This comprehensive tutorial explains the fundamentals of PKI, CA hierarchy, CSR creation, and cfssl configuration, then walks through installing cfssl on Linux and using its gencert command to generate root, intermediate, server, client, and Kubernetes certificates with practical code examples.
This article compiles practical advice from experienced operations engineers on the challenges and strategies for achieving a 300,000 CNY yearly salary, covering skill development, career moves, company size, automation, and the evolving role of SRE/DevOps.
This guide walks you through integrating Alibaba Cloud DevOps MCP service with the Lingma code generation tool to automatically create code, branches, and merge requests from work item descriptions, covering prerequisites, token setup, service addition, and execution steps.
This article explains Kubernetes pod scheduling affinity, covering node affinity (hard and soft rules), pod affinity, pod anti‑affinity, and their practical implementations with step‑by‑step examples, code snippets, and performance considerations for building reliable, high‑availability workloads.
This guide explains Helm repository fundamentals, outlines official, community, and private repository types, lists popular chart sources, and provides step‑by‑step commands for adding, updating, listing, removing, searching, versioning, pulling charts, and managing private repositories with Helm.
This comprehensive guide walks you through designing a highly available Kubernetes cluster, covering multi‑master control‑plane deployment, worker‑node resilience, advanced networking with Cilium, durable storage with Rook/Ceph, monitoring with Thanos, security policies, disaster‑recovery strategies, cost control, and automated rollouts, all illustrated with concrete configuration snippets and real‑world performance results.
This article shares Anthropic’s SRE engineer insights on 23 actionable practices—from schema migration and Karpenter node management to OpenTelemetry adoption, Helm chart storage, and Terraform versus CloudFormation—offering concrete recommendations for building reliable, cost‑effective AI and cloud‑native platforms.
This guide introduces Podman Desktop, an open‑source graphical tool for simplifying container and Kubernetes workflows, outlines its core dashboard, multi‑engine and remote‑bridge features, and provides step‑by‑step installation instructions for macOS and Windows.
This comprehensive guide walks you through Jenkins' origins, explains why it outperforms its predecessor Hudson, and provides step‑by‑step instructions for installing, configuring, securing, and extending Jenkins with pipelines, plugins, user management, and email notifications for robust CI/CD automation.
This article provides a comprehensive guide to Docker, covering its core concepts, installation steps for CentOS, macOS, and Windows, essential Docker commands, detailed Dockerfile instructions, and an introduction to Docker Compose with practical examples.
The article examines how digital transformation reshapes IT operations, highlights the shift from manual tasks to automated, cloud‑based services, discusses communication gaps with business units, and proposes concrete strategies—vision setting, collaborative models, skill development, left‑shift practices, and unified standards—to restore operational value.
This article introduces Multipass, a lightweight cross‑platform virtual machine manager, and provides step‑by‑step instructions for installing it, launching Ubuntu instances, checking status, executing commands, and automating setup with cloud‑init, highlighting its usefulness for rapid development and testing environments.
Learn how to configure and verify essential Linux kernel parameters using sysctl, covering temporary and permanent settings, container-specific adjustments, validation techniques, common pitfalls, and best practices to boost network performance, stability, and security for system administrators and DevOps engineers.
This article explains how to set up Jenkins Pipeline to automate the continuous integration, testing, and deployment of PHP applications, covering prerequisite installations, plugin configuration, Jenkinsfile creation with stages for checkout, build, test, and deploy, and how to run and verify the pipeline.
This article curates a collection of useful Docker images—including remote IDEs, database managers, automation panels, lightweight serverless services, personal homepages, monitoring tools, note‑taking apps, analytics, file browsers, and Docker UI managers—providing feature highlights, special usage tips, and ready‑to‑run docker run and docker‑compose commands for each.
This article introduces ZeroNews, a cloud‑based intranet‑penetration service that supports HTTP, HTTPS, TCP and UDP, explains how to register, obtain a token, install the client on various platforms, configure mappings, and compares its pros, cons, and features against ngrok, frp and Cloudflare Tunnel.
This comprehensive guide walks you through Kubernetes fundamentals, cluster architecture, key components, resource objects, installation steps, and advanced features such as Ingress, RBAC, CronJobs, and Horizontal Pod Autoscaling, providing practical commands and examples for real‑world deployments.
