Chaohua Xu 75a8644d75 Add credential providers 6 anni fa
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chain.go ff562d1051 use provider for var name 7 anni fa
chain_test.go 1f5e0fef02 add credential providers 7 anni fa
configuration.go 1f5e0fef02 add credential providers 7 anni fa
configuration_test.go 05890c1a01 Add test cases for credentials 7 anni fa
doc.go 75a8644d75 Add credential providers 6 anni fa
env.go 1f5e0fef02 add credential providers 7 anni fa
env_test.go 1f5e0fef02 add credential providers 7 anni fa
instance_metadata.go eb79f24170 improve test cases for instance_metadata.go 7 anni fa
instance_metadata_test.go 72e53aa3cf add test cases for signer_ecs_ram_role.go 7 anni fa