This guide walks through selecting a clustering strategy, installing Percona XtraDB Cluster (PXC) with Docker, configuring a five‑node cluster, adding HAProxy for load balancing, testing access, and handling node failures to achieve strong consistency and high availability for critical data.
This article introduces the main container image building methods for environments using containerd, covering Docker‑outside‑Docker, DinD sidecars, DaemonSet deployment, and daemon‑less tools such as Kaniko and Jib, with detailed YAML examples and usage notes.
Docker announced a subscription‑based Business edition of Docker Desktop, outlining its enterprise‑focused features, pricing, the continued free Personal tier, and a detailed look at the platform’s architecture, workflow, and the company’s turbulent growth and two perceived “deaths.”
This article provides a comprehensive guide to Dockerfile syntax, covering variables, FROM, RUN, CMD, LABEL, EXPOSE, ENV, ADD, COPY, ENTRYPOINT, VOLUME, ARG, ONBUILD, STOPSIGNAL, HEALTHCHECK, SHELL, and WORKDIR instructions, with examples and usage tips for building efficient Docker images.
This guide explains how to set up a Percona XtraDB Cluster (PXC) using Docker containers, configure five-node replication with strong consistency, and implement HAProxy as a TCP load balancer to achieve high availability and balanced read/write traffic across the cluster.
This tutorial walks through setting up a DTLE 3.21.07.0 monitoring environment by configuring DTLE and Nomad metrics, deploying Prometheus and Grafana via Docker, and creating common monitoring panels such as CPU, memory, bandwidth, latency, and TPS using PromQL.
This article explains the differences between hardware and system clocks, how Linux manages time zones, why container images often have incorrect default time zones, and provides multiple practical methods—including Dockerfile settings, volume mounts, environment variables, PodPreset, and libfaketime—to correctly set or adjust time in Docker and Kubernetes environments.
This article shares a hands‑on experience of IntelliJ IDEA 2021.3’s new remote execution capabilities, detailing how to configure and run Java projects via WSL 2, SSH, and Docker, including step‑by‑step setup, common pitfalls, and practical tips for seamless local‑like debugging.
This tutorial shows step‑by‑step how to containerize a ReactJS app and dramatically shrink its Docker image using Alpine base images, multi‑stage builds, and Nginx, reducing the size from 1.43 GB to just 22.4 MB while preserving functionality.
NetEase Media details its year‑long journey building a cloud‑native container platform—covering foundational concepts, a robust infrastructure framework, Kubernetes deployment, solutions to pre‑containerization challenges, and practical best practices such as graceful shutdowns, health probes, and resource‑limit configurations.
This article explains Kubernetes container networking fundamentals, the role of Linux network namespaces, veth pairs, bridges, and iptables, and compares same‑host communication via docker0 with cross‑host solutions like CNI plugins (flannel, Calico) and their routing modes.
This guide walks you through Docker fundamentals—from understanding containers versus virtual machines, installing Docker, creating Dockerfiles, building and running images, to best practices and advanced commands—enabling you to containerize and deploy web applications efficiently across environments.
This article explains the recent US export restrictions on Docker, highlights the need for open‑source replacements, and provides detailed overviews of ten prominent Docker alternatives—including Podman, LXC, RKT, OpenVZ, Rancher, Nanobox, Singularity, Kubernetes, OpenShift, and Apache Mesos—covering their key capabilities, security aspects, and platform support.
This guide walks you through installing NVIDIA drivers, CUDA, and nvidia-docker2 on a Linux host, configuring Docker to access the GPU, and verifying the setup with commands and sample TensorFlow/PyTorch code, enabling deep‑learning workloads inside containers.
The article demonstrates how to integrate Paddle Serving’s new security‑gateway feature with the open‑source Kong API gateway and its Konga UI, using Docker‑Compose to create a secure, HTTPS‑encrypted, header‑authenticated AI model serving endpoint that hides internal services while supporting high‑concurrency inference.
This guide walks you through installing kkFileView on Windows and Linux, integrating it with MinIO for online file preview, configuring Docker containers, and customizing settings such as watermarks, providing step‑by‑step instructions and code snippets for a seamless preview service.
This guide explains what Tekton is, outlines its core CRDs, shows how to deploy it on a Kubernetes cluster, and provides a step‑by‑step example that builds, containers, and deploys a Spring Boot application using Maven, Docker, and Tekton pipelines.
