Work around interrupted dpkg run.

roles/up2date_debian/tasks/main.yml

@@ -5,11 +5,21 @@
     update_cache: true
     cache_valid_time: 86400
 
-- name: upgrade packages
+- block:
-  apt:
+    - name: upgrade packages
-    upgrade: dist
+      apt:
-    autoremove: true
+        upgrade: dist
-    autoclean: true
+        autoremove: true
+        autoclean: true
+  rescue:
+    - name: Looks like dpkg was interrupted, configure manually
+      command:
+        cmd: dpkg --configure -a
+    - name: Try again to upgrade packages
+      apt:
+        upgrade: dist
+        autoremove: true
+        autoclean: true
 
 - name: install etckeeper
   apt: