fix

tasks/install.yml

@@ -25,7 +25,7 @@
     --admin-user "{{ nextcloud_admin_user }}"
     --admin-pass "{{ nextcloud_admin_pass }}"
     --database "{{ nextcloud_database_type }}"
-    --database-host "{{ nextcloud_database_host == inventory_hostname | ternary('localhost',nextcloud_database_host) }}"
+    --database-host "{{ (nextcloud_database_host == inventory_hostname) | ternary('localhost',nextcloud_database_host) }}"
     --database-name "{{ nextcloud_database_name }}"
     --database-user "{{ nextcloud_database_user }}"
     --database-pass "{{ nextcloud_database_pass }}"

tasks/mysql.yml

@@ -3,7 +3,7 @@
 - name: mysql user
   mysql_user:
     name: "{{ nextcloud_database_user }}"
-    host: "{{ nextcloud_database_host == inventory_hostname | ternary('localhost',ssh_ip) }}"
+    host: "{{ (nextcloud_database_host == inventory_hostname) | ternary('localhost',ssh_ip) }}"
     password: "{{ nextcloud_database_pass }}"
     priv: "{{nextcloud_database_name}}.*:ALL"
   delegate_to: "{{ nextcloud_database_host }}"