This guide explains how to install and configure the open‑source Mattermost messaging platform on a Kubernetes cluster using Helm, covering repository setup, chart selection, namespace creation, persistent volumes, external PostgreSQL integration, custom values.yaml adjustments, ingress configuration, and troubleshooting steps.
This article explains the core DevOps philosophy—including Lean, Agile, CI, CD and Continuous Delivery—describes its five‑point framework of culture, automation, lean‑agile core, measurement and sharing, and details a three‑step implementation method of fast flow, fast feedback, and continuous learning with practical practices and examples.
The article explains Kubernetes' rapid rise by detailing its history, YAML‑based declarative infrastructure, GitOps workflow, scalability features, security policies, cloud‑provider integration, extensibility through CRDs and Operators, and the vibrant community that drives continuous innovation.
This article walks through a practical, step‑by‑step transformation from a monolithic application to a cloud‑native, micro‑service architecture, covering planning, domain‑driven design, continuous integration, service registration, API gateways, databases, caching, logging, configuration management, containerization, performance monitoring, service governance, GitOps, traffic shading, service mesh, stress testing, and multi‑datacenter deployment.
This guide explains how to set up Mattermost and integrate it with GitLab to enable ChatOps, covering concepts like NoOps, the DevOps lifecycle, detailed installation steps for Mattermost, MySQL, Nginx proxy configuration, webhook creation, slash command setup, and testing procedures.
This article traces the origins of DevOps from Patrick Debois' early experiences, explains its evolution alongside agile and waterfall models, defines its core principles, and explores how microservices, containerization, and cloud computing enable its fast, reliable, and collaborative software delivery approach.
This guide explains how to install Mattermost on CentOS, configure a MySQL database and Nginx proxy, and integrate it with Jenkins using the Mattermost Jenkins plugin and pipeline scripts to enable ChatOps‑style notifications throughout the CI/CD workflow.
This guide explains how to organize GitLab CI/CD job templates, define global variables, configure build, test, code analysis, artifact, and deployment stages, and integrate Kubernetes deployment and Docker image creation for Java applications, providing complete YAML examples and usage instructions.
This guide walks through installing Jenkins Blue Ocean via Docker, setting up the Jenkins home directory, launching the server, and creating pipelines using both the classic Jenkins UI with a declarative Jenkinsfile and the visual Blue Ocean plugin, covering configuration, triggers, stages, and artifact handling.
This article compiles essential DevOps interview questions covering version control differences between Git and SVN, MySQL master‑slave replication mechanics, Kafka versus traditional MQ, Kubernetes service types, pod communication, health checks, resource limits, link types, and permanent mounting techniques.
This article provides a step‑by‑step guide on installing Jenkins Blue Ocean via Docker, creating pipelines using both the classic UI and the Blue Ocean visual plugin, and configuring pipeline stages, triggers, and environment variables with example Groovy scripts.
The article presents Ctrip's platform-driven API automated testing solution, detailing the challenges of traditional script-based testing, the proposed lightweight online test authoring and execution system, its key implementation features, technical architecture using Vue, Java, and MongoDB, and the resulting efficiency gains for development teams.
The article outlines five major DevOps trends for 2020—including AI‑driven automation, the rise of Golang, serverless architecture, cloud‑native practices, and the growing focus on DevSecOps—explaining how each will reshape software delivery and operational efficiency.
This guide explains how to register a Docker‑based GitLab Runner, view its configuration, and use image, services, environment, and inheritance settings in .gitlab-ci.yml files, as well as how to organize reusable pipeline templates for efficient DevOps workflows.
This article provides a comprehensive introduction to Docker, covering its foundation on Linux Containers, the differences between Docker and LXC, the internal architecture and key components, and step‑by‑step commands for installing, managing images, running containers, and inspecting logs.
To accelerate CI/CD pipelines, the article recommends using self‑hosted GitLab Runners on a private cloud for faster network access, caching build dependencies, employing lightweight Alpine images for jobs, and limiting job execution to changed files via the only:changes rule.