This guide curates a selection of practical Docker images—from remote IDEs and database managers to personal dashboards and automation panels—detailing their key features, typical use cases, and ready‑to‑run Docker commands or compose files for quick deployment.
This article outlines practical microservice best practices—including the Single Responsibility Principle, cross‑functional teams, appropriate tooling, asynchronous communication, DevSecOps, isolated data stores, independent deployment, orchestration, and monitoring—to help developers build maintainable, scalable, and secure cloud‑native applications.
Six months after abandoning Kubernetes, our DevOps team reduced infrastructure spend by 62%, cut deployment time by 89%, eliminated weekend on‑call duties, and improved overall happiness, demonstrating that simplifying the tech stack can deliver substantial operational and business benefits.
This guide explores how to define, assign, and scope variables in Jenkins Pipelines—including environment, params, and direct assignments—through clear explanations, practical code snippets, and a real-world Kubernetes multi-container project, showing how parameterized builds transform static scripts into flexible, maintainable CI/CD workflows.
This article explains how PHP developers can use Git, Infrastructure as Code, Docker, and CI/CD pipelines to rebuild an entire application stack with a single commit, covering IaC concepts, automated deployment scripts, PHP-specific configuration, repository structure, and integration with CI/CD tools.
This article explains the fundamentals of Docker containers and images, describing how containers provide lightweight, isolated runtime environments, how images are layered read‑only snapshots, and the relationship between them, while also offering visual diagrams and a brief promotional note for further resources.
GitHub introduced the Copilot Coding Agent at Microsoft Build, an AI-driven tool that runs in GitHub Actions, handles code reviews, refactoring, and debugging, while enforcing strict security controls and integrating with Azure SRE workflows and open‑source VS Code extensions.
This article walks through a real‑world case of using CodeBuddy and the Model Context Protocol (MCP) to automate blog deployment, detailing the problem, MCP architecture, step‑by‑step deployment commands, MCP server generation, and the final intelligent operations workflow.
This tutorial walks you through preparing a CentOS 7 environment, installing and configuring Elasticsearch, Kibana, and Filebeat on single‑node servers, adjusting JVM settings, starting services, disabling firewalls, verifying the stack with curl, and setting up Kibana index patterns for log visualization.
This guide shows how to integrate Jenkins with Prometheus and Grafana, covering plugin installation, metric endpoint exposure, Prometheus scraping configuration, verification via curl, and importing a ready‑made Grafana dashboard to achieve proactive, visualized CI/CD monitoring.
This article explains why Python is a leading language for DevOps automation, detailing its core advantages, typical use cases such as bulk server management, configuration management, log analysis, and scheduled tasks, and introduces common Python libraries and learning pathways for building robust operational workflows.
This article explains Kubernetes' comprehensive security architecture, detailing the three critical gates—authentication, authorization, and admission control—along with token, basic, and certificate methods, RBAC policies, service accounts, kubeconfig setup, and practical examples for managing user permissions within clusters.
This guide explains how to extract and restore a specific Kubernetes resource from an etcd snapshot using a lightweight, step‑by‑step process that avoids full‑cluster recovery, minimizes downtime, and works with tools like etcdctl, auger, and kubectl.
This article examines Vivo's internet R&D efficiency platform, outlining the rapid growth challenges, the 1‑2‑3 framework of dual‑loop delivery, demand and development standardization, and three key automation scenarios that together reduced delivery time, increased test coverage, and saved hundreds of person‑days.
This comprehensive guide introduces Argo CD, explains its architecture and core concepts, walks through installation, cluster registration, application creation from a Git repository, and demonstrates how to sync and monitor applications using both the UI and CLI, empowering developers to adopt GitOps for Kubernetes deployments.
NodePass is an open‑source Go‑based network tunnel tool that lets developers and ops quickly create encrypted TCP/UDP bridges through firewalls and NAT, offering server/client modes, flexible encryption, zero‑config deployment, Docker images, and detailed logging for reliable remote access.
This guide shows how to combine ELK, DeepSeek’s LLM API, and a Feishu chatbot in Python to automatically collect, analyze, classify, and alert on system logs, using a config file, custom utilities, and a simple historical fault database for intelligent DevOps monitoring.
