add

molecule/default/converge.yml

@@ -2,6 +2,10 @@
 - name: Converge
   hosts: all
  # become: true
-
+  pre_tasks:
+    - name: Update apt cache.
+      apt: update_cache=yes cache_valid_time=600
+      when: ansible_facts.os_family == 'Debian'
+      changed_when: false
   roles:
     - role: 1xtier.node_exporter