Ansible is a model-driven configuration manager that uses SSH for remote connections, featuring a core engine, modules, plugins, playbooks, connection plugins, and host inventories; this guide explains its architecture, operation flow, and details the seven primary commands with usage examples.
This guide presents a collection of advanced kubectl techniques—including printing API details, filtering and deleting pods by status, counting pods per node, analyzing pod distribution across machines, and leveraging kubectl proxy—providing practical command examples and explanations for experienced Kubernetes users.
This article explains how the git‑poison tool, built on go‑git, provides a repository‑agnostic, automated solution for tracking, querying, and preventing recurring bugs in large, multi‑branch development teams, dramatically reducing manual coordination and release risk.
This article explains Docker and container technology, contrasting it with virtual machines, describing how containers provide lightweight, fast-starting, isolated environments, outlining Docker's core concepts, commands, and underlying Linux kernel features such as namespaces and cgroups, and summarizing their benefits for developers and operations.
This article reviews the best open‑source vulnerability scanners for web applications, databases, and infrastructure in 2023, detailing each tool’s key features, advantages, disadvantages, and guidance on who should or should not use them.
This tutorial walks through installing the etcd client, creating an Nginx deployment for verification, backing up the etcd data store, validating the backup, and restoring the backup to a Kubernetes cluster while handling component shutdown and restart procedures.
This article explains how developers can dramatically improve productivity by using the free Alibaba Cloud Toolkit IDE plugin to automate packaging, remote deployment, SSH proxy, real‑time log viewing, and quick Dubbo project creation across Windows, ECS, EDAS, and Kubernetes environments.
This guide explains how to register for Akuity Academy's free ArgoCD GitOps introductory course, walk through the training modules, complete the hands‑on GitOps experiment, and obtain the certification badge, providing a practical pathway for DevOps practitioners to master continuous delivery with Argo CD.
This article explores how the rise of cloud‑native technologies forces traditional operations to transform into service‑oriented platforms, detailing new organizational structures, the OPaS model, onion‑layered migration, practical steps, and key lessons for successful ops modernization.
This article outlines a comprehensive, lightweight CI/CD automation solution built on DevOps principles, detailing the evolution from traditional deployment to containerized workflows, the design of a multi‑project, plug‑in task system, and practical implementation steps using GitLab CI, Docker, and Go.
This article shares practical kubectl tips—including printing API calls, filtering and deleting pods, counting pod distribution, and using kubectl proxy—to help experienced Kubernetes users work more efficiently and troubleshoot clusters with powerful command‑line shortcuts.
Datree is an open‑source CLI tool that validates Kubernetes YAML files, enforces custom policies, and prevents misconfigurations without needing cluster access, offering dashboard‑driven rule management and a step‑by‑step example that shows how to fix memory and CPU limits in a deployment manifest.
This guide walks through setting up a Kubernetes cluster with NFS storage, loading Jenkins and agent Docker images, configuring ArgoCD, deploying Jenkins via declarative manifests, initializing Jenkins, creating and deploying a static Jenkins agent, and troubleshooting common issues, providing full code snippets and screenshots.
When Tencent Meeting’s user base exploded to 300 million, its Git repository ballooned to over 17 GB, crippling clone speed, so the team devised a comprehensive slimming process that removed old history, migrated large files to LFS, created a new repo, handled special branches, adapted platform settings, and verified the result, ultimately reducing the repo size from 9 GB to 350 MB.
This article explains how to use a Dockerfile to customize Docker images, covering the purpose of each instruction such as FROM, RUN, COPY, ADD, CMD, ENTRYPOINT, ENV, VOLUME, EXPOSE, and WORKDIR, and provides practical examples and best‑practice tips for building efficient, minimal images.
This article explains how Docker containers provide a lightweight, fast‑starting alternative to virtual machines, detailing their origins, technical differences, core concepts, basic commands, and underlying Linux mechanisms that enable consistent, efficient application deployment across environments.
Pacific Health Insurance’s Health Insurance Internet Open Platform passed the CAICT DevOps Continuous Delivery Level 3 assessment, showcasing how standardized DevOps practices, micro‑service architecture, and integrated toolchains can dramatically boost delivery efficiency, quality, and digital transformation for a leading Chinese insurer.
