add Dockerfile and nginx configuration

frontend/Dockerfile

@@ -0,0 +1,8 @@
+FROM nginx:stable-alpine
+
+COPY ./conf/nginx.conf /etc/nginx/nginx.conf
+
+WORKDIR /app
+COPY ./src/. .
+
+EXPOSE 8000

frontend/conf/nginx.conf

@@ -0,0 +1,22 @@
+events {
+    worker_connections  1024;
+}
+
+http {
+    server {
+        listen 8000 default_server;
+        listen [::]:8000 default_server;
+
+        root /app;
+        index index.html;
+        server_name _;
+
+        location / {
+            try_files $uri $uri/ =404;
+        }
+
+        location /api/ {
+            proxy_pass http://backend:8000/;
+        }
+    }
+}