This guide shows how to set up the open‑source Searx search engine using a Docker image, walk through the essential Docker commands, explore its Python source code, and explains how to customize the response handling for building your own lightweight search engine.
Learn how to quickly set up the ELK stack (Elasticsearch, Logstash, Kibana) using Docker on a Windows 10 VirtualBox VM, configure Filebeat, and verify log collection and visualization, with detailed commands, configuration files, and troubleshooting tips for a complete operational experience.
This article explains the concept of union file systems, compares implementations such as UnionFS, aufs, OverlayFS, ZFS and Btrfs, and demonstrates how Docker leverages OverlayFS with copy‑on‑write layers to create lightweight, fast‑starting containers.
This article walks through deploying a Flask web service with GitLab CI/CD, covering Docker image creation, a comprehensive .gitlab-ci.yml pipeline, Kubernetes resource definitions, runner variable configuration, and how branch, tag, and manual review jobs orchestrate continuous integration, delivery, and deployment.
This guide walks you through installing MinIO with Docker, using its visual Console, managing buckets and files via the MinIO Client, and leveraging S3 compatibility to integrate with third‑party tools, providing a complete self‑hosted object storage solution.
This guide walks through downloading the Docker 20.10.7 offline package, extracting it on a CentOS 7 host, configuring a systemd service, starting Docker, verifying the installation, and then fully removing Docker and its service files when needed.
This article explains how Ephemeral Containers, an alpha feature since Kubernetes v1.16, provide a native way to debug pods and even worker nodes, replacing older tools like kubectl‑debug and offering flexible, container‑agnostic troubleshooting with code examples and a custom debug image.
This guide explains how to use Windows Containers on Alibaba Cloud ECS and ACK to containerize and run .NET Framework 4.x applications, covering Windows Container basics, Alibaba Cloud image support, step‑by‑step deployment commands, networking, resource limits, and Docker Compose usage.
This tutorial walks through installing Keycloak via Docker, exploring its admin console, configuring realms, users, and clients, and demonstrates both authorization code and password grant flows before integrating Keycloak with a SpringBoot application to protect APIs using OAuth2.
This article explains how Linux signals work, details common signals like SIGTERM and SIGKILL, and demonstrates how to use Dockerfile ENTRYPOINT and CMD in exec form together with Go signal handling to achieve clean, graceful shutdowns of containers.
A global cybersecurity firm replaced its fragmented cron‑based build, test, and deployment processes with an automated Jenkins CI/CD pipeline, integrating GitLab, Docker, and monitoring tools to achieve continuous delivery, visibility, and faster, reliable releases across multiple projects.
This guide walks through installing Docker on CentOS 7, launching Portainer with a single Docker command, accessing its web UI on port 9000, setting an admin password, and using the interface to view and manage images and containers.
This guide walks through installing Docker CE on a CentOS 7 system, covering prerequisite kernel checks, repository configuration, package installation, verification with hello‑world, common troubleshooting, and clean removal steps, while explaining core Docker concepts such as images, containers, and registries.
This article shows how to quickly set up a searchable engine using the open‑source Searx Docker image, provides the necessary Docker commands, examines core Python code that aggregates query results, and suggests customizing responses with your own data sources.
This article walks through setting up GitLab CI to automatically build a Spring Boot JAR, create Docker images for Java 8 and Java 11, push them to a private registry, and deploy them to a server, covering required Dockerfiles, .gitlab-ci.yml configuration, environment files, and necessary GitLab variables.
Learn how to set up a complete Android CI/CD pipeline by installing JDK, Android SDK, and Gradle, creating Docker images for builds, configuring Jenkins on Kubernetes, and automating packaging and deployment, with detailed commands and troubleshooting tips for efficient mobile app releases.
This article provides an extensive, English‑language guide to cloud native concepts, covering definitions, core technologies such as microservices, containers, orchestration, service mesh, DevOps practices, and practical insights for CTOs evaluating cloud adoption, with detailed sections on Docker, Kubernetes, networking, and ecosystem tools.
This article demystifies single‑host container networking by explaining network namespaces, virtual Ethernet pairs, Linux bridges, routing, NAT with iptables, Docker network drivers and rootless container limitations, while providing step‑by‑step commands and code snippets for practical implementation.
This guide provides a comprehensive collection of Docker commands for inspecting Docker versions, handling images (listing, searching, pulling, deleting, building), and managing containers (starting, stopping, logging, attaching, executing, committing, and copying files), offering a practical reference for developers and operations engineers.
