Merge branch 'feat/docker_web'
This commit is contained in:
commit
a354efb0b1
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@ -0,0 +1,46 @@
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# Prevent leaking host-specific caches/paths into the image
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.dockerignore
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.git
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.gitignore
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.idea
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.vscode
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**/.DS_Store
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build/
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.dart_tool/
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.flutter-plugins
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.flutter-plugins-dependencies
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.packages
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pubspec.lock # keep if you want reproducible, comment out to include
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# Flutter/Platform build outputs
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android/
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ios/
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linux/
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macos/
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windows/
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web/.dart_tool/
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# Tests and dev artifacts (optional, not needed in image build stage)
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test/
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integration_test/
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coverage/
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custom_lint.log
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test_cache/
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unit_test_assets/
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# Docs and repo meta to avoid cache busting
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docs/
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**/*.md
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wireframe.assets/
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AGENTS.md
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README.md
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LICENSE
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# Packaging artifacts not needed for web image
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AppDir/
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AppRun
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pdf_signature.desktop
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tool/
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*.iml
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*.ipr
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*.iws
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.github/
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.husky/
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@ -0,0 +1,93 @@
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name: Publish Docker image
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on:
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push:
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branches: [ "main" ]
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tags:
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- "v*"
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workflow_dispatch:
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permissions:
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contents: read
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packages: write
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env:
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REGISTRY: docker.io
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IMAGE_NAME: ${{ github.repository }}
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jobs:
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build-and-push:
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name: Build and push image
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runs-on: ubuntu-latest
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concurrency:
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group: docker-${{ github.ref }}
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cancel-in-progress: false
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Set up QEMU (for multi-arch builds)
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uses: docker/setup-qemu-action@v3
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Cache Docker layers
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uses: actions/cache@v4
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with:
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path: /tmp/.buildx-cache
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key: ${{ runner.os }}-buildx-${{ hashFiles('Dockerfile', 'pubspec.lock') }}
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restore-keys: |
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${{ runner.os }}-buildx-
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# Docker Hub login (active)
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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registry: docker.io
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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# GHCR login (commented out for future usage)
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# - name: Log in to GitHub Container Registry
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# uses: docker/login-action@v3
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# with:
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# registry: ghcr.io
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# username: ${{ github.actor }}
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# password: ${{ secrets.GITHUB_TOKEN }}
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- name: Extract Docker metadata (tags, labels)
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: |
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${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=ref,event=branch
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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flavor: |
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latest=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
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token: ${{ secrets.GITHUB_TOKEN }}
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- name: Build and push
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uses: docker/build-push-action@v6
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with:
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context: .
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file: ./Dockerfile
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platforms: linux/amd64
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push: ${{ github.event_name != 'pull_request' }}
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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cache-from: type=local,src=/tmp/.buildx-cache
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cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max
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- name: Move cache
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if: always()
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run: |
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if [ -d /tmp/.buildx-cache-new ]; then
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rm -rf /tmp/.buildx-cache
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mv /tmp/.buildx-cache-new /tmp/.buildx-cache
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else
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echo "No new cache to move"
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fi
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@ -125,6 +125,7 @@ devtools_options.yaml
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test/features/*_test.dart
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**/app_localizations*.dart
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.env
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.secrets
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docs/wireframe.assets/*.excalidraw.svg
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docs/wireframe.assets/*.svg
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docs/wireframe.assets/*.png
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@ -0,0 +1,54 @@
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# syntax=docker/dockerfile:1.7-labs
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## Two-stage build for minimal Flutter web static server (Caddy runtime)
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# Stage 1: Build the Flutter web app
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FROM ghcr.io/cirruslabs/flutter:latest AS build
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WORKDIR /app
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# Copy pubspec first for better layer caching
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COPY pubspec.* ./
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# Use BuildKit cache for Dart pub cache
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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 project
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COPY . .
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# Ensure no host caches leak into the container; use BuildKit caches for pub and Flutter
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RUN --mount=type=cache,target=/root/.pub-cache \
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--mount=type=cache,target=/sdks/flutter/bin/cache \
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rm -rf .dart_tool build && \
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flutter pub get && \
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flutter gen-l10n && \
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flutter build web --release -O4 --wasm
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# Stage 2: Caddy (Alpine) to serve static files with SPA fallback
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FROM caddy:2-alpine AS runtime
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WORKDIR /usr/share/caddy
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# Copy built web assets
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COPY --from=build /app/build/web/ /usr/share/caddy/
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# Write Caddyfile inline (listens on :8080 and SPA fallback)
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ENV PORT=8080
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RUN cat > /etc/caddy/Caddyfile <<'CADDY'
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{
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admin off
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}
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:{$PORT} {
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root * /usr/share/caddy
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encode zstd gzip
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# SPA fallback: serve index.html if file not found
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try_files {path} /index.html
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file_server
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}
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CADDY
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# Some platforms (e.g., gVisor/Firecracker like Render) forbid file capabilities; strip and copy to a clean path
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USER root
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RUN apk add --no-cache libcap && \
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(setcap -r /usr/bin/caddy || true) && \
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install -m 0755 /usr/bin/caddy /caddy && \
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apk del libcap
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# Use numeric UID/GID for caddy to avoid passwd lookup issues across platforms
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USER 65532:65532
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EXPOSE 8080
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ENTRYPOINT ["/caddy", "run", "--config", "/etc/caddy/Caddyfile", "--adapter", "caddyfile"]
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22
README.md
22
README.md
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@ -39,13 +39,33 @@ flutter build windows
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flutter pub run msix:create
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```
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For web
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#### web
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```bash
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flutter build web
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# flutter build web --release -O4 --wasm
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```
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Open the `index.html` file in the `build/web` directory. Remove the `<base href="/">` to ensure proper routing on GitHub Pages.
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##### Docker
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To build and run a minimal Docker image serving static Flutter web files:
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```bash
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# Build the Docker image
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docker build -t pdf_signature .
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# Run the container (serves static files on port 8080)
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docker run --rm -p 8080:8080 pdf_signature
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# act push -P ubuntu-latest=catthehacker/ubuntu:act-latest --container-options "--privileged" --env-file .env --secret-file .secrets
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```
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Access your app at [http://localhost:8080](http://localhost:8080)
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#### Linux
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For Linux
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```bash
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flutter build linux
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cp -r build/linux/x64/release/bundle/ AppDir
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|
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