This article explains iptables fundamentals, its table and chain architecture, common command syntax with practical examples, and demonstrates how iptables is leveraged in Kubernetes and Istio Service Mesh to intercept and redirect pod traffic for advanced service‑mesh capabilities.
This article explains how ZheZhe leverages Jenkins as an open‑source, plugin‑rich CI scheduler to classify projects, manage unified build scripts and config files, orchestrate job creation, execution, and cleanup, and scale a mixed Linux/macOS build farm supporting thousands of daily compilations.
This guide walks through creating the necessary Kubernetes resources with a recommended YAML file, applying it, exposing the dashboard via NodePort, generating a service account and token, and finally accessing the dashboard through a browser for cluster monitoring and management.
This comprehensive guide walks you through Docker fundamentals, compares containers with virtual machines, explains core concepts, shows step‑by‑step installation, image building, container execution, and best practices, enabling you to containerize and deploy web applications efficiently.
The talk explains why enterprise‑grade development needs serverless—boosting efficiency, cutting costs, eliminating ops, and enabling elastic scaling—then positions serverless within microservices, showcases Tencent Cloud’s TEM platform built on EKS with plug‑in services, and demonstrates serverless middleware such as Pulsar‑based queues, highlighting developer, ops, and business advantages.
This article outlines practical shell‑script guidelines for automating system and application operations, covering script header conventions, formatting, error handling, safe use of commands, variable handling, file packaging, pipeline restrictions, concurrency locks, logging, and risk‑mitigation strategies to make automation both efficient and secure.
This guide explains the origins of GitOps, introduces Argo CD’s architecture and core concepts, and provides step‑by‑step instructions for installing, configuring, and operating Argo CD on Kubernetes, including CLI usage, cluster registration, application creation, synchronization, and health monitoring.
The article reveals that while DevOps has exploded with trends like Hybrid Deployments, DataOps, and GitOps, the overlooked but critical shift toward non‑invasive production debugging—providing code‑level observability without disrupting services—will become essential for modern DevOps teams.
This article explains how to design and deploy a highly available Redis architecture using Sentinel, covering failure scenarios, evaluation of common HA solutions, step‑by‑step configurations from a single‑node setup to a three‑Sentinel deployment, and practical tips such as using virtual IPs for seamless client access.
This article provides a comprehensive introduction to Docker, explaining how Linux containers isolate processes, how Docker packages applications and dependencies into portable images, and why Docker simplifies environment management, version control, sharing, and deployment for modern cloud‑native workflows.
To accelerate CI/CD pipelines, the article recommends using self‑hosted GitLab Runners on a private cloud to eliminate network bottlenecks, caching build dependencies locally, employing lightweight Alpine images for faster container pulls, and limiting job execution to changed files via the only:changes directive.
This article explains Jenkins declarative pipeline syntax, showing how to define pipelines, agents, stages, and steps with code examples—including simple and Docker‑based pipelines—and describes optional elements such as environment variables, options, tools, triggers, parameters, and post‑actions, providing a practical guide for DevOps practitioners.
This article explains the fundamentals of microservices architecture, outlines its core characteristics and key benefits, and discusses why specialized testing strategies—including system‑level and service‑level performance testing—are essential, while recommending several load‑testing tools for effective evaluation.
The article explores the rising DevOps trend of non‑invasive production debugging, explaining its advantages over traditional log‑based methods, detailing instrumentation techniques, showing code examples, and highlighting its impact on key DevOps metrics and industry adoption.
This article presents a comprehensive architecture design for a rapidly growing online education platform, covering background challenges, high‑availability and scalability goals, core design principles, a multi‑layer solution including application, infrastructure, service topology, unified technology stack, standardization, modular services, micro‑service migration, and database and DevOps strategies.
This article introduces Zabbix, an open‑source enterprise monitoring system, outlines its key features such as rich visualization, high availability, and diverse data collection methods, and provides a step‑by‑step guide to setting up server‑side automatic discovery and related actions.
This article provides a comprehensive overview of Argo CD, a Kubernetes‑native GitOps continuous deployment tool, covering its architecture, core components, supported manifest types, key features, installation steps, cluster configuration, application creation, and synchronization methods using both CLI and UI.
