We share professional insights on cloud-native, DevOps & operations, Kubernetes, observability & monitoring, and Linux systems.
The article explains why Nginx can sustain tens of thousands of simultaneous connections by using non‑blocking sockets, an epoll‑driven event loop, a fixed pool of worker processes, shared memory and memory‑pool optimizations, contrasting this design with Apache's prefork model.
The article reviews the most popular Chinese AI agent platforms—including QClaw, ArkClaw, CoPaw, DuClaw, KimiClaw, and MaxClaw—detailing each product’s core capabilities, ecosystem integration, deployment options, pricing models, and the trade‑offs that affect everyday users.
The article explains why the Kubernetes Dashboard has been deprecated due to security and multi‑cluster limitations, and introduces Headlamp as the officially endorsed, lightweight web UI that offers multi‑cluster management, strict RBAC enforcement, and extensible plugins, with simple installation steps.
This article explains how to centralize MySQL backup management on Kubernetes by creating a dedicated namespace, PVC, and CronJob, then shows commands to monitor jobs and restore databases from compressed backup files, providing a complete, repeatable solution for DBAs.
This guide explains how to set up Prometheus monitoring for PostgreSQL using the open‑source postgres_exporter, covering both single‑node Docker installation and multi‑node configuration with custom authentication files and Prometheus scrape settings.
This guide explains why gray (canary) releases are essential for production stability in internet companies, and provides step‑by‑step configurations using Istio’s VirtualService, Gateway, and DestinationRule resources to route traffic by percentage or request headers in a Kubernetes cluster.
Kubernetes announced the deprecation of Ingress NGINX with limited maintenance until March 2026, urging users to adopt the GA‑ready Gateway API—offering better scalability, clear status fields, and native support for AI workloads—while providing migration guidance, code examples, and performance benchmarks.
The upcoming Kubernetes v1.35 release will drop cgroup v1, deprecate kube-proxy ipvs mode, end support for containerd v1.x, and introduce alpha node‑declared features, in‑place pod resource updates, native pod certificates, numeric taint comparisons, user‑namespace support, and OCI‑based volumes, all aimed at improving stability and security.
This article introduces Terraform, an open‑source Infrastructure as Code tool, explains its core concepts such as declarative programming, resources, providers, and state management, and walks readers through the complete workflow from writing configurations to applying and destroying cloud resources.
This article compares VMware's costly virtualization suite with four open‑source alternatives—KVM, Proxmox VE, oVirt, and OpenStack—detailing each solution's core features, performance, management tools, and suitability for enterprise IT cost reduction.