This article explains how to build dynamic GitLab CI pipelines that can create an arbitrary number of environments, trigger downstream pipelines across multiple projects, and pass artifacts between jobs using strategies like depend, needs, and dependencies to achieve flexible, scalable DevOps workflows.
This article explains how to replace traditional Jenkins agents with Kubernetes containers, covering prerequisites, benefits such as dynamic scaling and environment consistency, step‑by‑step configuration, pipeline code, and verification to create a more efficient and reliable CI/CD workflow.
This guide explains how Alibaba Cloud's ACK One multi‑cluster application distribution works, outlines its key capabilities such as intelligent resource scheduling and gang scheduling, and shows step‑by‑step how to convert a single‑cluster CD pipeline into a multi‑cluster continuous delivery system using Cloud Effect.
This guide explains how to leverage Alibaba Cloud's ACK One multi‑cluster application distribution together with the Cloud Effect DevOps platform to convert an existing single‑cluster continuous delivery pipeline into a resilient, multi‑region, multi‑cluster CD solution without modifying original YAML resources.
This guide explains the principles of MySQL master‑slave replication, shows how to configure and verify replication, provides Dockerfiles and docker‑compose files for MySQL and Redis clusters, and demonstrates testing each cluster step by step.
This article introduces Hugo, outlines its common application scenarios such as documentation sites and blogs, details core features like live preview, multilingual support, and theme system, and provides step‑by‑step installation and quick‑start instructions for Windows, macOS, and Linux.
The 25th GOPS Global Operations Conference in Shenzhen announced the dual ITU DevOps international and domestic standard assessment results, highlighting Agricultural Bank as the first state bank to earn a five‑star internal coach talent rating and showcasing multiple financial institutions that have successfully passed BizDevOps and continuous delivery evaluations, underscoring the growing importance of standardized DevOps practices in China’s finance sector.
This guide explains how to create a fast, reliable CI/CD workflow by integrating Jenkins, Docker, Maven, and Alibaba Cloud, covering pipeline benefits, step‑by‑step configuration, Docker image building, registry push/pull, Jenkins container setup, GitLab webhook integration, and common pitfalls with suggested optimizations.
This article explains Docker’s core runtime principles, detailing how images are built from layered filesystems, how containers instantiate those images with isolated namespaces, and how registries store and distribute images, illustrating each component with diagrams and code snippets for clear understanding.
This guide shows how to install, configure, and use Ngrok on macOS to create a secure public tunnel that forwards internet traffic to a local development server, enabling quick testing without deploying to a public server.
This guide explains why Jenkins permission management is critical, outlines required plugins, walks through switching to the Role‑based Authorization Strategy, shows how to create and assign roles, and demonstrates verification steps to ensure a secure DevOps workflow.
Spring Boot 3.5 introduces a suite of enhancements—including task decorator support, the Vibur connection pool, SSL health metrics, flexible configuration loading, automatic Trace‑ID headers, richer Actuator capabilities, functional programming hooks, and many more—each explained with code examples and practical usage tips for modern Java backend development.
This article details the 2024‑2027 national IT‑standard action plan, CAICT's dual ITU‑DevOps and domestic DevOps assessment, Galaxy Securities' successful Level‑3 Continuous‑Testing certification for two core projects, and insights from a Q&A interview on implementation challenges, benefits, and future plans.
The 2024 Google DORA report shows that AI adoption in software development raises documentation, code quality, and review speed, yet simultaneously reduces delivery throughput by 1.5% and stability by 7.2%, highlighting both productivity gains and new operational challenges for DevOps teams.
Learn how to correctly install, configure, and activate Calico's API server on a Kubernetes cluster—including prerequisites, downloading manifests, adjusting namespaces, pulling and tagging images, generating certificates, applying resources, and verifying the service—to manage Calico custom resources via kubectl.
This guide explains what Alibaba Cloud's MCP Server is, outlines its AI‑enabled DevOps capabilities such as code repository management, merge‑request handling and project management, and provides step‑by‑step instructions for prerequisites, installation, configuration, and a practical AI‑assisted development scenario using Tongyi Code.
Dockge is a sleek, open‑source visual tool for Docker Compose that lets you manage compose.yaml files, edit stacks, run containers, view logs, and access an integrated web terminal, enabling one‑click batch deployment and easier container operations without manual CLI commands.
