#!/usr/bin/env ansible-playbook
---
#==============================================================#
# File      :   pgsql-promtail.yml
# Ctime     :   2021-04-07
# Mtime     :   2021-07-06
# Desc      :   install and launch promtail on target nodes
# Path      :   pgsql-promtail.yml
# Copyright (C) 2018-2021 Ruohang Feng ([email protected])
#==============================================================#

#---------------------------------------------------------------
- name: Promtail Init   # init promtail on common database nodes
  become: yes
  hosts: all
  gather_facts: no
  roles:
    - role: promtail
      tags: promtail
#---------------------------------------------------------------
...