This guide walks through installing SaltStack components (salt‑master, salt‑minion, and salt‑api) on CentOS, configuring them, testing the API, and then integrating SaltStack with Jenkins by creating Jenkinsfiles that invoke Salt commands via the API or direct CLI for automated deployments.
This comprehensive guide walks you through installing Ansible, configuring its core files, defining inventories, using key‑based SSH, executing basic commands, exploring common modules, writing playbooks, mastering YAML syntax, handling variables, conditions, loops, handlers, roles, and tags for efficient automation.
This article provides a comprehensive introduction to ZooKeeper, covering its definition, ZNode hierarchy, listener mechanisms, and practical applications such as unified configuration management, naming services, distributed locks, and cluster state monitoring, illustrating how these features enable robust coordination in distributed systems.
This article provides an in‑depth overview of Puppet, covering its background, C/S architecture, workflow, step‑by‑step installation for master, CA, and agent nodes, configuration file details, and practical examples of package and file resources for large‑scale server automation.
This article introduces Puppet, an open‑source configuration‑management framework, explains its architecture and workflow, and provides step‑by‑step instructions for installing and configuring master, CA, and agent nodes, along with a detailed overview of the puppet.conf settings and common resource types for large‑scale server automation.
This article details a bank’s practical experience designing and implementing a hierarchical CMDB, covering architecture, data standards, lifecycle management, accuracy controls, query visualization, performance tuning, and real‑world use cases for daily operations and private‑cloud management.
Zookeeper, originally a side‑project of Hadoop, is a Yahoo‑developed distributed coordination framework that provides high‑availability services such as configuration management, distributed locks, and failure handling, and has become a foundational component for many big‑data systems like Hadoop, Kafka, and Dubbo.
This article explains how Huya leveraged Nacos for DNS-F, unified service registration, CMDB integration, and dynamic configuration to improve live‑streaming stability, reduce latency, and enable flexible traffic steering across multiple data centers.
This article introduces Spring Cloud as a Spring Boot‑based microservice framework, explains the fundamentals of service architecture through a relatable story, details essential components such as service registry, load‑balanced calls, circuit breakers, gateways, configuration management, and provides concrete Java code examples for each part.
This talk shares how a Shanghai‑based exchange adopted Ansible for configuration management, detailing the architecture, learning path, Linux and Windows project practices, migration from legacy tools, and the benefits of standardization and automation for modern operations.
Spring Cloud is a comprehensive suite built on Spring Boot that simplifies microservice development by providing tools for configuration management, service discovery, circuit breaking, routing, and more, and this article outlines its main modules, architecture diagram, and a typical request processing flow.
This article explains how to monitor the Puppet configuration management system, covering its request‑response‑execution‑report workflow, key monitoring metrics, black‑box and white‑box monitoring approaches, common issues, and practical solutions for ensuring large‑scale cluster consistency.
Centralized configuration becomes essential as applications grow in complexity, prompting a detailed comparison of open‑source config centers—Spring Cloud Config, Ctrip Apollo, and Disconf—highlighting features, compatibility, usability, and ultimately recommending Apollo as the optimal solution for SpringBoot‑based microservices.
This article explains why a configuration center is essential for modern micro‑service architectures, describes the typical architecture and governance capabilities of Apollo, details its high‑availability and real‑time mechanisms, and showcases practical use cases such as feature switches, service governance, dynamic logging, routing, and data‑source management.
This article traces the evolution of Alibaba’s internal microservice configuration center—from a group‑wide tool to a commercial cloud product and finally an open‑source project—detailing design decisions such as centralized control, dynamic push, namespace isolation, release governance, capacity limits, and console UX improvements.
This talk explains how China Aviation Information applies practical AIOps techniques—such as automated configuration management, cluster analysis, fault prediction, anomaly detection, and event compression—to achieve near‑zero downtime in a complex, legacy‑heavy ticketing and travel system.
UCloud’s physical network orchestrator automates large‑scale data‑center switch configuration, reducing IDC network build cycles from 2‑3 days to 2‑3 hours, boosting success rates to 99%, while handling 3000+ switches, 200 Gbps access throughput, and supporting hybrid‑cloud real‑time connectivity through a scenario‑driven, Kafka‑backed architecture.
This tutorial walks through Puppet's architecture, workflow, and detailed installation of a puppetmaster and puppet agents on Linux, covering SSL security, manifest creation, module development, and a practical SSH port‑remapping case study.
