/
main.go
65 lines (50 loc) · 1.38 KB
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
package main
import (
"flag"
"io/ioutil"
"os"
log "github.com/inconshreveable/log15"
"net/http"
"github.com/prometheus/client_golang/prometheus"
"gopkg.in/yaml.v2"
)
var build string
const debug = false
var (
// Log is a main logger
Log log.Logger = log.Root()
queue = make(chan rawMessage, 100)
configFile = flag.String("config.file", "config.yaml", "promqtt configuration file.")
listenAddress = flag.String("web.listen-address", ":9214", "The address to listen on for HTTP requests.")
logLevel = flag.String("log.level", "info", "Log level.")
)
func init() {
prometheus.MustRegister(messagesPublished)
prometheus.MustRegister(messagesReceived)
}
func main() {
flag.Parse()
yamlFile, err := ioutil.ReadFile(*configFile)
lvl, _ := log.LvlFromString(*logLevel)
Log.SetHandler(
log.LvlFilterHandler(lvl,
log.StreamHandler(os.Stderr, log.TerminalFormat())))
if err != nil {
Log.Crit("Error reading config file", "err", err)
}
config := config{}
err = yaml.Unmarshal(yamlFile, &config)
if err != nil {
Log.Crit("Error parsing config file", "err", err)
}
initMetrics(&config)
Log.Info("Starting promqtt", "build", build)
for _, broker := range config.Brokers {
go func(broker *Broker) {
broker.Start()
}(broker)
}
go startPrometheusExporter()
http.Handle("/metrics", prometheus.Handler())
http.ListenAndServe(*listenAddress, nil)
}