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 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.
This article details a step‑by‑step rescue of a CentOS 7 server that failed with GLIBC errors after mixing CentOS 7 and CentOS 8 packages, showing how to mount the ISO, reinstall glibc, fix broken symlinks, restore PAM, Python, and other core components until the system boots normally.
This comprehensive guide covers Elasticsearch fundamentals—including core concepts, data model, cluster roles, indexing, mapping, inverted index, query DSL, aggregation, pagination, performance tuning, operational monitoring, security, high availability, and real‑world use cases—providing interview‑ready knowledge and practical tips for developers and ops engineers.
This article walks through extending the K8s Chat command‑line tool by adding an ‘analyze event’ command that gathers warning‑level events and pod logs, stores them in a map, and sends the information to a large‑language model via OpenAI’s API to receive actionable troubleshooting recommendations, while also suggesting further enhancements such as self‑healing and visualization.
This tutorial shows how to combine Kubernetes client‑go, the Cobra CLI framework, and OpenAI function calling in Go to create an interactive command‑line assistant that can generate YAML, deploy resources, query objects, and delete items in a Kubernetes cluster.
