Joel Thompson 8aeea21416 auth/aws: Check credential availability before auth (#3465)
Checks to ensure we can get a valid credential from the credential chain
when using the vault CLI to do AWS auth.

Fixes #3383
2017-11-13 15:43:24 -05:00
..
2017-10-23 17:39:21 -04:00
2017-10-23 17:39:21 -04:00
2017-10-23 17:39:21 -04:00