This guide walks through the inner workings of Zabbix Agent2’s Docker monitoring plugin, detailing how it communicates via the Docker API, the key configuration files, the query mechanism, and how to apply the provided templates to automatically discover and display container and image metrics.
This article provides a comprehensive guide to Portainer, covering its features, how to download the image, run it on a single Docker host, and manage Docker Swarm clusters with detailed commands, UI walkthroughs, and configuration steps.
This article introduces eleven noteworthy open‑source Docker utilities—including spug, ctop, Drone, docui, docker‑slim, docker_practice, lazydocker, dive, gochat, docker‑dashboard, and diving—detailing their GitHub locations, star counts, primary features, and typical use cases for container management, monitoring, CI/CD, and image optimization.
This article provides a detailed, step‑by‑step tutorial for installing Kubernetes v1.16.0 on CentOS 7 virtual machines, covering Docker‑CE installation, prerequisite system configuration, master and node setup, flannel network plugin deployment, and includes all necessary command‑line snippets and the full kube‑flannel.yml manifest.
This article provides a comprehensive guide to Docker, covering image concepts, UnionFS layering, image creation and loading principles, data volume usage, Dockerfile commands, building custom images, pushing to Alibaba Cloud, and deploying SpringBoot applications in containers.
This tutorial explains how to install Docker on CentOS, pull a Java image, create and configure a Spring Boot project, write a Dockerfile, build the Docker image with Maven, run the container, and view both console and Log4j2 file logs inside the container.
This comprehensive guide walks you through preparing hardware and network resources, setting up a private Git repository, installing Docker, Jenkins, Kubernetes, Helm, Baget, Harbor, and SonarQube, writing Dockerfiles and Helm charts, and configuring a Groovy Jenkinsfile to achieve a fully automated CI/CD workflow on a Kubernetes cluster.
This article explains Docker images as lightweight, executable software packages, describes the UnionFS layering mechanism, outlines image characteristics, shows how to commit images, use container volumes (including named, anonymous, and bind mounts), and provides step‑by‑step Dockerfile examples for building custom CentOS, Tomcat, and SpringBoot images as well as uploading images to Alibaba Cloud.
This article explains the background, challenges, and step‑by‑step process of privately deploying and extending CodeSandbox—including building a custom online IDE, configuring a private npm registry, modifying the packager service, adding screenshot and style‑injection features, and integrating with Bit for component sharing.
This tutorial walks through preparing the environment, installing Docker‑CE 18.09.9, configuring prerequisite settings, deploying Kubernetes v1.16.0 master and node components, initializing the cluster, retrieving join commands, and finally installing Flannel networking to achieve a ready‑state cluster on CentOS 7 virtual machines.
This tutorial walks through installing OpenResty, creating a simple hello‑world service, and implementing a practical Lua‑based request routing example that distinguishes single‑ versus multiple‑UID POST bodies, complete with Nginx configuration, Go backend code, and testing steps.
This step‑by‑step guide shows how to prepare five CentOS 7.5+ machines, configure hostnames, SSH keys, kernel upgrades, firewall and swap settings, set up Docker and Kubernetes repositories, install Docker, kubeadm, kubelet and kubectl, configure HAProxy + Keepalived for a VIP, initialize a multi‑master cluster, apply the Flannel network plugin, and verify the deployment with an Nginx pod and the Kubernetes dashboard.
This tutorial introduces Elasticsearch's core concepts, installation via Docker, index and document operations, query DSL, aggregations, and Chinese tokenization using the IK analyzer with custom dictionaries, providing step‑by‑step code examples for building a searchable log analysis stack.
This article explains how to construct a PaaS cloud platform using microservice architecture, Docker containers, and Spring Cloud components such as Zuul, Eureka, and Hystrix, covering service gateway, registration, fault tolerance, and dynamic configuration to enable rapid development and deployment.
This comprehensive guide explains Docker image fundamentals, the UnionFS layering model, image creation with Dockerfile, committing containers, using volumes (including MySQL and permission flags), building custom CentOS and Tomcat images, uploading to Alibaba Cloud Registry, and deploying SpringBoot applications, all with concrete commands and examples.
