Support `GCE_METADATA_HOST`#4

Merged

dilipped merged 4 commits intogsutil-mirrors:masterfrom

ijrsvt:accept-gce-metadata-host

Dec 16, 2021

Commits on Dec 8, 2021

first check GCE_METADATA_HOST

Ian Rodney
authored and
ijrsvt
committed
Unit Test

Ian Rodney
authored and
ijrsvt
committed

Commits on Dec 14, 2021