Dockerfile

FROM ubuntu:focal

ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && \
    apt-get -y install --no-install-recommends \
      ca-certificates zsh git curl wget \
      make build-essential llvm\
      libssl-dev \
      zlib1g-dev \
      libbz2-dev \
      libreadline-dev \
      libsqlite3-dev \
      libncurses5-dev \
      xz-utils \
      tk-dev \
      libxml2-dev \
      libxmlsec1-dev \
      libffi-dev \
      liblzma-dev \
      && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

RUN useradd -ms /bin/bash tester
WORKDIR /home/tester
RUN chown -R tester .
USER tester
ENV HOME /home/tester

RUN git clone --depth=1 https://github.com/pyenv/pyenv.git .pyenv
ENV PYENV_ROOT="$HOME/.pyenv"
ENV PATH="$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH"
RUN pyenv install 3.9.0
RUN pyenv global 3.9.0
# RUN pyenv rehash