This article presents a concise Dockerfile template, explains how to build efficient images by minimizing layers, leveraging caches, using multi‑stage builds, and addresses common pitfalls such as over‑caching, proper use of ARG/ENV, COPY vs ADD, and CMD/ENTRYPOINT configurations.
The study traced severe Redis latency spikes in an 8‑core container to the Go runtime mistakenly reading the host’s CPU count, which created hundreds of threads and scheduler contention; limiting GOMAXPROCS to the container’s quota eliminated the jitter, while further gains were suggested by reducing HMGET calls, tuning GC, and upgrading Go.
This roundup highlights major cloud‑native developments, including AWS re:Invent 2019 announcements such as SageMaker Operators for Kubernetes and EKS on Fargate, the 2020 KubeCon Europe schedule, Rancher 2.3.3 release, upstream Kubernetes enhancements, and a curated list of essential open‑source projects and reading recommendations for practitioners.
This article presents a detailed case study of intermittent container timeout problems in a Kubernetes environment, examining kernel upgrades, NUMA configurations, CPU affinity bindings, kubelet behavior, cadvisor overhead, and hardware faults, and outlines the investigative steps and solutions applied.
This article explains how lxcfs uses FUSE and cgroup technology to isolate /proc and /sys files inside containers, showing the implementation details of cpuonline and loadavg handling, and includes key source code snippets that illustrate the isolation mechanism.
This article introduces Linux Containers (LXC) as the predecessor of Docker, explains Docker's definition, advantages, and architecture—including client, daemon, server, engine, job, registry, graph, driver, libcontainer and container modules—and provides practical commands for installation, image management, container execution, and troubleshooting.
This article shares a DevOps engineer's practical experience of deploying a container‑based build resource pool on OpenShift, managing an artifact repository, and optimizing Jenkins shared libraries with parameterized pipelines to improve CI/CD efficiency and reliability.
This guide walks you through installing Kong API gateway and its open‑source management UI Konga using Docker, covering network creation, database selection, container configuration, migration, verification, and final UI access, all with clear commands and examples.
This article explains fundamental Kubernetes concepts—including containers, pods, nodes, namespaces, services, and labels—highlighting their roles, characteristics, and how they enable lightweight, portable, and efficiently managed cloud‑native applications.
This article explains how Alibaba's New‑Retail Business Framework (NBF) implements a non‑typical FaaS architecture that delivers full Serverless capabilities—including containerized bundle management, service publishing, routing, fault tolerance, millisecond‑level auto‑scaling, and rapid rollback—proving its reliability during large‑scale promotional events.
This document provides a detailed, chapter‑by‑chapter guide to Jenkins, covering its fundamentals, installation on various platforms, management, integration with tools, pipeline creation for frontend, backend, and mobile projects, as well as container deployment and monitoring solutions.
This tutorial walks through configuring a GitHub project, creating a Dockerfile, setting up Docker Hub builds, and using Tekton Pipelines to deploy container images to an OpenShift cluster, illustrating each step with screenshots and practical tips for resolving image download errors.
This article compares three container alerting frameworks—Alertmanager, Kapacitor, and Bosun—explains why Bosun was chosen for its flexible HTTP API rule deployment and low learning curve, and provides step‑by‑step configuration, rule definition, notification, and templating examples for integrating Bosun with Prometheus.
This article explores cache fundamentals, common pitfalls like penetration and avalanche, naming conventions, warm‑up techniques, and provides step‑by‑step guidance for setting up Redis master‑slave, testing containers, and optimizing configurations for high‑performance backend systems.
This article uses a humorous pet‑store story to illustrate how code that runs flawlessly on a developer’s machine can fail in production, then explains Docker’s role in eliminating environment differences by packaging applications and their dependencies into portable containers, comparing it with traditional virtual machines and detailing core concepts, architecture, Dockerfile instructions, and essential commands.
This article presents ten practical Dockerfile best‑practice tips—including ordering instructions, precise COPY usage, merging RUN commands, minimizing dependencies, cleaning package caches, leveraging official and minimal base images, clear tagging, multi‑stage builds, and consistent build environments—to help developers create smaller, faster, and more maintainable container images.
This article explains Docker's core concepts—including the union file system, the distinction between images and containers, the structure of read‑only and read‑write layers, and detailed explanations of common Docker commands such as create, start, run, ps, images, and more—providing a comprehensive guide for developers to master container technology.
