fix template override

tasks/main.yml

@@ -13,11 +13,11 @@
   register: keepalived_setup
 
 - name: Template keepalived.conf
-  when: keepalived_config_override is not defined
+  when: keepalived_config_override is not defined or keepalived_config_override | length < 0
   block:
   - name: Merge config for keepalived
     set_fact:
-      keepalived_config: "{{ keepalived_default_config | combine(keepalived_config, recursive=true) }}"
+      keepalived_combined_config: "{{ keepalived_default_config | default({}) | combine(keepalived_config| default({}), recursive=true) }}"
 
   - name: Add keepalived config
     template:
@@ -32,7 +32,9 @@
     dest: "/etc/keepalived/keepalived.conf"
   notify:
     - Restart keepalived
-  when: keepalived_config_override is defined
+  when: 
+    - keepalived_config_override is defined
+    - keepalived_config_override | length > 0
 
 - name: Create dir for scripts
   file: