Update base image digests (Wolfi security update)

Make versioned tags immutable
- Full release (3.38.9): creates web-3.38.9 + web-latest - Prerelease (3.38.9-rebuild-20260203): creates web-3.38.9-rebuild-20260203 + web-dev - Versioned tags never get overwritten after initial publish Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-04 13:00:08 +00:00 · 2026-02-03 04:25:21 -05:00 · 2026-02-03 04:19:56 -05:00 · 2026-02-03 04:11:12 -05:00 · 2026-02-03 04:09:32 -05:00 · 2026-02-03 04:08:28 -05:00
7 changed files with 397 additions and 14 deletions
--- a/.base-digests
+++ b/.base-digests
@ -0,0 +1,3 @@
+web=sha256:cce6d72541facea17321cb7f76fc8947c54335a3675cabe64214efad366240f4
+android=sha256:489f3cbd316bd66d3475430b69e1b32f87606a63f8837c3588b04da83b7509ff
+linux=sha256:2c77cba8eb20114f45d7b9d97d5d6773fa542c72cb6252d6f1c00de9fb4c7e95
--- a/.gitea/workflows/publish.yaml
+++ b/.gitea/workflows/publish.yaml
@ -5,7 +5,7 @@ on:
    types: [published, prereleased]

 permissions:
-  contents: read
+  contents: write

 env:
  IMAGE_NAME: flutter-sdk
@ -33,16 +33,18 @@ jobs:
        id: version
        run: |
          if [[ "${{ github.event.release.prerelease }}" == "true" ]]; then
-            # Pre-release: fetch latest stable version, tag as dev
-            FLUTTER_VERSION=$(curl -fsSL https://storage.googleapis.com/flutter_infra_release/releases/releases_linux.json \
-              | jq -r '.current_release.stable as $hash | .releases[] | select(.hash == $hash and .channel == "stable") | .version')
-            echo "flutter_version=${FLUTTER_VERSION}" >> $GITHUB_OUTPUT
-            echo "tag=${{ matrix.variant }}-dev" >> $GITHUB_OUTPUT
-            echo "Using latest Flutter stable ${FLUTTER_VERSION} for pre-release test"
+            # Pre-release: use release tag as version, don't overwrite existing tags
+            # Extract base Flutter version for build-arg (e.g., 3.38.9 from 3.38.9-rebuild-20260203)
+            BASE_VERSION=$(echo "${{ github.event.release.tag_name }}" | grep -oP '^[0-9]+\.[0-9]+\.[0-9]+')
+            echo "flutter_version=${BASE_VERSION}" >> $GITHUB_OUTPUT
+            echo "tag=${{ matrix.variant }}-${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
+            echo "secondary_tag=${{ matrix.variant }}-dev" >> $GITHUB_OUTPUT
+            echo "Pre-release: building Flutter ${BASE_VERSION}, tagging as ${{ github.event.release.tag_name }}"
          else
            # Full release: use the release tag as the Flutter version
            echo "flutter_version=${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
-            echo "tag=${{ matrix.variant }}-latest" >> $GITHUB_OUTPUT
+            echo "tag=${{ matrix.variant }}-${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
+            echo "secondary_tag=${{ matrix.variant }}-latest" >> $GITHUB_OUTPUT
          fi

      - name: Set up QEMU
@ -67,7 +69,7 @@ jobs:
          load: true
          build-args: |
            FLUTTER_VERSION=${{ steps.version.outputs.flutter_version }}
-          tags: ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
+          tags: ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.tag }}

      - name: Install Docker Scout
        run: |
@ -76,7 +78,7 @@ jobs:

      - name: Docker Scout CVE Scan
        run: |
-          docker scout cves ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }} --only-severity critical,high
+          docker scout cves ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.tag }} --only-severity critical,high

      - name: Build and push with attestations
        uses: docker/build-push-action@v5
@ -90,10 +92,45 @@ jobs:
