# This image provides a Python 3.7 environment you can use to run your Python
# applications.
FROM registry.fedoraproject.org/f31/s2i-base:latest

EXPOSE 8080

ENV PYTHON_VERSION=3.7 \
    PATH=$HOME/.local/bin/:$PATH \
    PYTHONUNBUFFERED=1 \
    PYTHONIOENCODING=UTF-8 \
    LC_ALL=en_US.UTF-8 \
    LANG=en_US.UTF-8 \
    PIP_NO_CACHE_DIR=off


ENV NAME=python3 \
    VERSION=0 \
    ARCH=x86_64

ENV SUMMARY="Platform for building and running Python $PYTHON_VERSION applications" \
    DESCRIPTION="Python $PYTHON_VERSION available as container is a base platform for \
building and running various Python $PYTHON_VERSION applications and frameworks. \
Python is an easy to learn, powerful programming language. It has efficient high-level \
data structures and a simple but effective approach to object-oriented programming. \
Python's elegant syntax and dynamic typing, together with its interpreted nature, \
make it an ideal language for scripting and rapid application development in many areas \
on most platforms."

LABEL summary="$SUMMARY" \
      description="$DESCRIPTION" \
      io.k8s.description="$DESCRIPTION" \
      io.k8s.display-name="Python 3.7" \
      io.openshift.expose-services="8080:http" \
      io.openshift.tags="builder,python,python37,python-37,rh-python37" \
      com.redhat.component="$NAME" \
      name="$FGC/$NAME" \
      version="$VERSION" \
      usage="s2i build https://github.com/sclorg/s2i-python-container.git --context-dir=3.7/test/setup-test-app/ $FGC/$NAME python-sample-app" \
      maintainer="SoftwareCollections.org <sclorg@redhat.com>"

RUN INSTALL_PKGS="python3 python3-devel python3-setuptools python3-pip python3-virtualenv \
        nss_wrapper httpd httpd-devel atlas-devel gcc-gfortran \
        libffi-devel libtool-ltdl enchant redhat-rpm-config" && \
    dnf -y --setopt=tsflags=nodocs install $INSTALL_PKGS && \
    rpm -V $INSTALL_PKGS && \
    dnf -y clean all --enablerepo='*'

# Copy the S2I scripts from the specific language image to $STI_SCRIPTS_PATH.
COPY ./s2i/bin/ $STI_SCRIPTS_PATH

# Copy extra files to the image.
COPY ./root/ /

# - Create a Python virtual environment for use by any application to avoid
#   potential conflicts with Python packages preinstalled in the main Python
#   installation.
# - In order to drop the root user, we have to make some directories world
#   writable as OpenShift default security model is to run the container
#   under random UID.
RUN python3.7 -m venv ${APP_ROOT} && \
chown -R 1001:0 ${APP_ROOT} && \
fix-permissions ${APP_ROOT} -P

# For Fedora scl_enable isn't sourced automatically in s2i-core
# so virtualenv needs to be activated this way
ENV BASH_ENV="${APP_ROOT}/bin/activate" \
    ENV="${APP_ROOT}/bin/activate" \
    PROMPT_COMMAND=". ${APP_ROOT}/bin/activate"

USER 1001

# Set the default CMD to print the usage of the language image.
CMD $STI_SCRIPTS_PATH/usage