China Pacific Insurance’s subsidiary Tai Bao Technology successfully passed the CAICT DevOps Level‑3 continuous delivery assessment, sharing detailed insights on their agile transformation, tooling, metrics, challenges, and future plans that illustrate how standardized DevOps practices can boost efficiency and competitiveness in the insurance industry.
Datree is an open-source CLI that validates Kubernetes YAML files against customizable policies, allowing users to detect syntax errors, version mismatches, and resource limits without connecting to a live cluster, and it provides a dashboard for managing and editing rules.
This article explains the relationship between Docker and Kubernetes, clarifies why Docker knowledge isn’t mandatory for K8s beginners, and outlines the essential Docker skills needed to effectively work with Kubernetes clusters.
Tim's Coffee transformed its legacy systems into a fully containerized, micro‑service, cloud‑native platform, using Kubernetes, Dubbo, ARMS, Prometheus and Grafana to boost deployment efficiency, scalability, cost savings, and observability, while tackling alert storms and improving development productivity.
An accessible Chinese-to-English guide demystifies cloud native by likening it to a city, outlines its definition, core traits, evolution through three philosophical questions, practical “Wang’s Four Rules,” development stages from cloud‑hosted VMs to containers and serverless, and discusses applicability in private and traditional enterprises.
This guide walks you through provisioning a local Kubernetes environment using Terraform and Kind, installing essential tools like kubectl and ArgoCD, and deploying a cloud‑native continuous‑delivery pipeline, providing a repeatable setup for DevOps hands‑on training.
This article analyzes high‑profile service outages, defines the production environment and its components, categorizes five types of production changes, and presents a comprehensive change‑management framework—including organizational roles, step‑by‑step procedures, and best‑practice tips—to help teams reduce risk and maintain system stability.
The article explains how automated performance testing using Alibaba Cloud PTS—integrated with VPC‑based Kubernetes clusters, GitLab CI/CD pipelines, and cloud APIs—overcomes the inaccuracy, coordination delays, and resource waste of manual testing by providing on‑demand, scalable load generation, scenario orchestration, real‑time metrics, and cost‑effective reporting.
This article explores how Zong An Insurance has pioneered digital transformation in the financial technology sector over the past decade, achieving 100% cloud-native architecture, developing core systems like WuJieShan, and integrating AIGC technologies to create a comprehensive insurance ecosystem.
In a July 2023 interview, Minsheng Bank’s technology leaders discuss how their Software Engineering Support Platform, built on DevOps and DevSecOps principles, earned top-level assessments from the China Academy of Information and Communications Technology, boosting delivery quality, speed, and the bank’s overall digital transformation.
This article introduces Jianmu, an open‑source no‑code/low‑code CI/CD platform for DevOps, provides an online demo, details Docker‑Compose and Kubernetes deployment procedures, and walks through creating a first workflow project with WeChat integration.
The article details how China Postal Savings Bank leveraged the "Star Platform" and rigorous DevOps standards to achieve top-tier maturity in test case and test plan management, illustrating the bank's broader digital transformation, assessment outcomes, and future XOps directions.
Minsheng Bank’s Software Engineering Support Platform, built on DevOps and DevSecOps principles, passed the CAICT DevOps system and tool standards with top‑level scores, showcasing how standardized pipelines, cloud‑native automation, and quality gates can dramatically boost delivery speed, quality, and competitive advantage in the banking sector.
The article details the Bank of Communications' participation in the 2023 XOps Forum, its successful DevOps continuous‑delivery level‑3 assessment for two projects, the resulting efficiency gains, metrics, and future plans for expanding DevOps practices across the organization.
The article details how Shenwan Hongyuan Securities leveraged standardized DevOps practices and a continuous delivery pipeline to attain Level 3 maturity, improve security, accelerate delivery, and enhance overall competitiveness, illustrated through a Q&A session and key performance metrics.
The recent release of China Academy of Information and Communications Technology's DevOps, AIOps, and Identity Governance maturity model assessment results showcases extensive industry adoption, highlights the impact of standardization and tool empowerment on digital transformation, and provides detailed statistics across banking, securities, insurance, telecom, and other sectors.
