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The latest News and Information on DevOps, CI/CD, Automation and related technologies.

An in-depth look at 100% Zero Downtime deployments with Terraform

At Checkly, we run our browser checks on AWS EC2 instances managed by Terraform. When shipping a new version, we don’t want to interrupt our service, so we need zero downtime deployments. Hashicorp has their own write up on zero downtime upgrades, but it only introduces the Terraform configuration without any context, workflow or other details that are needed to actually make this work in real life™.

Packets per Second in EC2 vs Amazon's Published Network Performance

First, let me say that I know AWS doesn’t promise anything about network performance as it relates to packets. At best, they leave it as a multivariate calculus problem for the reader — inclusive of CPU performance, code optimization, MTU, and current network congestion under the VLANs. But still, I was curious to see if there was any correlation to Amazon’s published “Network Performance” and the actual packets per second metric I tested.

Configuring a Build Pipeline on Azure DevOps for an ASP.NET Core API

Joao Grassi — a .NET developer, front-end hobbyist, and friend of Sentry — likes .NET very much and recently tried to bring a friend to the “dark side” of .NET development. To win a point, he decided to create a small sample project using Azure DevOps. As he started, he struggled to find helpful information in the documentation (like how to control the artifact name).

How to Triage Test Failures in a Continuous Delivery Lifecycle

Continuous testing has evolved to become an important phase in modern application development and delivery. When we at Sumo Logic sketched out a plan to start delivering our microservices continuously, we knew we needed to define a delivery pipeline, which would run our automated tests and provide feedback in early phases of development.