#!/usr/bin/env ansible-playbook
---
#==============================================================#
# File      :   infra-rm.yml
# Desc      :   uninstall pigsty infra module
# Ctime     :   2022-02-22
# Mtime     :   2022-12-08
# Path      :   infra-rm.yml
# Author    :   Ruohang Feng (rh@vonng.com)
# License   :   AGPLv3
#==============================================================#


#---------------------------------------------------------------
# Usage
#---------------------------------------------------------------
# ./infra-rm.yml               # remove everything about infra
# ./infra-rm.yml -t service    # stop infra services
# ./infra-rm.yml -t data       # remove infra data
# ./infra-rm.yml -t package    # uninstall infra packages
#---------------------------------------------------------------


#--------------------------------------------------------------#
# Remove Infrastructure
#--------------------------------------------------------------#
- name: INFRA REMOVE
  become: yes
  hosts: infra
  gather_facts: no
  ignore_errors: yes
  tasks:

    #---------------------------------------------
    # Stop Service
    #---------------------------------------------
    - name: stop infra service
      systemd: name={{ item }} state=stopped enabled=no daemon_reload=yes
      tags: service
      with_items:
        - alertmanager
        - pushgateway
        - blackbox_exporter
        - prometheus
        - loki
        - grafana-server
        - nginx_exporter
        - nginx
        - dnsmasq


    #---------------------------------------------
    # Remove conf
    #---------------------------------------------
    - name: remove infra conf
      file: state=absent path="{{ item }}"
      tags: config
      vars: { systemd_dir: "{% if os_package is defined and os_package == 'deb' %}/lib/systemd/system/{% else %}/usr/lib/systemd/system{% endif %}" }
      with_items:
        - /etc/pigsty
        - /etc/pki/infra.crt
        - /etc/pki/infra.key
        - /etc/alertmanager.yml
        - /etc/default/alertmanager
        - "{{ systemd_dir }}/alertmanager.service"
        - /etc/blackbox.conf
        - /etc/default/blackbox_exporter
        - "{{ systemd_dir }}/blackbox_exporter.service"
        - /etc/default/pushgateway
        - "{{ systemd_dir }}/pushgateway.service"
        - /etc/prometheus
        - /etc/default/prometheus
        - "{{ systemd_dir }}/prometheus.service"
        - /etc/loki.yml
        - "{{ systemd_dir }}/loki.service"
        - /etc/grafana
        - "{{ systemd_dir }}/grafana.service"
        - /etc/nginx/
        - /etc/default/nginx_exporter
        - "{{ systemd_dir }}/nginx.service"
        - "{{ systemd_dir }}/nginx_exporter.service"
        - /etc/dnsmasq.conf
        - "{{ systemd_dir }}/dnsmasq.service"


    #---------------------------------------------
    # Remove Env
    #---------------------------------------------
    - name: remove infra env
      become: no
      file: state=absent path="{{ item }}"
      tags: env
      with_items:
        - '~/.pg_service.conf'
        - '~/.servers.json'
        - '~/.pgpass'
        - '~/.pigsty'
        - '~/.pgpass'


    #---------------------------------------------
    # Remove Infra Data
    #---------------------------------------------
    - name: remove infra data
      file: state=absent path="{{ item }}"
      tags: data
      with_items:
        - "{{ prometheus_data|default('/data/prometheus') }}"
        - "{{ loki_data|default('/data/loki') }}"
        - "{{ nginx_home|default('/www') }}"
        - /var/lib/grafana
        - /etc/hosts.d


    #---------------------------------------------
    # Uninstall Packages
    #---------------------------------------------
    - name: uninstall infra packages
      yum: name={{ item }} state=removed
      tags: package
      with_items:
        - alertmanager
        - pushgateway
        - blackbox_exporter
        - prometheus2
        - loki
        - grafana
        - nginx_exporter
        - nginx
        - dnsmasq
        - mcli
        - logcli


...