This article explains common testing environment challenges and demonstrates how Docker can create reproducible, isolated test setups, streamline Selenium UI automation, and integrate with CI/CD pipelines to improve efficiency and reliability for software testing teams.
This article provides a detailed overview of Docker and container technology, covering its architecture, networking models, storage mechanisms, integration with PaaS/IaaS/OpenStack, orchestration tools, micro‑service adoption, DevOps impact, and the broader ecosystem of cloud‑native solutions.
This guide walks you through deploying the Mall e‑commerce application on a CentOS 7.6 server using Docker and two docker‑compose files, covering environment setup, required images, configuration of MySQL, Redis, Elasticsearch, RabbitMQ, Nginx, and the Mall services, plus firewall adjustments.
This article explains Docker containers and Dockerfiles, compares simple and compact Dockerfile examples, demonstrates single‑file versus multi‑file builds, and shows how multi‑stage builds can dramatically reduce image size while keeping Dockerfiles maintainable and efficient.
This article introduces Docker as an open‑source container engine, explains its advantages over traditional virtual machines, shows how it powers microservices, and provides step‑by‑step Linux installation, basic commands, and a hello‑world example for newcomers.
This article surveys the evolution of artificial intelligence, clarifies weak versus strong AI, explains when machine learning is appropriate, and provides a step‑by‑step TensorFlow tutorial that trains a fashion‑MNIST image classifier using Docker and Python.
This article explains how container technology, including Docker and Kubernetes, empowers modern frontend development by improving build isolation, accelerating testing, enabling rapid rollbacks, and providing stable, scalable deployment pipelines for web, mobile, and mini‑program applications.
The article explains how Docker and Kubernetes use Linux namespaces to isolate processes, network, IPC, mounts, UTS and users, and employ cgroups to enforce CPU, memory and I/O limits, detailing Docker’s architecture, Kubernetes’s millicore‑based resource model, QoS classes, and the hierarchical pod‑level cgroup structure.
Learn how to install Docker Compose, configure its permissions, verify installation, and use it to define services, images, ports, volumes, and environment variables in a docker‑compose.yml file, then manage containers with common commands to deploy and run multi‑container applications efficiently.
In a Docker‑based test environment, a Dubbo‑called RPC timed out due to a MySQL deadlock caused by missing indexes, and the issue was resolved by monitoring with Druid, remote JMC inspection, killing blocking threads, and adding proper indexes to the locked table.
The article chronicles the historical shift from low‑level functions through object‑oriented, interface‑driven, and component‑based designs to WebServices, microservices, and finally serverless cloud‑native applications, highlighting key industry milestones, Amazon's architectural principles, and the role of DevOps, Docker, and Kubernetes.
This guide walks you through installing Docker on CentOS 7.6 and deploying a complete mall stack—including MySQL, Redis, Nginx, RabbitMQ, Elasticsearch, MongoDB, and a SpringBoot service—inside Docker containers, configuring volumes, ports, firewalls, and testing the APIs.
This article explains how a high‑traffic advertising team designed and implemented a centralized configuration center using Consul, Consul‑Template, SaltStack, and Docker Registrator, covering its architecture, service registration, publishing, access control, and monitoring in detail.
This week’s roundup covers two high‑severity Docker CVEs (CVE‑2019‑5021 privilege escalation in Alpine images and CVE‑2018‑15664 TOCTOU flaw in docker cp), Kubernetes moving to Go modules, new Envoy request‑mirror and route‑debug features, Knative’s stateful‑serverless experiment, Istio 1.0 EOL, Cilium’s BPF‑based network policy, and emerging Service Mesh trends, all with reference links for deeper reading.
This guide walks you through installing Docker on Linux, adding the Docker repository, installing the engine, and mastering the most common Docker commands for managing images and containers, including searching, pulling, running, inspecting, and cleaning up resources.
This article details the two‑year evolution of 58 Group’s container cloud platform, describing its background, overall architecture, network and service‑discovery advancements, operational challenges, and lessons learned from migrating over 90% of the company’s traffic to a Docker‑Kubernetes‑based cloud environment.
