---
# 校验 Loki 是否安装
- name: '<{{ cmd | upper }}> | 校验 Loki 是否安装'
  stat:
    path: '{{ flag }}'
  register: ret

# 安装 Loki
- block: 
  - name: '<{{ cmd | upper }}> | 创建 Loki 相关目录'
    file:
      path: '{{ item.value }}'
      state: directory
    loop: '{{ loki.dir | dict2items }}'

  - name: '<{{ cmd | upper }}> | 安装 Loki'
    template: 
      src: '{{ item.src }}'
      dest: '{{ item.dest }}'
    loop:
    - src: docker-compose.yml.j2
      dest: '{{ loki.dir.main }}/docker-compose.yml'
    - src: conf/loki-config.yaml.j2
      dest: '{{ loki.dir.conf }}/loki-config.yaml'

  - name: '<{{ cmd | upper }}> | 启动 Loki 容器'
    shell: |
      . /etc/profile
      chown -R 10001.10001 {{ loki.dir.conf }}
      cd {{ loki.dir.main }}
      docker-compose down
      docker-compose up -d

  - name: '<{{ cmd | upper }}> | 等待 Loki 服务启动'
    wait_for:
      port: '{{ loki.port }}'

  - name: '<{{ cmd | upper }}> | 创建 Loki 安装标记'
    shell: |
      set -ex
      mkdir -p ~/.flag
      touch {{ flag }}

  when:
  - cmd == "install"
  - not ret.stat.exists
  - loki.enable

# 卸载 Loki
- block:
  - name: '<{{ cmd | upper }}> | 卸载 Loki'
    shell: |
      . /etc/profile
      cd {{ loki.dir.main }}
      docker-compose down

  - name: '<{{ cmd | upper }}> | 清除 Loki 相关文件'
    shell: |
      rm -rf {{ loki.dir.main }}
      rm -rf {{ flag }}

  when:
  - cmd == "remove"
  - ret.stat.exists
  - loki.enable