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Category Archives for "Sreenivas Makam’s Blog"

Openstack Juno – Management interfaces

This blog is part of my series on Openstack Juno. In this blog, I will cover different management interfaces to Openstack. Following are the different management interfaces available. Horizon web interface CLI interface to each service. CLI interface is provided by Python script. Internally, the script calls the REST interface. REST interface. This is accessible … Continue reading Openstack Juno – Management interfaces

Openstack Juno services – Swift, Glance, Heat, Ceilometer

This blog is part of my series on Openstack Juno. In this blog, I will cover the usage of Openstack services Swift, Glance, Heat, Ceilometer. Swift: Swift is used for Object based storage. Its similar to AWS S3 service. First, create a container to store objects: $ swift post mycont Upload a file to the container $ … Continue reading Openstack Juno services – Swift, Glance, Heat, Ceilometer

Openstack Juno services – Nova, Cinder

This blog is part of my series on Openstack Juno. In this blog, I will cover the usage of Openstack services Nova, Cinder. I found this blog on Openstack services good in giving a highlevel overview of services and comparing individual Openstack services with Amazon AWS services. Nova basics: Nova is the Openstack compute service. Following … Continue reading Openstack Juno services – Nova, Cinder

LXC Containers

This blog is part of my ongoing series on Docker containers. In this blog, I will take a deviation from Docker and focus on LXC. LXC manages Containers like Docker, there are some differences, I will cover the differences in a later blog. LXC is an Opensource Linux container project from Linuxcontainers.org that provides an user space … Continue reading LXC Containers

CoreOS overview

This blog is part of my ongoing series on Docker containers. In this blog, I will cover basics of CoreOS and some hands-on stuff I tried with CoreOS. As mentioned in my other blog on Docker  orchestration, CoreOS falls in the category of specialized Linux distributions that can host Containers and are suitable for massive server deployments. … Continue reading CoreOS overview

Docker Overview

Even though Linux container technology has been available for quite some time, Docker has revolutionized the container technology with its simple packaging that allows portability of applications. Docker packages the applications along with the dependencies like related libraries into an simple image. This single image can be then run on different locations like bare-metal, VM, … Continue reading Docker Overview

Group based policy in Opendaylight

This is a continuation of my previous blog on Group based policy(GBP). In this blog, I will cover the GBP features in Opendaylight helium release, Use-cases that are published in the Opendaylight wiki as well as different usecase that I tried out. Group based policy in Opendaylight: Following diagram is from Opendaylight GBP wiki: Openstack here … Continue reading Group based policy in Opendaylight