FROM python:3.12-slim

# Install envsubst
RUN apt-get update && apt-get install -y gettext

# Dagster libraries to run both dagit and the dagster-daemon. Does not
# need to have access to any pipeline code.

COPY dagster-requirements.txt requirements.txt

RUN pip install uv
RUN uv pip install -r requirements.txt --system
RUN uv pip install polars-lts-cpu --system

# Set $DAGSTER_HOME and copy dagster instance and workspace YAML there
ENV DAGSTER_HOME=/opt/dagster/home/

RUN mkdir -p $DAGSTER_HOME

# COPY dagster.yaml workspace.yaml $DAGSTER_HOME

# Create entrypoint that renders the dagster.yaml from a template
RUN cat << 'EOF' > /entrypoint.sh
#!/bin/sh
set -e

echo "Rendering dagster.yaml from template..."
envsubst < dagster.yaml.template > dagster.yaml

echo "Starting Dagster: $@"
exec "$@"
EOF
RUN chmod +x /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

WORKDIR $DAGSTER_HOME