Add healthcheck endpoints and scripts

05-example-web-application/client-react/nginx.conf

@@ -1,5 +1,10 @@
 server {
   listen 80;
+  location /ping {
+        access_log off;
+        add_header 'Content-Type' 'text/plain';
+        return 200 "pong";
+  }
   location /api/golang/ {
         resolver 127.0.0.1;
         proxy_set_header X-Forwarded-Host $host;