Add a containerfile

Containerfile

@@ -0,0 +1,34 @@
+# Environemnt to install flutter and build web
+FROM debian:latest AS build-env
+
+# install all needed stuff
+RUN apt-get update
+RUN apt-get install -y curl tar xz-utils git
+
+# define variables
+ARG FLUTTER_SDK=/usr/local/flutter
+RUN mkdir -p ${FLUTTER_SDK}
+ARG FLUTTER_VERSION=3.19.5
+ARG APP=/app/
+
+RUN curl -l -o /tmp/flutter.tar.xz https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_${FLUTTER_VERSION}-stable.tar.xz
+RUN tar -xf /tmp/flutter.tar.xz -C /usr/local
+
+ENV PATH="$FLUTTER_SDK/bin:$FLUTTER_SDK/bin/cache/dart-sdk/bin:${PATH}"
+
+RUN mkdir $APP
+COPY . $APP
+WORKDIR $APP
+RUN flutter build web
+
+# once heare the app will be compiled and ready to deploy
+
+# use nginx to deploy
+FROM nginx
+
+# copy the info of the builded web app to nginx
+COPY --from=build-env /app/build/web /usr/share/nginx/html
+
+# Expose and run nginx
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]