This article shares a comprehensive Ansible presentation, offering detailed slides that guide readers through core concepts, architecture, modules, and best practices to enhance their automation expertise, including real-world examples, workflow automation strategies, and tips for effective playbook development.
iQIYI’s Little Deer Chaos Platform injects faults and runs red‑blue attacks across production services, enabling teams to validate alerts, circuit‑breakers, and fail‑over mechanisms—demonstrated by video playback and membership service case studies—thereby fostering zero‑trust design, faster skill growth, and resilient cloud‑native operations.
This article introduces and compares fourteen widely used Jenkins alternatives—including BuildMaster, Microtica, GitLab, CircleCI, Bamboo, TravisCI, Semaphore, Buddy, Drone.io, GoCD, TeamCity, Buildkite, and Zuul—highlighting their key features, project URLs, and typical use cases for modern CI/CD pipelines.
Learn how to configure a Jenkins single‑branch pipeline to accept a branch name as a parameter, enabling dynamic code checkout by setting up a String parameter, using ${BranchName} in the pipeline script, and handling potential Lightweight checkout errors.
This article explains the core concepts of microservices, outlines their key benefits such as rapid delivery and scalability, discusses the need for specialized testing strategies, and reviews popular load‑testing tools to ensure reliable performance in distributed systems.
The Shanghai DevOps Best‑Practice Salon gathered experts from banks and tech firms to share real‑world experiences on DevOps adoption, lean R&D efficiency, agile pipeline construction, and DevSecOps integration, offering actionable lessons for modern IT operations.
Microservices, as lightweight, independent, and loosely coupled services, offer flexibility, rapid delivery, and scalability, but their distributed nature introduces performance challenges that require distinct testing approaches—both system‑level and service‑level—using advanced load‑testing tools such as InfluxDB, JMeter, CloudWatch, and Grafana.
Serverless has evolved from pure FaaS to a comprehensive stack that combines functions, databases, storage and low‑code platforms, enabling developers to become full‑stack engineers, empowering non‑technical staff to build applications quickly, and fostering an integrated ecosystem with seamless WeChat and third‑party extensions.
This comprehensive article explains the microservices architectural style, contrasts it with monolithic (integrated) architecture, outlines the problems solved by microservices, details design principles, splitting strategies, patterns such as Strangler and Rehab, and provides a complete Java SpringBoot example with code snippets and deployment instructions.
Fast builds are crucial for developers and operations teams because they provide immediate feedback on code quality, reduce CI server load, enable quicker production patches or rollbacks, and overall improve productivity, with ideal build times under five minutes and best practices to achieve this.
Effective artifact management and comprehensive version control are essential for CI/CD pipelines, ensuring that all source code, build scripts, configuration files, test data, database schemas, and infrastructure definitions are tracked, auditable, and reproducible across any environment.
Chanjet transformed its monolithic SaaS platform for millions of small‑business customers by adopting a cloud‑native, container‑based micro‑service architecture, enabling elastic scaling, reduced operational costs, unified data services, automated DevOps pipelines, and comprehensive observability across front‑end, back‑end, and infrastructure layers.
This article examines real-world database deletion incidents, the associated legal consequences, and how DevOps culture and operational best‑practices can turn such mistakes into learning opportunities rather than career‑ending failures.
This article explains microservices architecture, contrasting it with monolithic systems, outlines the problems it solves, lists its advantages and disadvantages, provides a concrete service example with code, and discusses strategies, principles, and patterns for splitting and evolving microservices.
The article emphasizes that a well‑designed CI/CD pipeline should automate the entire build and deployment process into a single command or script, enabling new developers to produce deployable artifacts quickly, while warning against excessive manual steps that hinder efficiency.
This comprehensive guide walks you through Docker fundamentals, compares virtual machines to containers, explains core concepts, shows step‑by‑step installation, image building, container execution, and best practices, enabling you to containerize a Vue project and deploy it with Nginx effortlessly.
This article explains the origins of DevOps, its evolution from agile practices, and how containers and Kubernetes enable a seamless, automated pipeline—from code checkout and build to testing, code analysis, artifact storage, image creation, and staged deployment—illustrated with real‑world Jenkins pipelines and logs.
