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mondash/welcome_runner.go
Knut Ahlers f3932a4d57
Fix: Welcome dashboard contains no metrics for 1m
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2017-11-22 22:11:44 +01:00

62 lines
1.3 KiB
Go

package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"math/rand"
"net/http"
"time"
"github.com/Luzifer/mondash/config"
)
func runWelcomePage(cfg *config.Config) {
baseURL := cfg.BaseURL
welcomeAPIToken := cfg.APIToken
generateTicker := time.NewTicker(time.Minute)
// Do one initial push on start
postWelcomeMetric(baseURL, welcomeAPIToken)
for range generateTicker.C {
postWelcomeMetric(baseURL, welcomeAPIToken)
}
}
func postWelcomeMetric(baseURL, welcomeAPIToken string) {
beers := rand.Intn(24)
status := "OK"
switch {
case beers < 6:
status = "Critical"
case beers < 12:
status = "Warning"
}
beer := dashboardMetric{
Title: "Amount of beer in the fridge",
Description: fmt.Sprintf("Currently there are %d bottles of beer in the fridge", beers),
IgnoreMAD: true,
Status: status,
Expires: 86400,
Freshness: 120,
Value: float64(beers),
}
body, err := json.Marshal(beer)
if err != nil {
log.Println(err)
return
}
url := fmt.Sprintf("%s/welcome/beer_available", baseURL)
req, _ := http.NewRequest("PUT", url, bytes.NewBuffer(body))
req.Header.Add("Authorization", welcomeAPIToken)
resp, err := http.DefaultClient.Do(req)
if err != nil {
log.Printf("[WelcomeRunner] %s", err)
return
}
resp.Body.Close()
}