解决docker配置代理后pull成功,但是build失败

解决docker配置代理后pull成功,但是build失败
export HTTP_PROXY=http://127.0.0.1:7897
export HTTPS_PROXY=http://127.0.0.1:7897
docker build --network host -t * .
docker buildx create --use --name mybuilder  --driver-opt network=host --driver-opt env.http_proxy=http://127.0.0.1:7897  --driver-opt env.https_proxy=http://127.0.0.1:7897  --bootstrap