Version 3.20.09.0 of the open‑source DTLE data‑transfer component for MySQL has been released, introducing replication‑delay and memory‑usage monitoring with Prometheus, providing configuration examples and Docker commands, and fixing incremental serialization, CPU usage, and uppercase‑where clause handling.
This article explains why learning Linux commands can be overwhelming for beginners, introduces the open‑source Kmdr CLI tool that explains commands and their options directly in the terminal, and provides step‑by‑step installation and usage examples—including npm, Homebrew, and Docker approaches.
This article explains how Docker addresses environment‑configuration challenges, compares container technology with virtual machines, and outlines Docker’s advantages such as fast startup, low resource usage, image layering, isolation, rapid rollback, and lower deployment and management costs, while also discussing its remaining limitations.
Spug is an open‑source, agent‑less automation operations platform designed for small‑to‑medium enterprises, offering host management, batch command execution, online terminals, file transfer, application deployment, task scheduling, configuration, monitoring and alerting, with easy Docker installation and a rich web UI.
This tutorial walks you through preparing the environment, configuring Docker remote access, setting up a Spring Boot project in IDEA, creating Dockerfiles and Maven settings, building the image, running the container, and verifying the deployment via browser and logs.
When Dockerfiles grow too large they become hard to understand, can hide security flaws, cause Git conflicts, and bloat image size, so the article presents five refactoring techniques—including using official images, extracting dependencies, multi‑stage builds, sorting parameters, and proper tagging—to keep Dockerfiles small, clear, and secure.
A high‑traffic Java backend service suddenly suffered seconds‑long response times, prompting a systematic investigation that traced the issue from unexpected QPS spikes through database checks, local call delays, CPU load, and frequent ParNew GC, ultimately revealing oversized responses and memory pressure as the root cause.
This step‑by‑step guide shows how to prepare five CentOS 7 machines, configure hostnames, set up password‑less SSH, upgrade the kernel, disable firewalls and swap, tune sysctl, add Docker and Kubernetes repositories, install Docker, install kubeadm/kubelet/kubectl, configure HAProxy and Keepalived for a virtual IP, join master and worker nodes, deploy a flannel network plugin, and finally verify the cluster with an nginx pod and the Kubernetes dashboard.
This guide provides a step‑by‑step tutorial on downloading, installing, configuring, and starting Alibaba Canal and its adapter to achieve real‑time incremental data synchronization from MySQL binlog to destinations such as Kafka, including code snippets and configuration details.
This article introduces PowerJob, a next‑generation distributed scheduling and computation framework, explains why a central scheduler is needed in microservice architectures, and provides detailed installation, configuration, and code examples for setting up the server, worker, and tasks using Docker, MySQL, MongoDB, and Spring Boot.
This article explains how to design and implement a Docker container monitoring system using CAdvisor for metric collection, InfluxDB for time‑series storage, and Grafana for visualization, covering deployment, integration, common issues, and practical configuration details.
This guide explains what Canal is, its key features and limitations, the underlying binlog replication principle, and provides detailed, step‑by‑step instructions for downloading, configuring, and launching both Canal Server and Canal Adapter to achieve high‑performance real‑time data synchronization.
This comprehensive tutorial walks you through installing a multi-node Kubernetes cluster on CentOS 7.7, covering hardware prerequisites, network setup, Etcd deployment, certificate generation with cfssl, installation of Docker, configuration of master components, worker nodes, CNI networking, CoreDNS, and accessing the Kubernetes dashboard.
This tutorial walks through installing Docker, configuring remote access, creating a Spring Boot project, writing the necessary Dockerfile and Maven settings, building the image, and running the container, demonstrating how IDEA, Spring Boot, and Docker combine to simplify Java web deployment.
This article presents a comprehensive technical solution for a distributed online inference system that packages machine‑learning models in Docker containers, orchestrates them with Kubernetes for fault‑tolerant, elastic scaling, and integrates model repositories, image registries, monitoring, and automated model selection to streamline deployment, updates, and resource management.
In a recent attack, the cyber‑crime group TeamTNT leveraged the open‑source monitoring tool Weave Scope to silently control Docker and Kubernetes cloud environments without deploying malicious code, highlighting critical misconfigurations and the growing sophistication of cloud‑native threats.
Depending on network constraints like corporate NAT, Docker may require proxy settings; this guide explains three proxy scenarios—daemon (dockerd) via systemd, container-level via config.json, and build-time via build arguments—detailing the necessary environment variables, configuration files, and command-line options for Linux environments.
