Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/corehandlers github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/request github.com/aws/aws-sdk-go/service/s3 gopkg.in/yaml.v2 Standard library imports crypto/hmac crypto/sha1 encoding/base64 fmt io/ioutil log net/http net/url sort strings time