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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
Check for Flutter SDK, Android SDK, and Base Image Updates / check-update (push) Failing after 5s
- 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
6 changed files with 293 additions and 101 deletions
+3
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@@ -0,0 +1,3 @@
web=sha256:cce6d72541facea17321cb7f76fc8947c54335a3675cabe64214efad366240f4
android=sha256:489f3cbd316bd66d3475430b69e1b32f87606a63f8837c3588b04da83b7509ff
linux=sha256:2c77cba8eb20114f45d7b9d97d5d6773fa542c72cb6252d6f1c00de9fb4c7e95
+49 -12
View File
@@ -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 ${{ github.event.release.tag_name }}"
git push
-68
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@@ -1,68 +0,0 @@
name: Sync README Badges
on:
workflow_run:
workflows: ["Build and Push Flutter SDK Image"]
types:
- completed
workflow_dispatch:
jobs:
sync-badges:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v3
- name: Extract versions from Dockerfiles
id: versions
run: |
# Android SDK build-tools version
ANDROID_SDK=$(grep -oP 'ANDROID_BUILD_TOOLS=\K[0-9.]+' Dockerfile.android || echo "")
echo "android_sdk=${ANDROID_SDK}" >> $GITHUB_OUTPUT
echo "Android SDK: ${ANDROID_SDK}"
# Flutter version (from ARG default)
FLUTTER=$(grep -oP 'ARG FLUTTER_VERSION=\K[0-9.]+' Dockerfile.android || echo "")
echo "flutter=${FLUTTER}" >> $GITHUB_OUTPUT
echo "Flutter: ${FLUTTER}"
- name: Update README badges
run: |
ANDROID_SDK="${{ steps.versions.outputs.android_sdk }}"
FLUTTER="${{ steps.versions.outputs.flutter }}"
if [ -n "$ANDROID_SDK" ]; then
# Update Android SDK badge version
sed -i "s|Android%20SDK-[0-9.]*-green|Android%20SDK-${ANDROID_SDK}-green|g" README.md
echo "Updated Android SDK badge to ${ANDROID_SDK}"
fi
if [ -n "$FLUTTER" ]; then
# Update Flutter version in variant badges and size badges
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
echo "Updated Flutter version badges to ${FLUTTER}"
fi
- name: Check for changes
id: changes
run: |
if git diff --quiet README.md; then
echo "changed=false" >> $GITHUB_OUTPUT
else
echo "changed=true" >> $GITHUB_OUTPUT
fi
- name: Commit and push
if: steps.changes.outputs.changed == 'true'
run: |
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"
git add README.md
git commit -m "Update README badges to match Dockerfile versions"
git push
+71 -1
View File
@@ -1,4 +1,4 @@
name: Check for Flutter SDK and Android SDK Updates
name: Check for Flutter SDK, Android SDK, and Base Image Updates
on:
schedule:
@@ -96,6 +96,76 @@ jobs:
echo "needs_update=${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 ${VERSION}\",
\"body\": \"Automated rebuild for Wolfi base image security updates\",
\"draft\": false,
\"prerelease\": true
}"
- name: Create release for new Flutter version
if: steps.existing.outputs.exists == 'false' && steps.flutter.outputs.version != ''
run: |
+131
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@@ -0,0 +1,131 @@
# Flutter SDK Docker Images
<a href="https://git.openharbor.io/svrnty/docker-flutter-sdk" target="_blank"><img src="https://img.shields.io/badge/Git-Repository-orange?logo=gitea" alt="Git Repository"></a>
<a href="https://wolfi.dev" target="_blank"><img src="https://img.shields.io/badge/Base-Wolfi-purple?logo=linux" alt="Wolfi"></a>
Lightweight Flutter SDK images for CI/CD pipelines. Built on [Wolfi](https://wolfi.dev), a security-focused Linux distribution designed for containers.
## Variants
- `web` - Web/WASM builds
- `android` - Android APK/AAB builds
- `linux` - Linux desktop builds
All variants support `linux/amd64` and `linux/arm64`.
## Why Wolfi?
[Wolfi](https://wolfi.dev) is a lightweight Linux distribution built specifically for containers. It provides:
- **Minimal footprint** - Only essential packages, nothing extra
- **Daily security updates** - Patches applied quickly
- **Designed for containers** - No legacy cruft from traditional distros
## Features
- **Lightweight** - Optimized for fast CI/CD pulls
- **Secure** - Built on Wolfi with continuous vulnerability scanning
- **Multi-arch** - Supports both `linux/amd64` and `linux/arm64`
- **Non-root** - Runs as unprivileged user (UID 65532)
- **Supply chain security** - SBOM and SLSA provenance attestations included
## Dockerfile Examples
### Web App (WASM)
```dockerfile
FROM svrnty/flutter-sdk:web-latest AS build
WORKDIR /app
COPY . .
RUN flutter pub get && flutter build web --wasm --release
# Cache-busting: append version to JS/WASM references
RUN VERSION=$(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
+39 -20
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@@ -34,17 +34,46 @@ Lightweight Flutter SDK images for CI/CD pipelines. Built on [Wolfi](https://wol
## Dockerfile Examples
### Web App
### Web App (WASM)
```dockerfile
FROM svrnty/flutter-sdk:web-latest AS build
COPY . /app
WORKDIR /app
RUN flutter pub get && flutter build web --release
COPY . .
RUN flutter pub get && flutter build web --wasm --release
FROM nginx:alpine
COPY --from=build /app/build/web /usr/share/nginx/html
EXPOSE 80
# 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
@@ -63,20 +92,19 @@ COPY --from=build /app/build/app/outputs/flutter-apk/app-release.apk /
```dockerfile
FROM svrnty/flutter-sdk:linux-latest AS build
COPY . /app
WORKDIR /app
COPY . .
RUN flutter pub get && flutter build linux --release
FROM ubuntu:22.04
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/x64/release/bundle /app
COPY --from=build /app/build/linux/arm64/release/bundle /app
ENTRYPOINT ["/app/my_app"]
```
## CI/CD
## CI/CD (Gitea/GitHub Actions)
```yaml
# GitHub Actions / Gitea Actions
jobs:
build:
runs-on: ubuntu-latest
@@ -88,15 +116,6 @@ jobs:
- run: flutter build apk --release
```
```yaml
# GitLab CI
build:
image: svrnty/flutter-sdk:android-latest
script:
- flutter pub get
- flutter build apk --release
```
## Tags
- `<variant>-latest` - Latest stable Flutter release