Speed Up Docker Pulls with DaoCloud Mirror: Quick Setup Guide
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.
Directly downloading Docker images can often fail or be extremely slow. DaoCloud offers a Docker Hub Mirror service that accelerates image pulls.
Users can register for the Docker Hub Mirror at https://account.daocloud.io/signin . After logging into the console, click Start your accelerator to obtain a mirror address, then configure this address in the Docker daemon startup script and restart Docker.
CentOS configuration
Add the mirror to Docker options:
sudo echo "DOCKER_OPTS=\"$DOCKER_OPTS --registry-mirror=http://xxx.m.daocloud.io\"" >> /etc/default/dockerReplace http://xxx.m.daocloud.io with your own mirror address.
Restart the Docker service: service docker restart Test the speed by pulling a small image (e.g., docker pull crosbymichael/redis); the download should be very fast.
Ubuntu configuration
Append the mirror option to Docker defaults:
echo "DOCKER_OPTS=\"$DOCKER_OPTS --registry-mirror=http://xxx.m.daocloud.io\"" | sudo tee -a /etc/default/dockerRestart Docker:
sudo service docker restartSigned-in readers can open the original source through BestHub's protected redirect.
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