fix(ansible): enable vm.overcommit_memory only for app nodes (redis)

ansible/roles/base/tasks/main.yml

@@ -80,3 +80,11 @@
     state: started
     daemon_reload: yes
   when: hetzner_floating_ip is defined
+
+- name: Set vm.overcommit_memory = 1 for Redis (App Nodes Only)
+  ansible.posix.sysctl:
+    name: vm.overcommit_memory
+    value: '1'
+    state: present
+    reload: yes
+  when: inventory_hostname in groups['app']