Add hardened Docker support and multi-arch CI

Multi-stage Dockerfile (non-root, Tor-ready), compose file, and
entrypoints. Forgejo CI builds linux/amd64+arm64, scans with
checksum-verified Grype, and pins all actions to commit SHA.
Makefile gains venv bootstrap and docker targets; server.py gains
a --bind flag.

1 files changed, 90 insertions, 0 deletions

diff --git a/.forgejo/workflows/ci.yaml b/.forgejo/workflows/ci.yaml
new file mode 100644
index 0000000..c19e1fc
--- /dev/null
+++ b/.forgejo/workflows/ci.yaml
@@ -0,0 +1,90 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+env:
+  IMAGE_NAME: rusian/yt-local
+  GRYPE_VERSION: "0.112.0"
+  PLATFORMS: linux/amd64,linux/arm64
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up Python
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip
+          pip install -r requirements-dev.txt
+
+      - name: Run tests
+        run: pytest -v
+
+  docker:
+    needs: test
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
+
+      - name: Set up Buildx
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        with:
+          username: ${{ secrets.DOCKER_REGISTRY_USER }}
+          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
+        with:
+          images: ${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha,prefix=
+            type=raw,value=latest
+
+      - name: Build image for scan (amd64 only)
+        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
+        with:
+          context: .
+          load: true
+          tags: ${{ env.IMAGE_NAME }}:scan
+
+      - name: Install Grype
+        run: |
+          curl -sSfL -o grype.tar.gz \
+            "https://github.com/anchore/grype/releases/download/v${GRYPE_VERSION}/grype_${GRYPE_VERSION}_linux_amd64.tar.gz"
+          curl -sSfL -o checksums.txt \
+            "https://github.com/anchore/grype/releases/download/v${GRYPE_VERSION}/grype_${GRYPE_VERSION}_checksums.txt"
+          sha256sum --check --ignore-missing checksums.txt
+          tar -xzf grype.tar.gz -C /usr/local/bin grype
+          grype version
+
+      - name: Scan image for vulnerabilities
+        run: grype ${{ env.IMAGE_NAME }}:scan --fail-on critical --output table
+
+      - name: Build and push (multi-platform)
+        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
+        with:
+          context: .
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}