Add default credentials provider(credentials provider chain)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.90%. Comparing base (bdee72c) to head (fbea940). Report is 3 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #653 +/- ## ========================================== + Coverage 94.86% 94.90% +0.04% ========================================== Files 55 56 +1 Lines 3212 3239 +27 ========================================== + Hits 3047 3074 +27 Misses 107 107 Partials 58 58 ```

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