feat: Ability to override commands args

In order to override the arguments which are used e.g. to call smartctl, they need to be bind to the respective environment variable.

Author: datenzar

collector/pkg/config/config.go

@@ -48,6 +48,16 @@ func (c *configuration) Init() error {
 	c.SetDefault("commands.metrics_info_args", "--info --json")
 	c.SetDefault("commands.metrics_smart_args", "--xall --json")
 
+	// Bind environment variables with COLLECTOR_ prefix
+	c.BindEnv("host.id", "COLLECTOR_HOST_ID")
+	c.BindEnv("log.level", "COLLECTOR_LOG_LEVEL")
+	c.BindEnv("log.file", "COLLECTOR_LOG_FILE")
+	c.BindEnv("api.endpoint", "COLLECTOR_API_ENDPOINT")
+	c.BindEnv("commands.metrics_smartctl_bin", "COLLECTOR_COMMANDS_METRICS_SMARTCTL_BIN")
+	c.BindEnv("commands.metrics_scan_args", "COLLECTOR_COMMANDS_METRICS_SCAN_ARGS")
+	c.BindEnv("commands.metrics_info_args", "COLLECTOR_COMMANDS_METRICS_INFO_ARGS") 
+	c.BindEnv("commands.metrics_smart_args", "COLLECTOR_COMMANDS_METRICS_SMART_ARGS")
+	
 	//c.SetDefault("collect.short.command", "-a -o on -S on")
 
 	c.SetDefault("allow_listed_devices", []string{})