ARM vs Intel – A real-world comparison using EC2
With the recent move from Apple to ARM-based CPUs, everyone seems to be in awe of the performance of the ARM-based Apple M1s. As a cloud engineer, I couldn’t avoid asking if this performance translates to cloud computing too. AWS has their line of ARM CPUs called Graviton, available in their second generation as the m6g family […]
Let’s talk about NodeJS Promises, I promise it wont’ be long
Serverless architectures are becoming very popular nowadays and NodeJS runtime is an interesting option on AWS Lambda. However, an asynchronous runtime is not always a suitable solution. So, understanding promises in JavaScript is essential to determine when to use NodeJS Lambda Functions on AWS. In this article, we are going to wall through the characteristics […]
RDS secrets rotation and ECS update
As every solution comes from a challenge or problem. Engineers love to solve problems and problem-solving requires creativity and knowledge of the tools you have available to you, very similar to an artist that want to express their art with different materials and tools that they have. So, here is the challenge/requirement solved: Challenge Database […]
Understanding CPU credit balances on AWS services: EC2 and RDS
Since Amazon released the “t2” instance class for EC2, a problem I noticed that happens more frequently than it should is lack of an understanding of how the credit system works. One of the most common issues is when an EC2 instance runs out of CPU credits and becomes throttled, causing an impact on users. […]
DNX Tech Update: June-July
As part of our routine, we invest heavily in improving our open source stack and making sure knowledge is captured in the form of code. DNX One Last month our main focuses were on compliance and data. Compliance terraform-aws-security-baseline — This module setup alerts for common controls defined on the CIS AWS Foundations Benchmark. terraform-aws-ecs — Our ECS Cluster […]
An unexpected journey from SAP consultant to AWS cloud architect
It has been three months since I decided to completely reshape my career moving from an SAP senior consultant role to an AWS cloud solutions architect role. I knew this was an unconventional move, and several risks were involved in the process, but it has been a marvellous experience so far, and today I can talk with […]
AWS Amplify: Create Custom Resolvers Programmatically (to fetch data from AWS RDS databases)
AWS Amplify is an amazing open-source project from AWS that helps you build secure, scalable mobile and web applications. In this post, I will help you to create custom resolvers programmatically in AWS Amplify without relying on the AWS Console and keeping everything as code that in the past, you either needed to use the […]
Upgrade Elasticsearch from 2.3 to 7.4
Photo by Marten Newhall on Unsplash Sometimes it is common just to deploy a Elasticsearch domain at AWS and forget to keep it up-to-date with the latest version. After a while, you realize that it’s five major releases behind the stable version and there’s no straight path to upgrade. The idea of this post is to show the […]
AWS ECR — Improving container security by using Docker image scanning
Photo by Bernard Hermant on Unsplash Following the HIPAA compliance along with our Foundation and application modernisation, we have been asked to add more security layers, especially on the application modernisation step. How to create a docker image repository? In your AWS console on the search bar, look for ‘Elastic Container Registry’ and then ‘Create repository’. You will see this […]
DNX Tech Update: April-May
At DNX we are committed to democratizing cloud technologies. Part of our plan is to develop and release to the public a large part of what we use with our clients. After a little more than 1 year, this strategy translated into: And here’s our update of that happened in the last few months. DNX […]