To meet user demand, dynamic HTTP-based applications require constant scaling of Kubernetes pods. For applications exposed through Kubernetes ingress objects, the AWS Application Load Balancer (ALB) distributes incoming traffic automatically across the newly scaled replicas. When Kubernetes applications scale down due to a decline in demand, certain situations will result in brief interruptions for end […]

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Migrate to Karpenter from Cluster Autoscaler

Kubernetes is a scalable container orchestrator that helps you build fault-tolerant, cloud native applications. It can handle automatic container placement, scale up and down, and provision resources for your containers to run. While Kubernetes can take care of many things, it can’t solve problems it doesn’t know about. Usually these are called unknown unknowns and […]

Many developers use Docker the old-fashioned way -- a docker build and a docker run. Some non-obvious ways to use Docker. As a compiler. I gave a talk at DockerCon back in 2019 about the potential to use Docker as a compiler, and the idea is finally coming to fruition.

For every deploy, scale down event, or pod termination, users of GitLab's Pages service were experiencing 502 errors. This explains how we found the root cause and rolled out a fix for it.

Amazon Elastic Kubernetes Service (Amazon EKS) managed service makes it easy to run Kubernetes on AWS without needing to install, operate, and maintain your own Kubernetes control plane. When Amazon EKS was made generally available in 2018, it supported self-managed node groups. With self-managed node groups, customers are responsible for configuring the Amazon Elastic Compute […]