Dockerfile aktualisiert

Dockerfile

@@ -1,22 +1,29 @@
-# Base-Image
-FROM alpine:3.21
+FROM alpine:3.21 AS builder
 
-# Pakete installieren
-RUN apt-get update
-RUN apt-get install -y build-essential gcc curl vim net-tools
+RUN apk add --no-cache build-base
 
-# Arbeitsverzeichnis setzen
 WORKDIR /app
-
-# alles kopieren
 COPY . .
-
-# Code kompilieren
 RUN gcc -o deployment deployment.c
 
-# Verzeichnis für Ausgabe anlegen
-RUN mkdir /output
+FROM alpine:3.21
 
-# Ausgabe wird ins Container-Dateisystem geschrieben
-ENTRYPOINT ["/bin/bash", "-c"]
+RUN addgroup -g 1000 appgroup && \
+    adduser -D -u 1000 -G appgroup appuser
+
+WORKDIR /app
+
+COPY --from=builder /app/deployment /app/deployment
+
+RUN mkdir /output && \
+    chown -R appuser:appgroup /app /output
+
+USER appuser
+
+VOLUME /output
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD ps | grep -q '[d]eployment' || exit 1
+
+ENTRYPOINT ["/bin/sh", "-c"]
 CMD ["./deployment 10 > /output/output.txt && tail -f /output/output.txt"]