This article explains the background of Linux cgroups, outlines the key differences between v1 and v2—including the unified hierarchy, controller handling, and new control files—and provides practical commands and examples for using cgroups v2 in container environments.
In a May 25 Tencent salon, senior engineer Han Xin traced cloud‑computing’s shift from monolithic J2EE to container‑based microservices, explained service‑mesh and middle‑platform concepts, and showcased Tencent Service Framework’s governance, DevOps and reusable capabilities, emphasizing that simple, fast architectures must directly serve business value.
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.
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 article explores the evolution of operations roles, presents detailed skill maps for system, web, big‑data, and container operations, explains essential log types, and outlines ELK‑based architectures and big‑data‑driven monitoring practices for building a robust, future‑proof operations platform.
This article explains the fundamentals of Linux control groups (cgroups), their components and relationships, and provides step‑by‑step guidance on creating hierarchies, mounting, configuring subsystems, and applying cgroup limits to Docker and Kubernetes containers.
The article explains cloud computing’s three service models—IaaS, PaaS, and SaaS—while highlighting how container technologies like Docker and Kubernetes have transformed the PaaS layer into a mainstream “container cloud,” driving faster deployments, DevOps convergence, and rapid market growth predicted to double by 2022.
At CNIC2019 in Beijing, the Cloud Native Industry Alliance was launched with Tencent Cloud joining as a founding council member, its TSF microservice platform earning Trusted Cloud certification, and its serverless experts showcasing rapid 100‑million‑user mini‑program deployment while highlighting remaining cold‑start and orchestration challenges.
The article explains that a true technical middle platform is not just a set of tools or cloud‑native services but a business‑focused, organization‑wide foundation, and outlines six construction pillars—container cloud virtualization, comprehensive microservice framework, abstracted technical components, shared basic services, value‑driven DevOps/AIOps, and a dedicated efficiency team—to enable rapid change, innovation, and operational excellence.
The article explains how Kubernetes has become the default platform for cloud‑native infrastructure, why Serverless and diverse application services are emerging as key trends, and how a clear definition of cloud‑native drives large‑scale technology upgrades in Chinese public‑cloud markets.
This article breaks down Tomcat’s modular architecture, detailing the relationships and functions of Server, Service, Connector, Container, Engine, Host, Context, and Wrapper, and explains how the Pipeline‑Valve mechanism processes requests from start to finish.
This tutorial walks you through creating a simple Inversion of Control (IoC) container in JavaScript, covering basic dependency injection, adding caching for singleton instances, and extending the container to load arbitrary classes automatically, all with clear code examples.
This article describes how Zhaozhuan built an automated, business‑transparent log‑collection solution for its container cloud platform by evaluating several approaches, adopting Alibaba Cloud's open‑source log‑pilot, customizing its deployment, and addressing practical issues such as time‑zone bugs, latency, and duplicate collection.
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 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.
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 guide presents essential Docker log techniques—including displaying all logs, real‑time streaming, tailing, time‑based filtering, combining options, and redirecting output to files—to help developers quickly troubleshoot containerized applications.
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.
Since its launch in 2016, JD's J-one unified release platform has evolved through multiple large‑scale promotions, introducing container‑based compilation, auto‑scaling, and a new image‑deployment capability that dramatically speeds up releases while improving success rates and providing a suite of automation tools for developers.
The 2018 Cloud Native Best Practices Summit in Beijing gathered over 200 industry leaders and experts who shared insights on cloud native trends, standards, Kubernetes, service mesh, product launches, and the formation of the Cloud Native Practice Alliance, marking a milestone for China's cloud native ecosystem.
PouchContainer, Alibaba's open‑source rich‑container engine, delivers strong isolation, high portability, and low resource usage, enabling enterprises to rapidly containerize legacy workloads while preserving existing operations and unlocking cloud‑native benefits at massive scale.
The article explains the various storage methods for container cloud platforms, highlights why storage is critical for data safety and business continuity, and outlines key factors such as persistent data needs, performance, scalability, and product selection for cloud‑native environments.
This article explains Tomcat's modular top‑level architecture, detailing how a single Server contains multiple Services, each Service pairs a Connector with a Container, and how these components interact through server.xml configuration, request handling pipelines, and Valve chains.
This article explains Tomcat’s overall architecture, detailing the relationships among Server, Service, Connector, and Container, and describes how requests flow through ProtocolHandlers, Pipelines, and Valves to reach servlets and return responses.