This article explains why a robust Configuration Management Database (CMDB) is crucial for unified IT operations, outlines how to design and build an application‑centric CMDB model and platform, and details a five‑step implementation process to bring CMDB into production effectively.
This article explains what a CMDB is, outlines the design goals, core principles, and key functionalities of Car Home's asset management and process control platforms, and shares practical lessons and best‑practice recommendations drawn from two years of implementation experience.
The article explains what a Configuration Management Database (CMDB) is, how it stores and discovers IT infrastructure details, its critical relationship with the ITIL framework, the five ITIL lifecycle stages, and the practical benefits and vendor solutions that support effective IT service management.
This article presents the CEO of Youwei Technology’s insights on why conventional CMDB implementations often fail and outlines a four‑step methodology—new IT management needs, model construction, platform building, and adoption guarantees—to create a real‑time, application‑oriented CMDB that drives effective DevOps operations.
This article compares popular automation‑ops tools—Puppet, Ansible, and Foreman—offering practical guidance on when to use each, how to leverage Ansible’s strengths, and how to work with Puppet’s fact mechanism for dynamic configuration and data collection.
This article explains the shortcomings of traditional configuration files, describes why distributed configuration centers are essential for dynamic, multi‑environment microservice deployments, outlines their evolution, presents a simple design with caching and consistency improvements, and reviews popular open‑source solutions.
This extensive tutorial walks you through Ansible fundamentals, installation, architecture, key modules, and advanced features such as playbooks, variables, templates, roles, handlers, tags, loops, and conditional execution, providing step‑by‑step examples that demonstrate how to automate configuration, deployment, and management across multiple Linux hosts.
This article analyzes the common reasons CMDB initiatives collapse, shares Huawei's three‑phase journey from inception to value creation, and distills practical lessons on data consumption, accuracy, automation, visualization, and organizational execution for successful configuration management.
This report details a joint initiative by the Application Development Department and the PMO to improve software delivery efficiency through a full‑process continuous delivery methodology, a Git‑based configuration‑management model, and end‑to‑end pipelines applied to the multi‑scenario C3 project group, including results, advantages, training, and future plans.
Vipshop’s DevOps journey details the challenges of fragmented tooling and siloed operations, then outlines a comprehensive standardization roadmap—including component design, configuration libraries, monitoring overhaul, and change management—culminating in an integrated ecosystem that boosts quality, efficiency, and cost control across the organization.
This article describes how a testing team replaced manual SQL updates with an automated solution using Alibaba's open‑source DataX framework and a custom QDataManager system to synchronize baseline database tables across multiple test environments, improving efficiency and reliability.
This article explains how setting low timeouts for non‑core services, decoupling and physically isolating micro‑services, separating light and heavy workloads, and implementing automated configuration checks together enhance system reliability and reduce both technical and human errors in high‑traffic environments.
This article explains why manual VM provisioning and application deployment are bottlenecks, and shows how combining Infrastructure as Code tools like Terraform with configuration‑management solutions such as Chef can create a fully automated, version‑controlled pipeline that speeds up continuous integration, delivery and deployment across development, test and production environments.
This article explains how to replace manual VM provisioning and application deployment with Infrastructure as Code using Terraform, Chef, and related automation tools, detailing the problems of hand‑crafted processes, layered system management, cookbook design, CI pipelines, and best‑practice deployment workflows.
This article explains how to store configuration files in a remote GitHub repository and fetch them via GitHub's REST API v3, covering both public and private repositories, authentication methods, and the steps to create and use a Personal Access Token for secure access.
This article explains how the open‑source automation tool SaltStack can be deployed in a large‑scale cloud environment to centralize management, distribute files, collect server data, and streamline configuration, thereby reducing operational effort and improving efficiency for administrators.
This guide walks beginners through the fundamental components of microservice infrastructure—configuration management, service registry, API gateway, authentication, message broker, BFF, circuit breaker, and load balancing—explaining their roles, interactions, and practical considerations for building resilient systems.
This article compares popular automation tools, introduces SaltStack’s architecture and features, walks through its installation, configuration, authentication, command usage, targeting methods, common modules, and explains grains, pillars, and state files for effective large‑scale Linux operations.
This article provides a comprehensive overview of ZooKeeper, covering its purpose, design goals, architecture, key features, data flow, components, and common application scenarios such as service naming, configuration management, cluster coordination, distributed locks, and queues.
