ansible 索引 主机清单

---
- hosts: all
  gather_facts: false
  tasks:
    - name: 1
      set_fact:
        host: "{{ ansible_play_hosts_all |length }}"

    - debug: var=host
    
    - name: 2
      set_fact:
         container_name_index: "{{ansible_play_hosts.index(inventory_hostname)}}" 
    - debug: var=container_name_index