Add nginx health check

conf/nginx.conf

@@ -48,6 +48,11 @@ http {
 
     autoindex_format html;
 
+    location /healthcheck {
+      return 200 'Hi there!';
+      add_header Content-Type text/plain;
+    }
+
     location /xpop {
       root   /usr/share/nginx/html;
       autoindex off;

docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3.3'
+version: '3.4'
 services:
     nginx:
         container_name: xpopweb
@@ -11,6 +11,13 @@ services:
         ports:
             - ${PORT:-3000}:3000
         image: nginx:alpine
+        restart: unless-stopped
+        healthcheck:
+            test: curl --fail http://localhost:3000/healthcheck || exit 1
+            interval: 15s
+            retries: 2
+            start_period: 5s
+            timeout: 5s
     xpop:
         container_name: xpop
         image: xpop:service