🚧 Install pyenv in CUDA image, too

Dockerfile-core-cuda12.1

@@ -9,10 +9,10 @@ ENV PIP_DEFAULT_TIMEOUT=120
 RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries && \
     apt-get update && \
     apt-get install -y \
-      curl xz-utils \
+      build-essential \
-      build-essential python3-dev \
+      curl \
-# For get-pip.py:
+      git \
-      python3-distutils \
+      xz-utils \
 # For add-apt-repository:
       software-properties-common \
 # XML utils
@@ -20,6 +20,17 @@ RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries && \
       xmlstarlet \
 # OCR-D uses ImageMagick for pixel density estimation
       imagemagick \
+# pyenv builds
+# TODO: builder container?
+      libz-dev \
+      libssl-dev \
+      libbz2-dev \
+      liblzma-dev \
+      libncurses-dev \
+      libffi-dev \
+      libreadline-dev \
+      libsqlite3-dev \
+      libmagic-dev \
     && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
@@ -29,14 +40,19 @@ RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries && \
 RUN echo "setOverrideLogLevel(os.getenv('LOG_LEVEL', 'INFO'))" >/etc/ocrd_logging.py
 
 
-# Install pip (and setuptools)
+# Install pyenv
-# We use get-pip.py here to avoid
+# TODO: do not run as root
-# a. having to upgrade from Ubuntu's pip
+# TODO: does just saying "3.7" work as intended?
-# b. the dreaded "old script wrapper" error message
+ENV HOME=/root
-RUN curl -sSL https://bootstrap.pypa.io/pip/3.6/get-pip.py -o get-pip.py && \
+ENV PYENV_ROOT=/usr/local/share/pyenv
-    python3 get-pip.py && \
+ENV PATH=$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH
-    rm -f get-pip.py
+RUN \
-
+    git clone --depth=1 https://github.com/yyuu/pyenv.git $PYENV_ROOT && \
+    pyenv install 3.7 && \
+    pyenv global 3.7 && \
+    pyenv rehash && \
+    pip install -U pip wheel && \
+    pip install setuptools
 
 # Install pip installable-stuff
 RUN ${PIP_INSTALL} \