This guide introduces Spug, a lightweight, agent‑less automation operations platform for small‑to‑medium enterprises, outlines its core features, lists installation prerequisites, provides step‑by‑step Docker installation commands, and demonstrates essential usage such as host management, batch execution, application deployment, configuration, monitoring, alerting, and system administration.
This guide walks through setting up a highly available Kubernetes cluster on five CentOS 7 machines using kubeadm, configuring keepalived and HAProxy for load balancing, disabling swap and SELinux, installing Docker, initializing the control plane, joining master and worker nodes, deploying Calico networking, and verifying the cluster’s functionality.
This article outlines a comprehensive backend technology selection guide for microservices, covering programming languages, IDEs, frameworks, RPC solutions, distributed transaction tools, API gateways, configuration centers, service discovery, monitoring, logging, database middleware, serialization, build tools, containers, orchestration, and runtime environments.
Although Docker has become popular for containerizing applications, this article outlines seven key drawbacks—ranging from data safety and performance to networking, statefulness, resource isolation, cloud platform incompatibility, and hardware demands—that make deploying databases in Docker containers generally unsuitable.
mall‑tiny is an open‑source SpringBoot + MyBatis‑Plus scaffold that streamlines backend development by providing a lightweight project skeleton with integrated permission management, Docker support, Swagger documentation, and code generation tools, enabling rapid setup, customization, and deployment of secure REST APIs.
This guide explains how GitHub's Container Registry (ghcr.io) works, compares it with Docker Hub, shows how to create a personal access token with the proper scopes, and provides step‑by‑step commands for logging in, pushing images, and integrating the registry into GitHub Actions workflows.
The article explains why Docker’s recent terms of service restrict usage for companies on the US Entity List, clarifies which Docker products are affected, and shows that open‑source Docker CE remains usable while commercial Docker EE and Docker Hub are prohibited for listed entities.
This guide walks through Prometheus fundamentals, architecture, components, service discovery, Docker-based deployment, exporter integration, Alertmanager configuration, Grafana visualization, PromQL queries, and Consul service discovery, providing a complete end‑to‑end monitoring solution for cloud‑native environments.
Learn how to accelerate Java applications on Google Cloud Run by minimizing container image size, leveraging container-aware JVM settings, reducing thread usage, and applying Spring Boot-specific tweaks such as layered JARs, lazy initialization, and avoiding background tasks to cut startup latency and memory consumption.
An extensive two-hour video course guides you through Spring Cloud and Kubernetes, covering Linux system setup, Docker fundamentals, Dockerfile creation, Docker‑Compose deployment, Harbor registry, Rancher and K8s cluster installation, HA setups with RKE and Helm, as well as k3s basics and Spring Cloud deployment, with links to the videos and supplemental materials.
This guide explains Docker Swarm's built‑in cluster management, key concepts such as Swarm, Node, Stack, Service, Task, and load balancing, and provides step‑by‑step commands for initializing a Swarm, adding nodes, labeling, deploying stacks, and updating services.
This comprehensive tutorial walks you through preparing three CentOS 7.5 machines, disabling firewalls and swap, installing Docker and Kubernetes components with yum repositories, configuring the master node, joining worker nodes, deploying Flannel networking, setting up the Kubernetes dashboard, and troubleshooting common issues.
Learn practical, non‑standard techniques for migrating Docker images, containers, and data volumes—including using docker save/load, export/import, and volume backup/restore with tar—especially useful in offline or tightly controlled production environments lacking a registry.
This step‑by‑step guide shows how to enable security groups, install the BT control panel, configure firewall rules, deploy JDK and Tomcat, and install Docker on a Linux server, including all required commands and troubleshooting tips.
This guide explains why dual‑booting is being replaced by WSL 2, describes its architecture and performance benefits, and provides step‑by‑step instructions for installing Ubuntu 20.04, configuring WSL 2, and setting up VS Code, Docker, Kubernetes, and the new Windows Terminal for a powerful developer workstation.
This article explains why small Docker images matter, demonstrates the traditional Dockerfile approach, introduces the Builder Pattern with its drawbacks, and then shows how Docker's multi‑stage build feature can produce equally small images with far less complexity, complete with code examples.
