forked from mesos/mesos_exporter
/
main.go
67 lines (57 loc) · 1.66 KB
/
main.go
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package main
import (
"flag"
"log"
"net/http"
"os"
"time"
"github.com/prometheus/client_golang/prometheus"
)
var errorCounter = prometheus.NewCounter(prometheus.CounterOpts{
Namespace: "mesos",
Subsystem: "collector",
Name: "errors_total",
Help: "Total number of internal mesos-collector errors.",
})
func init() {
prometheus.MustRegister(errorCounter)
}
func main() {
fs := flag.NewFlagSet("mesos-exporter", flag.ExitOnError)
addr := fs.String("addr", ":9110", "Address to listen on")
masterURL := fs.String("master", "", "Expose metrics from master running on this URL")
slaveURL := fs.String("slave", "", "Expose metrics from slave running on t his URL")
timeout := fs.Duration("timeout", 5*time.Second, "Master polling timeout")
fs.Parse(os.Args[1:])
if *masterURL != "" && *slaveURL != "" {
log.Fatal("Only -master or -slave can be given at a time")
}
switch {
case *masterURL != "":
for _, c := range []prometheus.Collector{
newMasterCollector(*masterURL, *timeout),
newMasterStateCollector(*masterURL, *timeout),
} {
if err := prometheus.Register(c); err != nil {
log.Fatal(err)
}
}
log.Printf("Exposing master metrics on %s", *addr)
case *slaveURL != "":
for _, c := range []prometheus.Collector{
newSlaveCollector(*slaveURL, *timeout),
newSlaveMonitorCollector(*slaveURL, *timeout),
} {
if err := prometheus.Register(c); err != nil {
log.Fatal(err)
}
}
log.Printf("Exposing slave metrics on %s", *addr)
default:
log.Fatal("Either -master or -slave is required")
}
http.Handle("/metrics", prometheus.Handler())
if err := http.ListenAndServe(*addr, nil); err != nil {
log.Fatal(err)
}
}