add Dockerfile and configuration for deployment (#14)

.github/workflows/build.yaml

@@ -0,0 +1,65 @@
+name: Build Container
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        required: true
+        description: 'Version string, e.g. 1.2.5:'
+
+concurrency:
+  cancel-in-progress: false
+  group: build-docker-images
+
+jobs:
+  tag_version:
+    name: Create Tag for Version ${{ github.event.inputs.version }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.ref_name }}
+
+      - name: Create and Push Tag
+        run: |
+          git config --local user.name "github-actions[bot]"
+          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
+
+          git remote add publish "https://x-access-token:${{ github.token }}@github.com/${{ github.repository }}.git"
+          git fetch publish
+
+          git tag "${{ github.event.inputs.version }}"
+          git push publish --tags
+
+  build_container:
+    name: Build Container (linux/amd64)
+    runs-on: ubuntu-latest
+    needs: tag_version
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Login to Dockerhub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set up Docker BuildX
+        uses: docker/setup-buildx-action@v3
+        with:
+          version: latest
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          platforms: linux/amd64
+          context: '.'
+          tags: |
+            techradar:latest
+            techradar:${{ github.event.inputs.version }}

Dockerfile

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+FROM curlimages/curl:latest AS builder
+WORKDIR /downloads
+
+# download d3 and replace the download url in the index file
+COPY docs/index.html index.html
+RUN curl -L --no-progress-meter -o d3.js https://d3js.org/d3.v4.min.js
+RUN sed -i 's|<script src="https://d3js.org/d3.v4.min.js"></script>|<script src="d3.js"></script>|' index.html
+
+# download nginx prometheus exporter
+ARG NGINX_EXPORTER_VERSION=1.3.0
+RUN curl -L --no-progress-meter -o nginx-prometheus-exporter.tar.gz https://github.com/nginxinc/nginx-prometheus-exporter/releases/download/v${NGINX_EXPORTER_VERSION}/nginx-prometheus-exporter_${NGINX_EXPORTER_VERSION}_linux_amd64.tar.gz && \
+    tar -xzvf nginx-prometheus-exporter.tar.gz && \
+    chmod +x nginx-prometheus-exporter
+
+FROM nginxinc/nginx-unprivileged:stable-alpine
+COPY deployment/nginx.conf /etc/nginx/conf.d/default.conf
+COPY docs/*.js /usr/share/nginx/html/
+COPY docs/*.css /usr/share/nginx/html/
+COPY --from=builder /downloads/d3.js /usr/share/nginx/html/d3.js
+COPY --from=builder /downloads/index.html /usr/share/nginx/html/index.html
+COPY --from=builder /downloads/nginx-prometheus-exporter /usr/local/bin/nginx-prometheus-exporter
+
+CMD ["sh", "-c", "nginx -g 'daemon off;' & nginx-prometheus-exporter --web.listen-address=:9113"]

deployment/nginx.conf

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+server {
+    listen          8080;
+    server_name     techradar.easybill.com;
+
+    sendfile            on;
+    server_tokens       off;
+    keepalive_timeout   30s;
+
+    index           index.html;
+    root            /usr/share/nginx/html;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    location /health {
+        access_log off;
+        return 200 '';
+    }
+
+    location /stub_status {
+        allow 127.0.0.1;
+        deny all;
+        stub_status;
+        access_log off;
+    }
+}