ston1th/node_exporter
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Code Issues Releases Activity

Use flags instead of config and remove attributes

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This commit is contained in:
Johannes 'fish' Ziemke 2015-05-20 20:04:49 +02:00
commit 665b05eedc
23 changed files with 87 additions and 162 deletions
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31
node_exporter.go
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@ -1,10 +1,8 @@
package main
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"net/http"
_ "net/http/pprof"
"os"
@ -26,11 +24,10 @@ var (
// set at build time
Version = "0.0.0.dev"
configFile = flag.String("config.file", "", "Path to config file.")
memProfile = flag.String("debug.memprofile-file", "", "Write memory profile to this file upon receipt of SIGUSR1.")
listenAddress = flag.String("web.listen-address", ":9100", "Address on which to expose metrics and web interface.")
metricsPath = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
enabledCollectors = flag.String("collectors.enabled", "attributes,diskstats,filesystem,loadavg,meminfo,stat,textfile,time,netdev,netstat", "Comma-separated list of collectors to use.")
enabledCollectors = flag.String("collectors.enabled", "diskstats,filesystem,loadavg,meminfo,stat,textfile,time,netdev,netstat", "Comma-separated list of collectors to use.")
printCollectors = flag.Bool("collectors.print", false, "If true, print available collectors and exit.")
authUser = flag.String("auth.user", "", "Username for basic auth.")
authPass = flag.String("auth.pass", "", "Password for basic auth.")
@ -105,32 +102,14 @@ func Execute(name string, c collector.Collector, ch chan<- prometheus.Metric) {
scrapeDurations.WithLabelValues(name, result).Observe(duration.Seconds())
}
func getConfig(file string) (*collector.Config, error) {
config := &collector.Config{}
glog.Infof("Reading config %s", *configFile)
bytes, err := ioutil.ReadFile(*configFile)
if err != nil {
return nil, err
}
return config, json.Unmarshal(bytes, &config)
}
func loadCollectors(file string) (map[string]collector.Collector, error) {
func loadCollectors() (map[string]collector.Collector, error) {
collectors := map[string]collector.Collector{}
config := &collector.Config{}
if file != "" {
var err error
config, err = getConfig(file)
if err != nil {
return nil, fmt.Errorf("couldn't read config %s: %s", file, err)
}
}
for _, name := range strings.Split(*enabledCollectors, ",") {
fn, ok := collector.Factories[name]
if !ok {
return nil, fmt.Errorf("collector '%s' not available", name)
}
c, err := fn(*config)
c, err := fn()
if err != nil {
return nil, err
}
@ -154,9 +133,9 @@ func main() {
}
return
}
collectors, err := loadCollectors(*configFile)
collectors, err := loadCollectors()
if err != nil {
glog.Fatalf("Couldn't load config and collectors: %s", err)
glog.Fatalf("Couldn't load collectors: %s", err)
}
glog.Infof("Enabled collectors:")