different way to install pyenv

Author: joernhees

Dockerfile

@@ -1,15 +1,17 @@
 # batteries included (virtuoso for run on cluster with local db)
 FROM joernhees/virtuoso:latest
 
+ENV HOME="/root"
+WORKDIR $HOME
 ENTRYPOINT []
-RUN export LC_ALL=C \
-    && ln -s /usr/bin/isql-vt /usr/local/bin/isql
+RUN ln -s /usr/bin/isql-vt /usr/local/bin/isql
 RUN apt-get update \
     && apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev git lzop
-RUN curl -L https://raw.githubusercontent.com/pyenv/pyenv-installer/master/bin/pyenv-installer | bash \
-    && export PATH="/usr/local/var/pyenv/bin:$PATH" \
-    && export PYENV_ROOT="$HOME/.pyenv" \
-    && eval "$(pyenv init --path)"
+
+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 2.7.18 \
     && pyenv global 2.7.18 \
     && pip install --upgrade pip virtualenv