func goStats(cw *cloudwatch.CloudWatch, requests *[]cloudwatch.GetMetricStatisticsRequest, now time.Time, statsCli *statsd.StatsdBuffer) {
log.WithField("now", now).Debug("tick")
for _, request := range *requests {
request.EndTime = now
request.StartTime = now.Add(time.Minute * -1) // 1 minute ago
response, err := cw.GetMetricStatistics(&request)
if err != nil {
log.WithField("error", err).Warn("could not retrieve metric from cloudwatch")
}
for _, dp := range response.GetMetricStatisticsResult.Datapoints {
statsCli.Absolute(fmt.Sprintf("%s.%s", strings.ToLower(request.Dimensions[0].Value), strings.ToLower(request.MetricName)), int64(dp.Sum))
}
}
}
func getMetricRequests(cw *cloudwatch.CloudWatch) ([]cloudwatch.GetMetricStatisticsRequest, error) {
metricsRequest := &cloudwatch.ListMetricsRequest{Namespace: "AWS/SQS"}
response, err := cw.ListMetrics(metricsRequest)
if err != nil {
return nil, err
}
outRequests := make([]cloudwatch.GetMetricStatisticsRequest, len(response.ListMetricsResult.Metrics))
for i, metric := range response.ListMetricsResult.Metrics {
outRequests[i] = cloudwatch.GetMetricStatisticsRequest{
Dimensions: metric.Dimensions,
MetricName: metric.MetricName,
Namespace: metric.Namespace,
Period: 60,
Statistics: []string{"Sum"},
}
}
return outRequests, err
}