Saturday, January 11, 2014

OpenStack 101: What is OpenStack?

OpenStack, in simple words, is an open source project which facilitates us to build our own cloud computing setup. In other words, it creates an Infrastructure as a Service (IaaS) on our own infrastructure. We can have Amazon AWS like service up and running quite fast and painlessly wherever we want. A lot of efforts have been taken to ensure that code written for Amazon AWS can be ported to any OpenStack installation easily.

Below is a small comparison (not exhaustive) between major OpenStack services and Amazon AWS to give you an idea about the compatibility.

OpenStack Service Amazon AWS Service
Cinder EBS
Swift S3
Keystone IAM
Glance AMI
Horizon AWS Web Console
Neutron EC2 network components

OpenStack 101 is a tutorial series to simplify using OpenStack and integration of OpenStack with simple applications. It'll help you create OpenStack installations for "proof -of-concept" stage or hosting small IaaS service. For most of the part I have tried to keep the tutorials as close to official documentation as possible. Let me also state this loud and clear, OpenStack's documentation is really great. If you can, the please go through it. If you are done with "proof-of-concept" and are going to run production ready machines, then go through the official documentation. These tutorials will help you get started but are not a replacement for the docs.

I am going to use OpenStack Havana and will run it on Fedora 20 (latest at the time of writing, January 2014). All the commands and codes are tested well before putting them up here but if you see any errors, please point them out to me.

OpenStack 101: What is OpenStack?
OpenStack 101: How to Setup OpenStack KeyStone (OpenStack Identity Service)
OpenStack 101: How to Setup OpenStack Swift (OpenStack Object Storage Service)

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