Dockerfile aktualisiert

Dockerfile

@@ -1,27 +1,21 @@
-FROM alpine:latest
+FROM alpine:3.19 AS builder
+RUN apk add --no-cache gcc musl-dev
+WORKDIR /app
+COPY deployment.c .
+RUN gcc -static -O2 -s -o deployment deployment.c && strip deployment
 
-RUN apk add --no-cache build-base && \
+FROM alpine:3.19
-    rm -rf /var/cache/apk/*
+RUN apk add --no-cache bash coreutils && rm -rf /var/cache/apk/*
+RUN addgroup -g 1000 appuser && adduser -u 1000 -G appuser -s /bin/bash -D appuser
+RUN mkdir -p /app /output && chown -R appuser:appuser /app /output
 
-RUN addgroup -S -g 10001 appgroup && \
+COPY --from=builder --chown=appuser:appuser /app/deployment /app/
-    adduser -S -u 10001 -G appgroup -h /app -s /bin/sh appuser
 
 WORKDIR /app
-
-COPY --chown=appuser:appgroup . .
-
-USER appuser
-RUN gcc -o deployment deployment.c -O2 -static 
-
-USER root
-
-RUN mkdir -p /output && \
-    chown -R appuser:appgroup /output && \
-    chmod -R 755 /output
-
 VOLUME ["/output"]
-
 USER appuser
 
-ENTRYPOINT ["/bin/sh", "-c"]
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-CMD ["./deployment 10 > /output/output.txt 2>&1 && exec tail -f /output/output.txt"]
+    CMD test -f /output/output.txt || exit 1
+
+CMD ["/bin/bash", "-c", "./deployment 10 > /output/output.txt && tail -f /output/output.txt"]