Facing scaling and resource‑management limits of a legacy Java‑centric ops platform, a team rebuilt their deployment system from 2018 onward, adopting Docker, Kubernetes, Prometheus, and kube‑router, while ensuring seamless migration for thousands of services and addressing networking, memory, and debugging challenges.
This guide walks you through Docker fundamentals, its container‑based virtualization, installation on Windows and Ubuntu, architecture components, image concepts, and a hands‑on workflow that covers pulling, running, building, and pushing images, all illustrated with clear examples and diagrams.
This article explains the fundamentals of Linux control groups (cgroups), their components and hierarchy rules, and demonstrates how to create, configure, and apply cgroups for resource limiting in containers using shell commands, Docker, and Kubernetes.
This comprehensive guide introduces Docker’s origins, core concepts such as images, containers, and registries, explains installation on major platforms, demonstrates essential commands, shows how to run and manage containers, and walks through creating, tagging, pushing, and importing custom images using Dockerfile.
This tutorial walks you through installing Graylog with Docker‑Compose, configuring it for Spring Boot, and routing Logback and Log4j2 logs to Graylog, while also comparing Graylog to the ELK stack and providing source links for the full projects.
This article explains the core concepts of container technology—including specifications, runtimes, management tools, image definitions, registries, and container operating systems—while illustrating why containers are advantageous for developers and operations teams in modern software delivery.
This article explains the fundamentals of Linux Cgroups, their role in container resource isolation, how to create and manage hierarchies, control groups, and subsystems, and demonstrates practical usage with Docker and Kubernetes for CPU and memory limits.
This tutorial walks you through installing essential tools on CentOS, setting up Docker CE, configuring kubelet and kubeadm packages, initializing a Kubernetes master node, joining worker nodes, installing Flannel networking, and troubleshooting common issues, providing all commands and configuration steps needed for a functional cluster.
This guide explains Docker's built‑in network drivers (bridge, none, host), shows how to inspect the default docker0 bridge, demonstrates creating a user‑defined bridge network, attaching containers with --network, and verifies connectivity with ping and IP inspection commands.
This guide compiles must‑read books and tutorials on Spring, Spring Boot, MyBatis, MySQL, Linux, Elasticsearch, MongoDB, Docker and related tools, helping developers quickly acquire the knowledge needed to build and deploy a complex e‑commerce mall application.
The Mall project is a comprehensive e‑commerce solution featuring a front‑end storefront and back‑office management, implemented with Spring Boot, MyBatis, and a suite of modern technologies such as Redis, Elasticsearch, RabbitMQ, Docker, and more, offering modules for products, orders, marketing, and analytics.
This article explains how to transform a traditional monolithic setup into a fully automated, cloud‑native microservice architecture using Docker containerization, Consul for service discovery and configuration, and HAProxy for dynamic DNS‑based routing, detailing the challenges, solutions, and practical configuration examples.
An Alibaba Cloud expert walks through a rare Kubernetes node NotReady issue, detailing how PLEG failures, Docker daemon stack traces, runC’s D‑Bus interactions, and a systemd cookie overflow combine to stall nodes, and explains the debugging steps and eventual fix.
This comprehensive guide explains what Docker is, its key concepts, advantages, installation steps, essential commands, container lifecycle, image customization with Dockerfile, registry usage, and practical examples for building and deploying containerized applications on Linux.
This article explains why Docker solves traditional development environment problems, compares it with virtual machines, introduces Docker basics, Dockerfile syntax, Docker Compose for multi‑service orchestration, and highlights related CI/CD and cloud‑native benefits, providing useful resources and examples.
An extensive, step‑by‑step roadmap guides aspiring backend developers through language selection, tooling, best practices, security, databases, testing, frameworks, APIs, authentication, messaging, containers, and more, combining practical exercises and visual diagrams to build a modern backend skill set.
This guide walks through building a Docker image, logging into Docker Hub or Alibaba Cloud Registry, tagging the image, pushing it to the remote repository, pulling it back, and also covers basic BusyBox usage, USTC mirror setup for Docker, and fast installation of Docker‑Compose.
