feat: add build time and version info to Docker image and page footer

Agent-Logs-Url: https://github.com/wahyd4/links/sessions/514d1f3d-d003-4f16-9a54-d221dba306f7

Co-authored-by: wahyd4 <836576+wahyd4@users.noreply.github.com>

.github/workflows/build-and-deploy.yml

@@ -60,6 +60,10 @@ jobs:
       with:
         images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
+    - name: Set build timestamp
+      id: build_time
+      run: echo "value=$(date -u '+%Y-%m-%d %H:%M:%S UTC')" >> $GITHUB_OUTPUT
+
     # Build and push main application image
     - name: Build and push Docker image
       uses: docker/build-push-action@v6
@@ -72,6 +76,9 @@ jobs:
           ghcr.io/wahyd4/links:1.0.${{ github.run_number }}
         labels: |-
           ${{ steps.meta.outputs.labels }}
+        build-args: |-
+          BUILD_TIME=${{ steps.build_time.outputs.value }}
+          BUILD_VERSION=1.0.${{ github.run_number }}
 
     - name: Deploy to Kubernetes
       uses: wahyd4/kubectl-helm-action@master

Dockerfile

@@ -73,6 +73,10 @@ RUN rm -rf /tmp/.cache/uv ~/.npm ~/.cache \
 # Production stage - use Python 3.12 slim
 FROM python:3.12-slim AS production
 
+# Build-time metadata
+ARG BUILD_TIME=""
+ARG BUILD_VERSION=""
+
 # Set environment variables
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
@@ -81,6 +85,8 @@ ENV VIRTUAL_ENV=/app/.venv
 ENV PATH="/app/.venv/bin:$PATH"
 ENV DEBIAN_FRONTEND=noninteractive
 ENV PLAYWRIGHT_BROWSERS_PATH=/app/.playwright
+ENV BUILD_TIME=${BUILD_TIME}
+ENV BUILD_VERSION=${BUILD_VERSION}
 
 # Set work directory
 WORKDIR /app

core/context_processors.py

@@ -0,0 +1,8 @@
+from django.conf import settings
+
+
+def build_info(request):
+    return {
+        'BUILD_TIME': getattr(settings, 'BUILD_TIME', ''),
+        'BUILD_VERSION': getattr(settings, 'BUILD_VERSION', ''),
+    }

core/settings.py

@@ -36,6 +36,7 @@ TEMPLATES = [
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
+                'core.context_processors.build_info',
             ],
         },
     },
@@ -207,6 +208,10 @@ R2_CUSTOM_DOMAIN = os.environ.get('R2_CUSTOM_DOMAIN')
 CRAWL4AI_API_URL = os.environ.get('CRAWL4AI_API_URL', 'https://crawl-api.junv.cc')
 CRAWL4AI_ENABLED = os.environ.get('CRAWL4AI_ENABLED', 'True').lower() in ('true', '1', 'yes')
 
+# Build metadata (injected at Docker image build time)
+BUILD_TIME = os.environ.get('BUILD_TIME', '')
+BUILD_VERSION = os.environ.get('BUILD_VERSION', '')
+
 # For debugging
 LOGGING = {
     'version': 1,

templates/base.html

@@ -252,5 +252,10 @@
         });
     </script>
     {% block extra_js %}{% endblock %}
+    {% if BUILD_TIME %}
+    <footer class="text-center text-gray-400 text-xs py-3 mt-4 border-t border-gray-100">
+        Built at: {{ BUILD_TIME }} with ver: {{ BUILD_VERSION }}
+    </footer>
+    {% endif %}
 </body>
 </html>