          build-args: |
            FLUTTER_VERSION=${{ steps.version.outputs.flutter_version }}
          tags: |
-            ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
            ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.tag }}
+            ${{ secrets.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.secondary_tag }}
          labels: |
            org.opencontainers.image.title=${{ env.IMAGE_NAME }}
            org.opencontainers.image.description=${{ matrix.description }}
-            org.opencontainers.image.version=${{ matrix.variant }}-${{ steps.version.outputs.flutter_version }}
+            org.opencontainers.image.version=${{ steps.version.outputs.tag }}
            org.opencontainers.image.revision=${{ github.sha }}
+
+  sync-readme:
+    needs: build-and-push
+    if: github.event.release.prerelease == false && !contains(github.event.release.tag_name, 'test')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Update README badges
+        run: |
+          FLUTTER="${{ github.event.release.tag_name }}"
+          ANDROID_SDK=$(grep -oP 'ANDROID_BUILD_TOOLS=\K[0-9.]+' Dockerfile.android || echo "")
+
+          if [ -n "$ANDROID_SDK" ]; then
+            sed -i "s|Android%20SDK-[0-9.]*-green|Android%20SDK-${ANDROID_SDK}-green|g" README.md
+          fi
+
+          if [ -n "$FLUTTER" ]; then
+            sed -i "s|web--[0-9.]*-blue|web--${FLUTTER}-blue|g" README.md
+            sed -i "s|android--[0-9.]*-blue|android--${FLUTTER}-blue|g" README.md
+            sed -i "s|linux--[0-9.]*-blue|linux--${FLUTTER}-blue|g" README.md
+            sed -i "s|/web-[0-9.]*?|/web-${FLUTTER}?|g" README.md
+            sed -i "s|/android-[0-9.]*?|/android-${FLUTTER}?|g" README.md
+            sed -i "s|/linux-[0-9.]*?|/linux-${FLUTTER}?|g" README.md
+          fi
+
+      - name: Commit and push
+        run: |
+          git diff --quiet README.md && exit 0
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add README.md
+          git commit -m "Update README badges to Flutter ${{ github.event.release.tag_name }}"
+          git push
--- a/.gitea/workflows/update-check.yaml
+++ b/.gitea/workflows/update-check.yaml
@ -1,4 +1,4 @@
-name: Check for Flutter SDK and Android SDK Updates
+name: Check for Flutter SDK, Android SDK, and Base Image Updates

 on:
  schedule:
@ -96,6 +96,76 @@ jobs:

          echo "needs_update=${NEEDS_UPDATE}" >> $GITHUB_OUTPUT

+      - name: Check Wolfi base image updates
+        id: base_images
+        run: |
+          # Get current digests from Docker Hub
+          WEB_DIGEST=$(curl -s "https://hub.docker.com/v2/repositories/svrnty/base-distro/tags/flutter-sdk-latest" | jq -r '.digest // empty')
+          ANDROID_DIGEST=$(curl -s "https://hub.docker.com/v2/repositories/svrnty/base-distro/tags/flutter-sdk-android-latest" | jq -r '.digest // empty')
+          LINUX_DIGEST=$(curl -s "https://hub.docker.com/v2/repositories/svrnty/base-distro/tags/flutter-sdk-linux-latest" | jq -r '.digest // empty')
+
+          echo "Current base image digests:"
+          echo "  web: ${WEB_DIGEST}"
+          echo "  android: ${ANDROID_DIGEST}"
+          echo "  linux: ${LINUX_DIGEST}"
+
+          # Load stored digests
+          STORED_WEB=$(grep '^web=' .base-digests 2>/dev/null | cut -d= -f2 || echo "")
+          STORED_ANDROID=$(grep '^android=' .base-digests 2>/dev/null | cut -d= -f2 || echo "")
+          STORED_LINUX=$(grep '^linux=' .base-digests 2>/dev/null | cut -d= -f2 || echo "")
+
+          # Compare
+          NEEDS_REBUILD=false
+          if [ -n "$WEB_DIGEST" ] && [ "$WEB_DIGEST" != "$STORED_WEB" ]; then
+            echo "Web base image updated"