This guide walks you through Ansible's core architecture, host inventory setup, variable definitions, and the most commonly used modules—including group, user, copy, cron, shell, and ping—showing practical command examples and how to retrieve module help with ansible‑doc.
Tencent builds a complete DevOps pipeline using four platforms—TAPD, TGit, CIS, and ZhiYun—explaining the eight principles of continuous delivery, the four stages of operability, a three‑layer architecture, and showcasing ZhiYun’s configuration, automation, and self‑healing practices to deliver a systematic operations solution for enterprises.
This article reviews Ctrip's two‑year architecture transformation, describing the limitations of the legacy Croller release system, the design of a new group‑based configuration model, the introduction of seven‑layer load balancing and the TARS deployment platform, and detailing the implementation of a unified configuration management system (CMS) to improve operational efficiency and reliability.
The article describes how a small development team adopts a three‑week periodic release cadence, improves demand management, resolves operational concerns, and standardizes configuration, environment, deployment, and testing processes to achieve continuous delivery with higher quality and lower coordination cost.
Spring Cloud is a toolbox built on Spring Boot that provides a suite of tools for developing distributed systems, offering features such as configuration management, service discovery, routing, load balancing, circuit breaking, global locks, cluster state management, and a variety of sub‑projects like Config, Netflix, Bus, Consul, Security, Sleuth, Data Flow, Stream, and Zookeeper.
This comprehensive guide walks you through Ansible fundamentals, architecture, installation, core modules, playbook structure, variables, templates, handlers, roles, conditionals, loops, and practical examples, enabling you to automate configuration management across multiple Linux hosts with confidence and precision.
This article summarizes Zhang Chuan’s 2017 GDevOps conference presentation on CMDB, covering its definition, common implementations, design principles, automation integration, synchronization strategies, and the business value of a centralized configuration management database.
The internal Application Center, created in 2013, provides a unified system for naming applications, managing permissions, issuing encrypted tokens, and authenticating app identity to securely control access to configuration data and other resources, replacing fragile IP‑based restrictions with logical app‑based authorization.
The article describes how a development team transitioned to short‑cycle, periodic releases, outlining the goals, benefits, operational concerns, and a comprehensive set of improvements—including testing strategy, configuration and environment management, and automated deployment pipelines—to maintain quality while increasing release frequency.
This article reviews fifteen open-source DevOps tools across categories such as configuration management, bare-metal provisioning, orchestration, continuous integration, and monitoring, explaining their functions, typical use cases in private-cloud deployments, and providing example code snippets to help engineers automate, scale, and secure their cloud operations.
This guide introduces YAML syntax and features, explains how to define variables, facts, and loops in Ansible, details the INI‑style inventory file format, and walks through creating playbooks with hosts, tasks, handlers, and tags for reliable automation.
This article introduces Ansible as a powerful, agentless automation tool for operations engineers, covering the tasks suitable for batch deployment, its architecture, core concepts like idempotence, essential components, basic command usage, and practical examples such as installing software, managing users, and configuring SSH keys.
This article compiles more than sixty free, open‑source DevOps utilities—covering version control, build automation, CI/CD, container platforms, configuration management, logging, and monitoring—to help teams speed up development, streamline deployments, and improve operational efficiency.
This article explains Puppet's architecture, data flow, and practical examples, showing how automated configuration management can efficiently handle large numbers of servers, reduce manual errors, and improve operational reliability in modern IT environments.
This guide introduces Ansible for operations, covering its core features, installation, host preparation, key management, essential modules, playbook structure, YAML syntax, handlers, tags, variables, templates, loops, and conditional execution, with practical command examples and visual illustrations.
This article explains how Puppet automates large‑scale server provisioning by describing its architecture, workflow, manifest examples, class inheritance, and module structure, helping operations teams reduce manual effort and avoid errors in configuration management.
This comprehensive guide introduces Ansible, explains its agentless architecture, core components, installation, SSH key setup, inventory configuration, essential commands, and common modules, providing a practical roadmap for automating system administration and deployment tasks.
The article introduces JEN, JD's extended Nginx platform that centralizes configuration, monitoring, traffic splitting, rate limiting and automated operations through a web console and Ansible integration, addressing the complexity, restart requirements, and scaling challenges of large‑scale Nginx deployments.
This article breaks down comprehensive configuration management—covering code and build artifact versioning, application settings, and environment provisioning—explaining why it is the cornerstone of continuous delivery and offering concrete branch strategies, Git practices, artifact handling, injection methods, and automation tools to achieve reliable, low‑risk software releases.