This article introduces five practical Docker utilities—Watchtower, docker‑gc, docker‑slim, rocker, and ctop—explaining their purpose, core commands, and how they can streamline container updates, cleanup, image slimming, Dockerfile extensions, and real‑time monitoring for developers and operators.
This guide walks you through setting up a GitLab CI environment, configuring a Docker‑enabled runner, writing Dockerfile and .gitlab-ci.yml files, and automating code compilation, container image creation, and deployment of a Go application, complete with command examples and troubleshooting tips.
This guide explains how to migrate Docker images, containers, and volumes in offline or constrained environments using save/load, export/import, and backup/restore commands, providing step‑by‑step examples and best‑practice recommendations for reliable operations.
This tutorial explains how to download Docker images for Elasticsearch, Kibana, and Logstash, create a Docker‑Compose configuration file, launch the ELK stack containers, verify their operation, customize Logstash to monitor log files, and finally use Kibana to search and analyze the collected logs.
This article explains why Docker images often become oversized and presents several practical techniques—manual Dockerfile edits, multi‑stage builds, Google’s distroless images, Alpine Linux bases, and GNU Guix packaging—to dramatically reduce image size while balancing debugging convenience and security.
This article examines seven critical drawbacks of running databases inside Docker containers—including data safety, performance, networking, statefulness, resource isolation, cloud platform limitations, and environment requirements—while also suggesting scenarios where containerized databases may still be viable.
This guide explains the core concepts of TensorFlow Serving, shows how to prepare Docker images, save TensorFlow 2.x models in various formats, configure version policies, warm‑up models, start the service, and invoke it via gRPC or HTTP with complete code examples.
The Ngrok‑based Doki malware silently scans for Docker API endpoints with weak configurations, hijacks containers to run crypto miners, uses the Dogecoin blockchain for dynamic C2 domains, and evades detection, highlighting the critical need to secure Docker APIs.
Docker’s updated service terms clarify that while its commercial services are subject to U.S. export controls and cannot be used in embargoed countries, the open‑source Docker engine itself remains unrestricted, and the article explains the legal background, relevant regulations, and industry impact.
This comprehensive guide explains Docker images, their UnionFS layering, bootfs and rootfs structures, image characteristics, how to commit images, use data volumes, build custom images with Dockerfiles, create Tomcat and SpringBoot containers, and push images to Alibaba Cloud, providing practical commands and examples throughout.
This article introduces Docker by explaining container fundamentals, comparing virtual machines and containers, detailing core Docker concepts, guiding readers through installation, building a Vue project image with Nginx, running and publishing the container, and offering best‑practice tips for efficient containerization.
This article explains the core concepts of TensorFlow Serving, shows how to prepare the environment with Docker, convert TensorFlow 2.x models to the SavedModel format, configure version policies, warm‑up the service, and invoke predictions via gRPC or HTTP interfaces.
This article provides a comprehensive introduction to Docker, covering its underlying technology, reasons for adoption, step‑by‑step installation on CentOS, essential image and container commands, detailed Dockerfile instructions, and practical examples for building and running a Spring Boot application.
This article explains the core Linux networking technologies that Docker relies on—Network Namespace, bridge devices, Veth pairs, iptables/netfilter, and routing tables—detailing their functions, configurations, and how they enable isolated yet interconnected container networks.
This article introduces Confluent KSQL, a SQL‑based real‑time stream processing engine for Kafka, covering its architecture, stream vs table concepts, query lifecycle, Docker‑based setup, DDL commands, example joins, windowed aggregations, connectors, and its advantages and limitations.
Learn how to protect Docker’s exposed remote management port 2375 by generating CA, server, and client certificates with OpenSSL, configuring Docker daemon for TLS verification, and adjusting docker-maven-plugin settings to safely build and push images without exposing insecure endpoints.
Cartoonize is an open‑source web application that leverages a white‑box GAN model to convert images and short videos into high‑quality cartoon style, offering easy Docker or virtualenv installation, detailed usage instructions, and insights into the underlying research paper.
This article explains the core Linux networking technologies—Network Namespace, bridge devices, Veth pairs, iptables/netfilter, and routing—that Docker relies on to provide isolated, configurable network stacks for containers, and includes practical command examples.
