45 lines
1.3 KiB
Docker
45 lines
1.3 KiB
Docker
# syntax=docker/dockerfile:1.7
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# Stage 1: Build the Flutter web app
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FROM ghcr.io/cirruslabs/flutter:stable AS build
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WORKDIR /app
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ENV PUB_CACHE=/root/.pub-cache
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# Copy pubspec files and get dependencies
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COPY pubspec.yaml pubspec.lock ./
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RUN --mount=type=cache,target=/root/.pub-cache \
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flutter pub get
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# Copy the rest of the app
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COPY . .
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# Build web app
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RUN --mount=type=cache,target=/root/.pub-cache \
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flutter build web --release
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# Create app-version.json if it doesnt exist
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RUN test -f app-version.json || echo '{"version":"__BUILD_PUBLISHED_AT__"}' > app-version.json
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# Stage 2: Serve with nginx
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FROM nginx:alpine
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ARG PUBLISHED_AT
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# Copy the built web app from build stage
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COPY --from=build /app/build/web /usr/share/nginx/html
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# Copy runtime update manifest outside Flutter asset pre-cache.
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COPY --from=build /app/app-version.json /usr/share/nginx/html/app-version.json
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# Fill published_at at image build time (UTC), unless explicitly provided.
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RUN set -eu; \
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published_at="${PUBLISHED_AT:-$(date -u +%Y-%m-%dT%H:%M:%SZ)}"; \
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sed "s|__BUILD_PUBLISHED_AT__|${published_at}|g" /usr/share/nginx/html/app-version.json > /tmp/app-version.json; \
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mv /tmp/app-version.json /usr/share/nginx/html/app-version.json
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# Copy custom nginx config
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COPY nginx.conf /etc/nginx/conf.d/default.conf
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# Expose port
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EXPOSE 80
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CMD ["nginx", "-g", "daemon off;"]
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