,

Ansible - delete all files into a folder

    - name: delete all files on mountpoint /var/log/ - mkdir empty dir
      file: state=directory path=/dev/shm/empty

    - name: delete all files on mountpoint /var/log - rsync empty dir
      synchronize: src=/dev/shm/empty/ dest=/var/log/ recursive=yes delete=yes
      delegate_to: "{{ inventory_hostname }}"