This article explains how to transform a traditional monolithic deployment into a fully automated micro‑services environment by containerizing services, using Consul for dynamic service discovery and configuration, and configuring HAProxy with DNS resolvers to achieve seamless load balancing and zero‑downtime updates.
This article details a front‑end engineer's journey of containerizing a static‑site project with Docker and Kubernetes, addressing node_modules caching, oversized images, and complex deployment workflows, and presents three optimizations—caching dependencies, shrinking base images, and using multi‑stage builds—that cut image size to 25 MB and halve CI build time.
This article examines how small configuration errors in Docker‑based CI pipelines, especially when using services like AWS CodeBuild and Docker‑in‑Docker, can expose severe security risks, demonstrates real‑world attack steps, and provides practical mitigation strategies to harden the build process.
This article reviews a decade‑long evolution of backend engineering—from early LAMP stacks to modern micro‑services, middleware, cloud, big data, AI, and containerization—explaining why new developers need to understand each layer's role in today’s complex internet systems.
This guide walks through the complete process of preparing a Windows Server 2016 host, enabling Hyper‑V and RRAS, installing Docker EE, configuring a transparent Docker network, and joining the node to a Kubernetes 1.9 (or 1.14) cluster, including all required commands and troubleshooting steps.
This guide walks readers through Docker fundamentals, covering both operations and development perspectives, including installing Docker, managing images and containers, executing commands, connecting to running containers, building images from Dockerfiles, and deploying simple web applications on Linux and Windows environments.
The article examines why seemingly outdated technologies such as SQL remain valuable, critiques the overhyped promises of TypeScript and Docker, and urges developers to balance new trends with proven fundamentals for sustainable software engineering.
This comprehensive guide introduces Docker’s origins, core concepts such as images, containers, and registries, walks through installation, daemon configuration, essential commands, building and managing images, running containers interactively or in background, and explains import/export, tagging, and repository usage, providing practical examples throughout.
This article provides a comprehensive introduction to container technology as a PaaS solution, explaining Docker's core principles, the role of Linux namespaces and cgroups, comparing containers with virtual machines, and discussing both the advantages and limitations of container-based deployments.
This article introduces containers as a PaaS solution, explains Docker's underlying namespace and cgroup mechanisms, compares containers with virtual machines, and outlines their main technologies, advantages, and common pitfalls for developers.
This open‑source project offers a Spring Cloud Finchley‑based RBAC permission system using Spring Security OAuth2, a data‑driven Element‑ui front‑end that works without Vue experience, and full container support (Docker, Kubernetes, Rancher2) plus production‑ready lambda, Stream API and WebFlux examples, with detailed dependency listings and contribution guidelines.
This article details the adoption of NodeJS and the Egg framework for front‑end/back‑end separation, covering SSR considerations, directory planning, scheduled tasks, error handling, service design, custom logging, Elasticsearch integration, and Docker deployment, offering practical insights and best‑practice recommendations for backend development.
This article details how NetEase Games implemented non‑stop maintenance for large‑scale online titles by reusing resources with Docker virtualization, evaluating Calico and Flannel overlay networks, and building a custom SDN solution, ultimately improving operational efficiency and player experience.
This article introduces DBLE, an enterprise‑grade open‑source distributed middleware, and provides a step‑by‑step Docker‑Compose quick‑start tutorial covering download links, prerequisite installations, container launch, connection details, cleanup commands, and how to customize the configuration with custom scripts.
This article introduces the direnv tool and demonstrates how to isolate and automatically load environment variables for different Docker‑based development, testing, and staging setups, reducing manual exports and streamlining multi‑environment workflows on a single machine.
The DBLE 2.19.01.0 release introduces Docker images, new management commands, attribute enhancements, query plan optimizations, and numerous bug fixes—including issues with RocksDB cache, complex joins, and global table handling—while providing download links, documentation, and community support resources.
