feat: add linux led control in python (#621)

Author: lucarin91

internal/orchestrator/orchestrator.go

@@ -979,6 +979,28 @@ func getDevices() deviceResult {
 	return res
 }
 
+// addLedControl adds bindings for led control if the paths exist.
+func addLedControl(volumes []volume) []volume {
+	ledsPath := paths.NewPathList(
+		"/sys/class/leds/blue:user",
+		"/sys/class/leds/green:user",
+		"/sys/class/leds/red:user",
+		"/sys/class/leds/blue:bt",
+		"/sys/class/leds/green:wlan",
+		"/sys/class/leds/red:panic",
+	)
+	for _, path := range ledsPath {
+		if path.Exist() {
+			volumes = append(volumes, volume{
+				Type:   "bind",
+				Source: path.String(),
+				Target: path.String(),
+			})
+		}
+	}
+	return volumes
+}
+
 func disconnectSerialFromRPCRouter(ctx context.Context, portAddress string, cfg config.Configuration) func() {
 	var msgPackRouterAddr = cfg.RouterSocketPath().String()
 	c, err := net.Dial("unix", msgPackRouterAddr)

internal/orchestrator/provision.go

@@ -293,6 +293,8 @@ func generateMainComposeFile(
 		}
 	}
 
+	volumes = addLedControl(volumes)
+
 	groups := []string{"dialout", "video", "audio", "render"}
 
 	// Define depends_on conditions
@@ -320,7 +322,7 @@ func generateMainComposeFile(
 			Entrypoint: "/run.sh",
 			DependsOn:  dependsOn,
 			User:       getCurrentUser(),
-			GroupAdd:   groups,
+			GroupAdd:   append(groups, "gpiod"),
 			ExtraHosts: []string{"msgpack-rpc-router:host-gateway"},
 			Labels: map[string]string{
 				DockerAppLabel:     "true",