Strange behaviour running Solara in Docker

[maercu]

Hi team

I see a super strange behaviour on SOME docker hosts. When running a Solara app in docker, i need to press ctrl+c in the container in order to start the app. When I start the container there is a blank screen, as soon as I press ctrl+c the solara server starts?! Anybody seen something like this before?

Thanks
Marcel

PS: the docker file looks something like this:

FROM python:3.12-slim

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org

COPY . .

CMD [ "solara", "run", "--host=0.0.0.0", "--port", "8080", "frontend.py" ]

[maercu]

It's somehow a signal handling issue, I worked around it with the follwing Docker file

FROM python:3.12-slim

WORKDIR /app

COPY requirements.txt .
RUN apt-get update && apt-get install -y tini && \
    pip install --no-cache-dir -r requirements.txt --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org

COPY . .

ENTRYPOINT ["tini", "--"]
CMD ["solara", "run", "--host=0.0.0.0", "--port", "8080", "frontend.py"]