adding node exporter, loki, and promtail

loki/rootfs/etc/nginx/servers/ready.conf

@@ -0,0 +1,14 @@
+server {
+    listen 3101 default_server;
+
+    include /etc/nginx/includes/server_params.conf;
+    include /etc/nginx/includes/proxy_params.conf;
+
+    location = /ready {
+        proxy_pass http://backend;
+    }
+
+    location / {
+        return 444;
+    }
+}