dockerfile - update to bullseye as base

[isarrider]

Hi,
I am trying to update the dockerfile to be Bullseye lib packets compatible...

ARG DEBIAN_VERSION=bullseye-slim

############################

STEP 1 build executable binary

############################

FROM debian:$DEBIAN_VERSION as builder

RUN apt-get update && apt-get install -y
build-essential
git-core
cmake
pkg-config
subversion
libcurl4-openssl-dev
libgnutls28-dev
libsasl2-dev
uuid-dev
uuid-runtime
libtool
libunistring-dev
libgcrypt20-dev
libmicrohttpd-dev
libltdl-dev
libjson-c-dev
libleptonica-dev
libmosquitto-dev
dh-autoreconf
&& rm -rf /var/lib/apt/lists/*

WORKDIR /vzlogger

RUN git clone https://github.com/volkszaehler/libsml.git --depth 1
&& make install -C libsml/sml

RUN git clone https://github.com/rscada/libmbus.git --depth 1
&& cd libmbus
&& ./build.sh
&& make install

COPY . /vzlogger

RUN cmake -DBUILD_TEST=off
&& make
&& make install

#############################

STEP 2 build a small image

#############################

FROM debian:$DEBIAN_VERSION

LABEL Description="vzlogger"

RUN apt-get update && apt-get install -y
libcurl4
libgnutls30
libsasl2-2
libuuid1
libssl1.1
libgcrypt20
libmicrohttpd12
libltdl7
libatomic1
libjson-c3
liblept5
libmosquitto1
libunistring2
&& rm -rf /var/lib/apt/lists/*

libsml is linked statically => no need to copy

COPY --from=builder /usr/local/bin/vzlogger /usr/local/bin/vzlogger
COPY --from=builder /usr/local/lib/libmbus.so* /usr/local/lib/

without running a user context, no exec is possible and without the dialout group no access to usb ir reader possible

RUN useradd -M -G dialout vz
USER vz

CMD ["vzlogger", "--foreground"]

now the question is what is needed for the STEP 2, where it "only" has to run...

Thoughts?