As holders of the Migration Consulting Competency from AWS, we are often deeply involved in cloud migration projects. We recently tackled a seemingly straight forward migration of an on-premise Postgres database to AWS Aurora. This database was a data warehouse that was shared by many teams and contained more than...

Deployments So far we’ve been deploying pods directly. This has been a great way to gain familiarity with Kubernetes, but typically, we’ll rely on some other workload resource to create our pods for us. In this section, we’ll look at the Deployment resource. Creating a deployment isn’t too different from...

Pod Communication Our “applications” haven’t been too exciting so far. We’ve created some nginx pods and sent a few HTTP requests, but these pods aren’t talking to each other. Kubernetes complements a microservice architecture, but even if you follow a monolithic application design approach, we can anticipate there will be...

Namespaces We’ve only created one pod so far. Kubernetes wouldn’t be very special if we could only run one pod, so let’s try running multiple pods. $ kubectl run app-1 --image=nginx:1.24 pod/app-1 created $ kubectl run app-2 --image=nginx:1.24 pod/app-2 created $ kubectl run app-3 --image=nginx:1.24 pod/app-3 created It seems like...

Introduction Kubernetes is a divisive topic in the world of software development. There seems to be an ardent following of both promoters and detractors. For some, Kubernetes is a herald to the upcoming golden age of cloud native software. We are on the cusp of reveling in workloads and infrastructure...

If you’re here, you’ve probably identified a serious performance bottleneck in your code, and need a way around it. That’s where my team was about a year ago. Our application is a large raster calculator that either renders the raster into a picture, or summarizes the dataset represented by the...

Source Allies, like many organizations, has several AWS environments. In addition to production we also have a dev and a qual environment. An application deployed to all three environments will be running three copies of its infrastucture. If that architecture includes RDS databases, EC2 instances, ECS tasks, or other compute...

One of the main advantages of choosing a micro-service architecture for the services that back a company’s web application is to allow multiple teams to independently own components of the system. These components can choose different tech stacks, architecture choices, and deploy features and updates on different schedules. When it...

Do you remember the first time a feature in an application surprised you? Have you ever thought, “Wow, that’s actually making my life easier?” I remember the first time I clicked on a phone number while browsing a website on a mobile phone and it opened the dialer. “All I...

Summary: Why should we bake accessibility into the digital products we build? It’s the right thing to do Provides a better user experience for EVERYBODY, disability or not Increases mobile usability Improves a site’s SEO ranking Protects our partners from litigation It’s the direction the world is headed Back in...