This guide walks through setting up a complete CI/CD pipeline for a SpringBoot micro‑services project using Jenkins, Docker, Harbor, GitLab, and Python scripts to build, package, and deploy containers onto a Kubernetes cluster, covering environment installation, configuration, and testing steps.
This guide provides a comprehensive overview of the kubectl command‑line tool, covering its syntax, core components, common commands, output formatting options, custom columns, server‑side printing, sorting, and practical examples for everyday Kubernetes cluster operations.
During the pandemic’s “停课不停学” surge, Tencent Classroom tackled a 120‑fold traffic jump by rapidly deploying Grafana dashboards, Kibana logs, internal Moniter and cloud monitoring tools, establishing a three‑layer feedback‑alert‑on‑call model, and now plans automation, unified visualizations, and chaos‑engineering to further boost observability and service reliability.
This article evaluates six popular container CI/CD pipelines—Heroku, Azure DevOps, GitLab CI/CD, AWS Elastic Beanstalk, Google Cloud Build, and Jenkins X—detailing their configurations, advantages, limitations, pricing, and personal assessments to help teams choose the most suitable solution for their workflow.
This presentation walks through a step‑by‑step approach that blends real‑world business needs, design patterns, and Jenkins features to demonstrate how a shared‑library‑based pipeline engine can support large‑scale, complex CI/CD scenarios, from native solutions to structured atomic units and dynamic execution refactoring.
This guide explains how to configure GitLab CI artifacts—including specifying paths, exposing artifacts in merge requests, customizing artifact names, controlling upload conditions, setting expiration times, and collecting test reports—while providing practical code examples and important usage notes.
In this interview, DevOps veteran Shi Xuefeng shares how tiny decisions shaped his career, outlines the "Spinach Principle" and "Three‑Heart Rule," and explains why systematic engineering efficiency and DevOps adoption are critical for modern enterprises.
This article explains GitLab CI cache configuration, including cache paths, keys, policies, and examples of global and job-specific caching, demonstrates pipeline execution and runner cache behavior, and provides best‑practice conclusions for effective CI/CD caching.
This guide explains what an Ansible playbook is, its YAML syntax, how to run tasks on multiple hosts, limit execution with --limit, use inventory files, define variables via extra‑vars, vars, vars_files, host_vars and group_vars, work with facts, register results, apply when conditions, delegate tasks, pause execution, prompt for input, tag tasks, and structure plays with blocks, rescue and always sections.
This guide walks front‑end developers through the major traps when adopting Alibaba’s Midway FaaS serverless framework—covering platform selection, CLI usage, code structure, local debugging, deployment configuration, and cost‑saving tips—so you can launch cloud‑native applications quickly without costly mistakes.
This article introduces Didi's open‑source monitoring system Nightingale, detailing its design, architecture, key improvements over Open‑Falcon, and how its flexible alerting and data handling capabilities support the full lifecycle of stability engineering in large‑scale operations.
This article presents PICC Insurance's digital strategy that leverages a DevOps model to support micro‑service architecture migration, detailing the company's unique DevOps standardization, end‑to‑end processes, quality safeguards, deployment solutions, and efficiency analysis as shared at the GNSEC 2020 summit.
In this interview, DevOps veteran Dong Yue shares his journey from a curious Tsinghua student to a leading architect at Alibaba, his influential books on configuration management, the creation of China’s first DevOps maturity model, and practical advice for young engineers seeking purpose and impact.
This article provides a comprehensive overview of Kubernetes, explaining its core concepts, advantages, key features, typical use cases, and the new capabilities introduced in version 1.18, while also linking to related tutorials and practical deployment guides for building scalable, resilient cloud‑native applications.
This interview chronicles Dong Yue’s path from a curious Tsinghua student to a DevOps leader at Alibaba, highlighting his early fascination with software engineering, influential books, the creation of the Aone platform, the national DevOps maturity model, and practical advice for aspiring technologists.
This article outlines what middleware development entails, the essential technical and professional qualities required, various types of middleware, and a step‑by‑step learning roadmap for Java developers aiming to break into middleware engineering.