This article explains the DevOps lifecycle—its definition, advantages, and seven continuous phases (development, integration, testing, feedback, monitoring, deployment, and operations)—and shows how automation and collaboration between development and IT operations accelerate high‑quality software delivery.
Whale is an event‑driven automated operations platform that lets developers package atomic tasks, users compose workflows, and a rule‑matching engine trigger them in real time via an event center, employing a StackStorm‑based execution engine for fault‑tolerant, cross‑datacenter orchestration and future AI‑enhanced self‑healing.
The article explains how to design DevOps pipelines with quality thresholds that allow individual feature branches to be tested, scanned, and selectively deployed or rolled back, emphasizing short‑lived branches, trunk‑based development, and feature toggles to avoid the problems of long‑lived feature branches.
The article explains why artifacts should be built only once and treated as immutable, using containers as the ideal vehicle, and warns against the anti‑pattern of rebuilding from source code at each pipeline stage, which slows pipelines and creates inconsistent production releases.
At ServerlessDays China 2021, CTO Wang Xiaobo explained how his team’s shift to a serverless‑first platform—driven by the need for rapid idea rollout, reduced operational overhead, and faster code‑to‑production cycles—reveals both the strategic advantages of serverless for accelerating monetization and the trade‑offs and pitfalls, such as microservice sprawl and workflow complexity, that must be managed through unified DevOps and architectural evolution.
This comprehensive tutorial walks through Docker installation on CentOS 7, explains container fundamentals and differences from virtual machines, details image creation, repository management, container lifecycle commands, networking, data sharing, and demonstrates automated builds and orchestration using Maven and Docker Compose for a full Spring Cloud micro‑service stack.
The article explains how to keep CI/CD pipelines reliable by using a single, identical artifact—such as a package, binary, or Docker image—across all environments, recommends externalizing configuration at runtime, and warns against the common trap of mismatched artifacts that cause deployment failures.
The article explains why comprehensive artifact management and strict version control of all application‑related files—including source code, scripts, configurations, and database assets—are essential for reliable DevOps pipelines, and outlines practical guidelines and common anti‑patterns to avoid.
This article identifies the most common obstacles teams face when adopting test automation—such as choosing approaches, selecting tools, managing data, and timing tests—and offers actionable solutions to help organizations implement effective, sustainable automation pipelines.
This article explains heterogeneous Docker image builds, demonstrates how to name and reference multi‑stage build stages for clearer Dockerfiles, shows how to limit builds with the target flag for debugging, and illustrates copying files from existing images such as nginx to streamline container creation.
This tutorial introduces Ansible, outlines its main features, guides you through preparing a lab environment, configuring hosts and the master node, and demonstrates common modules and command options with clear code examples for effective automation.
This article explains the origins of DevOps, its evolution from agile practices, its deep integration with containers and Kubernetes, and demonstrates a complete CI/CD pipeline using tools like Jenkins, Gogs, Nexus, and SonarQube to achieve automated, end‑to‑end software delivery.
This article provides a comprehensive overview of microservice architecture, covering its definition, history, comparison with monolithic and SOA approaches, core characteristics, practical implementation steps, common design patterns, advantages, challenges, and the mindset shift required for successful adoption.
The article explains how ForgeRock’s engineering team improves developer efficiency and product delivery by using Google Cloud’s native DevOps suite—including Cloud Code, Tekton, Cloud Build, and Container Registry—to streamline IDE workflows, enable end‑to‑end automation, and adopt a multi‑cloud strategy across GKE, EKS, and AKS.
This article details Qunar’s transition to cloud‑native containerization, describing the platform architecture, the technical hurdles encountered—including custom KVM hooks, logging visibility, Java remote debugging, and multi‑cluster performance—and the practical solutions implemented to achieve a stable, scalable production environment.
This article reviews thirteen popular Jenkins alternatives, highlighting their key features, integration capabilities, and pricing, to help development teams choose a more efficient, scalable, and secure continuous integration solution for modern software delivery.
