Add error server

containers/error-server/Dockerfile

@@ -0,0 +1,4 @@
+FROM nginx as app
+EXPOSE 80
+COPY nginx.conf /etc/nginx/nginx.conf
+COPY default.conf /etc/nginx/conf.d/default.conf

containers/error-server/default.conf

@@ -0,0 +1,9 @@
+server {
+    listen       80;
+    listen  [::]:80;
+    server_name  localhost;
+
+    location / {
+        return 503;
+    }
+}

containers/error-server/nginx.conf

@@ -0,0 +1,19 @@
+user  nginx;
+worker_processes  auto;
+
+error_log  /var/log/nginx/error.log notice;
+pid        /var/run/nginx.pid;
+
+events {
+    worker_connections  4096;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    access_log off;
+	error_log /dev/null crit;
+
+    include /etc/nginx/conf.d/*.conf;
+}