This article explains the limitations of Docker's default JSON‑file logging, compares logging drivers, introduces S6‑based log redirection to avoid daemon bottlenecks, and presents a Kubernetes‑wide log‑collection architecture using DaemonSets, Filebeat, Logrotate, Kafka, and Elasticsearch.
This article explains how Docker leverages Linux namespaces to isolate system resources, outlines the six core namespaces and newer additions, clarifies common misconceptions such as the Mount namespace flag, and details the internal nsproxy structure that links processes to their namespaces.
This guide walks you through IntelliJ IDEA 2021’s revamped Profiler, the new microservice call‑graph analysis for Spring Boot, Micronaut and Quarkus, the Docker‑based run configurations, and the built‑in JSONPath expression debugger, showing how to leverage each feature to improve development efficiency.
This article explains the differences between running Docker containers as the root user and using the --privileged flag, demonstrates how both affect container security, and provides practical methods to avoid root privileges in Docker and Kubernetes environments.
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.
This article walks you through installing Keycloak 14.0.0 via Docker, configuring the admin console, creating custom realms and users, and explains core concepts such as realms, authentication, authorization, roles, groups, clients, and identity providers for practical security integration.
This article provides a comprehensive overview of Docker’s architecture, detailing the roles and interactions of its client, daemon, engine, registry, graph database, drivers, libcontainer, and containers, along with illustrative diagrams of each component.
This tutorial explains how to set up a single‑node Elasticsearch instance with Docker, integrate it into a Spring Boot application using Spring Data Elasticsearch Repositories, configure the necessary dependencies and settings, and perform basic CRUD operations and visualization with Kibana.
This article examines the architectures, core features, and performance of several open‑source API gateways—including Nginx, Kong, APISIX, Tyk, Zuul, and Gravitee—by deploying sample services with Docker Compose, testing routing, load‑balancing, authentication, and other capabilities, and presenting benchmark results.
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 how to build a custom serverless runtime and a custom container runtime on Alibaba Cloud Function Compute, covering the background of FaaS, the concept of custom runtimes, step‑by‑step development using TypeScript, Docker, and deployment with the Fun tool.
This guide walks through building isolated single‑host container networks on Linux using network namespaces, virtual Ethernet pairs, bridges, routing and NAT, showing step‑by‑step commands to create, connect, and expose containers, troubleshoot connectivity, and understand Docker’s networking models.
This article walks through configuring IntelliJ IDEA 2021.3 to run and debug Java applications on remote environments using WSL, SSH, and Docker, detailing the setup steps, required JDK configuration, and practical tips for seamless remote execution.
This article introduces seven popular open‑source microservice projects, each with detailed descriptions of their architecture, technology stacks such as Spring Boot, Spring Cloud, Docker, and links to the repositories, helping developers quickly start practical microservice development.
This article details a practical implementation of a distributed performance testing framework using DCS_FunTester, describing the master‑slave architecture, Docker image setup, Groovy/Java scripts, sample code, console output, and server logs to help engineers replicate the approach.
This guide introduces APISIX, a cloud‑native API gateway with visual management and dozens of plugins, walks through its core concepts, shows how to install it via Docker‑Compose, and demonstrates basic and advanced usage such as routing, authentication, rate limiting, and CORS support.
This talk walks through the evolution of containerization—from early chroot and jails to modern Kubernetes—explains Redis’s core features, compares various container solutions for Redis deployment, and offers practical guidance on installation, scaling, monitoring, and fault recovery in both single‑instance and clustered environments.
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 introduces the open‑source Seata distributed transaction solution, explains its AT, TCC, SAGA and XA modes, describes the TC‑TM‑RM components and workflow, and provides a step‑by‑step Spring Boot demo with Docker, Maven dependencies, configuration, and code examples for a multi‑service purchase scenario.
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.
Learn how to assemble the NVIDIA JetBot, install its Docker‑based AI software, train obstacle‑avoidance and path‑tracking models, and create a functional self‑driving miniature vehicle, even if you’re a beginner with basic Python skills.
This guide shows how to use Docker and VS Code's Remote‑Containers extension to create a standardized, container‑based local development setup that speeds onboarding, ensures consistency across team members, and simplifies dependency management.
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.
This step‑by‑step tutorial shows how to install Windows 10, enable WSL2, set up an Ubuntu subsystem, install Docker and Portainer, and configure a convenient development environment on Windows within half an hour.
