Ensure collectd backup config on startup

src/cloudron.js

@@ -105,6 +105,12 @@ function runStartupTasks() {
     // configure nginx to be reachable by IP
     reverseProxy.writeDefaultConfig(NOOP_CALLBACK);
 
+    // this configures collectd to collect backup storage metrics if filesystem is used. This is also triggerd when the settings change with the rest api
+    settings.getBackupConfig(function (error, backupConfig) {
+        if (error) return console.error('Failed to read backup config.', error);
+        backups.configureCollectd(backupConfig, NOOP_CALLBACK);
+    });
+
     // always generate webadmin config since we have no versioning mechanism for the ejs
     if (settings.adminDomain()) reverseProxy.writeAdminConfig(settings.adminDomain(), NOOP_CALLBACK);