+            NEEDS_REBUILD=true
+          fi
+          if [ -n "$ANDROID_DIGEST" ] && [ "$ANDROID_DIGEST" != "$STORED_ANDROID" ]; then
+            echo "Android base image updated"
+            NEEDS_REBUILD=true
+          fi
+          if [ -n "$LINUX_DIGEST" ] && [ "$LINUX_DIGEST" != "$STORED_LINUX" ]; then
+            echo "Linux base image updated"
+            NEEDS_REBUILD=true
+          fi
+
+          echo "needs_rebuild=${NEEDS_REBUILD}" >> $GITHUB_OUTPUT
+          echo "web_digest=${WEB_DIGEST}" >> $GITHUB_OUTPUT
+          echo "android_digest=${ANDROID_DIGEST}" >> $GITHUB_OUTPUT
+          echo "linux_digest=${LINUX_DIGEST}" >> $GITHUB_OUTPUT
+
+      - name: Trigger rebuild for base image updates
+        if: steps.base_images.outputs.needs_rebuild == 'true' && steps.existing.outputs.exists == 'true'
+        run: |
+          VERSION="${{ steps.flutter.outputs.version }}"
+          echo "Base image updated, triggering rebuild for Flutter ${VERSION}"
+
+          # Update stored digests
+          cat > .base-digests << EOF
+          web=${{ steps.base_images.outputs.web_digest }}
+          android=${{ steps.base_images.outputs.android_digest }}
+          linux=${{ steps.base_images.outputs.linux_digest }}
+          EOF
+
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add .base-digests
+          git commit -m "Update base image digests (Wolfi security update)"
+          git push
+
+          # Trigger rebuild by creating a prerelease
+          curl -fsSL -X POST \
+            -H "Authorization: token ${{ secrets.GITEA_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases" \
+            -d "{
+              \"tag_name\": \"${VERSION}-rebuild-$(date +%Y%m%d)\",
+              \"name\": \"Security rebuild ${VERSION}\",
+              \"body\": \"Automated rebuild for Wolfi base image security updates\",
+              \"draft\": false,
+              \"prerelease\": true
+            }"
+
      - name: Create release for new Flutter version
        if: steps.existing.outputs.exists == 'false' && steps.flutter.outputs.version != ''
        run: |
--- a/DOCKERHUB.md
+++ b/DOCKERHUB.md
@ -0,0 +1,131 @@
+# Flutter SDK Docker Images
+
+<a href="https://git.openharbor.io/svrnty/docker-flutter-sdk" target="_blank"><img src="https://img.shields.io/badge/Git-Repository-orange?logo=gitea" alt="Git Repository"></a>
+<a href="https://wolfi.dev" target="_blank"><img src="https://img.shields.io/badge/Base-Wolfi-purple?logo=linux" alt="Wolfi"></a>
+
+Lightweight Flutter SDK images for CI/CD pipelines. Built on [Wolfi](https://wolfi.dev), a security-focused Linux distribution designed for containers.
+
+## Variants
+
+- `web` - Web/WASM builds
+- `android` - Android APK/AAB builds
+- `linux` - Linux desktop builds
+
+All variants support `linux/amd64` and `linux/arm64`.
+
+## Why Wolfi?
+
+[Wolfi](https://wolfi.dev) is a lightweight Linux distribution built specifically for containers. It provides:
+
+- **Minimal footprint** - Only essential packages, nothing extra
+- **Daily security updates** - Patches applied quickly
+- **Designed for containers** - No legacy cruft from traditional distros
+
+## Features
+
+- **Lightweight** - Optimized for fast CI/CD pulls
+- **Secure** - Built on Wolfi with continuous vulnerability scanning
+- **Multi-arch** - Supports both `linux/amd64` and `linux/arm64`
+- **Non-root** - Runs as unprivileged user (UID 65532)
+- **Supply chain security** - SBOM and SLSA provenance attestations included
+
+## Dockerfile Examples
+
+### Web App (WASM)
+
+```dockerfile
+FROM svrnty/flutter-sdk:web-latest AS build
+WORKDIR /app
+COPY . .