Shenwan Hongyuan Securities showcased its advanced DevSecOps capabilities by passing the CAICT's DevSecOps security and risk management assessment and DevOps continuous delivery level‑3 evaluation, sharing detailed cultural, process, and technical practices that boost software security across the full lifecycle.
This article details how a rapidly expanding B2B fresh‑food company restructured its R&D organization, adopted a matrix management model, and built a comprehensive distributed infrastructure—including task scheduling, service discovery, messaging, logging, file storage, CDN, configuration, sharding, search, caching, and monitoring—to support nationwide warehouse operations and future growth.
This article explains the motivations for adopting KubeVirt, introduces its concepts and architecture, details the component design, and provides step‑by‑step instructions—including code snippets—for deploying KubeVirt, CDI, Ceph‑CSI, external snapshotter, creating VMs and exposing VNC, while outlining future directions for cloud‑native virtualization.
This guide explains what KubeLinter is, why it’s useful for cloud‑native security, how to install it via Go, Homebrew or source, and provides step‑by‑step instructions for linting Kubernetes and Helm manifests, customizing checks, and interpreting results.
Meiqia, a global intelligent cloud‑customer‑service provider, replaced a tangled multi‑middleware routing stack with a unified Higress gateway, achieving hot‑reloadable routing, WebSocket stability, multi‑cloud deployment, and a clear control‑plane/data‑plane separation that dramatically reduced costs and operational complexity.
This comic visually explains Kubernetes fundamentals and demonstrates how to implement continuous integration and continuous delivery pipelines on the platform, using a series of illustrated panels accompanied by translator notes and source references.
This guide explains how to set up a self‑hosted GitLab server on an Ubuntu virtual machine using Docker and Docker‑Compose, covering environment preparation, Docker image retrieval, compose file creation, container launch, password reset, and basic GitLab usage such as user registration, project creation, SSH key configuration, and code cloning.
The article outlines essential continuous delivery, architectural, product, lean management, and cultural capabilities—such as version control, automated deployment, trunk‑based development, test automation, value‑stream visibility, lightweight change approval, and supportive leadership—that together drive high‑performance DevOps outcomes.
This tutorial walks through creating a complete GitOps CI/CD pipeline on OpenShift using Tekton for builds and ArgoCD for declarative continuous delivery, covering installation, secret management, pipeline definition, webhook configuration, and verification of automated deployments.
This article provides a comprehensive guide to Jenkins pipelines, explaining the difference between declarative and scripted syntax, detailing pipeline components such as agents, stages, steps, post actions, directives, triggers, environment variables, credential handling, and Kubernetes integration for modern CI/CD workflows.
This article introduces KubeLinter, an open‑source tool that scans Kubernetes YAML files and Helm charts for best‑practice compliance, explains why it is useful, shows installation methods, provides usage examples, and details configuration and integration options for secure, production‑ready deployments.
This article describes Qunar's comprehensive root cause analysis platform, detailing its background, data-driven fault categorization, architecture—including trace, runtime, middleware, and event analysis modules—and demonstrates its high accuracy and practical impact on reducing incident resolution times across microservice services.
This article explains how DevSecOps integrates security into DevOps pipelines, outlines its definition and differences from traditional DevOps, reviews popular tools such as Trivy, Gerrit, OWASP Dependency‑Check, Arachni, and Falco, and highlights the operational and cost benefits of early security integration.
The 2023 CNCF user survey of Argo CD and Argo Rollouts reveals high adoption rates, strong Net Promoter Scores, dominant usage by DevOps and platform engineers, expanding production deployments, and growing ecosystem integrations, highlighting opportunities and challenges for the GitOps and progressive delivery landscape.
This article explores common pain points in test development, demonstrates how Shell scripting can automate repetitive Linux tasks, introduces basic commands like copy and concatenate, and presents real‑world case studies such as auto‑comment generation, memory‑usage monitoring, service management, and function encapsulation to boost productivity.
Platform engineering is an emerging technical approach that automates infrastructure operations to provide self‑service capabilities, improve developer experience, boost productivity, and accelerate the delivery of business value, with trends such as Everything‑as‑Code and strong industry adoption forecasts.
This article examines how Mercedes‑Benz Tech Innovation expanded its Kubernetes management to public clouds using Cluster API, achieving automated cluster creation, faster rolling upgrades, self‑service capabilities, and a ten‑fold increase in managed clusters while maintaining high availability.
