Trouble installing pip packages via poetry in running container

General
1

I’m trying to use Docker alongside Jenkins for my CI test environment to build some python tools and I’m having trouble installing some pip packages with poetry.

Build script:

#!/bin/bash -x
export PIP_CACHE_DIR=${WORKSPACE}/.cache
python3 -m venv testing-venv
source testing-venv/bin/activate
pip3 install poetry amaranth git+https://github.com/CapableRobot/CapableRobot_USBHub_Driver --upgrade
poetry install
deactivate

Error: LockFailed - failed to create /.cache/pypoetry/cache/repositories/pypi/_http/0/2/a/8/b/2f84c1a79330-fd479700.855145880276316118529

and I was wondering if anyone had some advice. Full output of the Jenkins build can be found here here: Started by user jenkinsReplayed #12Running as jenkinsConnecting to https:/ - Pastebin.com

Jenkins itself is running as a Docker container on an Ubuntu host, then my actual build environment that gets run by Jenkins is defined as follows:

# Use the official image as a parent image
FROM ubuntu:20.04
CMD ["/bin/bash"]

# Override interactive installations and install dependencies
ENV DEBIAN_FRONTEND=noninteractive 
RUN apt-get update && apt-get install -y \
    bison \
    build-essential \
    clang \
    cmake \
    curl \
    dfu-util \
    flex \
    gawk \
    gcc-arm-none-eabi \
    git \
    jq \
    libboost-all-dev \
    libeigen3-dev \
    libreadline-dev \
    openocd \
    pkg-config \
    python3 \
    python3-pip \
    python3-venv \
    python-is-python3 \
    tcl \
    tcl-dev \
    zlib1g-dev \
    && rm -rf /var/lib/apt/lists/*
RUN pip3 install poetry amaranth git+https://github.com/CapableRobot/CapableRobot_USBHub_Driver --upgrade

# build oss-cad-suite from source
ARG CACHEBUST=1
RUN curl -L $(curl -s "https://api.github.com/repos/YosysHQ/oss-cad-suite-build/releases/latest" \
    | jq --raw-output '.assets[].browser_download_url' | grep "linux-x64") --output oss-cad-suite-linux-x64.tgz \
    && tar zxvf oss-cad-suite-linux-x64.tgz

# add to PATH for pip/source package installations
ENV PATH="/root/.local/bin:/home/jenkins/oss-cad-suite/bin:$PATH"

# Inform Docker that the container is listening on port 8080 at runtime
EXPOSE 8080

I also provide some additional build args to the container via Jenkinsfile:

pipeline {
    agent { 
        dockerfile {
            additionalBuildArgs '--build-arg CACHEBUST=$(date +%s)'
            args '--group-add=46 --privileged --device-cgroup-rule="c 189:* rmw" -v /dev/bus/usb:/dev/bus/usb'
        }
    }
...
}