The article warns that while microservices promise independent, scalable development, they often add unnecessary complexity for small teams, leading to duplicated effort, coordination challenges, and potential performance drawbacks if not applied judiciously.
This article explains the purpose and use cases of Kubernetes Jobs and CronJobs, walks through creating job and cronjob manifests with custom Docker images, demonstrates parallel pod execution, random naming, key parameters, and provides practical kubectl commands for deployment, monitoring, and troubleshooting.
This newsletter aggregates recent technical insights covering DevOps continuous integration, React 18 enhancements, CSS size‑adjust for web fonts, micro‑frontend frameworks, cross‑platform reuse patterns, JavaScript exception handling, Node.js multiprocessing, React SSR advances, WebAssembly performance, and product design best practices.
This article compares fourteen popular Jenkins alternatives, detailing each tool's key features, strengths, and drawbacks, and provides project URLs so teams can choose a CI/CD solution that best fits their workflow and cost requirements.
This guide introduces Tekton, a cloud-native CI/CD framework, explains its benefits, components, installation steps, core concepts, and provides a complete example that defines tasks, pipelines, Docker image building, and execution on a Kubernetes cluster.
This article recounts a Tencent front‑end engineer’s QCon 2021 talk on upgrading to a serverless‑based full‑stack development model, covering business motivations, the SCF implementation process, migration to TKE, tooling, DevOps practices, cost optimization, and future technical directions.
This article explains how Docker volumes work, how to mount host directories into containers using the -v and --mount options, and demonstrates data persistence by creating a volume, inspecting its storage location, and verifying that files created inside the container appear on the host.
This article explores the complexity of IT operations, outlining common misconceptions, essential capabilities, organizational and individual pain points, and presents self‑help strategies such as SRE, DevOps, automation, and AIOps to achieve sustainable, scalable, and intelligent operations within enterprises.
The 2021 GOPS Global Operations Conference in Shenzhen showcased the latest enterprise DevOps empowerment plan, announced the 12th batch of continuous delivery assessment results, and featured an interview with China Mobile’s chief scientist Qian Ling, who shared the challenges, successes, and future roadmap of their DevOps transformation.
This article explains how DevOps and I&O leaders can overcome fear of chaos engineering by understanding its theoretical roots, addressing core reliability challenges, and adopting a structured, pre‑production "test‑first" approach with practical steps, tools, and community sharing to enhance system availability.
Lin Ying, a senior test manager at Guoxin Securities, shares insights from his GOPS 2021 talk on the securities industry's digital transformation, current IT challenges, and a comprehensive red‑blue exercise strategy that combines full‑link load testing, automated workflows, and proactive monitoring to ensure system stability during market peaks.
This article explains the fundamentals of version control, why it is essential for DevOps teams, and how it improves productivity, error detection, parallel development, and overall product reliability through better collaboration and traceability.
The article outlines how large‑scale projects can achieve reliable, fast releases by adopting DevOps continuous‑integration practices such as trunk‑based development, comprehensive automated testing, versioned artifact storage, configuration‑as‑code pipelines, Docker layer caching, and staged builds that prioritize short tasks and parallel execution to minimize manual effort and maintain quality.
This article compiles the 20 most common DevOps interview questions, providing detailed explanations of concepts such as the DevOps‑Agile distinction, core benefits, key tools, anti‑patterns, KPI metrics, automation advantages, containers, microservice frameworks, version control practices, Git revert techniques, post‑mortem meetings, asset vs configuration management, continuous testing elements, and essential development and infrastructure operations.
An in‑depth interview with Huawei Cloud MVP Liang Tongming reveals his journey from a childhood PC to leading .NET projects, offers practical advice on career growth, community involvement, and the value of combining technical depth with industry knowledge for modern developers.
At the 2021 GOPS Global Operations Conference in Shenzhen, Southern Power Grid’s Digital Grid Research Institute shared how its DevOps empowerment program is boosting software engineering, CI/CD pipelines, and digital transformation, illustrating the plan’s goals, achievements, and future expectations for the energy sector.
This article presents a comprehensive list of the 20 most common DevOps interview questions, covering fundamentals, tools, practices, KPIs, and troubleshooting techniques, and provides concise, expert answers to help candidates prepare effectively for DevOps roles.
