一、添加环境变量

vim ~/.bashrc
#添加这两行
export http_proxy="http://192.168.5.201:9051"
export https_proxy="http://192.168.5.201:9051"
#注意修改为你的代理配置，一般https_proxy的配置需要写成http://......，否则可能报错
source ~/.bashrc

二、在docker中配置

sudo mkdir -p /etc/systemd/system/docker.service.d
sudo vim /etc/systemd/system/docker.service.d/http-proxy.conf
#添加以下内容,同样注意HTTPS_PROXY=http://proxy.example.com:port写成http开头。
[Service]
Environment="HTTP_PROXY=http://192.168.5.201:9051"
Environment="HTTPS_PROXY=http://192.168.5.201:9051"
Environment="NO_PROXY=localhost,127.0.0.1"

重启docker

sudo systemctl daemon-reload
sudo systemctl restart docker

测试拉取镜像

docker pull xxx