diff --git a/Dockerfile b/Dockerfile
index 0bdc589..47d5384 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -64,5 +64,6 @@ EXPOSE 3000
 
 COPY root/ /
 
-# default command
+HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 CMD /healthcheck.sh
+
 CMD ["sh","/start.sh"]
diff --git a/root/healthcheck.sh b/root/healthcheck.sh
new file mode 100755
index 0000000..f800c43
--- /dev/null
+++ b/root/healthcheck.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Check TFTP (UDP 69)
+if ! nc -z -u -w2 127.0.0.1 69; then
+  echo "TFTP check failed"
+  exit 1
+fi
+
+# Check HTTP (nginx)
+if ! curl -fs http://127.0.0.1:${NGINX_PORT:-80}/ > /dev/null; then
+  echo "HTTP check failed"
+  exit 1
+fi
+
+# Check Web App
+if ! curl -fs http://127.0.0.1:${WEB_APP_PORT:-3000}/ > /dev/null; then
+  echo "Web App check failed"
+  exit 1
+fi
+
+exit 0