This article introduces Docker fundamentals, compares containers with virtual machines, explains core concepts, walks through installation, basic commands, building a Docker image for a Vue application, running and publishing the container, and shares best‑practice tips for containerization.
This guide walks you through creating a three‑node Kafka cluster with Zookeeper using Docker‑Compose, configuring the necessary YAML, launching the containers, and then integrating the cluster into a Spring Boot application by adding dependencies, setting Kafka properties, defining message, sender, and receiver classes, and testing the message flow.
This article compiles a comprehensive, categorized collection of penetration testing resources—including anonymity tools, antivirus evasion utilities, books, CTF frameworks, Docker containers, network analysis tools, OSINT platforms, and more—providing security professionals and researchers with a valuable reference for offensive security engagements.
This guide shows how to set up a Docker‑Compose Kafka cluster with Zookeeper, run it, and integrate the cluster into a Spring Boot application using Spring Kafka, including required dependencies, configuration, and sample producer‑consumer code, plus testing via a REST endpoint.
Learn step‑by‑step how to set up a binlog‑based MySQL master‑slave replication using Docker‑Compose and Dockerfiles, covering directory structure, configuration files, container creation, verification, and troubleshooting, so you can quickly deploy a reliable MySQL replication environment.
This article examines seven key reasons why deploying databases in Docker containers is problematic, covering data safety, performance bottlenecks, networking complexities, statefulness, resource isolation, cloud platform constraints, and hardware requirements, while also suggesting cautious strategies for selective containerization.
This article explains Redis 6.0’s built‑in client‑side caching, demonstrates how to install Redis via Docker, configure Lettuce snapshot dependencies, write Java code to enable and test cache synchronization, monitor Redis commands, and outlines current limitations of Lettuce and Spring Boot support.
This article traces Docker's evolution from a startup's LXC‑based PaaS to an open‑source container platform, explains its lightweight virtualization advantages over virtual machines, introduces Kubernetes as a powerful orchestration system, and shows how these technologies are reshaping telecom core networks with container‑based micro‑services.
This article provides a comprehensive walkthrough of Nginx configuration directives, explains key parameters such as worker processes, logging, gzip, and demonstrates how to set up multi‑node load balancing with various upstream algorithms using Docker containers and host file adjustments.
Spring Boot 2.3.2, now available via repo.spring.io and Maven Central, introduces 88 bug fixes, enhanced health monitoring, configurable Docker image builds, reactive Elasticsearch checks, and resolves critical issues like reactor‑netty file descriptor limits and Redis Cluster health checks, urging users of 2.3.1 or 2.2.8 to upgrade.
Although Docker has become popular for deploying many applications, this article outlines seven technical reasons—ranging from data safety and performance to networking, statefulness, resource isolation, cloud platform limitations, and environment requirements—that make containerizing databases generally impractical, while also suggesting cautious scenarios where it might work.
This article analyzes the pain points of iOS development at Xianyu—complex environment setup, massive CocoaPods downloads, and slow branch‑switch builds—and details a hybrid Docker‑based solution plus artifact caching that reduces build time from half an hour to under five minutes.
This step‑by‑step guide shows how to pull a FastDFS Docker image, create tracker and storage containers, adjust their configurations, and verify file upload, providing a fast way to set up the distributed file system on a Mac host.
The article traces the history from early Live CD technologies like Knoppix’s cloop and SquashFS, through the development of union filesystems such as aufs, to Docker’s layered image model, and discusses emerging next‑generation image formats aiming to reduce redundancy and improve lazy loading.
This guide walks you through setting up Anaconda, preparing UI component images, training a SimpleVGGNet model on macOS, and deploying the model as a Docker‑based service that can be queried via an HTTP API.
This article explains how to use Docker volumes for persistent container storage, demonstrating data creation, volume creation, mounting, data persistence across container restarts, alternative -v usage, and sharing volumes between containers with --volumes-from.
360’s Doraemon monitoring platform extends Prometheus with a rule engine, alert gateway and web UI, offering dynamic rule loading, label‑based routing, aggregation, maintenance groups, and both Docker‑Compose and Kubernetes deployments, all open‑sourced on GitHub.
This guide explains Docker's two log types, how to locate engine logs on various Linux distributions, how to use the docker logs command, and provides detailed configuration examples for each Docker log driver—including local, json‑file, syslog, and journald—plus strategies for handling file‑based container logs in production environments.
