FROM python:3-slim

# Ref: https://pythonspeed.com/articles/activate-virtualenv-dockerfile/

# Install dependencies
RUN apt-get --yes --quiet --quiet update && \
    apt-get --yes --quiet --quiet install wget g++ && \
    rm -rf /var/lib/apt/lists/*

# Set Python to show logs as they occur
ENV PYTHONUNBUFFERED=0
ENV PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION='python'

# Download the gRPC health probe -- not needed here... health will be asserted using HTTP
# RUN GRPC_HEALTH_PROBE_VERSION=v0.2.0 && \
#     wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
#     chmod +x /bin/grpc_health_probe

# creating a user for security reasons
RUN groupadd -r webui && useradd --no-log-init -r -m -g webui webui
USER webui

# set working directory
RUN mkdir -p /home/webui/teraflow
WORKDIR /home/webui/teraflow

# Get Python packages per module
ENV VIRTUAL_ENV=/home/webui/venv
RUN python3 -m venv ${VIRTUAL_ENV}
ENV PATH="${VIRTUAL_ENV}/bin:${PATH}"
COPY --chown=webui:webui webui/requirements.in /home/webui/teraflow/webui/requirements.in
RUN pip install --upgrade pip setuptools wheel pip-tools && pip-compile --output-file=webui/requirements.txt webui/requirements.in
RUN pip install -r webui/requirements.txt

# Add files into working directory
COPY --chown=webui:webui common/. common
COPY --chown=webui:webui context/__init__.py context/__init__.py
COPY --chown=webui:webui context/proto/. context/proto
COPY --chown=webui:webui context/client/. context/client
COPY --chown=webui:webui device/__init__.py device/__init__.py
COPY --chown=webui:webui device/proto/. device/proto
COPY --chown=webui:webui device/client/. device/client
COPY --chown=webui:webui webui/. webui

# Start webui service
ENTRYPOINT ["python", "-m", "webui.service"]