This article analyzes the ten‑day, large‑scale construction of Huoshenshan and Leishenshan hospitals from a DevOps perspective, detailing the "small team‑big backend" organization, parallel value streams, modular building techniques, cloud‑native analogies, waterfall versus agile models, quality‑in‑built practices, and the operational challenges faced by the medical teams.
This article explains why functional test automation is essential for modern agile and DevOps teams, outlines how to calculate its return on investment, and provides a detailed roadmap of testing strategies, team composition, and maintenance practices to reduce costs and improve software quality.
This guide shows how to locate every .git directory within a few levels, trim the paths, and run git pull on each repository using a single pipeline command that can also be saved as a convenient shell alias.
This tutorial explains how to install GitLab Runner on various platforms, register different runner types, retrieve tokens, and use common commands for managing the runner and executing CI/CD pipelines, providing code examples for Docker, CentOS, macOS, and interactive or non‑interactive registration.
This article explains the drawbacks of the traditional software release process, introduces continuous integration, delivery, and deployment concepts, compares GitLab CI/CD with Jenkins, and outlines the architecture, configuration files, and advantages of using GitLab’s built‑in CI/CD platform.
This guide explains how to periodically synchronize Bitbucket master branches to GitHub repositories using a Jenkins pipeline, detailing branch policies, a simplified workflow for feature and bugfix branches, and a reusable Jenkinsfile that leverages parameterized builds to control repository syncing.
This guide explains how to configure a modest‑spec laptop (e.g., 8 GB RAM) for Spring Cloud microservice development, optimize IDE memory settings, offload services to an Alibaba Cloud ECS instance, and establish seamless networking and service discovery using ZeroTier, including optional Moon satellite deployment.
This guide explains what Consul is, walks through setting up a three‑node Consul cluster, registers services via the HTTP API, and configures Prometheus to discover those services using Consul, including detailed command examples and YAML configuration.
During the CCSA TC1 WG5’s first 2020 meeting, officials approved the DevOps security and risk management maturity model, introduced 36 new cloud‑computing standards covering performance testing, platform security, industry‑specific solutions, and set the agenda for further standardization efforts across cloud services.
This article provides a comprehensive introduction to Docker, covering its origin, core concepts, application scenarios, differences from physical machines and virtual machines, installation steps, essential commands, container lifecycle management, Dockerfile creation, image customization, registry publishing, and a practical Flask example.
This tutorial explains how to install GitLab Runner on various platforms, register it in different modes, and use common commands to manage CI/CD pipelines for continuous integration, including Docker-based setups and example pipeline configurations.
Prometheus, a CNCF‑graduated, cloud‑native monitoring system, combines pull‑based target discovery, a label‑rich time‑series data model, and four core metric types—gauge, counter, histogram, and summary—to provide near‑real‑time visibility, short‑term retention, alerting via AlertManager, and integration with Grafana and remote storage for scalable observability.
This article explains how Alibaba's search, recommendation, and advertising platforms handle the unique quality challenges of big‑data AI applications, detailing six major testing problems and the comprehensive strategies—including functional, real‑time, performance, and stability testing—used to ensure reliable online services.
This article explains the shortcomings of the traditional software release process, introduces continuous integration, delivery, and deployment concepts, compares GitLab CI and Jenkins features, and outlines the advantages, architecture, and practical usage of CI/CD pipelines for DevOps teams.
This article explains how to use infrastructure‑as‑code techniques on Kubernetes to automate the deployment and CI/CD pipelines of .NET Core microservices, detailing the role of k8s.yaml files, Jenkinsfiles, and related automation tools.
This article recounts the journey of a Chinese fund company's infrastructure team as they transformed low‑efficiency manual operations into a standardized, automated DevOps workflow, detailing the challenges, decisions between self‑development and partnership, and future plans for security, CMDB, and PaaS evolution.
This guide explains GitLab CI/CD fundamentals, including continuous integration, delivery, deployment, .gitlab-ci.yml configuration, runner setup, pipeline stages, Auto DevOps, and Kubernetes deployment, with practical code examples and visual walkthroughs for automating software delivery.
