# Use the official NGINX image as a parent image
FROM nginx:alpine

# Set environment variables with default values
ENV BACKEND_HOST=localhost
ENV BACKEND_TCP_PORT=80
ENV BACKEND_UDP_PORT=12345

# Copy the script and configuration template into the container
COPY entrypoint.sh /entrypoint.sh
COPY nginx.conf.template /etc/nginx/nginx.conf.template

# Make the script executable
RUN chmod +x /entrypoint.sh

# Use the script as the entrypoint
ENTRYPOINT ["/entrypoint.sh"]