+RUN flutter pub get && flutter build web --wasm --release
+
+# Cache-busting: append version to JS/WASM references
+RUN VERSION=$(date +%s) && cd build/web && \
+    sed -i "s|flutter_bootstrap\.js\"|flutter_bootstrap.js?v=${VERSION}\"|g" index.html && \
+    sed -i "s|main\.dart\.js\"|main.dart.js?v=${VERSION}\"|g" flutter_bootstrap.js && \
+    sed -i "s|main\.dart\.mjs\"|main.dart.mjs?v=${VERSION}\"|g" flutter_bootstrap.js && \
+    sed -i "s|main\.dart\.wasm\"|main.dart.wasm?v=${VERSION}\"|g" flutter_bootstrap.js
+
+FROM ghcr.io/static-web-server/static-web-server:2 AS sws
+FROM scratch
+COPY --from=sws /static-web-server /static-web-server
+COPY --from=build /app/build/web /public
+COPY sws.toml /sws.toml
+EXPOSE 8080
+USER 65534
+ENTRYPOINT ["/static-web-server", "--config-file", "/sws.toml"]
+```
+
+**sws.toml** - Required headers for WASM multi-threading:
+
+```toml
+[general]
+host = "0.0.0.0"
+port = 8080
+root = "/public"
+page-fallback = "/public/index.html"
+compression = true
+
+[[advanced.headers]]
+source = "**"
+[advanced.headers.headers]
+Cross-Origin-Opener-Policy = "same-origin"
+Cross-Origin-Embedder-Policy = "require-corp"
+```
+
+### Android APK
+
+```dockerfile
+FROM svrnty/flutter-sdk:android-latest AS build
+WORKDIR /app
+COPY . .
+RUN flutter pub get && flutter build apk --release
+
+FROM scratch
+COPY --from=build /app/build/app/outputs/flutter-apk/app-release.apk /
+```
+
+### Linux Desktop
+
+```dockerfile
+FROM svrnty/flutter-sdk:linux-latest AS build
+WORKDIR /app
+COPY . .
+RUN flutter pub get && flutter build linux --release
+
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y libgtk-3-0 && rm -rf /var/lib/apt/lists/*
+COPY --from=build /app/build/linux/arm64/release/bundle /app
+ENTRYPOINT ["/app/my_app"]
+```
+
+## CI/CD (Gitea/GitHub Actions)
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: svrnty/flutter-sdk:android-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: flutter pub get
+      - run: flutter build apk --release
+```
+
+## Tags
+
+- `<variant>-latest` - Latest stable Flutter release
+- `<variant>-<version>` - Specific Flutter version (e.g., `android-3.29.0`)
+
+## Automatic Updates
+
+Images are automatically rebuilt when:
+- New Flutter stable versions are released
+- Base image security updates are available
+
+Every build is scanned and includes supply chain attestations (SBOM, SLSA provenance).
