Add infraenv, setup creds and tee for Kitchen.

go/src/infra/libs/infraenv/doc.go

Index: go/src/infra/libs/infraenv/doc.go
diff --git a/go/src/infra/monorail/doc.go b/go/src/infra/libs/infraenv/doc.go
similarity index 58%
copy from go/src/infra/monorail/doc.go
copy to go/src/infra/libs/infraenv/doc.go
index b1a6fa48beef10fc825abfbd8c6a8157c944a280..1b37f58fd506ac85bd6ba87162173cfda96f5d08 100644
--- a/go/src/infra/monorail/doc.go
+++ b/go/src/infra/libs/infraenv/doc.go
@@ -2,5 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Package monorail implements Monorail client.
-package monorail
+// Package infraenv enables applications to access Chrome
+// Infrastructure-specific bot parameters.

[nodir, 2016/07/16 00:38:55]

if this is about bot, maybe the package should be called botenv

[dnj (Google), 2016/07/16 00:49:39]

So far it's about bot, but I think it's a good idea to consolidate all of our
Infra irregularities here, so I anticipate this expanding.

+package infraenv