Based on analysis of over 500 enterprise server failure cases, this guide lists 20 absolutely prohibited server actions across six dimensions, each illustrated with a real incident and practical technical measures to prevent recurrence.
This article explains how to set up Jenkins and its Pipeline plugin to automate the continuous integration, testing, and deployment of a PHP application, covering prerequisite installations, Jenkinsfile creation with stages for checkout, build, test, and deploy, and how to run and verify the pipeline.
This article explains Shift-Left and Shift-Right testing approaches, detailing their definitions, benefits such as early defect detection and real‑world validation, and suitable contexts like agile development, SaaS platforms, and high‑risk industries and continuous improvement.
The article details how the Shenzhen Stock Exchange successfully passed both international ITU DevOps and domestic DevOps standards assessments, highlighting the role of China’s Information Communication Research Institute, the six key capability areas evaluated, and the broader push for standardization in China’s digital finance sector.
The article details China’s push for international ITU DevOps standards, showcases Industrial and Commercial Bank of China’s successful BizDevOps dual‑certificate assessment, and presents an in‑depth Q&A with senior fintech managers discussing the value, challenges, and future roadmap of integrating business, development, and operations to accelerate digital transformation.
This article curates 15 top GitHub repositories offering structured DevOps learning paths, hands‑on exercises, project‑based tutorials, CI/CD and automation tools, as well as quick‑reference cheat sheets to help professionals deepen their operations expertise.
This guide introduces Docker Compose, explains its project‑service‑container hierarchy, lists the most useful docker‑compose commands with examples, and details the key sections and attributes of a docker‑compose.yml file, including version, services, networks, volumes, and restart policies.
At the 25th GOPS Global Operations Conference in Shenzhen, China Galaxy Securities showcased its successful dual certification under ITU DevOps standards, detailing the Bond Investment Business Support System's continuous testing achievements, pipeline integration, and the broader impact on financial DevOps practices.
The 25th GOPS Global Operations Conference in Shenzhen announced the dual ITU DevOps international and domestic standard assessment results, highlighting the Agricultural Bank of China's AAAAA‑level DevOps coach certification and showcasing multiple state‑owned banks, exchanges, and securities firms achieving leading domestic DevOps maturity across BizDevOps, continuous delivery, and continuous testing standards.
Learn how to dramatically reduce Docker image sizes by applying six practical optimization methods—including minimal base images, multi‑stage builds, layer minimization, caching strategies, .dockerignore usage, and external data storage—while also discovering essential tools and real‑world examples to streamline your container deployments.
This comprehensive guide presents over twenty essential Docker CLI commands, covering image management, container lifecycle, registry operations, and system cleanup, with clear syntax examples and practical use‑case snippets to help developers and DevOps engineers work efficiently with containers.
This article details China’s 2024‑2027 information‑standard action plan, CAICT’s dual ITU‑DevOps evaluation, Galaxy Securities’ successful Level‑3 Continuous Testing certification for two core platforms, and an in‑depth interview revealing the practical benefits, challenges, and future roadmap of adopting DevOps standards in the financial sector.
The article outlines China’s recent push to internationalize IT standards through the 2024‑2027 Action Plan, details the development and adoption of ITU DevOps and AI‑enhanced DevOps standards, and explains the emerging BizDevOps framework that integrates business and technology for agile digital transformation.
Changan Automobile’s full‑link observability platform passed both ITU DevOps international and domestic standards assessments, showcasing its advanced monitoring capabilities, improved system stability, and strategic role in the company’s digital transformation, while the interview reveals implementation challenges, benefits, and future AI‑driven enhancements.
The article details China's push for internationalized information standards, the CAICT's dual ITU DevOps and domestic assessments, and how the Shenzhen Stock Exchange successfully passed Level 3 continuous delivery evaluation, showcasing advanced DevOps capabilities and their alignment with national digital transformation policies.
The article details China Information Communication Institute’s dual ITU DevOps international and domestic standard assessment, ICBC’s successful BizDevOps certification for its Fast‑Loan project, and insights from senior fintech managers on the value, challenges, and future roadmap of integrating business, development, and operations to drive digital transformation.
