Import carddav database schema. I'm unable to run this against the vagrant VM as the webmail_db_password seems to be automatically generated.

roles/webmail/handlers/main.yml

@@ -0,0 +1,2 @@
+- name: import sql carddav
+  action: shell PGPASSWORD='{{ webmail_db_password }}' psql -h localhost -d {{ webmail_db_database }} -U {{ webmail_db_username }} -f /usr/share/roundcube/plugins/carddav/dbinit/postgres.sql --set ON_ERROR_STOP=1

roles/webmail/tasks/roundcube.yml

@@ -21,6 +21,7 @@
 
 - name: Copy carddav plugin files to /usr/share/roundcube/plugins/carddav
   shell: cp -R rcmcarddav-carddav_{{ carddav_version }}/* /usr/share/roundcube/plugins/carddav/ chdir=/root
+  notify: import sql carddav
 
 - name: Link carddav plugin into /var/lib/roundcube/plugins
   file: state=link src=/usr/share/roundcube/plugins/carddav dest=/var/lib/roundcube/plugins/carddav force=yes