The article analyses the 2020 Chinese DevOps survey, highlighting the current maturity of agile management, continuous delivery, technical operations, application design, and security, while sharing practical experiences, tool choices, and common challenges faced by enterprises during DevOps transformation.
This guide walks you through installing Elastic Workplace Search and Elastic Enterprise Search on a CentOS 8 VM using Vagrant, configuring data sources such as GitHub and Atlassian products, setting up user groups and weights, and verifying search results, all within a day.
This article explains the fundamentals of microservice architecture, contrasts it with traditional three‑layer monolithic designs, outlines its characteristics, benefits, drawbacks, and implementation challenges, and compares it to SOA, providing a comprehensive overview for developers and architects.
This article details the evolution of an online development platform—from early WebIDE experiments and code‑server integration to a cloud‑native architecture with client, server, and container pool components—highlighting challenges in resource scheduling, high availability, startup speed, and plugin ecosystems, and sharing practical solutions and scenario deployments.
Learn how to quickly diagnose and resolve common Kubernetes pod failures—such as ImagePullBackOff, CrashLoopBackOff, and resource issues—by using kubectl commands to inspect pod status, events, logs, and execute shells, with practical examples and step‑by‑step troubleshooting techniques.
This article describes how Fiberhome Communications built an end‑to‑end test management platform on Jira Software and the Atlassian suite, detailing the business pain points, core testing requirements, a custom solution architecture, and the resulting efficiency and cost‑saving benefits.
This article details how CTrip's flight app transitioned to React Native and adopted BDD-driven CI/CD, introducing parallel linting, unit testing, automated publishing, a mock data platform, distributed UI automation, and multi‑process frameworks to achieve 95% test coverage, minute‑level execution times, and significantly reduced release costs.
This comprehensive guide introduces Ansible's core concepts, architecture, and key features, then walks through installation, inventory configuration, command usage, module options, playbook creation, handlers, and role-based organization, providing practical examples and code snippets for effective automation across Linux and mixed environments.
This article provides a comprehensive overview of Kubernetes, covering its definition, advantages, core features, typical use cases, architectural layout, essential control‑plane and node components, as well as common add‑on tools for monitoring and networking.
This article discusses common challenges encountered when using SonarQube at scale—including data instability across branches, rule configuration for new projects, and project permission management—and presents practical solutions such as branch-specific project naming, Jenkins-driven API automation, and recommendations for purchasing commercial editions.
This article explores the evolving role of IT operations, defining its core value, comparing traditional closed‑source and open‑source architectures, analyzing the shift toward automation, DevOps, cloud‑native and digitalization trends, and outlining essential skills and management practices for today’s ops professionals.
The Zhengda Hospital HIS database outage, caused by unauthorized scripts and poor permission controls, sparked a detailed discussion on how to prevent reckless production testing, enforce proper authorization, design efficient yet secure workflows, improve outsourcing oversight, and build robust emergency and compliance practices.
This article explains the concepts of Definition of Ready (DoR) and Definition of Done (DoD), their importance in Scrum and DevOps, criteria for ready and done backlog items, practical examples, and how to display them on the team board to ensure consistent delivery standards.
This article provides a comprehensive overview of DevOps concepts, including definitions of CI, CD, continuous deployment, version control, tooling, implementation steps, benefits, and distinctions from Agile and Lean IT, offering guidance for effective adoption and interview preparation.
This article summarizes a DevOps best‑practice talk, explaining how the VUCA environment and hidden "gray rhino" risks demand five critical success factors—goal alignment, people & culture, process, platform, and technology—and offers practical steps for enterprises to start and mature their DevOps journey.
In this interview, senior DBA Ge Haoqiang from Tiancheng Financial discusses the scale of their database clusters, the efficiency gains from automation, DevOps culture, language choices, and how they adapt to new database features, offering insights into modern database operations automation.
This guide presents practical Bash scripting techniques—including strict mode, file locking, graceful termination, timeout handling, and pipeline debugging—to help developers write more robust, maintainable, and error‑resilient shell scripts for automation and system tasks.
This article details how to replace VM‑based Jenkins slaves with dynamically provisioned Kubernetes pods, covering architecture design, Jenkins master configuration, pod template YAML, custom Docker images, pipeline scripts, and performance tuning to improve resource utilization and scaling.