This article examines how seemingly minor Docker configuration errors in CI/CD pipelines—especially within AWS CodeBuild and Docker‑in‑Docker setups—can expose severe security risks, demonstrates practical attack techniques, and offers concrete mitigation steps to harden the build environment.
This article shares JD.com’s extensive experience redesigning Kubernetes for massive production use, covering custom DNS and load‑balancing, scaling clusters to ten‑thousand nodes, adapting controllers, building the Archimedes scheduler, and practical insights on resource isolation, deployment, and high‑traffic elasticity.
This article explores Tomcat’s modular design, detailing the roles of Service, Connector, Container, Server, and Lifecycle interfaces, and illustrates how requests flow through the servlet engine with code examples and component diagrams.
This tutorial explains how to use Docker images as a portable desktop operating system by building a custom image, configuring mkinitcpio‑docker‑hooks, preparing the kernel and initramfs, and setting up the boot manager to launch the system directly from the Docker layer.
This guide walks through preparing an Alibaba Cloud ECS Linux 7.4 instance, installing Docker CE, verifying the installation with a hello‑world container, pulling the GitLab CE image, configuring and running the GitLab container, and troubleshooting common issues such as port conflicts and memory limits.
This tutorial walks through setting up Docker on an Ubuntu VM, configuring user permissions, pulling a tutorial image, installing SSH, committing the container, and finally deploying Tomcat inside the container with port mappings, providing a complete hands‑on example of container‑based PAAS.
This article introduces Docker Compose, explains how to define a project with multiple services such as a web app and Redis, details common configuration options, and shows how to start, manage, and scale containers in a single‑host environment before mentioning future coverage of Swarm and Kubernetes.
This article details the log‑collection difficulties inherent to containerized workloads on the 360 HULK cloud platform and explains how a custom log‑controller, together with Logstash, Qconf, and Qbus2.0, provides dynamic, loss‑free, and source‑aware logging for Kubernetes clusters.
This article introduces Play‑with‑Docker, a browser‑based sandbox that lets users instantly create Docker servers, use an integrated SSH client, automatically map ports, and deploy multi‑node Swarm clusters without installing anything locally, providing a fast, hands‑on way to learn Docker fundamentals.
Starting from version 0.3.0, PouchContainer integrates the open‑source LXCFS FUSE filesystem to isolate /proc views inside containers, allowing existing monitoring and deployment tools to read container‑specific metrics without modification, and the article details the use cases, command‑line integration, and stability improvements.
This article summarizes Red Hat's cloud‑native container design principles, explains each rule—from single concern to runtime confinement—shows how they extend classic software design concepts, and provides practical best‑practice tips and reference links for building resilient, observable, and immutable containerized applications on Kubernetes.
This article compiles over 60 top open‑source DevOps tools—from version control systems and build automation to CI/CD platforms, container runtimes, configuration managers, monitoring solutions, and log collectors—providing concise descriptions to help engineers streamline automation, deployment, and operations workflows.
This article breaks down Tomcat’s modular architecture, explaining how a single Server contains multiple Services, each pairing Connectors and a Container, and details the inner workings of Connectors, Containers, and their pipeline‑Valve processing to help developers master Tomcat internals.
This tutorial explains how to configure the spotify/docker-maven-plugin in a Spring Boot project's pom.xml, build Docker images with Maven commands, run containers, optionally use a custom Dockerfile, push images to DockerHub, and bind the build goal to the Maven package phase for automated container creation.
This article provides a detailed, curated list of the most popular Docker‑related tools across categories such as orchestration, CI/CD, monitoring, security, storage, networking and management, including brief descriptions, official links and cost information to help developers, DevOps engineers and platform architects choose the right solutions for every stage of the container lifecycle.
This article breaks down Tomcat’s modular architecture, explaining the roles and interactions of Server, Service, Connector, and Container components, and illustrates how requests flow through the system using detailed diagrams and a step‑by‑step analysis of the underlying pipelines.
This comprehensive guide explains how to install Docker CE on Ubuntu, manage system requirements, uninstall old versions, configure repositories, verify installation with the hello‑world image, manage Docker as a non‑root user, remove Docker, and customize images using docker commit and Dockerfiles, including best practices for building efficient multi‑layer images.
At the 2017 Hangzhou Cloud Expo, Alibaba announced the open‑source release of its internally‑developed container runtime Pouch, detailing its seven‑year evolution, unique security and scalability features, collaborations with Zhejiang University, and the company’s strategy to foster an ecosystem‑driven, standards‑focused container technology future.
