Credentials EnvironmentCredentialsProvider::getCredentials() {

  ENVOY_LOG(debug, "Getting AWS credentials from the environment");

  const auto access_key_id = absl::NullSafeStringView(std::getenv(AWS_ACCESS_KEY_ID));

  if (access_key_id.empty()) {

    return Credentials();

  }

  const auto secret_access_key = absl::NullSafeStringView(std::getenv(AWS_SECRET_ACCESS_KEY));

  const auto session_token = absl::NullSafeStringView(std::getenv(AWS_SESSION_TOKEN));

  ENVOY_LOG(debug, "Found following AWS credentials in the environment: {}={}, {}={}, {}={}",

            AWS_ACCESS_KEY_ID, access_key_id, AWS_SECRET_ACCESS_KEY,

            secret_access_key.empty() ? "" : "*****", AWS_SESSION_TOKEN,

            session_token.empty() ? "" : "*****");

  return Credentials(access_key_id, secret_access_key, session_token);

}