From 3f6c9e3be1d9b0470b187d3e47578d2118a209e8 Mon Sep 17 00:00:00 2001
From: Aaron Voelker <voelkeraa97496@th-nuernberg.de>
Date: Sun, 17 May 2026 16:11:50 +0000
Subject: [PATCH] Dockerfile aktualisiert

---
 Dockerfile | 50 +++++++++++++++++++++++++++++++++++---------------
 1 file changed, 35 insertions(+), 15 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 95f702c..47f34c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,21 +1,41 @@
-# Base-Image
-FROM alpine AS build-env
+# -----------------------
+# 1. BUILD STAGE
+# -----------------------
+FROM gcc:13-alpine AS builder
 
-# Pakete installieren
-RUN akp add --no-cache biuld-base curl
-
-# Arbeitsverzeichnis setzen
 WORKDIR /app
 
-# alles kopieren
-COPY . .
+COPY deployment.c .
 
-# Code kompilieren
-RUN gcc -o deployment deployment.c
+RUN gcc -O2 -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"]
\ No newline at end of file
+# -----------------------
+# 2. RUNTIME STAGE
+# -----------------------
+FROM alpine:latest
+
+# Sicherheitsuser anlegen
+RUN addgroup -S appgroup && adduser -S appuser -G appgroup
+
+WORKDIR /app
+
+# nur Binary übernehmen
+COPY --from=builder /app/deployment /app/deployment
+
+# Output-Verzeichnis
+RUN mkdir /output && chown -R appuser:appgroup /output /app
+
+# Non-root User
+USER appuser
+
+# Volume für Ausgabe
+VOLUME ["/output"]
+
+# Healthcheck (angepasst an dein Programm)
+# Falls es nur einmal läuft: alternative prüfen (siehe Hinweis unten)
+HEALTHCHECK --interval=30s --timeout=3s \
+  CMD test -f /output/output.txt || exit 1
+
+# Start
+CMD ["/app/deployment", "10"]
\ No newline at end of file