Author Archives: sandeep

About sandeep

Passionate about sharing information on "how to".

Openstack installation : Image Services – Glance.

Content from “openstack.org”, listed here with minor changes – just noting down what I did – online notes. .. will be updated shortly

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Openstack installation : Keystone (Authentication Services)

Content from “openstack.org”, listed here with minor changes – just noting down what I did – online notes. Create database for keystone services CREATE DATABASE keystone;GRANT ALL PRIVILEGES ON keystone.* TO ‘keystone’@’localhost’ IDENTIFIED BY ‘{password}’;GRANT ALL PRIVILEGES ON keystone.* TO … Continue reading

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Openstack installation : Minimal services and Controller – Pre-requisites

Content from “openstack.org”, listed here with minor changes – just noting down what I did – online notes. The OpenStack system consists of several key services that are separately installed. These services work together depending on your cloud needs and … Continue reading

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Openstack installation : Installing OS, configure pre-requisites and install openstack client

Content from “openstack.org”, listed here with minor changes – just noting down what I did – online notes. In the course of learning installation of Openstack found that Canonical team maintain separate repositories for ‘Rocky’ release of Openstack. so decided … Continue reading

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Openstack Installation : My Requirements

Note : Most of the contents here are from “openstack.org” site.  I have listed in sequence what I did to have open stack up and running in my home lab.  It is just my preference to have the notes online. … Continue reading

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Debian – Qualcom 6174 Wifi not working

On my new Acer Nitro laptop, after installing Debian 9.4, found that Wifi was not working. Looking at dmesg output looked like the Qualcom Athreos 10K was not found. Installed firmware-linux package, but still did not work. So visited the … Continue reading

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Spring 5 REST / GraphDB : Installing ArangoDB

Pr-requisite: http://www.sandeeprao.net/index.php/2018/05/12/spring-5-rest-graph-db-part-2-basic-spring-config-with-simple-controller/ Had used Neo4j in one of thea past projects. However wanted to check out on ArangoDB, primary factor being Apache 2 License, Kubernetes, active community, supportive engineering team.  Following the development for couple of months now.  Time to get … Continue reading

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Spring 5 REST / Graph DB : Part 2 – Simple RestController

Pr-requisite : http://www.sandeeprao.net/index.php/2018/04/22/spring-5-rest-arango-graphdb-basic-poc-from-scratch/ It is possible to have the web app deployed in a container without xml configurations (web.xml) and the traditional dispatcher servlet configurations.  Extending AbstractAnnotationConfigDispatcherServletInitializer and providing the implementations for the following should suffice. getRootConfigClasses() — for “root” … Continue reading

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Spring 5 REST / GraphDB : Part 1 – Environment Setup

Quite some time since I had worked on web application development. Have been planning on developing a framework for analytics, where the data sources and relation between sources result in the need of graph databases. So thought of kick starting … Continue reading

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Open Day Light – Toaster Tutorial App

Few of my contacts were finding it difficult to get going on with the Open Day Light tutorial app. Reported that they were not able to cross the first step of creating a simple ‘Example’ project using Maven and an … Continue reading

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