Oct 2021
Sometimes I wonder whether I can still hack it in this industry. Like many people of my vintage, my programming language progression was Fortran, Cobol, Basic, Pascal, Unix shell script, C++, Java, Javascript and Python. I stopped there. So I did not learn Go, Rust, Erlang, Scala, Kotlin, Node or Typescript and while I’ve started […]
Feb 2021
When people think of DevOps, they likely think of delivery of code into production. Microsoft, Amazon and DevOps.com all mention delivery in the first paragraph of their definitions of DevOps. However, code has to be developed and tested before it can be shipped. That requires an environment where developers can integrate their code, an environment where QA teams can perform […]
Jan 2021
If you want to increase the disk space of an EC2 volume, this AWS page mentions a command called growpart. However, if you have an old (circa 2015) EC2 instance that was initially a Ubuntu 16.04 release, the command may not be available. The command is part of a package called cloud-utils. So: sudo apt […]
Jul 2020
Recently I was playing around with setting up an AWS Transit Gateway. The objective was to route traffic from multiple VPCs through a single NAT gateway to the company network. The solution had to work if the origin VPCs were in different AWS accounts. Part I: NAT Gateway I took it in stages. I first […]
Oct 2018
As a Mac user with concerns about privacy and data security, I have used a personal firewall on my laptop for many years. The specific one I use is Little Snitch. Normally I don’t name products but I like it so much that I have no problem making this exception. The way it works is […]
Recently I had to dive into Android app development to fix an issue in an app. Then, while I was testing the app I noticed that the payment process was not working. The app uses Instamojo, a payment gateway provider in India. The process works fine through the Web client, but the Android flow was broken. […]
Sep 2018
We re-launched YouRTI.in and introduced the Telugu version on the 23rd of August 2018. It was an official announcement of the partnership with the Hyderabad-based NGO Yugantar. We had a member of the Central Information Commission present to “launch” the site and talk about the importance of the Right to Information [known in other countries […]
Jun 2018
In a previous article, I showed how to set up a web application to use microservices with just the bare minimum of effort. However, that can result in some limitations, such as the presentation layer (or API Gateway) that aggregates the results of the microservices using hard-coded endpoint addresses (e.g. http://localhost:8888/api/v1/fromurl). In actual practice, this […]
Recently, I realized that I wasn’t as hands-on with microservices as I needed to be, so over the weekend, I created a web app that uses microservices to get a better feel for this system architecture paradigm. The app does a pretty simple task: given a bunch of URLs of online job postings, it fetches […]