The 2021 GOPS Global Operations Conference in Shenzhen showcased leading financial and tech firms sharing their enterprise DevOps empowerment experiences, revealing how dual‑mode IT architectures and collaborative platforms drive agile development, automation, and industry‑wide best practices.
This article introduces Jenkins shared libraries, explaining their structure, how to create a library with Groovy classes, configure it in Jenkins, and use it in pipelines, including sample code for colored log output and step-by-step setup instructions for DevOps practitioners.
The article outlines ten frequent DevOps pitfalls—from out‑of‑order delivery and role misunderstandings to neglecting security and team fatigue—and provides practical guidance on planning, automation, quality, and cultural practices to achieve successful continuous delivery.
This article explains the advantages of using Dockerfiles for image building, outlines key principles such as single responsibility, commenting, minimalism, proper base image selection, .dockerignore usage, cache optimization, and timezone configuration, and provides a practical example Dockerfile to improve build speed and image size.
In this interview, Alan Page shares expert advice on adopting a test‑first mindset, achieving high test automation, overcoming talent shortages and cultural resistance, and exploring AI/ML opportunities to enhance continuous testing practices within modern software development teams.
At the 16th GOPS Global Operations Conference, JKStack CTO Ge Dingjia detailed how the convergence of ITIL and DevOps, grounded in lean‑thinking value‑stream concepts, drives digital transformation by aligning IT operations with business value through workflow integration, value‑stream mapping, and continuous improvement.
The 2021 GOPS Global Operations Conference in Shenzhen showcased the Enterprise‑level DevOps Empowerment program, featuring interviews with First Capital Securities on their digital transformation, DevOps maturity journey, and the benefits of joining the collaborative initiative.
This article explains the DevOps lifecycle—covering planning, coding, building, testing, releasing, deploying, operating, monitoring, and CI/CD—and lists popular tools for each stage to help teams achieve continuous delivery and efficient collaboration.
The article reflects on Java's 25‑year dominance, its ecosystem strengths, and the mounting pressure from cloud‑native requirements for lightweight, fast‑starting, low‑resource services, arguing that Java must evolve or risk being displaced by newer languages like Go and Rust.
This comprehensive guide walks you through Docker fundamentals, from the underlying concepts of containers versus virtual machines to hands‑on installation, image creation, container deployment, and best practices, empowering developers to containerize and ship applications efficiently.
This article provides a detailed tutorial on Jenkins Pipeline environment variables, covering how to list, read, set, override, store boolean values, and capture shell command output within pipelines, complete with practical code examples and best‑practice tips.
This article presents a high‑availability Jenkins distributed architecture that leverages master‑slave deployment, label‑based node management, Kubernetes containerization, and LVS load‑balancing to address resource constraints, configuration complexity, and maintenance overhead in large‑scale CI pipelines.
This article details China Life Property & Casualty Insurance's agricultural insurance claims system achieving Level 3 DevOps continuous‑delivery assessment, shares insights from an interview with the R&D center head on motivations, implementation, metrics, challenges, and future plans, and explains the DevOps maturity model and pipeline architecture.
The article reports on Inner Mongolia Mobile's successful achievement of Level 3 in the national DevOps continuous delivery assessment, detailing the GOPS conference announcement, the ESOP project's architecture and improvements, interview insights from the IT manager, and the measurable benefits that positioned the company at a domestic leading level.
Anxin Securities’ CIO discusses how the company’s Internet Customer Service Platform passed the DevOps Standard Continuous Delivery Level 3 assessment, detailing the motivations, implementation challenges, measurable improvements, and future plans for scaling DevOps across its technology stacks.
Guoxin Securities’ Chief Engineer Liu Hanxi and IT Head Xue Zhongyi discuss how their Gold Sun information platform leveraged a self‑developed microservice framework and the national DevOps standard to achieve a Level‑3 continuous delivery assessment, dramatically improving delivery speed, test coverage, automation and overall digital transformation.
This step‑by‑step guide shows how to install the libmaxminddb library, compile NGINX with the ngx_http_geoip2 module, download the latest GeoLite2 database, configure geoip2 directives, and verify that foreign IP addresses are blocked with a 404 response.
