Translate AWS Rate limiting errors to 502 errors (#5270)

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* Initial implemntation of returning 529 for rate limits

- bump aws iam and sts packages to v1.14.31 to get mocking interface
- promote the iam and sts clients to the aws backend struct, for mocking in tests
- this also promotes some functions to methods on the Backend struct, so
  that we can use the injected client

Generating creds requires reading config/root for credentials to contact
IAM. Here we make pathConfigRoot a method on aws/backend so we can clear
the clients on successful update of config/root path. Adds a mutex to
safely clear the clients

* refactor locking and unlocking into methods on *backend

* refactor/simply the locking

* check client after grabbing lock

...

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Clint

2018-09-18 15:26:06 -05:00

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parent b7d6d55ac1

commit f39bafbf9c

15 changed files with 2002 additions and 93 deletions

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vendor/github.com/aws/aws-sdk-go/service/iam/api.go generated vendored

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