update Dockerfile

Dockerfile

@@ -81,6 +81,8 @@ rm -rf /data/mongo /data/redis /data/overleaf /data/git-bridge 2>/dev/null || tr
 mkdir -p /data/mongo /data/redis /data/overleaf /data/git-bridge
 mkdir -p /var/log/mongodb /var/log/redis
 chmod -R 777 /data /var/log
+rm -f /var/service/*/supervise/lock 2>/dev/null || true
+rm -f /etc/service/*/supervise/lock 2>/dev/null || true
 sleep 2
 
 echo "=== STARTING MONGODB ==="
@@ -95,8 +97,15 @@ sleep 10
 
 if kill -0 $MONGOPID 2>/dev/null; then
     echo "MongoDB started successfully"
-    sleep 5
-    /usr/local/bin/mongosh --quiet --eval "rs.initiate({_id:'overleaf',members:[{_id:0,host:'127.0.0.1:27017'}]})" 2>/dev/null || true
+    echo "Waiting for MongoDB to be ready..."
+    for i in {1..30}; do
+        if /usr/local/bin/mongosh --quiet --eval "db.adminCommand('ping')" 2>/dev/null | grep -q "1"; then
+            echo "MongoDB ready ($i sec)"
+            /usr/local/bin/mongosh --quiet --eval "rs.initiate({_id:'overleaf',members:[{_id:0,host:'127.0.0.1:27017'}]})" 2>/dev/null || true
+            break
+        fi
+        sleep 1
+    done
 else
     echo "MongoDB FAILED! Log contents:"
     cat /var/log/mongodb/mongodb.log 2>/dev/null || echo "No log file created"