+
+## License
+
+MIT
--- a/Dockerfile.android
+++ b/Dockerfile.android
@ -28,7 +28,12 @@ RUN mkdir -p "${ANDROID_HOME}/cmdline-tools" && \
      "platforms;android-${ANDROID_COMPILE_SDK}" \
      "build-tools;${ANDROID_BUILD_TOOLS}" && \
    # Remove lint-psi to eliminate protobuf-java 2.6.1 CVEs (saves 86MB)
-    rm -rf "${ANDROID_HOME}/cmdline-tools/latest/lib/external/lint-psi"
+    rm -rf "${ANDROID_HOME}/cmdline-tools/latest/lib/external/lint-psi" && \
+    # Upgrade commons-lang3 from 3.16.0 to 3.18.0 to fix CVE-2025-48924
+    rm -f "${ANDROID_HOME}/cmdline-tools/latest/lib/external/org/apache/commons/commons-lang3/3.16.0/commons-lang3-3.16.0.jar" && \
+    mkdir -p "${ANDROID_HOME}/cmdline-tools/latest/lib/external/org/apache/commons/commons-lang3/3.18.0" && \
+    curl -fsSL "https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/3.18.0/commons-lang3-3.18.0.jar" \
+      -o "${ANDROID_HOME}/cmdline-tools/latest/lib/external/org/apache/commons/commons-lang3/3.18.0/commons-lang3-3.18.0.jar"

 # Clone Flutter SDK from git (supports both amd64 and arm64)
 RUN git clone --depth 1 --branch ${FLUTTER_VERSION} https://github.com/flutter/flutter.git /opt/flutter && \
--- a/Dockerfile.linux
+++ b/Dockerfile.linux
@ -8,6 +8,9 @@ LABEL org.opencontainers.image.version="${FLUTTER_VERSION}"

 USER 0

+# Remove rav1e to eliminate CVE in paste crate (not needed for Flutter)
+RUN rm -f /usr/bin/rav1e /usr/lib/librav1e.so* /var/lib/db/sbom/rav1e-*.spdx.json
+
 # Clone Flutter SDK from git (supports both amd64 and arm64)
 RUN git clone --depth 1 --branch ${FLUTTER_VERSION} https://github.com/flutter/flutter.git /opt/flutter && \
    git config --global --add safe.directory /opt/flutter && \
--- a/README.md
+++ b/README.md
@ -0,0 +1,134 @@
+# Flutter SDK Docker Images
+
+<a href="https://git.openharbor.io/svrnty/docker-flutter-sdk" target="_blank"><img src="https://img.shields.io/badge/Git-Repository-orange?logo=gitea" alt="Git Repository"></a>
+<a href="https://hub.docker.com/r/svrnty/flutter-sdk" target="_blank"><img src="https://img.shields.io/badge/Docker%20Hub-svrnty%2Fflutter--sdk-blue?logo=docker" alt="Docker Hub"></a>
+<a href="https://hub.docker.com/r/svrnty/flutter-sdk" target="_blank"><img src="https://img.shields.io/docker/pulls/svrnty/flutter-sdk?logo=docker" alt="Docker Pulls"></a>
+<a href="https://developer.android.com/tools/releases/build-tools" target="_blank"><img src="https://img.shields.io/badge/Android%20SDK-36.1.0-green?logo=android" alt="Android SDK"></a>
+<a href="https://wolfi.dev" target="_blank"><img src="https://img.shields.io/badge/Base-Wolfi-purple?logo=linux" alt="Wolfi"></a>
+
+Lightweight Flutter SDK images for CI/CD pipelines. Built on [Wolfi](https://wolfi.dev), a security-focused Linux distribution designed for containers.
+
+## Images
+
+| Variant | Use Case | Size | Arch |
+|---------|----------|------|------|
+| <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=web" target="_blank"><img src="https://img.shields.io/badge/flutter--sdk-web--3.38.9-blue?logo=docker" alt="web-3.38.9"></a> | Web/WASM builds | <img src="https://img.shields.io/docker/image-size/svrnty/flutter-sdk/web-3.38.9?label=&logo=docker" alt="size"> | <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=web" target="_blank"><img src="https://img.shields.io/badge/amd64-E65100" alt="amd64"></a> &nbsp; <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=web" target="_blank"><img src="https://img.shields.io/badge/arm64-2e7d32" alt="arm64"></a> |
+| <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=android" target="_blank"><img src="https://img.shields.io/badge/flutter--sdk-android--3.38.9-blue?logo=docker" alt="android-3.38.9"></a> | Android APK/AAB builds | <img src="https://img.shields.io/docker/image-size/svrnty/flutter-sdk/android-3.38.9?label=&logo=docker" alt="size"> | <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=android" target="_blank"><img src="https://img.shields.io/badge/amd64-E65100" alt="amd64"></a> &nbsp; <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=android" target="_blank"><img src="https://img.shields.io/badge/arm64-2e7d32" alt="arm64"></a> |
+| <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=linux" target="_blank"><img src="https://img.shields.io/badge/flutter--sdk-linux--3.38.9-blue?logo=docker" alt="linux-3.38.9"></a> | Linux desktop builds | <img src="https://img.shields.io/docker/image-size/svrnty/flutter-sdk/linux-3.38.9?label=&logo=docker" alt="size"> | <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=linux" target="_blank"><img src="https://img.shields.io/badge/amd64-E65100" alt="amd64"></a> &nbsp; <a href="https://hub.docker.com/r/svrnty/flutter-sdk/tags?name=linux" target="_blank"><img src="https://img.shields.io/badge/arm64-2e7d32" alt="arm64"></a> |
+
+## Why Wolfi?
