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allow to override the default os.Hostname() when creating PrometheusURLs

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This commit is contained in:
Tobias Gesellchen 2015-05-22 12:29:33 +02:00 committed by Tobias Gesellchen
parent db2a0e17c5
commit 84d42f48e5
1 changed files with 10 additions and 2 deletions
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12
web/web.go
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@ -40,6 +40,7 @@ var localhostRepresentations = []string{"127.0.0.1", "localhost"}
// Commandline flags.
var (
listenAddress = flag.String("web.listen-address", ":9090", "Address to listen on for the web interface, API, and telemetry.")
hostname = flag.String("web.hostname", "", "Hostname on which the server is available.")
metricsPath = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
useLocalAssets = flag.Bool("web.use-local-assets", false, "Read assets/templates from file instead of binary.")
userAssetsPath = flag.String("web.user-assets", "", "Path to static asset directory, available at /user.")
@ -176,7 +177,7 @@ func getTemplate(name string, pathPrefix string) (*template.Template, error) {
return lset
},
"globalURL": func(url string) string {
hostname, err := os.Hostname()
hostname, err := getHostname()
if err != nil {
log.Warnf("Couldn't get hostname: %s, returning target.URL()", err)
return url
@ -240,9 +241,16 @@ func MustBuildServerURL(pathPrefix string) string {
if err != nil {
panic(err)
}
hostname, err := os.Hostname()
hostname, err := getHostname()
if err != nil {
panic(err)
}
return fmt.Sprintf("http://%s:%s%s", hostname, port, pathPrefix)
}
func getHostname() (string, error) {
if *hostname != "" {
return *hostname, nil
}
return os.Hostname()
}