Dockerfile Expose Example [repack] -

CMD ["npm", "start"] FROM python:3.11-slim WORKDIR /app

: EXPOSE is metadata. Always use -p or -P when running containers to actually access the ports! dockerfile expose example

COPY . . EXPOSE 8000/tcp # Main web application EXPOSE 8080/tcp # Admin interface EXPOSE 5432/tcp # Internal database (documentation only) UDP port example EXPOSE 53/udp # DNS service Port range (if supported by your container runtime) EXPOSE 9000-9010/tcp CMD ["npm", "start"] FROM python:3