Learn how to install Ansible, then create, modify, and delete crontab entries across multiple hosts using Ansible playbooks, with detailed examples of YAML configurations and command-line instructions that illustrate Infrastructure as Code for reliable scheduled task management.
By configuring Nginx as a caching gateway within a Kubernetes cluster, this article shows how to dramatically reduce read latency to third‑party services, achieve high cache hit rates, ensure availability during outages, and handle cache persistence across pods using S3‑backed storage.
This article reviews ten popular Kubernetes monitoring tools—including Helios, Prometheus, New Relic, Grafana, DataDog, Sysdig, Zabbix, AppDynamics, Dynatrace, and Sensu—detailing their key features and how they help improve performance, reliability, and observability of containerized applications.
This guide compiles a comprehensive list of the best open‑source DevOps tools—including version control systems, build automation, CI/CD platforms, container runtimes, configuration managers, and monitoring solutions—explaining their core features and typical use cases for modern software delivery pipelines.
This guide explains what kubectl is, how it interacts with the Kubernetes API server, and provides a categorized list of essential commands for retrieving information, debugging, state management, scaling, deployment, and security, helping users efficiently operate and automate K8s clusters.
This article introduces the Jenkins Deploy Dashboard plugin, explains how to visualize deployment status across environments, add new releases to the dashboard, create custom deployment views, and integrate deployment buttons into pipelines using both scripted and declarative Jenkins pipelines.
This guide explains why smaller Docker images improve security, transfer speed, and deployment time, and walks through ten practical techniques—including layer minimization, Docker‑squash, slim base images, multi‑stage builds, apt flags, .dockerignore, and specialized tooling—to reliably reduce image size.
This article recounts a year‑long effort by a senior SRE engineer to redesign a private cloud platform, detailing the motivations, architectural choices, SSO and RBAC implementations, workflow automation, GitOps deployment, release engineering improvements, and the cultural shift toward metrics‑driven development.
China Life (Overseas) detailed how its OnePartner insurance marketing platform achieved advanced DevOps continuous‑delivery maturity through CAICT assessment, highlighting the benefits, challenges, and future plans of standardised, tool‑enabled digital transformation for the insurance industry.
ICBC Trust Fund Management’s Transaction Management Platform passed the CAICT DevOps Continuous Delivery Level 3 assessment, showcasing how standardized DevOps practices, tool empowerment, and cultural change dramatically cut build times, accelerate releases, and boost overall digital transformation efficiency.
China Information Communication Research Institute announced that Shanghai Financial Futures Information Technology Co., the tech subsidiary of the China Financial Futures Exchange, passed the DevOps Continuous Delivery Level 3 assessment, marking the first such achievement among domestic securities and futures exchanges and showcasing how standardized DevOps practices can boost digital transformation, quality, and efficiency.
The China Academy of Information and Communications Technology released the newest DevOps Capability Maturity Model evaluation results, showing that 78 leading firms across banking, finance, internet, and telecom sectors have collectively completed 224 projects, highlighting the impact of standardization and tool empowerment on enterprise competitiveness.
China Pacific Insurance’s four flagship projects passed the CAICT DevOps continuous‑delivery level‑3 assessment, showcasing how standardized DevOps practices, a unified cloud‑native platform, and a "evaluate‑to‑improve" strategy can dramatically boost software delivery efficiency and drive digital transformation across the insurance sector.
ICBC‑RS Fund Management’s Transaction Management Platform passed the China Academy of Information and Communications Technology’s DevOps Continuous Delivery Level 3 assessment, showcasing significant improvements in build times, release cycles, and organizational efficiency while highlighting the cultural and tooling benefits of standardized DevOps practices.
This article details how Shanghai Financial Futures' technology subsidiary passed the Level 3 Continuous Delivery assessment of the national DevOps maturity model, showcasing the platform’s cloud‑native architecture, metric‑driven improvements, challenges faced, and future plans for scaling DevOps practices across the exchange.
The June 2023 release by China’s Academy of Information and Communications Technology details how 78 leading firms across banking, finance, telecom and internet sectors have passed the DevOps Capability Maturity Model assessments, highlighting the impact of standardized pipelines, tool empowerment and industry‑wide adoption on quality, efficiency and competitiveness.