This article provides an in‑depth overview of Apache Kylin, covering its history, mission, core MOLAP principles, technical architecture, step‑by‑step installation (Docker and Hadoop), performance tuning, advanced cube settings, and detailed case studies from major companies such as Baidu, Lianjia, and Didi.
This article explains the fundamentals of container networking in Kubernetes, covering Linux network namespaces, veth pairs, Docker's default bridge, CNI plugins such as Flannel and Calico, their routing modes, and practical command‑line examples for cross‑host communication.
This comprehensive guide walks you through Prometheus' origins, core features, installation methods, configuration files, PromQL basics, exporter setup, Grafana integration, alerting with Alertmanager, and advanced topics like service discovery, providing a complete roadmap for building a production‑grade monitoring system.
This article explains step‑by‑step how to build a MySQL debug binary inside a Docker container, covering environment preparation, dependency installation, configuring the build with CMake, compiling, and locating the resulting mysqld‑debug executable, while also noting performance trade‑offs of debug builds.
This tutorial explains how to download a CentOS 7 Docker image, run it as a lightweight Linux virtual machine, map ports and directories, access the container's shell, and export or import the container as an image for easy migration across hosts.
This tutorial provides detailed commands and configurations for installing a specific Docker version, setting up persistent MySQL containers, importing Apollo database scripts, and deploying Apollo Config, Admin, and Portal services using Docker on a CentOS host.
This tutorial walks through installing Docker on macOS, configuring a fast Chinese mirror, and using Docker commands to pull, run, and link MySQL, Nginx, and PHP‑FPM containers, including volume mounting, configuration file adjustments, and installing common PHP extensions.
This article walks through the design and implementation of a Docker‑based distributed performance testing framework using FunTester, detailing the master‑scheduler, slave agents, test case packaging, code examples, and sample results for load‑testing a target service.
This article explores the RedisSyncer toolkit for achieving reliable bidirectional Redis synchronization, explains the necessity of cache sync, details the data offset solution and double‑read approach, and provides step‑by‑step deployment instructions with code examples and practical considerations.
This article chronicles a SaaS company's transition from a two‑person monolithic SPA to a multi‑service microservice architecture, covering RESTful API design, CI integration testing, Spring Cloud choices, Kubernetes containerization, automated deployment, link tracing, and operational monitoring, while highlighting practical lessons for small teams.
This article provides a step‑by‑step tutorial on installing Apache Pulsar with Docker, managing it via Pulsar Manager, and integrating it into a Spring Boot application using the Pulsar Java Spring Boot starter, complete with code examples and UI screenshots.
This article explains what Docker is, its underlying architecture—including namespaces, cgroups, and union file systems—its client‑server model, its core concepts such as images and containers, its installation methods, a step‑by‑step Koa hello‑world example, and how to migrate containers using export and import commands.
This article walks through a complete real‑time recommendation system built on Apache Flink, detailing its v2.0 architecture, modules for user behavior, interest, and product profiling, the recommendation algorithms (hot‑list, collaborative filtering, item similarity), and step‑by‑step Docker deployment of MySQL, Redis, HBase, and Kafka.
This tutorial explains how to create a Jenkins Pipeline that builds a Go application, packages it into a Docker image, pushes it to a private Harbor registry, and deploys it to a Kubernetes cluster using Helm, covering node labeling, pod templates, credentials, and optional rollback.
This article explains how to use Puppeteer on a Node.js backend to render web pages as PDF files, covering installation, headless browser launch, page navigation, handling lazy‑loaded images, custom print CSS, authentication cookies, and Docker deployment with practical code snippets.
This article walks through a complete Flink‑based recommendation system, detailing its v2.0 architecture, recommendation algorithms, front‑end and back‑end components, and step‑by‑step Docker deployment of MySQL, Redis, HBase, and Kafka services.
This tutorial explains how to isolate, virtualize, and connect Linux network stacks on a single host using network namespaces, virtual Ethernet pairs, Linux bridges, routing, NAT, and iptables, covering both basic concepts and practical commands for Docker and Podman environments.
This article explains how to design and implement distributed performance testing cases using jar‑method invocations, demonstrates a Java demo with reflection‑based execution, discusses common pitfalls, and shows how to package, deploy, and run the test cases within a Docker‑enabled environment.
This article explains the rationale behind Kubernetes' decision to remove Dockershim, outlines the role of the Container Runtime Interface (CRI), compares Docker's feature set with CRI requirements, and discusses the impact on extensibility and future container runtimes.
