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|
package main
import (
"fmt"
"log"
"net/http"
"net/url"
"time"
)
func initMetricPusher() {
log.Println("[metrics] Initializing the metricsPusher")
go metricsPusher(METRICBUNDLERURL, metricsPusherDelay)
}
func metricsPusher(metricsBundlerURL string, metricsPusherDelay int64) {
log.Printf("[metrics pusher] The metrics pusher was startet, it will push metrics every %d seconds to the metrics-bundler at %s", metricsPusherDelay, metricsBundlerURL)
// if the metrics map does not exist yet, create it
if len(metrics) == 0 {
metrics = make(map[string]float64)
}
// define the endpoint URL to where the metrics should be pushed
metricsEndpoint := fmt.Sprintf("http://%s/metrics", metricsBundlerURL)
// infinite loop posting the metrics every n seconds to the metrics-bundler
for {
log.Println("[metrics pusher] Pushing the metrics...")
// get all keys and values from all items in the metrics map
for key, value := range metrics {
// make a POST request to the metrics-bundler
_, err := http.PostForm(metricsEndpoint,
url.Values{
"key": {
fmt.Sprintf("%v", key),
},
"value": {
fmt.Sprintf("%v", value),
},
})
// handle potential errors by panicking
if err != nil {
panic(err)
}
}
log.Printf("[metrics pusher] Done pushing the metrics. Waiting %d seconds...", metricsPusherDelay)
// sleep for 5 seconds
time.Sleep(time.Second * time.Duration(metricsPusherDelay))
}
}
|