This article explains how container technology, inspired by physical shipping containers, provides lightweight, standardized, and portable application packaging, details the underlying Linux namespace and cgroup mechanisms, compares containers with virtual machines, and introduces major orchestration platforms such as Kubernetes, Mesos, and Swarm along with their key features and challenges.
This tutorial explains how to create a Docker image that combines Python, Node.js, pipenv, and pm2, push it to Docker Hub, and set up automated builds linked to a GitHub repository for continuous integration and deployment.
This article explains how to configure Spring Boot Actuator to export metrics to InfluxDB and Prometheus, covering Docker setup, Micrometer dependencies, application properties, sample controller code, test data generation, and visualisation with Grafana.
The article presents a detailed critique of Docker, arguing that despite its marketed benefits of portability, security, and resource management, its design introduces significant complexity, hidden costs, and operational risks that many organizations overlook when adopting it for production workloads.
This tutorial walks you through preparing the environment, downloading required packages and images via domestic mirrors, configuring Docker and the network, installing Kubernetes 1.6 with kubeadm, and deploying Flannel and the Dashboard, all tailored for Chinese cloud providers.
Zhihu built a Docker‑based Jenkins Pipeline system that now runs over 3,000 jobs daily, offering low entry cost, high customizability, language openness, fast stable builds, and a highly available, extensible cluster while reducing debugging effort and enforcing quality standards.
This article explains the key differences between Linux containers and virtual machines, covering their design goals, resource usage, use‑case scenarios, security considerations, and how to choose the appropriate technology based on workload requirements and ecosystem support.
The article critically examines Docker’s promised benefits—portability, security, and orchestration—by highlighting design flaws, added complexity, vendor lock‑in, and the often‑overlooked costs of standardizing on containers, while contrasting them with simpler, script‑based deployment approaches.
This article walks through creating a complete CI/CD workflow for a Python service using GitLab CI, Docker‑based gitlab‑runner, unit testing, static code analysis with SonarQube, service containers for Redis and MongoDB, and deployment steps, providing all necessary configuration files and commands.
A frontend team created a Docker‑based Express API to serve a shared navigation header, then tackled slow responses, UDP metric crashes, uncaught exceptions, Express error handling quirks, and static‑file performance bottlenecks, ultimately achieving stable sub‑second latency.
This article provides a clear, beginner-friendly overview of cloud computing, explaining core terms such as IaaS, PaaS, SaaS, virtualization, hypervisors, OpenStack, containers, Docker, and Kubernetes, and illustrating how these technologies interrelate to form modern cloud infrastructure.
This guide walks you through three practical ways—using SSL For Free, the acme.sh script, and a Docker container—to obtain free 90‑day Let’s Encrypt certificates, configure DNS verification on Alibaba Cloud, automate renewal, and integrate the certificates into Nginx for secure HTTPS access.
This guide outlines host planning for a master and two worker nodes, specifies CentOS, Docker, and Kubernetes version requirements, and provides step‑by‑step deployment instructions—including image download, network initialization, Flannel setup, and verification of pod and node status—illustrated with diagrams and screenshots.
This article provides a step‑by‑step guide on installing nvidia‑docker2, configuring the NVIDIA container runtime, setting up the GPU device plugin on a Kubernetes cluster, and deploying a GPU‑enabled pod to demonstrate proper GPU scheduling and usage.
This article explains the design shortcomings of the original nvidia-docker, introduces the architecture and components of nvidia-docker 2.0—including the NVIDIA container runtime, libnvidia-container, and their integration with Docker and containerd—and details the container creation flow for both standard and GPU-enabled workloads.
This article introduces Docker, explaining its purpose as an open‑source container engine, how it differs from traditional virtual machines, its advantages such as lightweight isolation and portability, its role in microservices, and provides step‑by‑step installation and common command examples for getting started.
This comprehensive guide explains how to design and implement functional tests for a Spring Boot microservice using Docker containers, REST‑Assured, WireMock, and Testcontainers, covering architecture, code examples, test configuration, and best practices for maintainable black‑box testing.
