This guide explains why Docker image pulls can be painfully slow, presents a curated list of reliable mirror URLs verified on January 6 2026, provides a one‑click installation script for Docker with automatic mirror configuration, and includes detailed manual setup steps and verification commands for Linux environments.
This guide explains why Docker image pulls often time out in China, shows that many online mirror lists are outdated, and provides three verified registry mirrors with step‑by‑step configuration, testing instructions, and practical tips to keep Docker pulling fast and reliable.
This tutorial walks you through installing a private, secure Harbor 2.14.1 container registry on Linux, covering system prerequisites, Docker setup, offline installer download, detailed harbor.yml configuration, firewall adjustments, optional self‑signed certificates, installation scripts, verification, image push testing, common admin commands, production best practices, and troubleshooting tips.
Learn a step‑by‑step, production‑ready guide to install, configure, secure, and scale Harbor—a private container and Helm chart registry—on a Kubernetes cluster, covering Helm preparation, values.yaml tuning, TLS, persistence, authentication, high‑availability, monitoring, CI/CD integration, and troubleshooting.
This guide shows how to set up a self‑hosted multi‑platform Docker image proxy with Docker‑Compose, automatically obtain HTTPS certificates, and configure Docker to pull images through the new registry mirror for faster and reliable pulls.
This guide explains why the original Harbor server needed to be taken offline, walks through setting up a new Harbor instance, and details the step‑by‑step configuration of source and replication repositories plus enabling the replication rule to synchronize images.
This tutorial walks you through removing old Docker packages, configuring yum repositories (official and Alibaba Cloud mirrors), installing a specific Docker Engine version, setting up image acceleration, verifying Docker, installing Docker‑Compose, downloading and configuring Harbor, and finally validating the Harbor registry on a CentOS system.
When a Harbor registry is deployed on a cloud ECS without a public IP or GUI, you can still list projects, view repositories, retrieve image digests, and delete images entirely through RESTful API calls using curl, followed by a manual garbage‑collection step to reclaim disk space.
This tutorial explains how to switch Harbor's default storage to MinIO by setting Harbor to read‑only, transferring images with rclone, configuring Harbor to use MinIO as its backend, re‑enabling writes, and verifying the new setup, providing all necessary commands and tips.
This guide explains what Docker base images are, how their layered filesystem works, the methods for building new images with docker commit or Dockerfile, best practices for tagging, and the options for distributing images via public or private registries.
This guide explains how to use GitHub Actions to automatically mirror Docker images from public registries to an Alibaba Cloud private registry, providing step‑by‑step configuration of the cloud namespace, GitHub secrets, and the action workflow to keep images accessible within China.
Learn step‑by‑step how to set up a production‑grade, highly available Harbor container registry on a Kubernetes cluster using Helm, covering prerequisites, architecture, chart installation, TLS certificate creation, secret management, PostgreSQL setup, and verification procedures.
The Shanghai Jiao Tong University mirror announced the shutdown of its Docker Hub accelerator on June 6, prompting users to replace the unavailable address with other domestic mirrors such as NetEase, Alibaba Cloud, Baidu, and Nanjing University to maintain fast container image downloads.
This guide walks you through installing Docker, Docker Compose, OpenSSL, and the Harbor private registry on CentOS, configuring Harbor, setting up insecure registries, and using Docker and Helm commands to push and pull images.
Docker Hub announced that free organization accounts will lose access to private repositories after April 14 unless upgraded to a paid plan, prompting community backlash, outlining the continued availability of public images, and reviewing alternative container solutions such as Podman and Containerd.
This guide compares the leading container registries—Amazon ECR, Azure Container Registry, Docker Hub, Google Cloud Container Registry, and Harbor—highlighting their features, management capabilities, security scanning, and integration with cloud‑native workflows.
Facing high operational costs and scaling challenges with its self-built Harbor registry, Lixun Logistics migrated core container images to Alibaba Cloud’s ACR Enterprise Edition, achieving a 50% reduction in registry complexity, 60% faster image distribution, and enhanced security across multi-region deployments.
Zhang Chenyu from Lingque Cloud shares a comprehensive enterprise‑level Harbor case study, covering its role as an image registry, migration from 1.x to 2.x with multi‑architecture support, internal governance policies, integration with ACP, community contributions, performance workgroup findings, and the offered Harbor Enterprise edition.
This article explains what Harbor is, why a private Docker registry is needed, and provides a detailed, command‑line tutorial—including installing Docker Compose, downloading and extracting Harbor, configuring it, and pushing images—complete with code snippets and screenshots.
This article explains how Nexus Repository can serve as a centralized, enterprise‑grade Docker and Helm registry, detailing repository types, configuration steps, and practical commands for creating, exposing, and using a private container registry within a Kubernetes environment.
This guide shows how to set up a self‑hosted Docker registry proxy using Docker's registry image, Kubernetes (k3s), and Envoy to accelerate access to public image repositories like gcr.io, quay.io, and Docker Hub from within China, covering prerequisites, custom Dockerfile, deployment manifests, Envoy configuration, authentication, and cache cleanup.
This article explains how Nexus Repository can serve as a centralized Docker and Helm registry for Kubernetes deployments, detailing repository types, configuration steps, and practical code examples for creating, securing, and testing a private container image registry.
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 surveys 2020 DevOps trends, covering cloud‑native adoption, container registries, Go's role, heightened security, serverless growth, multi‑cloud strategies, and real‑world case studies, while highlighting key performance metrics and market forecasts for the next few years.
The article surveys the 2020 DevOps landscape, highlighting how cloud‑native architecture, container registries, Go adoption, heightened security, open‑source momentum, serverless computing, and multi‑cloud strategies are reshaping software delivery and organizational digital transformation.
This article explains the Harbor container image registry, its six‑component architecture, role‑based access control, project management, image replication, high‑availability deployment with load balancing, Docker image layers, overlay2 storage details, and the directory structure and workflow for storing and uploading images.
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 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 use a Python script to automatically delete outdated images from a private Harbor registry, detailing the background, approach, deletion workflow, current limitations, and providing the full source code for easy adaptation.
This guide explains how to create a Docker Hub account, log in, search and pull images, build and tag custom images, push them to Docker Hub, and configure a private Docker registry for local image storage and retrieval, covering all essential Docker commands and options.
This article explains the design and implementation of Harbor's policy‑based Docker image replication, detailing its architecture, job service workflow, state‑machine handling, and how it reduces storage‑specific dependencies while simplifying large‑scale container registry synchronization.
This article examines Docker image storage technologies, compares overlayfs and device-mapper drivers, and introduces Speedy, an open‑source distributed backend storage system for Docker images, detailing its architecture, modules, and upload/download workflows.