+
+[Wolfi](https://wolfi.dev) is a lightweight Linux distribution built specifically for containers. It provides:
+
+- **Minimal footprint** - Only essential packages, nothing extra
+- **Daily security updates** - Patches applied quickly
+- **Designed for containers** - No legacy cruft from traditional distros
+
+## Features
+
+- **Lightweight** - Optimized for fast CI/CD pulls
+- **Secure** - Built on Wolfi with continuous vulnerability scanning
+- **Multi-arch** - Supports both `linux/amd64` and `linux/arm64`
+- **Non-root** - Runs as unprivileged user (UID 65532)
+- **Supply chain security** - SBOM and SLSA provenance attestations included
+
+## Dockerfile Examples
+
+### Web App (WASM)
+
+```dockerfile
+FROM svrnty/flutter-sdk:web-latest AS build
+WORKDIR /app
+COPY . .
+RUN flutter pub get && flutter build web --wasm --release
+
+# Cache-busting: append version to JS/WASM references
+RUN VERSION=$(date +%s) && cd build/web && \
+    sed -i "s|flutter_bootstrap\.js\"|flutter_bootstrap.js?v=${VERSION}\"|g" index.html && \
+    sed -i "s|main\.dart\.js\"|main.dart.js?v=${VERSION}\"|g" flutter_bootstrap.js && \
+    sed -i "s|main\.dart\.mjs\"|main.dart.mjs?v=${VERSION}\"|g" flutter_bootstrap.js && \
+    sed -i "s|main\.dart\.wasm\"|main.dart.wasm?v=${VERSION}\"|g" flutter_bootstrap.js
+
+FROM ghcr.io/static-web-server/static-web-server:2 AS sws
+FROM scratch
+COPY --from=sws /static-web-server /static-web-server
+COPY --from=build /app/build/web /public
+COPY sws.toml /sws.toml
+EXPOSE 8080
+USER 65534
+ENTRYPOINT ["/static-web-server", "--config-file", "/sws.toml"]
+```
+
+**sws.toml** - Required headers for WASM multi-threading:
+
+```toml
+[general]
+host = "0.0.0.0"
+port = 8080
+root = "/public"
+page-fallback = "/public/index.html"
+compression = true
+
+[[advanced.headers]]
+source = "**"
+[advanced.headers.headers]
+Cross-Origin-Opener-Policy = "same-origin"
+Cross-Origin-Embedder-Policy = "require-corp"
+```
+
+### Android APK
+
+```dockerfile
+FROM svrnty/flutter-sdk:android-latest AS build
+COPY . /app
+WORKDIR /app
+RUN flutter pub get && flutter build apk --release
+
+FROM scratch
+COPY --from=build /app/build/app/outputs/flutter-apk/app-release.apk /
+```
+
+### Linux Desktop
+
+```dockerfile
+FROM svrnty/flutter-sdk:linux-latest AS build
+WORKDIR /app
+COPY . .