Korifi provides a Cloud Foundry‑style abstraction layer that simplifies Kubernetes application deployment and management, while OpenCost offers comprehensive, multi‑cloud cost visibility and optimization; together they enable developers to deploy apps easily, monitor pod‑level expenses, and make data‑driven resource allocation decisions.
This article presents a comprehensive overview of building an enterprise‑level LLMOPS platform—including concept definitions, the relationship between LLMOPS, MLOps and intelligent agent platforms, four development tiers, architecture layers, core technical concerns, deployment options, and the benefits of cloud‑native AI development.
This guide walks you through the complete Jenkins CI/CD workflow—from source‑code changes triggering automated builds, tests, and packaging to secure deployment—showing how to set up Jenkins, configure pipelines, install essential plugins, and manage global tools for reliable, hands‑free releases.
This guide explains why the default CentOS 7 YUM repositories are slow for Chinese users and provides step‑by‑step instructions—including backing up existing .repo files, downloading Alibaba Cloud mirrors, adjusting version numbers, refreshing the cache, verifying updates, troubleshooting common errors, and advanced tips such as adding EPEL—so you can achieve faster, more reliable package management.
This article explains how a corrupted Maven .m2 cache can sabotage builds and CI pipelines, outlines ten destructive Maven options with code examples, and provides practical recovery steps to restore reliable, reproducible builds.
This article explores Terraform’s rise as the leading Infrastructure as Code tool, detailing its declarative language, multi‑cloud support, state management, modular design, and vibrant ecosystem, while speculating on its role in Google Firebase Studio’s development environments.
This article provides a comprehensive overview of Kubernetes, covering its cloud‑native architecture, core components such as API Server, Scheduler, Controller Manager, etcd, kubelet and kube‑proxy, and explains the workflow that enables automated deployment, scaling and management of containerized applications.
This guide explains how to use the Kubernetes Resource Orchestrator (Kro) to define a reusable Resource Graph Definition for WordPress, install Minikube and Kro, and deploy multiple WordPress instances on a local Kubernetes cluster.
This article introduces ten indispensable operations engineering tools—Shell scripts, Git, Ansible, Prometheus, Grafana, Docker, Kubernetes, Nginx, ELK Stack, and Zabbix—detailing their functions, suitable scenarios, advantages, and real‑world examples, plus sample code snippets to help engineers automate and monitor infrastructure efficiently.
This comprehensive guide walks you through SaltStack fundamentals, installation, master‑minion configuration, communication modes, key management, state files, highstate, Grains and Pillar data, targeting methods, and practical examples such as file management, package installation, cron jobs, and LAMP deployment, providing a solid foundation for modern automated operations.
This guide introduces OpenProject, a popular open‑source project management platform, walks through Docker‑based installation, showcases core features like Gantt charts and Agile boards, and demonstrates a practical workflow using a simplified project management scenario.
This article introduces k8m, a lightweight AI‑enhanced console for Kubernetes that simplifies cluster management, installation, configuration, and daily operations, while offering features such as YAML auto‑translation, AI‑driven event and log diagnostics, command generation, multi‑cluster support, and role‑based access control.
This article explores the Model Context Protocol (MCP), the emerging “USB‑C” for AI, detailing its core advantages, implementation with Kubernetes, a six‑layer cloud‑native architecture, practical code examples, and developer guidelines for building AI‑powered, secure, and scalable services.
Drawing from over 500 enterprise server failure incidents, this guide outlines twenty absolutely prohibited server actions across security configuration, system operation, data management, and architecture design, each paired with a real-world case, risk rating, and concrete remediation steps.
The author recounts the high hopes and subsequent frustrations of adopting the community‑maintained terraform‑aws‑eks module for AWS EKS, detailing hidden complexities, limited AI assistance, and practical lessons on embracing complexity, critical use of open‑source modules, and the importance of rest during tough debugging sessions.
This guide explains why Sphinx and ReadTheDocs are a powerful combination for generating and hosting documentation, and provides step‑by‑step instructions—including installing dependencies, initializing the project, configuring conf.py, adding a .readthedocs.yml file, and linking the repository—so that documentation is built automatically on each commit.