China Life (Overseas) passed the CAICT DevOps continuous delivery Level 2 assessment, showcasing how standardized DevOps practices and a one‑stop insurance marketing platform dramatically improved development efficiency, quality, and market competitiveness while highlighting challenges, outcomes, and future plans.
OrbStack provides a zero‑configuration, free virtualization solution on macOS that replaces Docker Desktop and traditional Linux VMs with faster startup, lower CPU and memory usage, seamless Docker integration, and a full Linux environment, making development on Apple Silicon both efficient and effortless.
vivo replaced fragile, engineer‑driven certificate handling with a centralized Vue‑2/Go platform that automates application, secure key storage, renewal alerts, and multi‑environment pushes, eliminating availability incidents and paving the way for future blockchain‑based, immutable certificate distribution.
This article explains how open‑source technologies drive digital transformation in finance, outlines the regulatory "Opinions" guiding secure, compliant use, and details a comprehensive open‑source security management framework—including lifecycle standards, a dedicated platform, DevOps integration, SBOM adoption, and continuous risk mitigation.
This article provides a thorough overview of DevOps fundamentals, differences from Agile, popular tools, lifecycle stages, CI/CD concepts, AWS roles, version control, SSH, Git commands, Jenkins architecture, Ansible, Puppet, Chef, Docker, Kubernetes, and related interview questions to help candidates prepare for DevOps engineering positions.
This article provides a concise overview of Jenkins, its architecture, key concepts, and best practices by presenting fifteen frequently asked interview questions along with detailed answers to help candidates prepare effectively for Jenkins-related job interviews.
This article outlines the evolution from manual operations to DevOps and SRE‑driven “big operations,” detailing system reliability and continuity practices, observability concepts, and the development of AIOps maturity standards, offering a comprehensive guide for building stable, efficient, and secure operational frameworks.
This article explains how to create and customize Helm charts by setting replica count ceilings, reusing logic with sub‑templates, and generating properly indented ConfigMaps using toYaml and indent functions, providing practical examples and command‑line snippets for Kubernetes deployments.
This article explains what a Kubernetes ConfigMap is, when to use it, and provides step‑by‑step instructions with YAML examples for creating a ConfigMap, mounting it in an Nginx deployment, and making the server_name parameter dynamic using pod metadata.
Helm is a Kubernetes package manager that simplifies application deployment by using charts, templates, and versioned releases, offering features such as easy installation, upgrades, rollbacks, dependency management, and integration with CI/CD pipelines, making it a key tool for cloud‑native operations.
This tutorial provides a complete, step‑by‑step guide to set up a one‑click automated deployment pipeline for a Spring Boot application using Docker, Jenkins, Maven, and shell scripts on a CentOS 7 host, covering installation, configuration, job creation, testing, and execution.
This guide explains why Docker image size matters for CI/CD and cloud deployments, then details ten practical methods—including layer minimization, multi‑stage builds, slim base images, apt flags, .dockerignore, and specialized tools—complete with code snippets and visual comparisons to help you create leaner containers.
This article introduces CI/CD as a DevOps approach, explains the challenges of selecting the right pipeline tool, and provides detailed overviews and key features of ten popular CI/CD solutions—including GitLab, Azure DevOps, GitHub Actions, CircleCI, Jenkins, and more—to help readers choose the best fit for their workflows.
This article provides a step‑by‑step guide on installing Jenkins, configuring global tools, creating a freestyle project, pulling code from GitLab, building a Java JAR, backing up existing JARs, copying the new package to a remote server, and performing a rolling Docker Swarm update, while also addressing common SSL and SSH issues.
This article explains GitOps as an automated, Git‑centric approach to managing cloud‑native infrastructure using IaC, pull requests, and CI/CD pipelines, detailing how it works, its components, deployment strategies, and the operational advantages it brings to modern software delivery.
The article argues that DevOps is still alive, explains the shortcomings of isolated operational practices, introduces platform engineering as the next evolution, and discusses practical considerations such as third‑party software selection, cloud‑native adoption, and the role of internal developer platforms in improving organizational efficiency.
