create tasks for cron extension

roles/common/tasks/postgres_cron.yml

@@ -61,6 +61,20 @@
     login_password: "{{ postgresql_admin_password }}"
     login_host: "{{ lxc_ip }}"
 
+- name: "Grant privileges  USAGE schema cron to the timescaledb user {{ timescaledb_database_user }}"
+  tags:
+    - install
+    - timescaledb_install
+  postgresql_privs:
+    db: "{{ timescaledb_database_name }}"
+    privs: USAGE
+    type: schema
+    obj: "cron"
+    role: "{{ timescaledb_database_user }}"
+    login_user: "postgres"
+    login_password: "{{ postgresql_admin_password }}"
+    login_host: "{{ lxc_ip }}"
+
 - name: "Restart postgresql service"
   tags:
     - install