rails 部署时一直卡在 Building fresh packages

改变yarn源

# 查看yarn当前镜像源
yarn config get registry

# 设置yarn镜像源为淘宝镜像
yarn config set registry https://registry.npm.taobao.org/
yarn config set sass_binary_site https://npm.taobao.org/mirrors/node-sass/

修改后部署，服务器执行 Building fresh packages 就会很快了