This guide explains how to configure Jenkins with dynamically generated slave nodes on OpenShift, integrate Kubernetes settings, and provides Dockerfile and startup script details to ensure reliable CI/CD pipelines in a cloud‑native environment.
This article provides a comprehensive introduction to Docker, explaining container concepts, differences from virtual machines, core components like images and repositories, and detailed step‑by‑step commands for installing Docker, pulling and managing images, creating and running containers, committing changes, pushing to registries, and using Dockerfiles to build custom images for various services.
This guide explains how to use the Pumba tool to emulate network latency and packet loss for Docker containers, covering the underlying netem commands, required dependencies, step‑by‑step examples for delay and loss scenarios, and tips for integrating the simulations into microservice testing pipelines.
Since Docker’s 2013 debut and the rise of microservices, many adopt containers without understanding their true advantages; this article explains Docker’s core benefits—lightweight isolation, portability, and efficiency—illustrating why it fits microservice architectures and highlighting common misuse pitfalls.
The article revisits the early days of physical server deployments and virtualization, explains how containers emerged as a lightweight alternative to VMs, discusses their security trade‑offs, and promotes a DevOpsLIVE event on Windows‑Linux containers and Azure Kubernetes.
The article presents a comprehensive 2018 DevOps Engineer roadmap that outlines essential skills—from programming languages and Linux fundamentals to networking, security, containerization, CI/CD, monitoring, and cloud platforms—and pairs each topic with curated online courses to guide aspiring DevOps professionals.
The article explains Docker’s rapid rise, clarifies the distinction between Docker and containers, compares containers with virtual machines, and describes why Docker simplifies application deployment, while also noting a related DevOps live‑stream event and promotional details.
This guide shows Windows users how to replace painful pip installations and VM setups by running an Ubuntu Docker container, installing essential tools and Python, customizing Vim, and committing a reusable image for seamless Python development.
This article presents a curated list of fundamental and advanced tools—including JIRA, Git, Jenkins, Selenium, Groovy, Spock, Maven, Gradle, Docker, and Linux—that Java developers with any experience level should master to improve productivity, testing, build automation, and deployment.
This article explains how to construct a Dev platform that supports both traditional enterprise delivery and internet‑centric business models, detailing the Dev stages (Code, Build, Assemble, Deploy, Monitor), their objectives, required tooling, and the architectural patterns needed for automated microservice packaging and deployment.
This guide presents practical Dockerizing techniques—including choosing lightweight base images, installing only necessary packages, handling file permissions, defining user privileges, exposing ports, configuring entrypoints, externalizing data, and managing logs—to help developers build secure, efficient container images.
This article details the practical steps to install nvidia-docker2, configure Docker’s runtime, enable GPU support via Kubernetes device plugins, and verify GPU scheduling on a large Kubernetes cluster, providing code snippets and best‑practice recommendations for production environments.
This article provides a comprehensive overview of the Docker ecosystem, tracing its historical milestones, detailing various container technologies, explaining key Docker components and concepts, and illustrating the evolution of Docker through diagrams and the Moby project.
This article provides a comprehensive overview of Docker’s ecosystem, tracing its roots from early container technologies like chroot and FreeBSD Jails through Docker’s own components, key concepts such as libcontainer and OCI, and the evolution into the modular Moby project with related tools such as containerd, Linuxkit, and Infrakit.
This article explains what legacy applications are, why containerizing them with Docker simplifies deployment, outlines the benefits, compares alternatives, and provides step‑by‑step instructions—including Dockerfile creation, startup scripts, image publishing, and deployment considerations such as init processes, volume permissions, and database migration.
This article traces the explosive rise of Ajax, the browser wars that drove compatibility hacks, the myriad challenges front‑end engineers face today, and how modularization, bundling, automation, and Docker have transformed web development into a highly engineered, scalable practice.
This article provides a comprehensive tutorial on Docker's advanced security mechanisms, covering user namespace isolation, SELinux integration, PID limiting, and various kernel security tools, complete with command‑line demonstrations and configuration details for secure container deployments.
