公司网络使用代理服务器上外网。在ubuntu上用docker pull出现错误

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$sudo docker pull busybox
Using default tag: latest
Pulling repository docker.io/library/busybox
Network timed out while trying to connect to https://index.docker.io/v1/repositories/library/busybox/images. You may want to check your internet connection or if you are behind a proxy.

但是我明明已经为ubuntu设置了http_proxy了。

查了试了半天，才知道还需要给docker单独设代理，以下是步骤。

First, create a systemd drop-in directory for the docker service:

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mkdir /etc/systemd/system/docker.service.d

Now create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:

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[Service]
Environment="HTTP_PROXY=http://proxy.example.com:80/"

If you have internal Docker registries that you need to contact without proxying you can specify them via the NO_PROXY environment variable:

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Environment="HTTP_PROXY=http://proxy.example.com:80/"
Environment="NO_PROXY=localhost,127.0.0.0/8,docker-registry.somecorporation.com"

Flush changes:

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$ sudo systemctl daemon-reload

Verify that the configuration has been loaded:

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$ sudo systemctl show docker --property Environment
Environment=HTTP_PROXY=http://proxy.example.com:80/

Restart Docker:

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$ sudo systemctl restart docker

现在好使了。

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$sudo docker pull busybox
Using default tag: latest
latest: Pulling from library/busybox
8ddc19f16526: Pull complete
Digest: sha256:a59906e33509d14c036c8678d687bd4eec81ed7c4b8ce907b888c607f6a1e0e6
Status: Downloaded newer image for busybox:latest

原文链接 https://blog.csdn.net/chang_harry/article/details/52116305?utm_source=blogxgwz2