Connector not found inside dockerized app

[therockf]

Hello,
i am trying to dockerize memflow.
Initially i tried with normal memflow, now i am trying with memflow-py

This is my dockerfile:

FROM python:3.8-slim-bullseye

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y \
        build-essential \
        curl \
        git \
        libbz2-dev \
        libncurses5-dev \
        libncursesw5-dev \
        libreadline-dev \
        libsqlite3-dev \
        libssl-dev \
        llvm \
        make \
        tk-dev \
        wget \
        xz-utils \
        zlib1g-dev \
        gcc \
        locales \
        python3-venv \
        python3-dev \
        procps \
        sudo
        
RUN echo 'vm.overcommit_memory=1' >> /etc/sysctl.conf

RUN sed -i '/it_IT.UTF-8/s/^# //g' /etc/locale.gen && \
    locale-gen
ENV LANG it_IT.UTF-8  
ENV LANGUAGE it_IT:it  
ENV LC_ALL it_IT.UTF-8

RUN curl https://sh.rustup.rs -sSf | bash -s -- -y

ENV PATH="/root/.cargo/bin:${PATH}"

RUN cargo install memflowup --force

RUN /root/.cargo/bin/memflowup install memflow-qemu
RUN /root/.cargo/bin/memflowup install memflow-win32

COPY requirements.txt .

RUN pip3 install --no-cache --upgrade pip setuptools
RUN pip3 install wheel
RUN pip3 install -r requirements.txt

WORKDIR /app

COPY main.py .
COPY utils.py .
COPY offsets.py .
COPY config.py .
COPY entrypoint.sh .
RUN chmod +x entrypoint.sh

CMD ["./entrypoint.sh"]

In both cases it looks like the code can't find the connectors. But they are installed correctly.

qemu-readmem-python           |   File "/app/./utils.py", line 50, in read_memory
qemu-readmem-python           |     connector = inventory.create_connector("qemu")
qemu-readmem-python           | Exception: connector: specified (connector) target could not be found

but the connectors are there:

qemuuser@2b9a84bb6e7b:/app$ ls $HOME/.local/lib/memflow/
libmemflow_qemu.stable.so  libmemflow_win32.stable.so

the user is correct:

qemuuser@2b9a84bb6e7b:/app$ ps -u qemuuser | grep uwsgi
      9 ?        00:00:02 uwsgi
     27 ?        00:00:00 uwsgi
     31 ?        00:00:00 uwsgi

This also happens using normal Rust memflow.

Inside a dockerized app, this results in connector not found.:

    let inventory = Inventory::scan();
    let connector = inventory
        .create_connector("qemu", None, connector_args.as_ref())
        .expect("unable to initialize qemu connector");

That doesn't happen if running outside docker! What is wrong there?

I have also tried manually adding the scan dir to the inventory buut nothing changes!

[danielnehrig]

what does the memflow logger output say regarding scanning dirs and found connectors

simple_logger::init_with_level(log::Level::Info).unwrap();

[therockf]

simple_logger::init_with_level(log::Level::Info).unwrap();

Just nothing, I have also tried that inside docker container, looks like it doesn't find any connector, tried to put in .local and in /usr/local/etc.... and also tried manually adding the directory to the inventory, but nothing worked.

[danielnehrig]

you mean you get no stdout at all ?

[therockf]

you mean you get no stdout at all ?

Yep. Scanning dirs I see no stdout, then when printing the output from the inventory scan it doesn't print anything too