---
- name: 配置官方软件源
  ansible.builtin.import_tasks: repository.yml
- name: 安装集群管理基础包（不安装默认主版本元包）
  ansible.builtin.apt:
    name: postgresql-common
    state: present
- name: 查询已安装包以避免重复制造临时配置变更
  ansible.builtin.package_facts:
    manager: apt
- name: 临时禁止包安装自动建立默认 main 实例
  when: >-
    ['postgresql-18', 'postgresql-client-18', 'pgbackrest']
    | difference(ansible_facts.packages.keys() | list) | length > 0
  block:
    - name: 确保包配置片段目录存在
      ansible.builtin.file:
        path: /etc/postgresql-common/createcluster.d
        state: directory
        mode: '0755'
    - name: 禁止本次 apt postinst 自动初始化
      ansible.builtin.copy:
        dest: /etc/postgresql-common/createcluster.d/90-homelab-no-auto.conf
        content: "create_main_cluster = false\n"
        mode: '0644'
    - name: 安装明确的 PG 主版本与备份工具
      ansible.builtin.apt:
        name: ['postgresql-18', 'postgresql-client-18', pgbackrest]
        state: present
        install_recommends: false
  always:
    - name: 撤回临时包安装选项
      ansible.builtin.file:
        path: /etc/postgresql-common/createcluster.d/90-homelab-no-auto.conf
        state: absent
- name: 在独立 venv 安装固定 Patroni 版本
  ansible.builtin.pip:
    name: 'patroni[etcd3,psycopg3]=={{ pg_patroni_version }}'
    virtualenv: /opt/homelab-patroni
    virtualenv_command: python3 -m venv