China’s CRISPR twins might have had their brains inadvertently enhanced

The brains of two genetically edited girls born in China last year may have been changed in ways that enhance cognition and memory, scientists say. The twins, called Lulu and Nana, reportedlyhad their genes modified before birth by a Chinese scientific team using the new editing tool CRISPR. The goal was to make the girls […]

Kubernetes Metrics and Monitoring

This post explores the current state of metrics and monitoring in Kubernetes by walking through the gradual thought process that I experienced when learning this topic. Kubernetes needs some metrics for it’s basic out-of-the-box functionality, like autoscaling and scheduling. This is regardless of any monitoring solution you may want for the purpose of troubleshooting and […]

Kubernetes Operations: Prioritize Workload in Overcommitted Clusters

One of the benefits in adopting a system like Kubernetes is facilitating burst-able and scalable workload. Horizontal application scaling involves adding or removing instances of an application to match demand. Kubernetes Horizontal Pod Autoscaler enables automated pod scaling based on demand. This is cool, however can lead to unpredictable load on the cluster, which may […]

Use Istio traffic mirroring for quicker debugging

Often when an error occurs, especially in production, one needs to debug the application to create a fix. Unfortunately the input that created the issue is gone. And the test data on file does not trigger the error (otherwise it would have been fixed before delivery). Likewise if one is creating new code, one often […]

Kubernetes Ingress Controllers: How to choose the right one: Part 1

In this article, I will share my experiences with 3 major types of Kubernetes ingress solutions. Let’s go through their pros and cons and find out which one suits your needs. How does it work behind thescene? First, Let’s deploy a hello-world service with 2 Pods running in demo namespace. Next, We apply the hello-world […]

When AWS Autoscale Doesn’t

The premise behind autoscaling in AWS is simple: you can maximize your ability to handle load spikes and minimize costs if you automatically scale your application out based on metrics like CPU or memory utilization. If you need 100 Docker containers to support your load during the day but only 10 when load is lower […]

Istio and Kubernetes in production. Part 2. Tracing

In the previous post, we took a look at the building blocks of Service Mesh Istio, got familiar with the system, and went through the questions that new Istio users often ask. In this post, we will look at how to organize the collection of tracing information over the network. The first thing that developers […]

Ambassador: Building a Control Plane for an Envoy-Powered API Gateway on Kubernetes

This article provides an insight into the creation of the Ambassador open source API gateway for Kubernetes, and discusses the technical challenges and lessons learned from building a developer-focused control plane for managing ingress or ‘edge’ traffic within microservice-based applications. Key Takeaways Developed by Datawire, Ambassador is an open source API gateway designed specifically for […]