mkdir -p /etc/systemd/system/docker.service.d
tee /etc/systemd/system/docker.service.d/http-proxy.conf <<-'EOF'
[Service]
Environment="HTTP_PROXY=http://127.0.0.1:7890"
Environment="HTTPS_PROXY=http://127.0.0.1:7890"
EOF

sudo systemctl daemon-reload
sudo systemctl restart docker
systemctl show --property=Environment docker