+RUN flutter pub get && flutter build linux --release
+
+FROM debian:bookworm-slim
+RUN apt-get update && apt-get install -y libgtk-3-0 && rm -rf /var/lib/apt/lists/*
+COPY --from=build /app/build/linux/arm64/release/bundle /app
+ENTRYPOINT ["/app/my_app"]
+```
+
+## CI/CD (Gitea/GitHub Actions)
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: svrnty/flutter-sdk:android-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: flutter pub get
+      - run: flutter build apk --release
+```
+
+## Tags
+
+- `<variant>-latest` - Latest stable Flutter release
+- `<variant>-<version>` - Specific Flutter version (e.g., `android-3.38.9`)
+
+## Automatic Updates
+
+Images are automatically rebuilt when:
+- New Flutter stable versions are released
+- Base image security updates are available
+
+Every build is scanned and includes supply chain attestations (SBOM, SLSA provenance).
+
+## License
+
+MIT
Author	SHA1	Message	Date
github-actions[bot]	518b7b33c0	Update base image digests (Wolfi security update)	2026-02-04 13:00:08 +00:00
Mathias Beaulieu-Duncan	33ad166ce8	Make versioned tags immutable Some checks failed Check for Flutter SDK, Android SDK, and Base Image Updates / check-update (push) Failing after 10s Details - Full release (3.38.9): creates web-3.38.9 + web-latest - Prerelease (3.38.9-rebuild-20260203): creates web-3.38.9-rebuild-20260203 + web-dev - Versioned tags never get overwritten after initial publish Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:25:21 -05:00
Mathias Beaulieu-Duncan	3aa55f7590	Add Wolfi base image update detection - Check base image digests daily against stored values - Trigger prerelease rebuild when Wolfi updates detected - Store digests in .base-digests file Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:19:56 -05:00
Mathias Beaulieu-Duncan	8605e967b1	Add static Docker Hub README Simplified version without dynamic badges or images table. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:11:12 -05:00
Mathias Beaulieu-Duncan	4bdf6bb162	Skip README sync for test releases Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:09:32 -05:00
Mathias Beaulieu-Duncan	a5fb4b3584	Move README sync into publish workflow - Add sync-readme job that runs after builds complete - Uses release tag directly (no API call needed) - Only runs for full releases, not prereleases - Remove separate sync-readme-badges.yaml workflow Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:08:28 -05:00
Mathias Beaulieu-Duncan	f54b8f37ae	Get Flutter version from release tag instead of Dockerfile The build uses --build-arg to override the Dockerfile default, so README sync should read from the actual release tag. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:07:01 -05:00
Mathias Beaulieu-Duncan	dffc5a151e	Note Gitea/GitHub Actions cross-compatibility Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:02:38 -05:00
Mathias Beaulieu-Duncan	c4c88e2e05	Simplify CI/CD section to Gitea Actions only Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:01:59 -05:00
Mathias Beaulieu-Duncan	6e5707d36a	Change Linux desktop example to Debian arm64 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 04:01:05 -05:00
Mathias Beaulieu-Duncan	b21965fd8d	Add sws.toml config for proper WASM headers COOP/COEP headers required for SharedArrayBuffer (WASM multi-threading). Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:58:47 -05:00
Mathias Beaulieu-Duncan	26797d954d	Update web example with WASM build and static-web-server - Use --wasm flag for WebAssembly compilation - Add cache-busting for JS/WASM assets - Replace nginx with static-web-server on scratch (~18MB) - Run as non-root user Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:56:27 -05:00
Mathias Beaulieu-Duncan	b5ccf2effa	Remove dev tag from documentation The -dev tag was only used for pipeline testing. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:53:53 -05:00
Mathias Beaulieu-Duncan	a92326374d	Replace CLI examples with multi-stage Dockerfile examples - Web: Build app and serve with nginx - Android: Extract APK from multi-stage build - Linux: Build desktop app with minimal runtime - Consolidated CI/CD section Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:53:29 -05:00
Mathias Beaulieu-Duncan	eeaf0d00a5	Use darker orange for amd64 badges to complement arm64 green Changed from standard orange to #E65100 (deep orange) for better visual balance with the #2e7d32 dark green arm64 badges. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:50:53 -05:00