This guide explains why Docker images become large, identifies the three main factors—base image size, Dockerfile layer count, and application JAR size—and demonstrates how to use Spring Boot's layered packaging and Dockerfile tricks to reduce image size from megabytes to a few kilobytes.
Although Docker offers many benefits for application deployment, this article outlines seven key reasons—including data safety, performance, networking, statefulness, resource isolation, cloud platform incompatibility, and environmental requirements—that make containerizing databases problematic and suggest careful consideration before using Docker for database workloads.
This article explains Docker’s four network drivers (bridge, host, none, overlay), details how the bridge driver creates the docker0 bridge and veth pairs, shows port‑mapping with -p/-P, then covers Kubernetes pod communication patterns, CNI plugins, and provides a step‑by‑step guide to deploying and configuring Flannel with different backends such as vxlan, host‑gw and directrouting.
This article explains how virtualization technology—ranging from early hypervisors and Popek‑Goldberg requirements to hardware‑assisted extensions, KVM‑QEMU, and lightweight container solutions like Docker and Firecracker—forms the foundation of modern cloud computing, detailing its evolution, mechanisms, and trade‑offs.
Learn how to create a simple interactive cat‑themed canvas game for mobile browsers using Go compiled to WebAssembly, covering environment setup with Docker, Go code for DOM manipulation, event handling, rendering, audio, and deployment, while explaining WASM concepts and differences from Service and Web Workers.
This article explores the evolution of virtualization technology—from its theoretical foundations and early hypervisor designs to full and para-virtualization, hardware-assisted extensions, and lightweight solutions like containers and microVMs—explaining key concepts, architectures, and their roles in modern cloud computing.
This guide walks you through creating a Python Flask project, manually building and running its Docker image, configuring GitLab runners, writing a .gitlab-ci.yml pipeline for style checks, tests, deployment, and release, and managing a private Docker registry for versioned releases.
This tutorial walks through installing Java (JRE/JDK), setting JAVA_HOME, installing Jenkins via apt or Docker, configuring Jenkins service and Nginx reverse proxy, handling common timezone and permission errors, and resetting the admin password, providing complete commands and configuration snippets for a functional CI/CD setup on Ubuntu.
This guide explains the fundamentals of Continuous Integration (CI), compares popular CI tools like Jenkins and GitLab CI, and provides detailed, cross‑platform instructions for installing Docker, setting up GitLab‑CI runners, configuring permissions, and registering runners with various token types for seamless automated builds.
This guide explains how to perform interface testing using Robot Framework, set up the required environment, design test cases for order placement, integrate the tests into Jenkins CI/CD pipelines, expose them via a Flask API, containerize with Docker, and deploy the solution on Kubernetes.
This article describes a DevOps‑based continuous deployment practice that integrates project management, code, image, and configuration handling with tools such as Bitbucket, Jenkins, Docker, Harbor, and Kubernetes to achieve automated, one‑click deployments for development and test environments.
This extensive tutorial explains Linux containers and Docker fundamentals, compares containers with virtualization, outlines Docker's history, demonstrates installation steps, covers essential Docker commands, image lifecycle management, Dockerfile creation, container networking options, Docker Compose orchestration, private registry setup, Harbor deployment, and best practices for production use.
This article provides a comprehensive introduction to Docker, covering its origins from LXC, core concepts such as images, containers, and registries, detailed architecture components like client, daemon, engine, graph and drivers, and practical command‑line examples for installation, image management, container execution, and troubleshooting.
This guide walks you through building a production‑ready ELK log collection system using Docker‑Compose, configuring Logback to route debug, error, business, and record logs, setting up Logstash pipelines, and leveraging Kibana for powerful log visualization in SpringBoot applications.
Learn how to package a Spring Boot application into a Docker image using three Maven plugins—spring-boot-maven-plugin's build-image, Google's jib-maven-plugin, and the dockerfile-maven-plugin—complete with setup steps, command examples, and tips for container testing.
This article explains how an expired AddTrust External CA Root caused HTTPS requests to Sentry to fail, shows how to reproduce the error with curl and OpenSSL, and provides step‑by‑step fixes for Ubuntu, Docker‑Alpine, and macOS environments.