The article details 58's private cloud platform built on container technology, explaining the motivations, overall architecture, and core module designs such as container management, network model, image repository, logging, and monitoring, illustrating how Docker and Kubernetes enable efficient resource utilization, rapid scaling, and streamlined deployment.
At iQIYI, the author led a private‑cloud platform built on Mesos and Chronos that runs millions of weekly containers for transcoding and analytics, then layered a feature‑rich PaaS called QAE on Marathon, highlighting IaaS vs PaaS benefits and outlining future micro‑service, GPU, and scaling enhancements.
The OSCON 2017 conference in Austin featured Huawei’s extensive open‑source showcase, including talks on ecosystem growth, serverless micro‑service orchestration, unified storage with OpenSDS, network simplification via iCAN, and Go‑based DevOps orchestration, plus demos of OpenStack and developer ecosystem solutions.
This article details Meituan Cloud's journey from virtual machines to Docker containers, explaining why the shift was needed, the technical challenges faced, the implementation steps, and the measurable performance and cost benefits achieved through containerization.
The article details Vipshop's two‑year PaaS implementation on Kubernetes, covering the CI/CD pipeline, custom networking, Docker registry enhancements, logging and monitoring solutions, as well as the operational challenges and fixes encountered during the migration.
This tutorial explains how to install Docker and MyEclipse, create a Dockerfile for a Tomcat 7 image, build and run the container, deploy a Spring Shopping Cart example inside it, and use MyEclipse features to manage and test the Dockerized web application.
This article details Alibaba's large‑scale migration of core transaction services from traditional VM and proprietary T4 containers to a unified Docker‑based platform called AliDocker, covering integration challenges, image‑based deployment, Swarm customizations, and middleware Dockerization that enabled seamless double‑11 operations.
This article compiles a curated list of Chinese-language Docker learning materials, including official documentation, systematic tutorials, community sites, curated GitHub repositories, and personal article recommendations to help beginners and intermediate users master container technology.
The 2016 Global Agile Operations Summit in Shanghai concluded with a series of expert sessions covering agile DevOps trends, cloud‑native automation platforms, database performance tuning, container orchestration, and real‑world case studies from leading companies, followed by the award ceremony honoring ten MVPs who drove innovation across operations and infrastructure.
This guide walks you through manually setting up a Minecraft server on a Linux container and then automating the process with a Dockerfile on NetEase Hive, covering required tools, server files, Dockerfile details, and runtime configuration for a smooth gaming experience.
The article examines how Docker‑based container technology can be standardized and applied in enterprises to improve resource utilization, streamline software delivery, and create competitive advantages, while also discussing ecosystem standards, selection criteria, and the broader impact on modern IT development.
This guide walks through fundamental Docker commands for inspecting Docker versions, managing images, running and inspecting containers, committing changes, handling container lifecycle, saving/loading images, logging into registries, and publishing images to a registry.
Learn how to quickly set up a multi‑node Hadoop cluster on a single machine using Docker containers, covering image preparation, SSH configuration, fixed IP assignment with pipework, and building custom Hadoop images, enabling a lightweight, cost‑effective big‑data environment for development and testing.
This article provides a comprehensive overview of Apache Tomcat's modular architecture, detailing the roles and interactions of Connectors, Containers, Services, Servers, and the Lifecycle interface, while illustrating key implementation classes and code snippets that govern request handling and component management.
This article provides a comprehensive overview of Docker's technical architecture, detailing its key modules such as the client, daemon, server, engine, job system, registry, graph, driver, libcontainer, and container components, and explains how they enable isolation, resource management, networking, and continuous deployment in modern DevOps workflows.
This article explains Docker’s architecture, focusing on the role of the AUFS union file system in image layering, storage drivers, and how containers share and update layers to achieve efficient deployment and storage management.
This article shares the author’s multi‑year experience in cloud computing, covering the evolution of cloud platforms, the relationship between microservices and DevOps, the design of a Kubernetes‑based DevOps platform, and practical lessons for enterprise‑level adoption.
The Beijing OpenStack Days event on July 14‑15, sponsored by Huawei, gathered over 2,000 attendees and featured key speeches on Open Cloud, distributed data‑center challenges, and OpenStack container projects, while showcasing FusionCloud solutions and upcoming technical sessions.
