database configuration only via PG* env variables and MQTT password only via configured env var

src/udi/config/config.go

@@ -5,7 +5,6 @@ import "log"
 import "os"
 
 type HandlerConfigT struct {
-  DatabaseConnStr string `json:"databaseConnStr"`
   Attributes map[string]string `json:"attributes"`
 }
 
@@ -13,7 +12,8 @@ type ConfigT struct {
   Mqtt struct {
     Broker string `json:"broker"`
     Username string `json:"username"`
-    Password string `json:"password"`
+    PasswordEnvVar string `json:"passwordEnvVar"`
+    Password string
     TlsEnable string `json:"tlsEnable"`
   } `json:"mqtt"`
   TopicMappings []struct {
@@ -36,8 +36,8 @@ func LoadConfiguration() {
     log.Fatalf("Unable to parse configuration: %s", err)
   }
 
-  if Config.Mqtt.Password == "ENV" {
-    Config.Mqtt.Password = os.Getenv("MQTT_PASSWORD")
+  if Config.Mqtt.PasswordEnvVar != "" {
+    Config.Mqtt.Password = os.Getenv(Config.Mqtt.PasswordEnvVar)
   }
 }