make cron optional

defaults/main.yml

@@ -5,9 +5,11 @@ submodules_versioncheck: false
 postgresql_backup:
   required_packages:
     - postgresql-client
+    - cron
   backup_dir: /var/backup/postgresql
   date_format: '%Y-%m-%d_%H-%M'
   user: root
+  cron: true
   cron_minute: '*'
   cron_hour: '0'
   databases: []

tasks/main.yml

@@ -1,7 +1,7 @@
 ---
 - name: combine postgresql_backup configuration
   set_fact:
-    ranger: "{{ _postgresql_backup|combine(postgresql_backup, recursive=True) }}"
+    postgresql_backup: "{{ _postgresql_backup|combine(postgresql_backup, recursive=True) }}"
 
 - include_tasks: versioncheck.yml
   when: submodules_versioncheck|bool
@@ -26,3 +26,4 @@
     hour: "{{ postgresql_backup.cron_hour | default( '0' ) }}"
     job: /opt/postgresql-backup-script.sh >/dev/null 2>&1
     user: "{{ postgresql_backup.user }}"
+  when: postgresql_backup.cron

vars/main.yml

@@ -2,13 +2,15 @@
 _postgresql_backup:
   required_packages:
     - postgresql-client
+    - cron
   backup_dir: /var/backup/postgresql
   date_format: '%Y-%m-%d_%H-%M'
   user: root
+  cron: true
   cron_minute: '*'
   cron_hour: '0'
   databases: []
 
 # versionscheck
-playbook_version_number: 20 # should be int
+playbook_version_number: 21 # should be int
 playbook_version_path: 'role-postgresql-backup_roles-ansible_github.com.version' # unique string