.forgejo/workflows/ci.yaml

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+name: Build and Publish Docker Image
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-validate:
+    name: Build and Validate
+    runs-on: ubuntu
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build Docker Image
+        run: |
+          docker build -t threejs-test:test .
+
+      - name: Validate Image
+        run: |
+          docker run --rm -d --name test-container -p 8080:80 threejs-test:test
+          sleep 2
+          curl -f http://localhost:8080 || exit 1
+          docker stop test-container
+
+  publish:
+    name: Publish to Registry
+    runs-on: ubuntu
+    needs: build-and-validate
+    if: github.event_name == 'push' || gitea.event_name == 'push'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Fetch all history for tags
+
+      - name: Login to Registry
+        run: |
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.jusemon.com -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+
+      - name: Determine Version
+        id: version
+        run: |
+          # Get latest version tag
+          LATEST_TAG=$(git describe --tags --match 'v*.*.*' --abbrev=0 2>/dev/null || echo "v0.0.0")
+          LATEST_VERSION="${LATEST_TAG#v}"
+          
+          # Parse version components
+          IFS='.' read -r MAJOR MINOR PATCH <<< "$LATEST_VERSION"
+          MAJOR=${MAJOR:-0}
+          MINOR=${MINOR:-0}
+          PATCH=${PATCH:-0}
+          
+          # Increment patch version for each merge to main, or start at 0.1.0 if no tags exist
+          if [[ "$LATEST_TAG" == "v0.0.0" ]]; then
+            # First version
+            NEW_VERSION="0.1.0"
+          else
+            # Increment patch version for each merge to main
+            PATCH=$((PATCH + 1))
+            NEW_VERSION="$MAJOR.$MINOR.$PATCH"
+          fi
+          
+          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
+          echo "tag=v$NEW_VERSION" >> $GITHUB_OUTPUT
+          echo "Latest tag: $LATEST_TAG"
+          echo "New version: $NEW_VERSION"
+
+      - name: Build Docker Image
+        run: |
+          IMAGE_NAME="git.jusemon.com/jusemon/threejs-test:${{ steps.version.outputs.version }}"
+          docker build -t "$IMAGE_NAME" .
+          echo "IMAGE_NAME=$IMAGE_NAME" >> $GITHUB_ENV
+
+      - name: Push Docker Image
+        run: |
+          IMAGE_NAME="git.jusemon.com/jusemon/threejs-test:${{ steps.version.outputs.version }}"
+          docker push "$IMAGE_NAME"
+          
+          # Also tag as 'latest' for main branch
+          docker tag "$IMAGE_NAME" "git.jusemon.com/jusemon/threejs-test:latest"
+          docker push "git.jusemon.com/jusemon/threejs-test:latest"
+
+      - name: Create Git Tag
+        run: |
+          git config user.name "forgejo-actions"
+          git config user.email "forgejo-actions@forgejo.io"
+          TAG="${{ steps.version.outputs.tag }}"
+          # Check if tag already exists
+          if git rev-parse "$TAG" >/dev/null 2>&1; then
+            echo "Tag $TAG already exists, skipping tag creation"
+          else
+            git tag -a "$TAG" -m "Release ${{ steps.version.outputs.version }}"
+            git push origin "$TAG"
+          fi
+

Dockerfile

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+FROM nginx:alpine
+
+# Copy the HTML file
+COPY index.html /usr/share/nginx/html/index.html
+
+# Copy nginx configuration
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Expose port 80
+EXPOSE 80
+

docker-compose.yml

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+name: threejs-test
+
+services:
+  ui:
+    build: .
+    restart: unless-stopped
+

nginx.conf

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+server {
+    listen 80;
+    server_name localhost;
+    
+    root /usr/share/nginx/html;
+    index index.html;
+    
+    location / {
+        try_files $uri $uri/ =404;
+    }
+    
+    # Enable gzip compression
+    gzip on;
+    gzip_types text/html text/css application/javascript;
+    gzip_min_length 1000;
+}
+