问题：
cannot find package "cloud.google.com/go/compute/metadata"
解决：
mkdir $GOPATH/src/cloud.google.com cd $GOPATH/src/cloud.google.com git clone https://github.com/googleapis/google-cloud-go mv google-cloud-go go
cannot find package "cloud.google.com/go/compute/metadata"
原文：https://www.cnblogs.com/wangjq19920210/p/11670519.html