Add dockerfile and dockerfile creation step

Author: idelsink

.dockerignore

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+build
+dist
+node_modules
+.git
+.DS_Store
+.env

.github/workflows/docker-build.yml

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+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+      - feat/*
+    tags:
+      - "v*"
+  pull_request:
+    branches:
+      - main
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          provenance: true
+          sbom: true
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          format: "sarif"
+          output: "trivy-results.sarif"
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        if: always()
+        with:
+          sarif_file: "trivy-results.sarif"

Dockerfile

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+# Build stage
+FROM docker.io/library/node:lts-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# Production stage
+FROM docker.io/library/nginx:alpine
+
+# Add metadata labels
+LABEL org.opencontainers.image.title="GitHub Compare"
+LABEL org.opencontainers.image.description="A simple web application to compare release notes between two GitHub releases"
+LABEL org.opencontainers.image.authors="Ingmar Delsink"
+LABEL org.opencontainers.image.licenses="MIT"
+LABEL org.opencontainers.image.source="https://github.com/idelsink/github-compare"
+LABEL org.opencontainers.image.documentation="https://github.com/idelsink/github-compare#readme"
+
+COPY --from=builder /app/dist /usr/share/nginx/html
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]