diff --git a/Dockerfile b/Dockerfile
index a5cdf64..a865ceb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 # Base-Image
-FROM ubuntu:latest
+FROM alpine3.20 AS build-env
 
 # Pakete installieren
 RUN apt-get update
-RUN apt-get install -y build-essential gcc curl vim net-tools
+RUN apt-get install --no-cache -y build-essential gcc curl vim net-tools
 
 # Arbeitsverzeichnis setzen
 WORKDIR /app
@@ -17,6 +17,11 @@ RUN gcc -o deployment deployment.c
 # Verzeichnis für Ausgabe anlegen
 RUN mkdir /output
 
+USER appuser
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:8080/health || exit 1
+
 # Ausgabe wird ins Container-Dateisystem geschrieben
 ENTRYPOINT ["/bin/bash", "-c"]
 CMD ["./deployment 10 > /output/output.txt && tail -f /output/output.txt"]
\ No newline at end of file