Cloudflare Saves 100TB of RAM, AI Drives Server Prices Up, AWS Adds a Fourth London AZ, Route 53 DNS Self-Service, AKS eBPF Routing, Go 1.27, and the Danger of Hidden Infrastructure Assumptions

This week on Ship It Weekly: Cloudflare explains how five low-level optimizations to the cache behind 1.1.1.1 freed roughly 100 terabytes of RAM while also improving performance. OVHcloud is raising infrastructure prices as AI demand reshapes the memory supply chain. AWS adds a fourth Availability Zone to London, exposing automation that quietly assumed there would always be three. And Route 53 Global Resolver gets a cleaner cross-account model for DNS self-service.The bigger theme this week is assumptions. A few wasted bytes do not matter until you have 250 billion cache entries. A Region having three Availability Zones feels permanent until AWS adds a fourth. And centralized DNS governance works fine until every application team needs a networking ticket just to make a private zone resolvable.In the lightning round: new research looks at manipulating DRAM controller translation registers and the assumptions that creates for memory isolation, AKS eBPF Host Routing reaches general availability, CloudFront Functions can now put custom context directly into access logs, and Go 1.27 lands generic methods along with runtime, tooling, and standard-library improvements.And the human closer looks at an easy Kubernetes mistake: running kubectl against the wrong cluster. Because the active context belongs to the kubeconfig rather than a terminal tab, changing it in one shell can silently affect another. It is a good reminder that some friction is worth keeping around production, and that the safest guardrails live somewhere stronger than operator memory.LinksCloudflare: How We Saved 100 Terabytes of Memory by Optimizing 1.1.1.1’s DNS Cache https://www.tellerstech.com/go/s-9d6c2943/OVHcloud Raises Prices as AI Memory Demand Reprices Non-AI Infrastructure https://tsn.io/tnaYjAWS Adds a Fourth Availability Zone to Europe (London) https://tsn.io/YfGxaShared DNS Views with Amazon Route 53 Global Resolver https://tsn.io/WEyigDRAM Controller Register Manipulation Breaks CPU Memory Isolation https://tsn.io/QKr1xAKS eBPF Host Routing https://tsn.io/T3PMhCloudFront Functions Unified Logging https://tsn.io/nTXLnGo 1.27 https://tsn.io/vfXITkubectl Ran on the Wrong Cluster? Fix Your Context Switching https://tsn.io/6LxfGThis Week’s On Call Brief https://tsn.io/064QEShip It Weekly https://www.tellerstech.com/go/siw/On Call Brief https://www.tellerstech.com/go/ocb/