This article provides a comprehensive overview of GitLab CI/CD, covering its core concepts—pipelines, stages, jobs, and runners—along with .gitlab-ci.yml configuration, variables, triggers, DAG pipelines, runner types, cloud‑native capabilities, efficiency management, and practical demo examples to help teams implement robust DevOps workflows.
Amid accelerating Agile and DevOps adoption, the rapid delivery of cloud‑native microservices introduces cascading risks and makes traditional monolithic testing inadequate, prompting a shift toward observability‑driven “right‑shift” testing, exploratory methods, and chaos engineering to embrace failure as the new normal.
This article introduces ten popular open‑source projects for monitoring, deployment, and reliability engineering, detailing each tool's purpose, key features, and how they help Site Reliability Engineers build scalable, highly reliable cloud‑native systems.
This article explains the main components of a Spring Cloud‑Nginx architecture, version compatibility between Spring Cloud and Spring Boot, essential middleware such as Eureka, Nacos, Zuul and Redis, environment preparation on CentOS, and the structure of the crazy‑springcloud scaffolding used for a high‑performance seckill demo.
This guide outlines a four‑layer backend stack—languages, components, processes, and systems—and provides detailed recommendations for project management, DNS, load balancing, CDN, RPC frameworks, service discovery, databases, NoSQL, messaging, code management, CI, logging, monitoring, configuration, deployment, jump servers, and machine management, helping startups design a robust, cloud‑native backend architecture.
This step‑by‑step guide shows how to install JDK 1.8, download the Jenkins RPM (from the official site or a Tsinghua mirror), install it, modify the config to run as root on port 8888, start the service, retrieve the initial admin password, and complete the Jenkins setup on a CentOS system.
The article lists twenty‑one harmful programming habits—such as reinventing wheels, overusing design patterns, skipping testing, ignoring monitoring, and avoiding proper architecture—that can cripple a development team and serve as a warning for engineers seeking better practices.
This article presents a comprehensive set of Docker and Kubernetes multiple‑choice questions, including single‑ and multiple‑answer formats, to help readers self‑evaluate their containerization knowledge and identify areas for further study in the field.
This article explains how to invoke another Groovy script and all Groovy scripts in a directory from a build.groovy file, providing clear example code that demonstrates defining a method in one script and calling it from another within a DevOps automation context.
This guide explains why a Jenkins agent fails to start with the error "provided port: 8182 is not reachable" and provides step‑by‑step troubleshooting methods such as network testing, Docker port mapping verification, and ensuring proper communication between the agent and master nodes.
This article demystifies Kubernetes by explaining its core scheduling function, the role of Pods, YAML configuration, probes, high‑availability constructs like ReplicaSet and Deployment, internal components, resource limits, and practical cluster‑setup tools, providing a comprehensive guide for newcomers and practitioners alike.
This guide compares Git flow, GitHub flow, and GitLab flow, then presents a practical GitLab‑flow‑based workflow with step‑by‑step branching, merge‑request, release, semantic versioning, and bug‑fix procedures for development teams seeking a simpler, scalable version‑control process.
The article explains that DevOps should be viewed as an interdisciplinary interface rather than a specific job title, contrasts it with traditional roles like software developer or system administrator, and illustrates the concept with a Java‑style code example, while also including a brief promotional note about a DevOps training course.
This article explains how DevOps transforms software testing by moving from isolated, waterfall‑style testing to continuous, automated, shift‑left practices, and outlines best‑practice recommendations such as test automation, tool selection, metrics, documentation, and the role of test‑automation engineers.
This article explains what Kubernetes Jobs and CronJobs are, outlines common use cases, and provides detailed, code‑rich instructions for creating, configuring, and managing them—including parallel execution, random naming, and key parameters—so you can automate batch and ad‑hoc tasks in a cloud‑native environment.
This article outlines a comprehensive backend technology stack for startup companies, detailing language choices, essential components, processes, system tools, and best‑practice recommendations across areas such as project management, DNS, load balancing, databases, messaging, CI/CD, monitoring, and deployment.
