diff --git a/Dockerfile b/Dockerfile
index a5cdf64..9b175c6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,22 +1,27 @@
-# Base-Image
-FROM ubuntu:latest
 
-# Pakete installieren
-RUN apt-get update
-RUN apt-get install -y build-essential gcc curl vim net-tools
+FROM alpine:latest
+
+RUN apk add --no-cache gcc 
+
 
-# Arbeitsverzeichnis setzen
 WORKDIR /app
+RUN adduser -D appuser && mkdir /output && chown appuser:appuser /app /output
+
 
-# alles kopieren
 COPY . .
+RUN chown appuser:appuser deployment.c
+
+
+USER appuser
+
 
-# Code kompilieren
 RUN gcc -o deployment deployment.c
 
-# Verzeichnis für Ausgabe anlegen
-RUN mkdir /output
 
-# Ausgabe wird ins Container-Dateisystem geschrieben
-ENTRYPOINT ["/bin/bash", "-c"]
-CMD ["./deployment 10 > /output/output.txt && tail -f /output/output.txt"]
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+VOLUME /output
+
+
+HEALTHCHECK --interval=30s --timeout=5s CMD test -f /output/output.txt || exit 1
+
+
+CMD ["sh", "-c", "./deployment 10 > /output/output.txt && tail -f /output/output.txt"]
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