docker/app/Dockerfile
FROM ruby:3.3.1
ENV APP_PATH=/app \
BUNDLE_PATH=/gems
RUN apt-get update -qq && apt-get install -y \
build-essential \
libpq-dev \
nodejs
RUN mkdir -p $APP_PATH
WORKDIR $APP_PATH
# Copy the main application.
ADD . $APP_PATH
EXPOSE 3000
CMD ./bin/rails server -b 0.0.0.0