Docker pull 503 Service Unavailable

  • fennng 
Today, one of my colleagues asked me to try to download a docker image because he encountered a network issue. 
Then I tried and found out I had the exact issue as he had.
λ docker pull tiangolo/uwsgi-nginx-flask
Using default tag: latest
Error response from daemon: Get received unexpected HTTP status: 503 Service Unavailable
Obviously, this is not a network issue, it's docker's registry issue.
So if you can't wait, you can use a mirror registry to download the docker images you want. Here are two examples. 
Docker official china mirror (Fast in China, slow outside):
Google Cloud's mirror (less images)


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