This roundup covers Tencent Cloud's first domestic serverless PostgreSQL database, GitHub's free core features for all users, the nginx 1.17.10 release with a new auth_delay directive, a COBOL programmer's urgent call, and upcoming Linux dual‑boot on iPhone, among other tech headlines.
This article explains the evolution from manual deployment to container orchestration, compares Docker Compose, Mesos, and Kubernetes, outlines DevOps principles, and provides a detailed overview of Kubernetes origins, features, architecture, and core components.
This article explains why and how to replace Jenkins Freestyle projects with Pipeline jobs, covering the limitations of Freestyle, the benefits of Pipeline, and providing a complete scripted example that automates code checkout, building, testing, reporting, and email notification.
This article explains how value‑stream architects act as influencers, consultants, optimizers, and architects who visualize, influence, design, and train around software delivery pipelines, enabling organizations to accelerate business value flow and achieve continuous improvement in large‑scale DevOps environments.
This article compiles a series of frequent Jenkins pipeline problems—such as Git parameter handling, credential plaintext usage, Sonar scanning, JSON parsing, HTTP request handling, and build termination—and provides practical solutions, code snippets, and tips to help developers avoid pitfalls and streamline their CI/CD workflows.
This article examines Facebook's large‑scale configuration management system, detailing Configerator and Gatekeeper performance metrics, latency breakdowns, real‑world configuration error incidents, statistical analysis of failures, and the DevOps practices that keep the system reliable and scalable.
The article explains that to improve software delivery you must first agree on what actually flows through the value stream, evaluates existing metrics, introduces four mutually exclusive flow work‑item categories—including features, security/compliance, and technical debt—and shows how this lean, business‑centric view helps identify bottlenecks and drive productivity.
This article compiles a series of real-world Jenkins pipeline problems—ranging from Git parameter handling and credential usage to Sonar scanning, JSON parsing, and pipeline control—offering concise solutions and code snippets to help DevOps engineers avoid common pitfalls and streamline their CI/CD workflows.
Experienced developers can often identify performance bottlenecks simply by reviewing code implementations, configuration settings such as timeouts, intervals, database and Redis parameters, as well as service monitoring data, container and JVM configurations, allowing them to avoid unnecessary test scripts and code changes.
This tutorial introduces GitLab CI/CD, explains its core concepts, reasons to choose it, outlines typical pipeline stages and jobs, and provides a complete example .gitlab-ci.yml configuration with code snippets for building, testing, and deploying a Node.js application.
The article argues that software development should adopt physical product delivery principles such as lean production, value‑stream organization, and customer‑centric metrics, illustrating the growing complexity of software in products like cars and urging organizations to treat software as a continuous product flow rather than a time‑boxed project.
This article outlines the critical backend components required for building robust Java services, covering API gateways, MVC/IOC/ORM frameworks, caching, databases, search engines, message queues, file storage, unified authentication, configuration, service governance, scheduling, logging, data pipelines, and monitoring strategies.
Even with thorough testing environments, bugs often surface in production due to missing continuous monitoring, rushed last‑minute releases, inadequate compatibility checks, data inconsistencies, outdated QA practices, lack of shared goals, and microservice deployment challenges, highlighting the need for robust, production‑mirroring QA processes.
The article examines Spotify’s scaled agile model, detailing its organizational units—Squads, Tribes, Chapters, and Guilds—along with their characteristics, governance, dependency management, and comparison to other large‑scale agile frameworks such as SAFe, LeSS, and Scrum@Scale.
The article explains how traditional IT silos hinder rapid incident response, outlines common symptoms of poorly managed applications, and argues that adopting DevOps—supported by cloud‑native infrastructure, automation, and shared responsibility—delivers higher transparency, employee autonomy, operational quality, and customer satisfaction.
This article details Alibaba Entertainment's front‑end engineering challenges and presents a comprehensive solution that consolidates tools, introduces Hub CLI and Hub Service, defines a unified lifecycle, automates releases, enforces quality gates, and enables domain‑specific extensions to achieve scalable, maintainable front‑end development.
