net: TestCgoLookupIP fails on brillo

[rakyll]

Reproducible on Qualcomm Dragonboard 410c, Brillo image built with BDK 7.5.4.

go_android_exec: adb shell mkdir -p /mnt/media_rw/tmp/net.test-55266
go_android_exec: adb push /var/folders/00/1b8h8000h01000cxqpysvccm005d21/T/go-build559449628/net/_test/net.test /mnt/media_rw/tmp/net.test-55266/net.test-55266-tmp
1358 KB/s (5223788 bytes in 3.754s)
go_android_exec: adb shell cp '/mnt/media_rw/tmp/net.test-55266/net.test-55266-tmp' '/mnt/media_rw/tmp/net.test-55266/net.test-55266'
go_android_exec: adb shell rm '/mnt/media_rw/tmp/net.test-55266/net.test-55266-tmp'
go_android_exec: adb shell export TMPDIR="/mnt/media_rw/tmp/net.test-55266"; export GOROOT="/mnt/media_rw/goroot/"; export GOPATH="/mnt/media_rw/gopath/"; cd "/mnt/media_rw/goroot/src/net"; '/mnt/media_rw/tmp/net.test-55266/net.test-55266' -test.short=true -test.timeout=6m0s; echo -n exitcode=$?
--- FAIL: TestCgoLookupIP (0.01s)
    cgo_unix_test.go:19: lookup localhost: No address associated with hostname
    cgo_unix_test.go:22: lookup localhost on [::1]:53: read udp [::1]:58014->[::1]:53: read: connection refused
FAIL

[rakyll]

Holding the fix for this one, Brillo should include a minimal hosts file with localhost similar to Android.

[gopherbot]

CL https://golang.org/cl/20340 mentions this issue.

[odeke-em]

Hey @rakyll shall we close this issue perhaps, as Brillo got refocused? Thanks.