Maintained by a like‑minded team, covering both operations and development. Topics span Linux ops, DevOps toolchain, Kubernetes containerization, monitoring, log collection, network security, and Python or Go development. Team members: Qiao Ke, wanger, Dong Ge, Su Xin, Hua Zai, Zheng Ge, Teacher Xia.
This article reviews the 2026 observability landscape, outlines selection principles, compares open‑source and commercial solutions for data collection, storage, alerting and event management, and discusses how AI is reshaping monitoring and AIOps practices.
This article compiles twelve high‑profile internet service failures from 2025, detailing each incident’s description, micro‑scenario, technical root cause, and risk perspective, and extracts actionable lessons on infrastructure resilience, change management, and security‑aware operations.
This guide walks you through installing the Harvester MCP server on Windows, configuring it with a kubeconfig, and integrating it into Cursor's MCP settings so you can query and generate Kubernetes commands directly from your editor.
This guide walks you through setting up a complete tracing pipeline using OpenTelemetry, Grafana Tempo, and Jaeger with Docker‑Compose, covering Tempo installation, collector configuration, sample application deployment, and Grafana UI integration to visualize traces, including code snippets and step‑by‑step commands.
This guide walks you through the architecture, deployment, and configuration of the Rust‑based OpenObserve observability platform together with the high‑performance Vector data pipeline, covering log, metric, and trace collection, Docker‑Compose setup, UI usage, and common FAQs for small teams.
This article explains how the Jenkins Role Strategy plugin’s UI can become unresponsive with many users, introduces a Go SDK that wraps its REST API, demonstrates permission template, role, and user/group management code, and shows how to build a simple Gin‑based web UI for role assignment.
This article explains the internal architecture and source‑code flow of Kubernetes Horizontal Pod Autoscaler, detailing how components like HorizontalController and ReplicaCalculator compute desired replicas, why a default 10% tolerance can prevent scaling even when CPU exceeds the target, and how behavior policies and scaling limits influence HPA decisions.
Learn step-by-step how to mount a CentOS ISO into rescue mode, activate LVM volumes, run XFS repair (or ext4 fsck), and then restore a Windows Server 2022 virtual machine’s bootloader using diskpart, bootrec, and bcdboot commands, ensuring both Linux and Windows systems boot correctly.
This guide walks through creating a Kubernetes Operator using Kubebuilder to manage a GPU spot‑pool on Tencent Cloud, covering CRD design, controller logic, code generation, and deployment steps, enabling automated scaling of GPU resources for AI workloads while illustrating core Cloud‑Native concepts.
This article details a step‑by‑step recovery of a Ceph placement group that entered inactive and incomplete states after a data‑center power loss, explaining the meanings of these states, attempted repairs, use of ceph‑objectstore‑tool to manipulate PG replicas, and restoration of lost RBD image metadata.
