This playbook is used to perform bulk files rename on remote hosts

rename-bulk-files-with-ansible.yml

- hosts: all
  gather_facts: no
  become: yes
  tasks:
    - shell: ls /files/* 
      register: files_to_rename

    - copy: 
        src: "{{ item.1 }}"
        dest: "/files/file-{{ item.0 + 1 }}"
        remote_src: yes
      with_indexed_items: "{{ files_to_rename.stdout_lines }}"

    - file:
        path: "{{ item }}"
        state: absent
      with_items: "{{ files_to_rename.stdout_lines }}"

# Reference:
#  If you just want the filenames without fullpath
#  (cd /remote; find . -maxdepth 1 -type f) | cut -d'/' -f2