58 lines
1.3 KiB
Docker
58 lines
1.3 KiB
Docker
# Multi-Stage Build
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# ============================================
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# Build Stage
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# ============================================
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FROM alpine:3.20 AS build
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# Nur die benötigten Pakete installieren mit --no-chache
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RUN apk add --no-cache gcc musl-dev
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# WORKDIR setzen
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WORKDIR /app
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# Source Code kopieren
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COPY . .
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# Compile
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RUN gcc -o deployment deployment.c
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# ============================================
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# Runtime Stage
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# ============================================
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FROM alpine:3.20 AS runtime
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# Curl für den HEALTHCHECK
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RUN apk add --no-cache curl
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# Das output directory erstellen
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RUN mkdir -p /output
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# User ohne Root-Rechte erstellen
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RUN adduser -D app
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# Der User app braucht die Rechte für den Ordner output
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RUN chown -R app:app /output
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# Das Binary aus der Build-Stage kopieren
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COPY --from=build /app/deployment /app/deployment
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# WORKDIR setzen
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WORKDIR /app
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#output als Mount angeben
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VOLUME ["/output"]
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# Auf den app User wechseln
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USER app
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# Programm starten
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ENTRYPOINT ["/bin/sh", "-c"]
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CMD ["./deployment 10 > /output/output.txt && tail -f /output/output.txt"]
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# prüfen ob output.txt existiert und aktualisiert wird
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HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
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CMD [ -f /output/output.txt ] && \
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[ $(find /output/output.txt -mmin -1 | wc -l) -gt 0 ] || exit 1
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