bundles/radicale: add metadata reactor for nginx vhost

bundles/radicale/metadata.py

@@ -14,9 +14,44 @@ defaults = {
             'tank/radicale': {
                 'mountpoint': '/var/lib/radicale',
                 'needed_by': {
+                    'directory:/var/lib/radicale/collections',
                     'pkg_apt:python3-radicale',
                 },
             },
         },
     },
 }
+
+
+@metadata_reactor.provides(
+    'nginx/vhosts/radicale',
+)
+def nginx(metadata):
+    if not node.has_bundle('nginx'):
+        raise DoNotRunAgain
+
+    return {
+        'nginx': {
+            'vhosts': {
+                'radicale': {
+                    'domain': metadata.get('radicale/domain'),
+                    'locations': {
+                        '/': {
+                            'target': 'http://[::1]:22050',
+                            'auth': {
+                                'file': '/etc/radicale/htpasswd',
+                            },
+                            'proxy_set_header': {
+                                'X-Remote-User': '$remote_user',
+                            },
+                        },
+                        '/.web/': {
+                            'target': 'http://[::1]:22050',
+                        }
+                    },
+                    'website_check_path': '/.web/',
+                    'website_check_string': 'Radicale',
+                },
+            },
+        },
+    }