Dockerfile

#Stage 1 - Install dependencies and build the app
FROM debian:latest AS build-env

# Install flutter dependencies
RUN apt-get update 
RUN apt-get install -y curl git wget unzip libgconf-2-4 libstdc++6 fonts-droid-fallback python3
RUN apt-get clean

# Clone the flutter repo
RUN git clone https://github.com/flutter/flutter.git /usr/local/flutter

# Set flutter path
# RUN /usr/local/flutter/bin/flutter doctor -v
ENV PATH="/usr/local/flutter/bin:/usr/local/flutter/bin/cache/dart-sdk/bin:${PATH}"

# Run flutter doctor
RUN flutter doctor -v
# Enable flutter web
RUN flutter channel master
RUN flutter upgrade
RUN flutter config --enable-web

# Copy files to container and build
RUN mkdir /app/
COPY . /app/
WORKDIR /app/
RUN flutter build web --release

# Generate web worker JS file
RUN mkdir -p build/web/lib/simulator && dart compile js lib/simulator/vehicle_event_worker.dart -o build/web/lib/simulator/vehicle_event_worker.js

# Stage 2 - Create the run-time image
FROM nginx:1.21.1-alpine
COPY --from=build-env /app/build/web /usr/share/nginx/html
COPY --from=build-env /app/nginx.conf /etc/nginx/conf.d/

EXPOSE 8086

CMD ["nginx", "-g", "daemon off;"]