Working alpine docker builds

Author: Thulinma

.dockerignore

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+build
+.git
+Dockerfile
+

Dockerfile.mistserver

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+FROM alpine AS mist_build
+
+RUN apk add --update git patch meson ninja gcc g++ linux-headers
+ADD . /src/
+RUN mkdir /build/; cd /build; meson setup /src -Dlibrist:default_library=static -Dmbedtls:default_library=static -DDEBUG=3 -Dstrip=true; ninja install
+
+FROM alpine
+RUN apk add libstdc++
+COPY --from=mist_build /usr/local/ /usr/local/
+
+LABEL org.opencontainers.image.authors="Jaron Viëtor <jaron.vietor@ddvtech.com>"
+EXPOSE 4242 8080 1935 5554
+ENTRYPOINT ["MistController"]
+HEALTHCHECK CMD ["MistUtilHealth"]
+