给docker设置个代理

sudo mkdir -p /etc/systemd/system/docker.service.d
sudo touch /etc/systemd/system/docker.service.d/http-proxy.conf

if ! grep HTTP_PROXY /etc/systemd/system/docker.service.d/http-proxy.conf;
then
cat >> /etc/systemd/system/docker.service.d/http-proxy.conf <<EOF
[Service]
Environment="HTTP_PROXY=http://127.0.0.1:3128/" "HTTPS_PROXY=http://127.0.0.1:3128/" "NO_PROXY=localhost,127.0.0.1,docker-registry.somecorporation.com"
EOF
fi

# Flush changes:
sudo systemctl daemon-reload
#Restart Docker:
sudo systemctl restart docker
#Verify that the configuration has been loaded:
sudo systemctl show --property=Environment docker
# 像这样：Environment=HTTP_PROXY=http://127.0.0.1:8081/ NO_PROXY=localhost,127.0.0.1,docker-registry.so