Merge pull request #80 from Chaostheorie/main

chore: make listen address fully configurable

README.md

@@ -95,8 +95,9 @@ A multi-architecture docker image with usage instructions is available at https:
 
 ## Configuration options
 The following configuration options are available and must be set via Environment variable:
+- BORGMATIC_EXPORTER_HOST - Set the http listen address. Default to `0.0.0.0`
 - BORGMATIC_EXPORTER_PORT - Set the http listen port. Default to `8090`
 - BORGMATIC_EXPORTER_ENDPOINT - Set the metrics endpoint. Defaults to `metrics`
 - BORGMATIC_EXPORTER_CONFIG - Overrides the default config paths using `borgmatic -c`. Uses Borgmatic defaults if not set. Multiple config paths must be separated with spaces, i.e `/path/to/config1.yaml /path/to/config2.yaml`
 - BORGMATIC_EXPORTER_DEBUG - Enable debug messages to stdout
-- BORGMATIC_EXPORTER_LOGFORMAT - Set the format of logs. Valid options are `keyvalue` (default) and `json`
+- BORGMATIC_EXPORTER_LOGFORMAT - Set the format of logs. Valid options are `keyvalue` (default) and `json`

cmd/borgmatic-exporter/main.go

@@ -27,8 +27,9 @@ func main() {
 	prometheus.MustRegister(collector)
 
 	http.Handle(fmt.Sprintf("/%s", config.Endpoint), promhttp.Handler())
-	logs.Logger.Info(fmt.Sprintf("listening on http://localhost:%s/%s", config.Port, config.Endpoint))
-	err = http.ListenAndServe(fmt.Sprintf(":%s", config.Port), nil)
+	addr := config.Host + ":" + config.Port
+	logs.Logger.Info(fmt.Sprintf("listening on http://%s/%s", addr, config.Endpoint))
+	err = http.ListenAndServe(addr, nil)
 
 	if errors.Is(err, http.ErrServerClosed) {
 		logs.Logger.Error("server closed",

internal/config/config.go

@@ -6,6 +6,7 @@ import (
 )
 
 type specification struct {
+	Host      string `default:"0.0.0.0"`
 	Port      string `default:"8090"`
 	Endpoint  string `default:"metrics"`
 	Config    string `default:""`