FROM node:23-alpine

WORKDIR /home/node
USER node
RUN mkdir -p app/logs && chown -R node:node app
WORKDIR /home/node/app
COPY --chown=node:node package*.json ./
RUN npm install
COPY --chown=node:node main.js util.js worker.js ./
# Expose logs directory as a volume
VOLUME ["/home/node/app/logs"]
# Use an environment variable for thread count (default to 0 to use auto)
ENV THREAD_COUNT=0
# Run the application - using JSON array format
CMD ["sh", "-c", "node main.js ${THREAD_COUNT}"]