Android Migration – Kotlin and Jetpack

A few years ago, I've published a small application on Android's Play Store: SCOSSO .SCOSSO is a simple, user-friendly but yet a powerful tool for rapid visual surveying of structures with any material and characteristics. SCOSSO is my first Android application, it was developed between 2016 & 2017 using Java and the Support Library. Over …

Istio-Proxy Ingress SSL Certificate Integration the old fashioned* way(no SDS)

Over the past weeks, I've been working with a colleague of mine on a project that required some significant customization of Istio on Google Kubernetes Engine. The work is fairly advanced and new in the space. He did a very good blog post on this, go check it out : https://medium.com/@jaroslav.pantsjoha/istio-proxy-ingress-ssl-certificate-integration-the-old-fashioned-way-no-sds-d4a740f48cdf

How-to : Convert OpenSSH private keys to RSA PEM

After upgrading to MacOS X Mojave, I've found myself in the curious situation that creating a private key with the usual command: ssh-keygen,  would output the private key in the format : -----BEGIN OPENSSH PRIVATE KEY----- b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAA... -----END OPENSSH PRIVATE KEY----- Which it's the new format for those keys. Unfortunately, this format is not supported by all …

OpenSees – A simple docker image

It's great to see that even a small work done for academia can make a positive impact, with Carmine Galasso of EPICentre UCL. Last year, I've created a Docker image for OpenSees, a software used for earthquake modeling. This allowed a deployment in a Kubernetes cluster, it's a simple way to automate scaling the computational effort. …

HAproxy and DNS in the cloud

HAproxy is a great tool that we all know and love.(Well, in case you don't...go here!). It is, however, surprising how, even basic features, are not default. In particular, today I stumbled upon the configuration for HAproxy for dynamic DNS resolution. In most cloud environments, nodes are coming and going all the time, and this happens while …

A “DevOps team” work organization (I)

We often hear about what DevOps is or what are the tools to achieve DevOps in your organization (whatever it means), we know of Terraform and Cloudformation but we rarely see a definition of the principles behind the work organization of our teams. At Curve, I was exactly hired to create and structure the SRE/DevOps team of the company. …

A “DevOps team” work organization (II)

This is the second part of an article about the work organization of my DevOps team. You can find the first part here Small batches of work Without entering the rabbit hole of the Toyota production system and the theory of the value stream, I remember how most of the IT professionals I've worked with …

Postgres’s invisible data or the curious case of the intangible length

A few days ago at Curve, our developers had some problems dealing with data coming from our database and they asked for help. Apparently, a query that was working in dev (TM), did not work as expected in production. Performing a sum on a certain set of rows was succeeding, whether a simple select was mysteriously …

Site Reliability Engineer – In Search of a Unicorn

At Curve, we’re rolling on the “Great Fintech Adventure”™  of revolutionizing the way in which you spend and manage your money. At its very core, the company is a blend of Finance and Engineering.  Two disciplines that get together to deliver at your doorstep the Curve card that you know and love. Engineering is working …

How to connect to a EC2 instance using Powershell

Hi guys, I don't exactly know why but apparently there are no articles out there, with a good step by step guide to connect from your local pc to a Windows Server 2012 R2 instance hosted on Amazon AWS on EC2, this short article aims to fill this gap: ASSUMPTIONS : This article assumes some …