agent/ecr/factory.go
func getClientConfig(httpClient *http.Client, authData *apicontainer.ECRAuthData) (*aws.Config, error) {
	cfg := aws.NewConfig().WithRegion(authData.Region).WithHTTPClient(httpClient)
	if authData.EndpointOverride != "" {
		cfg.Endpoint = aws.String(authData.EndpointOverride)
	}

	if authData.UseExecutionRole {
		if authData.GetPullCredentials() == (credentials.IAMRoleCredentials{}) {
			return nil, fmt.Errorf("container uses execution credentials, but the credentials are empty")
		}
		creds := awscreds.NewStaticCredentials(authData.GetPullCredentials().AccessKeyID,
			authData.GetPullCredentials().SecretAccessKey,
			authData.GetPullCredentials().SessionToken)
		cfg = cfg.WithCredentials(creds)
	}

	return cfg, nil
}
func getClientConfig(httpClient *http.Client, authData *apicontainer.ECRAuthData) (*aws.Config, error) {
	cfg := aws.NewConfig().WithRegion(authData.Region).WithHTTPClient(httpClient)
	if authData.EndpointOverride != "" {
		cfg.Endpoint = aws.String(authData.EndpointOverride)
	}

	if authData.UseExecutionRole {
		if authData.GetPullCredentials() == (credentials.IAMRoleCredentials{}) {
			return nil, fmt.Errorf("container uses execution credentials, but the credentials are empty")
		}
		creds := awscreds.NewStaticCredentials(authData.GetPullCredentials().AccessKeyID,
			authData.GetPullCredentials().SecretAccessKey,
			authData.GetPullCredentials().SessionToken)
		cfg = cfg.WithCredentials(creds)
	}

	return cfg, nil
}
// getClientConfig returns the config for the ecr client based on authData