This article explains how to design and operate feature toggles in Java applications, covering single‑instance implementation, cross‑instance synchronization via a meta‑server or Diamond, handling composite switches, avoiding security pitfalls, and automating degradation and upgrade based on runtime metrics.
Ansible playbooks, a powerful configuration management tool, use YAML to define tasks, variables, inventory, conditionals, loops, and handlers; this guide explains core components, syntax, variable scopes, command-line overrides, and provides practical examples for installing services, managing users, and triggering handlers based on changes.
The article explains Diamond, a simple, reliable, and easy‑to‑use distributed configuration management system used inside Taobao, detailing its features, persistence and disaster‑recovery mechanisms, overall architecture, client‑side subscription code, and the internal processes that keep configuration data synchronized.
This guide explains how to simplify and accelerate Tomcat web application migration by separating static binaries from external configurations, using Docker containers or Juju packages, applying layered configuration, managing persistent data with volumes, and automating deployment, scaling, and rollback operations.
This article examines common misconceptions in CMDB implementation, outlines four key success factors, and shares two real‑world case studies to help operations teams balance effectiveness with cost while automating configuration management efficiently.
The article explains how to achieve simple, fast, and lossless application migration by separating immutable binaries from external configuration, and how Docker containers and layered images can streamline deployment, scaling, configuration management, and persistent data handling.
This article introduces Ansible, a Python‑based configuration management and deployment tool, explains its installation prerequisites, demonstrates basic ad‑hoc commands, and provides a comprehensive guide to managing MySQL master‑slave replication using Ansible modules, playbooks, and role‑based directory structures.
This article shares Peng Lihang's practical insights on operations automation, covering the essential trio of configuration, state, and change management, the evolution of ops practices, platform design principles, and concrete steps for building scalable, business‑driven ops platforms.
This article outlines the fundamental principles, overall architecture, scope, and detailed components of an IT operations service system, covering policies, processes, organizational structure, platform tools, and management workflows such as incident, problem, change, and configuration management.
This article examines the hidden risks of hot‑reload mechanisms in web services, illustrates real incidents caused by careless configuration updates, analyzes root causes, and offers practical steps for detecting and fixing such pitfalls to improve operational reliability.
After hands‑on experience with both Salt and Ansible, the author compares their terminology, architecture, community support, speed, code structure, security, auditing, deployment, learning curve, and documentation, concluding that Ansible excels in ease of use while Salt offers superior scalability and performance for cloud environments.
Learn how distributed configuration management works—why large systems need a central store, the role of publish/subscribe, and how Zookeeper provides a robust solution for real‑time feature toggling without service restarts, ensuring high availability and seamless operations across micro‑services.
This article shares the author's personal journey of conceiving, planning, writing, and publishing a technical book on Puppet, detailing the motivations, step‑by‑step process, challenges, case studies, and the professional benefits gained from turning the writing effort into tangible value.
This article provides a comprehensive guide to Ansible, covering its purpose, installation via pip, ad‑hoc command usage, MySQL replication with the mysql_replication module, role‑based playbook structure, sample YAML files, execution output, and a comparison with other configuration‑management tools.
The article examines Ctrip’s prolonged service restoration after a May 28 incident, analyzing the complexities of SOA‑based architectures, the pitfalls of black‑box operations, and how transitioning to white‑box, DevOps‑aligned practices can prevent similar outages.
This article compiles a Q&A from the InfoQ Efficient Ops Talk, where expert Liu Yu discusses Puppet's limitations, compares automation tools like Ansible and MCollective, and offers practical advice for startups building sustainable release pipelines and managing Windows and cloud environments.
This article summarizes a comprehensive talk on Puppet covering its evolution, core concepts, architecture, ecosystem, practical use cases such as building a CMDB, automated deployment pipelines, OpenStack deployment, and the interplay with Docker, highlighting how Puppet drives modern operations automation.
This article explains why many IT teams struggle with code that works in development but fails in production, introduces Puppet as a configuration‑management platform, describes its declarative language, resources, types, providers, classes, manifests and modules, and shows how it enables reliable, collaborative DevOps workflows.
This article shares a former developer‑turned‑ops manager’s 13‑point guide on treating operations as resource‑centric engineering, covering what ops is (and isn’t), writing reliable programs, abstracting resources, configuration management, monitoring, and practical tips for building stable, scalable Linux systems.
