would often want a stable, tested and repeatable method to deploy their private cloud without human intervention. There are many ways by which you can do it of which devstack and packstack are the most popular. However they are not the only ones available. In this post we summarize yet another method, with its own advantages. Continue reading “OpenStack Automated Install”

Cloud · Glance · IceHouse · Image Management · Image Service · Instance Management · Keystone · Network Management · Neutron · Open vSwitch · OpenStack · OpenStack architecture · OpenStack installation guide

OpenStack Beginner’s Guide – For Ubuntu Trusty

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.

Click on the image to download the guide.
Click on the image to download the guide.
Cloud · Grizzly · Havana · IceHouse · Netfilter · Netlink · Network Management · Networking · Neutron · Open source · Open vSwitch · OpenFlow · OpenStack · OpenStack architecture · Quantum · Software Defined Networking · Virtualization

L3 connectivity using neutron-l3-agent

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”

BSD · FreeBSD · FreeBSD 10.0 · Glance · Image Management · Image Service · Juno

Installing OpenStack-Glance (Juno) on FreeBSD 10.0

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”