Platform engineering at scale requires unified self‑service abstractions, domain‑specific languages like KCL, divide‑and‑conquer monorepo structures, robust modeling and automation, and a collaborative culture, as demonstrated by Ant Group’s KusionStack implementation that supports thousands of projects with a sub‑one‑to‑nine platform‑to‑developer ratio.
This guide explains what Podman is, how it differs from Docker, and provides step‑by‑step instructions for installing, configuring, and using Podman—including common commands, rootless operation, registry accelerators, volume handling, and essential configuration files—so you can manage containers without a daemon.
This guide walks you through installing Docker and Jenkins on CentOS 7, configuring Jenkins plugins, creating a freestyle job that builds a Spring Boot application with Maven, and deploying it via a Dockerfile for fully automated one‑click deployment.
This article introduces the 2023 developer roadmaps from roadmap.sh, offering detailed visual guides for frontend, backend, and DevOps technologies, explaining how these structured paths can help programmers learn efficiently, avoid blind trial‑and‑error, and access high‑resolution images and related resources for each stack.
This article introduces RunnerGo's automated testing features, detailing plan management, report management, scene import, task configuration, and how to view multi‑dimensional test results, while providing links to the project's GitHub and Gitee repositories for further exploration.
Discover how to transform nightly disk‑space alerts into automated self‑healing workflows, covering prerequisite standards, multi‑dimensional monitoring, CMDB integration, script‑based remediation, and multi‑channel notifications to scale operations across thousands of servers without manual intervention.
This article explains how to boost performance and reliability of third‑party service calls in a Kubernetes cluster by configuring Nginx as a caching gateway, covering cache settings, deployment, persistent shared cache via S3, and the associated limitations.
This article explains the concept of technical debt, its four-quadrant model, various debt types, and presents a six‑step process—including identification, visualization, prioritization, planning, execution, and review—to effectively manage and reduce technical debt for higher software quality and delivery speed.
Database schema changes are among the riskiest development tasks, and this article reviews top migration tools—from basic CLI clients like mysql and psql, through popular GUIs such as phpMyAdmin and DBeaver, to modern GitOps/Database-as-Code solutions like Liquibase, Flyway, Sqitch, Atlas, Prisma, and Bytebase—highlighting their features, pricing, and collaboration capabilities.
This article explains how AI large models such as ChatGPT can assist developers throughout the full workflow—from requirement analysis, technical design, and code generation to testing, deployment, and operations—while highlighting practical tips, potential pitfalls, and security considerations.
This article explains how the Android department uses Ansible to automate server deployment, detailing installation, inventory setup, playbook structure, and example configurations for Cockpit monitoring and GitLab Runner, including command snippets and code examples to streamline operations.
This guide walks you through installing Jenkins and Nexus via Docker, configuring a Maven hosted repository in Nexus, adding necessary Jenkins plugins and credentials, and creating a Jenkins pipeline that builds a Java project and publishes its artifacts to Nexus, enabling automated CI/CD for your applications.
This document presents a detailed curriculum for a cloud‑native DevOps training program, covering Docker, Kubernetes, Helm, Prometheus, Grafana, Loki, CI/CD pipelines, GitOps, Istio, Containerd, and related operational tools across more than ninety structured lessons.
This tutorial explains how to create, configure, and troubleshoot a Jenkins multibranch pipeline that automatically builds, tests, and deploys code based on Git branches and pull‑request events, including a complete Jenkinsfile example and webhook setup for seamless CI/CD integration.
This tutorial demonstrates how to install the python-jenkins library, explore its extensive API methods, and use Python scripts to create, copy, configure, and control Jenkins jobs, nodes, views, plugins, and builds, providing practical examples and code snippets for each operation.
This guide explains Jenkins pipelines, covering the two syntax styles—Declarative and Scripted—along with agents, stages, steps, directives, parameters, triggers, environment variables, credential handling, parallel execution, and post‑actions, providing complete code examples for each feature.
The article examines the challenges of end‑to‑end automated testing, explains why it often becomes complex and costly, and advocates for a testing strategy that emphasizes deterministic, atomic tests, continuous delivery pipelines, and contract testing to reduce reliance on fragile full‑system tests.
This tutorial explains how to install the Jenkins Active Choices plugin and create dynamic, script‑driven parameters—including checkboxes, radio buttons, and reactive fields—to enhance pipeline builds with flexible UI controls.
