change deployment to use docker-compose

Dockerfile

@@ -1,15 +0,0 @@
-FROM python:3.11-slim
-
-WORKDIR /app
-
-# Copy application files
-COPY urlshort.py ./
-COPY config.json ./
-
-# Data directory is mounted as a volume; pre-create it for local runs
-RUN mkdir -p /app/data
-
-EXPOSE 8080
-
-CMD ["python", "urlshort.py", "config.json"]
-

docker-compose.yml

@@ -1,12 +1,14 @@
 services:
   urlshort:
-    build:
-      context: .
-      dockerfile: Dockerfile
+    image: python:3.11-slim
+    working_dir: /app
+    command: ["python", "-u", "urlshort.py", "config.json"]
     ports:
       - "8080:8080"
     volumes:
-      # Persist the SQLite database outside the container
+      - ./urlshort.py:/app/urlshort.py:ro
+      - ./config.json:/app/config.json:ro
+      - ./static:/app/static:ro
       - ./data:/app/data
     restart: unless-stopped
 

nginx.conf

@@ -0,0 +1,47 @@
+# ===========================================================================
+# URL Shortener — nginx location blocks
+# Drop these into an existing server { } block.
+#
+# Assumptions:
+#   - The Python backend is reachable at  http://urlshort:8080
+#     (docker service name; swap for 127.0.0.1:8080 or upstream as needed)
+#   - Static frontend files live at       /app/static/
+#     (adjust the alias paths to match your deployment layout)
+#
+# Path mapping (base_url = http://<host>/s):
+#   /s/             -> frontend index.html
+#   /s/static/...   -> frontend CSS / JS
+#   /s/api/...      -> Python backend (proxy)
+#   /s/<code>       -> Python backend (redirect, proxy)
+# ===========================================================================
+
+# --- Redirect bare /s to /s/ for clean UX ---
+location = /s {
+    return 301 /s/;
+}
+
+# --- Serve frontend index.html at /s/ ---
+location = /s/ {
+    alias /app/static/index.html;
+}
+
+# --- Serve frontend static assets (CSS, JS, etc.) ---
+# ^~ ensures this takes priority over the general /s/ proxy below.
+location ^~ /s/static/ {
+    alias /app/static/;
+    expires 7d;
+    add_header Cache-Control "public, immutable";
+}
+
+# --- Proxy everything else under /s/ to the Python backend ---
+# Covers: /s/api/shorten, /s/api/urls, /s/api/lookup, /s/<code> redirects
+location /s/ {
+    proxy_pass         http://urlshort:8080;
+    proxy_http_version 1.1;
+
+    proxy_set_header   Host              $host;
+    proxy_set_header   X-Real-IP         $remote_addr;
+    proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;
+    proxy_set_header   X-Forwarded-Proto $scheme;
+}
+