This article reviews nine practical container‑monitoring solutions—from Last9 and Prometheus to Dynatrace and Elastic Observability—detailing their key features, pricing, and why developers prefer them, and then offers comprehensive best‑practice guidance for metrics, tagging, alerts, and advanced observability strategies in Kubernetes‑driven cloud‑native deployments.
This article explains how to set up Jenkins and its Pipeline plugin, configure required plugins and a Git repository, write a Jenkinsfile with stages for checkout, build, test, and deploy, and run the pipeline to automate continuous packaging and deployment of PHP applications.
This guide explains why Redis clustering is needed for capacity, concurrency and failover, describes Redis 3.0's decentralized cluster architecture, provides step‑by‑step commands to configure, launch and combine six nodes into a cluster, demonstrates slot calculations, client usage with Jedis, and outlines fault recovery, pros and cons, and cleanup procedures.
Agile testing transforms software quality by embedding testing throughout development, emphasizing shift‑left practices, automation, and close collaboration between developers and QA, with detailed guidance on testing quadrants, sprint vs release strategies, and practical steps to achieve faster, more reliable product delivery.
This guide walks through practical solutions for Jenkins problems—including Performance plugin incompatibility, CSP adjustments, custom context paths, git clone timeouts, Windows JNLP execution, CSRF disabling, JVM memory tuning, disk‑space cleanup, build timeouts, global properties, managed scripts, and lightweight backups—helping you keep your CI/CD pipeline stable and efficient.
This comprehensive Docker tutorial walks you through the fundamentals, installation steps, essential commands, data volumes, networking, and Dockerfile creation, enabling readers to move from zero experience to proficient container management in a single, detailed guide.
This guide demonstrates how to use Ansible playbooks to copy a single file or multiple files from a source host to a target server, detailing the required YAML configuration, copy module parameters, and execution steps for reliable file deployment in automated operations.
This article provides a comprehensive overview of GitLab, covering its origins, key features, core DevOps capabilities, and step‑by‑step instructions for installing and configuring GitLab on Rocky Linux, including required system specs, repository setup, package installation, and post‑install verification.
This guide shows how to use the Fabric8 Kubernetes Java client to load, create, apply, list, watch, and delete core Kubernetes objects such as EndpointSlice, PersistentVolumeClaim, PersistentVolume, NetworkPolicy, PodDisruptionBudget, and various RBAC resources, with complete code examples for each operation.
This tutorial demonstrates how to configure IntelliJ IDEA for remote one‑click deployment of a SpringBoot application with Docker, covering environment setup, SSH and Docker daemon configuration, Dockerfile creation, Maven build steps, firewall adjustments, and troubleshooting common deployment issues.
This guide demonstrates how to use the Fabric8 Java client to create, retrieve, update, list, watch, and delete common Kubernetes resources such as Job, CronJob, Namespace, ServiceAccount, Ingress, StatefulSet, and DaemonSet, providing code snippets for each operation.
The article outlines China’s 2024‑2027 information‑technology standards initiative, the DevOps continuous‑testing maturity model released in 2023, its five‑level capability framework, and showcases early evaluation results from major banks, highlighting improvements in automation, defect prevention, and end‑to‑end quality assurance.
Kustomize, built into kubectl, lets you declaratively manage Kubernetes YAML by organizing base resources, dynamically generating ConfigMaps and Secrets, applying transformers for environment‑specific tweaks, and optionally validating output, enabling a clean Base + Overlay workflow that reduces duplication and simplifies multi‑environment configuration.
This article introduces a comprehensive set of shell scripts that automate system initialization across dozens of Linux distributions, detailing supported features, version‑specific updates, usage instructions, and code examples for network, security, package management, and more.
This article explains how to create a YAML configuration for CI/CD, store it in a GitLab repository, set up GitLab webhooks and the Jenkins Generic Webhook Trigger plugin, and configure a Jenkins Pipeline to read the YAML and execute conditional build, test, and SonarQube stages.
This article outlines fifteen common operational and management mistakes—such as frequent incidents, excessive new hires, lack of automation, and missing rollback plans—that can trigger system outages, and offers guidance on how teams can strengthen testing, processes, and team capabilities to prevent downtime.
This article explains how to safeguard sensitive configuration data such as database credentials and API keys by using .gitignore, environment variables, secret management tools, and AES encryption with a Python script, and describes how to integrate these practices into CI/CD pipelines.