This guide explains why Gogs is a lightweight alternative to GitLab, outlines its key features, details the required environment, and provides step‑by‑step Linux commands for installing, configuring, and running the self‑hosted Git server, including troubleshooting tips and post‑installation notes.
The article explores the current state of Serverless, comparing its hype to teenage sex, examines why many talk about it without practical implementation, outlines its vision of abstracting servers, discusses gaps in programming models and cloud native tooling, and identifies the real needs for stability, security, and cost‑effective resource management.
This guide compiles the most frequently used Git commands, explaining their purpose, common options, and practical scenarios such as logging, branching, committing, rebasing, merging, stashing, and reverting, to help developers work efficiently with version control in real-world projects.
The article explains how designing autonomous, end‑to‑end responsible teams—by minimizing inter‑team collaboration, adopting full‑process or cross‑functional squads, and leveraging automation tools—leads to better software architecture, aligns with Conway’s law, and improves efficiency in modern DevOps environments.
This article provides a complete, step‑by‑step tutorial for uninstalling old Docker versions, configuring the APT repository, installing Docker Engine on Ubuntu, verifying the installation, enabling automatic start on boot, and setting up image acceleration.
This article explains how Skyscanner integrated the Sonar Secrets plugin into their CI/CD pipeline to automatically detect hard‑coded secrets such as passwords, API tokens, and AWS credentials, covering setup, build commands, installation steps, and enabling the rules in SonarQube quality profiles.
This article provides a comprehensive step‑by‑step guide for installing, configuring, and performance‑tuning the Rainbond (formerly CloudHelp) Kubernetes‑based platform, covering prerequisites, FAQ, installation commands, node addition, kernel and system parameter adjustments, and post‑installation verification.
This article presents a comprehensive DevOps case study of Bilibili, covering its cultural background, community ecosystem, user‑centric demand management, migration to high‑performance microservices, and the implementation of logging, monitoring, and real‑time data platforms to support rapid, reliable delivery.
This article introduces Portainer.io, a lightweight graphical interface for Docker that simplifies container monitoring, image handling, and stack creation, providing step‑by‑step installation commands, feature highlights, and practical usage tips for cloud‑native developers.
This article provides a comprehensive overview of Jenkins' architecture, detailing the master and slave nodes, web interface, jobs, plugins, security, credentials, cloud agents, global settings, logging, configuration storage, connection methods, and best practices for backup and deployment.
This article demonstrates how to install the Jenkins File Operations plugin, generate its DSL configuration, run a pipeline that creates a file, lists directory contents, and includes a sample pipeline script with logs and screenshots illustrating each step.
This article outlines why DevOps is a hot career path, answers common questions about tools and practices, presents a 2020 DevOps roadmap, recommends key books such as The Phoenix Project and Continuous Delivery, and suggests free and paid courses—including Jenkins pipelines and CI/CD—to help beginners become competent DevOps engineers.
QAOps integrates continuous testing from DevOps into the software development lifecycle, combining automated testing, parallel execution, and scalable reporting to improve collaboration between QA engineers, developers, and operations teams while accelerating and stabilizing software releases.
This article describes how to build a CI/CD pipeline using TFS for source control and Jenkins for automation on a Red Hat OpenShift‑based PaaS, covering code management, automated builds, testing, container image creation, deployment, and the necessary Jenkins and TFS configurations.
This article provides a comprehensive, step‑by‑step tutorial for installing and configuring the Yapi API management platform on a CentOS 7.6 server, covering system prerequisites, Node.js and MongoDB setup, environment configuration, deployment commands, and common error troubleshooting.
The article examines the critical challenges of operational security in internet companies, proposes a “nuclear button” permission‑minimization framework, and outlines practical automation solutions such as bastion hosts, Ansible task control, and backup management to balance safety, cost, and efficiency.
The article reviews the State of DevOps Report series (2014‑2019), highlighting rising industry performance, the critical role of fast and secure software delivery, community building, cloud adoption, work‑life balance, and the shift toward automation and personal effectiveness as key drivers of high‑performing DevOps organizations.
