Flutter web | failed to create Docker file - flutter

Question

Below issue facing while creating docker file in flutter web
enter image description here
anyone have idea about how to create docker file in flutter web.....
I tried many resources but still stuck in issue...
resource or link or solution about same

Answer 1

It is hard to help you without seeing your Dockerfile.
This is the multistaged one I use with nginx:
#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 gdb libstdc++6 libglu1-mesa fonts-droid-fallback lib32stdc++6 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 create .
RUN flutter build web
# Stage 2 - Create the run-time image
FROM nginx:1.21.1-alpine
COPY --from=build-env /app/build/web /usr/share/nginx/html
If you need a highly optimized image I would not use this one. How ever it does the trick for me.