Learn how to quickly set up an isolated MySQL 5.7.13 instance using Docker containers, covering environment installation, image pulling, container launch with port mapping, copying the MySQL package, installing inside Ubuntu, and connecting from the host, all without affecting existing services.
This guide walks through Linux Container (LXC) resource management, explaining how to control CPU, memory, and storage using cgroup commands, configuration files, and monitoring tools, with step‑by‑step examples and practical tips for efficient container operation.
This article, based on the Efficient Operations Community Talk, outlines the evolution of e‑commerce systems, the challenges faced during rapid growth, and how LeTV’s e‑commerce cloud leverages micro‑service architecture, container technology, and hybrid cloud solutions to address scalability, security, and operational efficiency.
This tutorial demonstrates how to containerize a Java web application with Docker, build and test it using Maven, create a custom Tomcat‑based image, push the image to Alibaba Cloud’s registry, and finally deploy the service through Alibaba Cloud Container Service.
Docker 1.10.2 has been officially released, bringing a series of fixes and enhancements across runtime, distribution, networking, volumes, and security components, along with updated download links for various platforms.
This article explains how to capture Docker container logs, discusses the challenges of multi‑line log correlation, and presents two approaches—client‑side parsing and server‑side parsing—along with a concrete Flume customization using a DockerLog Java bean.
This article explains the fundamentals of PaaS, its business value, technology choices, and provides a detailed walkthrough of Cloud Foundry’s architecture, components, deployment workflow, buildpacks, and extensibility options such as custom services, monitoring, scaling, and the Diego runtime.
The Ctrip Continuous Delivery Conference held on December 19 showcased industry experts discussing large‑scale deployment, container‑based delivery, mobile automation, and the MCD platform, highlighting practical strategies for high‑availability, rapid release pipelines across web and mobile services.
This article explains the differences between VM and Docker images, outlines Docker's build‑ship‑run workflow, and provides a step‑by‑step tutorial for setting up a secure private Docker Registry server with self‑signed certificates, user authentication, and client configuration.
This guide explains why Docker simplifies data‑science environment setup, walks through installing Docker, pulling ready‑made images, running a container with Jupyter Notebook, managing files, installing additional packages, and cleaning up, providing step‑by‑step commands for Windows, macOS, and Linux users.
This article provides a comprehensive analysis of Docker 1.2's architecture, detailing each module's function, the internal workflow of key commands, and how Docker's design enables lightweight, secure container virtualization for modern cloud‑native applications.
This article explains how Docker commit creates images from container changes, its relationship with docker build, the underlying mechanics of read‑write layers, important build considerations such as resource limits and return codes, and provides clear diagrams to illustrate the process.
This article compiles over 60 of the best open-source DevOps tools—including version-control systems, build automation, CI/CD platforms, container runtimes, configuration-management solutions, monitoring and logging utilities—to help developers implement efficient, automated, and scalable workflows without cost.
This article explains Linux cgroups—its subsystems, hierarchical structure, kernel implementation via VFS, mounting and configuration methods, and practical examples—showing how they provide fine‑grained resource control for processes and containers.
This guide explains how to configure Docker’s daemon to use DaoCloud’s Docker Hub Mirror on CentOS and Ubuntu, enabling dramatically faster image downloads by adding a registry‑mirror option, restarting the service, and verifying the speed with a test pull.
This guide explains how Docker data volumes enable file‑system sharing between containers and the host, covering volume concepts, mounting host directories, and using --volumes‑from to share data across multiple containers, with practical command examples and visual illustrations.
This guide explains Dockerfile fundamentals, breaking down its four sections, providing a complete example, and detailing each core instruction such as FROM, MAINTAINER, RUN, CMD, EXPOSE, ENV, ADD, COPY, ENTRYPOINT, VOLUME, USER, and WORKDIR for building Docker images.
Learn step‑by‑step how to download a CentOS base image, create a Dockerfile that installs and configures OpenSSH, build a new SSH‑enabled image, run the container with port mapping, and verify connectivity via an SSH client, turning a closed container into a remote‑accessible environment.
Learn how to install Docker on CentOS, start the service, pull the official Ubuntu image, and launch an interactive container to display a simple 'hello world' message, with step‑by‑step commands and screenshots illustrating each stage of the process.
This guide introduces essential Docker commands—from pulling images and managing containers to inspecting and removing them—providing clear examples and best practices for safely operating Docker on any system, including host file configuration, interactive sessions, background execution, and cleanup procedures.
