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Make config optional

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This commit is contained in:
Johannes 'fish' Ziemke 2014-12-18 12:25:02 +01:00
parent 16048c1399
commit da28c460c8
1 changed files with 8 additions and 4 deletions
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8
node_exporter.go
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@ -22,7 +22,7 @@ import (
const subsystem = "exporter" const subsystem = "exporter"
var ( var (
configFile = flag.String("config", "node_exporter.conf", "Path to config file.") configFile = flag.String("config", "", "Path to config file.")
memProfile = flag.String("memprofile", "", "Write memory profile to this file.") memProfile = flag.String("memprofile", "", "Write memory profile to this file.")
listeningAddress = flag.String("listen", ":8080", "Address to listen on.") listeningAddress = flag.String("listen", ":8080", "Address to listen on.")
enabledCollectors = flag.String("enabledCollectors", "attributes,diskstats,filesystem,loadavg,meminfo,stat,time,netdev,netstat", "Comma-separated list of collectors to use.") enabledCollectors = flag.String("enabledCollectors", "attributes,diskstats,filesystem,loadavg,meminfo,stat,time,netdev,netstat", "Comma-separated list of collectors to use.")
@ -112,10 +112,14 @@ func getConfig(file string) (*collector.Config, error) {
func loadCollectors(file string) (map[string]collector.Collector, error) { func loadCollectors(file string) (map[string]collector.Collector, error) {
collectors := map[string]collector.Collector{} collectors := map[string]collector.Collector{}
config, err := getConfig(file) config := &collector.Config{}
if file != "" {
var err error
config, err = getConfig(file)
if err != nil { if err != nil {
return nil, fmt.Errorf("couldn't read config %s: %s", file, err) return nil, fmt.Errorf("couldn't read config %s: %s", file, err)
} }
}
for _, name := range strings.Split(*enabledCollectors, ",") { for _, name := range strings.Split(*enabledCollectors, ",") {
fn, ok := collector.Factories[name] fn, ok := collector.Factories[name]
if !ok { if !ok {