Tech articles about Serverless architectures, AWS CDK, Terraform, DevOps, Jamstack and Cloud Computing.https://a.l3x.in/https://a.l3x.in/blog/terrafom-lambda-no-archive-in-git/https://a.l3x.in/blog/terrafom-lambda-no-archive-in-git/Terraform is a great tool but managing AWS Lambda is arguably not one of its strength. In this post I'll describe one approach that I follow to work around this limitation.Sat, 18 Sep 2021 00:00:00 GMThttps://a.l3x.in/blog/serverless-web-client-with-vue-cli/https://a.l3x.in/blog/serverless-web-client-with-vue-cli/Vue 3 is going to be released soon and I wanted to see how easy it is to create the simples possible useful application with it. It turns out it's pretty easy with vue-cli and serverless tools! Here I share my findings.Tue, 15 Sep 2020 07:44:55 GMThttps://a.l3x.in/blog/mongodb-backups-with-aws-cdk/https://a.l3x.in/blog/mongodb-backups-with-aws-cdk/I love how Serverless enables simple solutions to common DevOps tasks: in this article I describe one simple way to automate MongoDB database backups using AWS Fargate, S3, and CDK.Wed, 12 Aug 2020 00:00:00 GMThttps://a.l3x.in/blog/free-whois-monitoring-with-serverless-on-aws/https://a.l3x.in/blog/free-whois-monitoring-with-serverless-on-aws/A few days ago I forgot to renew one of my registered Internet domains which I believed was set to auto-renew and received a few alerts when affected services started to fail. I hence took the chance to setup a simple and free monitoring solution to avoid incurring again in this same problem once and for all. Powered by AWS CDK, Python and WhoisXMLThu, 23 Jul 2020 00:00:00 GMThttps://a.l3x.in/blog/js-simple-mix-player/https://a.l3x.in/blog/js-simple-mix-player/I developed a simple JS audio player for a recording studio website and put it on GitHub. In this article I share my thoughts and findings.Wed, 17 Jun 2020 00:00:00 GMThttps://a.l3x.in/blog/add-pagespeed-check-with-serverless/https://a.l3x.in/blog/add-pagespeed-check-with-serverless/Google's Lighthouse is a powerful free resource that helps developers build performant, accessible and SEO friendly websites. Here I show one way to make use of Lighthouse to add performance monitoring for web pages using Serverless components on AWS.Sat, 30 May 2020 00:00:00 GMThttps://a.l3x.in/blog/centralise-linux-email-delivery/https://a.l3x.in/blog/centralise-linux-email-delivery/The technological side of Email has always occupied a bittersweet corner in my nerdy heart. In this article I dive a bit in the history of SMTP and share a simple but effective solution that I currently use to rationalise system and users' email delivery for a few of the Linux systems I manage.Thu, 14 May 2020 00:00:00 GMThttps://a.l3x.in/blog/setup-blog-feed-as-lambda-trigger/https://a.l3x.in/blog/setup-blog-feed-as-lambda-trigger/In a previous article I described how to develop a serverless event-driven application to automate social media updates. Now I show how to make use of RSS/Atom Feed and AWS Lambda + CDK to add the missing bit and make it 100% automated.Thu, 07 May 2020 00:00:00 GMThttps://a.l3x.in/blog/fix-router-with-raspberry-node-puppeteer/https://a.l3x.in/blog/fix-router-with-raspberry-node-puppeteer/Automate router WiFi bridge setup with Raspberry Pi, Node.js, Puppeteer and AnsibleMon, 27 Apr 2020 00:00:00 GMThttps://a.l3x.in/blog/replace-p2k-with-serverless-app/https://a.l3x.in/blog/replace-p2k-with-serverless-app/For my reading habits in the recent years I've been using p2k.co service to send Pocket articles to my Kindle. I decided to fix some of p2k shortcomings replacing it with an event-driven serverless application built with AWS Lambda, Fargate and CDKFri, 03 Apr 2020 00:00:00 GMThttps://a.l3x.in/blog/lambda-reports-with-destinations/https://a.l3x.in/blog/lambda-reports-with-destinations/Moving from a previous CDK article I expand the publish-to-social code base to add a nice report functionality. In this article I show you how easy it is to introduce Lambda Destinations in your CDK project and make use of them for this particular use case. For the frontend part I use Svelte web framework to present the Lambda report JSON output as web page content.Thu, 27 Feb 2020 00:00:00 GMThttps://a.l3x.in/blog/manage-aws-lambda-invocations-cdk/https://a.l3x.in/blog/manage-aws-lambda-invocations-cdk/With CDK is easy to organize AWS resources and share them between Stacks when needed. In this article I show you how I split an `api` Lambda in two, one for handling the API Gateway requests and the other for sending messages to an external notifications service.Tue, 25 Feb 2020 00:00:00 GMThttps://a.l3x.in/blog/serverless-publish-to-multiple-social-media/https://a.l3x.in/blog/serverless-publish-to-multiple-social-media/In the previous article I introduced AWS Cloud Developer Kit and wondered if and how to make use of code abstractions when designing IaC. Today I show you one way to extend the previous codebase and deploy a typical event driven (pub-sub) serverless application built with Lambda and SNS.Mon, 17 Feb 2020 00:00:00 GMThttps://a.l3x.in/blog/migrating-from-terraform-to-cdk/https://a.l3x.in/blog/migrating-from-terraform-to-cdk/After successfully replacing Terraform with CDK in a real life project I take the chance to wrap up the new knowledge along with some Terraform vs. CDK kind of considerations. I also synthesize the acquired know-how in a mini tutorial based on the actual code used in the production scenario.Tue, 04 Feb 2020 00:00:00 GMThttps://a.l3x.in/blog/updating-curriculum-with-web-tech/https://a.l3x.in/blog/updating-curriculum-with-web-tech/For a while I wanted to manage my CV in a more flexible way. I stumbled upon a great article on CSS-Tricks that made me think I had no more excuses to procrastinate. In this article I present my solution along with some considerations.Fri, 31 Jan 2020 00:00:00 GMThttps://a.l3x.in/blog/my-quest-for-identity-in-software-engineering/https://a.l3x.in/blog/my-quest-for-identity-in-software-engineering/A wrap up of my last 20 years as a professional in IT, along with some considerations about the current state of the art.Wed, 29 Jan 2020 00:00:00 GMThttps://a.l3x.in/blog/lambda-api-custom-domain-tutorial/https://a.l3x.in/blog/lambda-api-custom-domain-tutorial/Setup a custom domain REST API endpoint on AWS Lambda: a step by step tutorialWed, 25 Jul 2018 00:00:00 GMThttps://a.l3x.in/blog/moving-to-jekyll-and-firebase/https://a.l3x.in/blog/moving-to-jekyll-and-firebase/Migrating the blog to Jekyll and FirebaseSat, 21 Jul 2018 00:00:00 GMThttps://a.l3x.in/blog/sslnotifyme/https://a.l3x.in/blog/sslnotifyme/sslnotify.me - yet another OpenSource Serverless MVPTue, 30 May 2017 00:00:00 GMThttps://a.l3x.in/blog/lastversion/https://a.l3x.in/blog/lastversion/Lastversion: a Go serverless proof of concept developed on OpenWhiskTue, 28 Feb 2017 00:00:00 GMThttps://a.l3x.in/blog/sonos-spreaker/https://a.l3x.in/blog/sonos-spreaker/Integrating Sonos with Spreaker RSS feedTue, 23 Feb 2016 00:00:00 GMT