- name: Gather facts from all hosts
  hosts: dev
  gather_facts: true
  become: true
  tasks:
    - name: Install node exporter on dev hosts
      ansible.builtin.apt:
        name: "{{ prometheus_package }}"
        state: present
      loop:
        - prometheus-node-exporter-collectors
        - prometheus-node-exporter
      loop_control:
        loop_var: prometheus_package
- hosts: 
  - prometheus_servers
  gather_facts: true
  become: true
  roles:
  - handlers
  - prometheus