grafana use vhost from documentation

bundles/grafana/metadata.py

@@ -129,10 +129,7 @@ def nginx(metadata):
         'nginx': {
             'vhosts': {
                 metadata.get('grafana/hostname'): {
-                    'content': 'nginx/proxy_pass.conf',
+                    'content': 'grafana/vhost.conf',
-                    'context': {
-                        'target': 'http://127.0.0.1:8300',
-                    }
                 },
             },
         },

data/grafana/vhost.conf

@@ -0,0 +1,28 @@
+map $http_upgrade $connection_upgrade {
+  default upgrade;
+  '' close;
+}
+
+server {
+  listen 443 ssl http2;
+  listen [::]:443 ssl http2;
+  server_name ${server_name};
+  
+  ssl_certificate /var/lib/dehydrated/certs/${server_name}/fullchain.pem;
+  ssl_certificate_key /var/lib/dehydrated/certs/${server_name}/privkey.pem;
+
+  location / {
+    proxy_set_header Host $http_host;
+    proxy_pass http://127.0.0.1:8300/;
+  }
+
+  # Proxy Grafana Live WebSocket connections.
+  location /api/live {
+    rewrite  ^/(.*)  /$1 break;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+    proxy_set_header Host $http_host;
+    proxy_pass http://127.0.0.1:8300/;
+  }
+}