added 404 for nginx

Dockerfile

@@ -21,5 +21,6 @@ RUN zola build --force
 
 FROM nginx:alpine
 COPY --from=builder /site/public /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]

nginx.conf

@@ -0,0 +1,13 @@
+server {
+    listen 80 default_server;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    error_page 404 /404.html;
+}