Add docker image

.dockerignore

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+Dockerfile
+.dockerignore
+.env
+.git
+.gitignore
+LICENSE
+node_modules
+.prettierignore
+.prettierrc.yaml
+.readme
+README.md

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+
+  - package-ecosystem: docker
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/docker-images.yaml

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+name: Docker Image CI
+
+on:
+  push:
+    tags: ['v*']
+
+env:
+  IMAGE: ghcr.io/${{ github.repository }}
+  PROJECT_URL: https://github.com/${{ github.repository }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions: write-all # required to push to GitHub Container Registry
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Login to GitHub Container Registry
+        run: |
+          buildah login -u "$REGISTRY_USER" --password-stdin <<<"$REGISTRY_PASSWORD" "${IMAGE%%/*}"
+        env:
+          REGISTRY_USER: ${{ github.actor }}
+          REGISTRY_PASSWORD: ${{ github.token }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+
+      - name: Build
+        run: |
+          set -ex
+          tags=("${IMAGE}:${GITHUB_REF_NAME}" "${IMAGE}:latest")
+          buildah build \
+            --platform linux/amd64,linux/arm64 \
+            --manifest "${tags[0]}" \
+            --timestamp="$(git show -s --format=%ct HEAD)" \
+            --label="org.opencontainers.image.url=${PROJECT_URL}" \
+            --label="org.opencontainers.image.source=${PROJECT_URL}" \
+            --label="org.opencontainers.image.version=${GITHUB_REF_NAME}" \
+            --label="org.opencontainers.image.revision=${GITHUB_SHA}"
+          for tag in "${tags[@]:1}"; do
+            buildah tag -- "${tags[0]}" "$tag"
+          done
+          for tag in "${tags[@]}"; do
+            buildah push -- "$tag"
+          done

Dockerfile

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+FROM docker.io/library/node:18.17.1-alpine3.18
+
+ENV NODE_ENV=production
+
+COPY . /app/
+
+WORKDIR /app
+
+RUN npm ci --no-audit --no-fund --logs-dir=/dev/null && { npm cache clean --force --logs-dir=/dev/null || true; }
+
+USER node
+CMD [ "node", "/app/src/index.js" ]