add nginx config

dockerfile

@@ -9,5 +9,6 @@ COPY ./ /app/
 RUN ionic build --prod
 
 FROM nginx:alpine
+COPY ./nginx/default.conf /etc/nginx/conf.d/default.conf
 RUN rm -rf /usr/share/nginx/html/*
 COPY --from=build /app/www/ /usr/share/nginx/html/

nginx/default.conf

@@ -0,0 +1,11 @@
+server {
+    listen   80;
+    server_name  _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri /index.html;
+    }
+}