Add a config option to read password from a file

Instead of hard coding it in the config file.

cmd/collect.go

@@ -38,7 +38,6 @@ usage: dora collect
 `,
 	Run: func(cmd *cobra.Command, args []string) {
 		configItems := []string{
-			"bmc_pass",
 			"bmc_user",
 			"collector.concurrency",
 			"collector.dump_invalid_payloads",
@@ -56,6 +55,17 @@ usage: dora collect
 			}
 		}
 
+		bmcPass := viper.IsSet("bmc_pass")
+		bmcPassFile := viper.IsSet("bmc_pass_file")
+		if !bmcPass && !bmcPassFile {
+			fmt.Printf("One of the bmc_pass/bmc_pass_file parameters is missing in the config file\n")
+			os.Exit(1)
+		}
+		if bmcPass && bmcPassFile {
+			fmt.Printf("Only one of the bmc_pass/bmc_pass_file parameters is allowed in the config file\n")
+			os.Exit(1)
+		}
+
 		// This will avoid a deadlock in metrics. They are not setup at this stage
 		viper.Set("metrics.enabled", false)
 

connectors/collection.go

@@ -2,6 +2,7 @@ package connectors
 
 import (
 	"fmt"
+	"io/ioutil"
 	"net"
 	"sync"
 	"time"
@@ -24,7 +25,17 @@ import (
 
 func collect(input <-chan string, source *string, db *gorm.DB) {
 	bmcUser := viper.GetString("bmc_user")
-	bmcPass := viper.GetString("bmc_pass")
+	bmcPass := ""
+	if viper.IsSet("bmc_pass") {
+		bmcPass = viper.GetString("bmc_pass")
+	} else {
+		bmcPassFile := viper.GetString("bmc_pass_file")
+		bmcPassBytes, err := ioutil.ReadFile(bmcPassFile)
+		if err != nil {
+			log.WithFields(log.Fields{"operation": "scan"}).Error(err)
+		}
+		bmcPass = string(bmcPassBytes)
+	}
 
 	for host := range input {
 		log.WithFields(log.Fields{"operation": "scan", "ip": host}).Debug("collection started")

dora.yaml

@@ -2,7 +2,7 @@ debug: true
 site:
   - all
 bmc_user: Priest
-bmc_pass: Wololo
+bmc_pass_file: /my/password/file
 url: http://service.example.com/v1
 database_type: postgres
 database_options: host=0.0.0.0 user=postgres port=32768 dbname=postgres password=mysecretpassword