diff --git a/playbooks/deploy_grafana.yml.ansible b/playbooks/deploy_grafana.yml.ansible
index da36bb2..2055826 100644
--- a/playbooks/deploy_grafana.yml.ansible
+++ b/playbooks/deploy_grafana.yml.ansible
@@ -11,6 +11,7 @@
     - name: Create List with right interface
       ansible.builtin.set_fact:
         node_ips_eth0: "{{ groups['grafana_servers'] | map('extract', hostvars, ['ansible_facts', 'eth0', 'ipv4', 'address']) }}"
+      when: inventory_hostname in groups['postgresql']
 
     - name: Fügen Sie die Gitea pg_hba Einträge zur Patroni-Liste hinzu
       ansible.builtin.set_fact:
@@ -27,6 +28,7 @@
         postgresql_App_db_owner: "{{ grafana_db_user }}"
         postgresql_App_db_owner_password: "{{ grafana_db_password }}"
         postgresql_App_db_name: "{{ grafana_db_name }}"
+      when: inventory_hostname in groups['postgresql']
 
 - hosts: 
   - grafana_servers