Mathias Beaulieu-Duncan	d6ea6233d7	Make arch badges clickable to Docker Hub tags page Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:48:44 -05:00
Mathias Beaulieu-Duncan	00fd040d67	Use darker green for arm64 badge, add separator Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:48:06 -05:00
Mathias Beaulieu-Duncan	63c6385410	Add colored arch badges: amd64 orange, arm64 green Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:46:59 -05:00
Mathias Beaulieu-Duncan	e8a9efce53	Use actual version tags in variant table, remove latest badge - Show web-3.38.9, android-3.38.9, linux-3.38.9 instead of generic names - Remove Docker Version latest badge - Update sync workflow to also update Flutter versions in badges Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:46:24 -05:00
Mathias Beaulieu-Duncan	950e0c8877	Move Git Repository badge to first position Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:45:07 -05:00
Mathias Beaulieu-Duncan	4ebb852202	Trigger badge sync only after build workflow completes Use workflow_run instead of push trigger to ensure badges update after images are actually built. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:44:45 -05:00
Mathias Beaulieu-Duncan	5264393e39	Fix size badges to use existing -dev tags The -latest tags don't exist yet, use -dev tags for size display. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:43:37 -05:00
Mathias Beaulieu-Duncan	ef7281a710	Add workflow to auto-sync README badges with Dockerfile versions Automatically updates Android SDK version badge when Dockerfile changes. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:42:48 -05:00
Mathias Beaulieu-Duncan	5d5634c4a1	Add Android SDK version badge Links to Android build-tools release notes page. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:41:43 -05:00
Mathias Beaulieu-Duncan	b574607caf	Add dynamic badges to images table - Clickable Docker badges linking to specific tag pages - Dynamic image sizes from Docker Hub - Architecture column showing amd64/arm64 support Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:40:05 -05:00
Mathias Beaulieu-Duncan	091a50fe1a	Fix badge URLs and use HTML for new tab links - Remove broken Docker Scout and SLSA badges - Remove LICENSE badge (no LICENSE file) - Fix image size badge to use version instead - Add Wolfi base badge - Use HTML anchor tags with target="_blank" Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:38:53 -05:00
Mathias Beaulieu-Duncan	7336904388	Add badges for Docker Hub, Git, pulls, size, and compliance Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:35:42 -05:00
Mathias Beaulieu-Duncan	88046dda7f	Update README with friendlier tone Focus on Wolfi benefits rather than competitor comparisons. Highlight lightweight nature and automatic updates. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:33:34 -05:00
Mathias Beaulieu-Duncan	09c23f66ff	Add README with usage examples and size comparison Document the Flutter SDK Docker images with: - Image variants and sizes - Comparison showing 75% smaller than alternatives - CI/CD examples for GitHub, GitLab, and Gitea - Security features (zero CVEs, SBOM, provenance) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:32:22 -05:00
Mathias Beaulieu-Duncan	68b6e6ec54	Remove rav1e to eliminate paste crate CVE in Linux image All checks were successful Build and Push Flutter SDK Image / build-and-push (Flutter SDK for Linux desktop CI builds, Dockerfile.linux, linux) (release) Successful in 21m10s Details Build and Push Flutter SDK Image / build-and-push (Flutter SDK for Android CI builds, Dockerfile.android, android) (release) Successful in 28m35s Details Build and Push Flutter SDK Image / build-and-push (Minimal Flutter SDK for Web/WASM CI builds, Dockerfile, web) (release) Successful in 16m45s Details Remove rav1e binary, library, and SBOM metadata to eliminate RUSTSEC-2024-0436 in the paste crate. rav1e (AV1 encoder) is not needed for Flutter Linux desktop development. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 03:01:29 -05:00
Mathias Beaulieu-Duncan	553fee0a25	Upgrade commons-lang3 to fix CVE-2025-48924 Replace vulnerable commons-lang3 3.16.0 with fixed version 3.18.0 to resolve CVE-2025-48924 (CVSS 6.5 Medium). Image now has 0 vulnerabilities across all severity levels. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 02:45:13 -05:00