fix(nginx): redirect 404 requests home

Dockerfile

@@ -23,6 +23,9 @@ RUN mkdir /ejks \
 # Runtime container
 FROM nginx:1.25.3-alpine-slim
 
+# Replace default configuration
+COPY nginx-default-server.conf /etc/nginx/conf.d/default.conf
+
 # Add application
 COPY --from=builder /ejks /usr/share/nginx/html
 COPY src/favicon.ico src/googlee78c4ec223f14545.html /usr/share/nginx/html/

nginx-default-server.conf

@@ -0,0 +1,19 @@
+server {
+    listen       80;
+    listen  [::]:80;
+    server_name  localhost;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    error_page  404 =200    /index.html;
+
+    # redirect server error pages to the static page /50x.html
+    #
+    error_page   500 502 503 504  /50x.html;
+    location = /50x.html {
+        root   /usr/share/nginx/html;
+    }
+}