Add AWS credentials support #39
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This is super-cool! Implementation looks great, thanks so much @andrioni, scheduling... |
jbeemster
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Hi! This PR includes several additional template functions in order to support several types of AWS authentication:
awsEnvCredentials: supports passing credentials through environment variables, such asAWS_ACCESS_KEY_ID,AWS_ACCESS_KEY,AWS_SECRET_ACCESS_KEYandAWS_SECRET_KEY;awsProfileCredentials: supports getting credentials from a credentials file, also used by boto/awscli;awsEC2RoleCredentials: supports getting role-based credentials, i.e. getting the automatically generated credentials in EC2 instances;awsChainCredentials: tries to get credentials from each of the three methods above in order, using the first one returned.They all output strings in the Redshift credentials format (
CREDENTIALS 'aws_access_key_id=%s;aws_secret_access_key=%s').All these methods were implemented using directly the official Go SDK, and it's very easy to extend them in the future to support different providers (say, using Hashicorp's Vault).