ultimate docker solution

core/runSingbox.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+set -e
+
+tokill=$$
+
+runSingbox(){
+  ./sing-box run &
+  tokill=$!
+}
+
+terminateSingbox()
+{
+  if kill -0 $tokill > /dev/null 2>&1; then
+    echo "Terminating singbox PID=$tokill"
+    kill $tokill
+    while kill -0 $tokill > /dev/null 2>&1; do
+      sleep 1
+    done
+  fi
+}
+
+trap terminateSingbox SIGINT SIGTERM SIGKILL
+
+runSingbox
+
+while true
+do
+    sleep 5
+    if [ -f "signal" ]; then
+        signal=`cat signal`
+        echo "Signal received: $signal"
+        # Remove singnal file
+        rm -f signal >> /dev/null 2>&1
+        case ${signal} in 
+            "stop")
+                terminateSingbox
+                ;;
+            "restart")
+                terminateSingbox
+                runSingbox
+                ;;
+        esac
+    fi
+done