This guide explains how to deploy Sysdig Falco on Docker, configure its rules, and demonstrate detection of four common container security threats—including interactive shells, unauthorized processes, writes to non‑user directories, and sensitive mounts—using real‑world examples and log analysis.
This article explains why service discovery is essential for microservice architectures, dives into Consul’s internal mechanisms—including multi‑datacenter gossip, Raft consensus, and client‑server roles—then provides step‑by‑step Docker deployment, service registration, health‑check configuration, and practical discovery methods via HTTP API and DNS.
This article examines common Docker image attack methods, evaluates popular scanning solutions such as Clair, Anchore, OpenSCAP and Harbor, and provides practical guidance for integrating image security into CI/CD pipelines and enterprise deployments.
Naftis is an open‑source web dashboard for Istio that lets users define custom task templates, manage services, view topology and metrics, and provides step‑by‑step Kubernetes deployment instructions, Docker images, and a complete developer guide for building and running the platform.
The article outlines Ping An Cloud’s container service platform, describing its positioning, multi‑tenant design, architecture, key components such as CaaS portal, Docker Server, Rancher orchestration, networking, storage, logging, monitoring, and discusses the technologies and implementation choices behind each layer.
This article compiles a comprehensive set of Ant Financial interview questions covering Java fundamentals, data structures, concurrency, JVM internals, Spring framework, Tomcat, Docker, Dubbo, MySQL sharding, and messaging middleware, providing candidates with a detailed study guide for multiple interview rounds.
This article explains how Docker works on Windows, covering boot2docker, Docker for Windows, native Windows containers, their architecture, image options, licensing, and how developers can leverage both Linux and Windows container formats for modern cloud‑native deployments.
Although Docker’s libnetwork/CNM offers a network plugin model, Kubernetes has chosen not to adopt it due to fundamental design mismatches, reliance on low‑level key‑value stores, security and scalability concerns, and a strategic shift toward the simpler, more portable CNI plugin framework.
This guide catalogs over fifty essential Docker‑related tools—including orchestration platforms like Kubernetes and Swarm, CI/CD services such as Jenkins and GitLab, monitoring solutions like Prometheus, logging utilities, security scanners, storage plugins, and networking options—helping developers, DevOps, SREs, and architects select the right solution for each stage of container development.
This article introduces Docker, explains its origins, core concepts such as images, containers, and registries, demonstrates installation, common commands, building custom images, managing containers and images, and highlights its advantages in speed, resource efficiency, and portability for modern development workflows.
Embracing containers reveals their immutability, lightweight nature, and rapid startup, but to fully leverage these benefits you must follow ten essential do‑not‑do rules covering data storage, image size, layering, security, and process management for reliable, reproducible deployments.
This guide walks through Logstash fundamentals, from creating basic pipelines with input, filter, and output sections to using common plugins such as grok, mutate, date, geoip, multiline, and integrations with NGINX, rsyslog, Redis, and Docker‑based Logspout, providing practical configuration examples and command‑line tips.
This article explains Docker's origins, core architecture, major advantages over traditional virtualization, notable limitations, the problems it solves for DevOps, and key security considerations for deploying containers in cloud environments.
This article explains Docker’s core components—images, containers, and repositories—then breaks down its comprehensive architecture, detailing the roles of the client, daemon, server, engine, jobs, registry, graph, drivers, libcontainer, and containers, helping readers grasp the full lifecycle of Docker.
This article explains how to use Docker to containerize both the TFS continuous‑integration workflow and the TFS build agent, providing step‑by‑step commands for customizing Docker images, configuring agents, and handling authentication, followed by a brief recruitment notice for DevOps engineers.
This article examines Youzan's journey to containerize its development and testing environments using Kubernetes and Docker, detailing the motivations, architectural decisions, network and isolation challenges, image integration, logging, load balancing, debugging, and the ongoing rollout to standard production environments.
This article introduces the open‑source BI platform Redash, outlines its wide‑range data source support and visualization capabilities, and provides step‑by‑step Docker‑Compose installation instructions along with practical usage tips for building dashboards.