This article provides practical guidelines for writing Dockerfile instructions—including RUN, CMD, ENTRYPOINT, ADD, COPY, and WORKDIR—offering syntax recommendations, best‑practice examples, and advice on when to use each command to create efficient, maintainable container images.
This article demystifies single‑host container networking by explaining network namespaces, virtual Ethernet (veth) pairs, Linux bridges, IP routing, NAT masquerading, port publishing, and the differences between Docker and rootless container networking, all with practical command‑line examples.
This article explains how Ctrip’s NFES framework adopts a GitDev CI/CD pipeline—detailing the Install, Verify, and SonarAndImage stages, their constituent steps, and the .gitlab-ci.yml configuration—to streamline web development, improve code quality, and accelerate delivery of front‑end projects.
Spring Boot 2.5 introduces major enhancements such as Java 16 support, Gradle 7 and Jetty 10 compatibility, HTTP/2 over TCP, a revamped datasource initialization mechanism, environment‑variable prefixes, Docker build improvements, layered WARs, actuator endpoint changes, extensive dependency upgrades, and several deprecations, while urging careful migration.
This article explains how to configure .NET Core projects and Docker build pipelines so that XML documentation files from reusable NuGet packages are correctly copied and displayed in Swagger UI, covering project file changes, MSBuild targets, Dockerfile adjustments, and environment variables.
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 explains the background of containers, compares Docker and Kubernetes, details the deprecation of Docker's dockershim in Kubernetes v1.20, outlines the impact on developers and operators, and provides practical steps for migrating to OCI‑compatible runtimes.
Spring Boot 2.5.0 introduces Java 16, Gradle 7, Jetty 10 support, enhanced Docker image building, dark‑mode docs, numerous configuration improvements, updated dependency versions, and several deprecations, providing developers with a richer, more modern backend framework.
This article presents a comprehensive walkthrough of a Flink‑powered recommendation system, detailing its v2.0 architecture, module functions, recommendation algorithms (hotness, product similarity, collaborative filtering), front‑end and back‑end UI, and step‑by‑step Docker deployment of MySQL, Redis, HBase, and Kafka services.
This article details a practical implementation of the FunTester distributed performance testing framework, covering its master‑slave‑server architecture, Docker image creation with a Groovy base, and full code examples for the master scheduler, slave agent, and test server.
This article presents a comprehensive overview of a Flink-powered real-time recommendation system, detailing its v2.0 architecture, module functions, recommendation algorithms, front‑end and back‑end interfaces, Docker‑based deployment of MySQL, Redis, HBase, Kafka, and step‑by‑step startup procedures.
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.
The article explains the background of containers, the role of Docker as a runtime, why Kubernetes is deprecating Docker in favor of CRI‑compatible runtimes, the migration path, and what developers and cluster operators need to know to adapt to the change.
This article explains why Docker containers often stop right after starting, covering the role of PID 1, daemon‑off mode, Linux process management concepts like zombie and orphan processes, and how Docker’s containerd‑shim and runC interact to keep containers alive.
The article outlines the evolution from traditional code repositories to a code‑as‑service model, describing how pipeline‑as‑code, machine‑as‑code, server‑cluster‑as‑code and infrastructure‑as‑code (Jenkins, Docker, Kubernetes, Terraform) enable cloud‑native development, DevOps automation, and platform‑centric R&D ecosystems.
The article details Ctrip's development of a cloud‑native AVD IaaS platform that leverages Kubernetes, Docker, and Android Virtual Devices to provide scalable, cost‑effective, and high‑availability mobile automated testing infrastructure, addressing hardware costs, performance, and operational challenges while supporting continuous integration pipelines.
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 tutorial walks you through replacing yum sources, installing and configuring Docker with kernel tweaks and a mirror, adding the Nginx repository and setting up host resolution, then pulling and running a Jenkins container while addressing common plugin‑download issues.
The article explains how Google and Facebook’s monolithic repositories and unified build systems let them avoid Docker images by using direct module transfer, tarballs, XAR files, and overlay filesystems, while highlighting the technical trade‑offs and challenges of layered caching in large‑scale clusters.
This article examines the growing security concerns of container images, presents alarming vulnerability statistics, explains why image scanning should be placed before image push in the CI/CD pipeline, and outlines practical best‑practice recommendations such as using lightweight base images, non‑root users, secret management, minimal packages, Dockerfile linting, and avoiding unmaintained images.
