backup-wordpress.yml

---
# 備份環境的指令稿
- hosts: "{{ target_host }}"
  vars_files:
    # 建置過程的機密資訊
    - vars-credentials.yml
 
  tasks:
    - name: 停止 httpd
      service:
        name: httpd
        state: stopped
      become: yes
      become_user: root

    - name: 建立備份資料用的資料夾
      file:
        path: /home/{{ ansible_user }}/wp-backup/latest
        state: directory

    - name: 從資料倒資料表到備份用的資料夾
      mysql_db:
        name: "{{ wp_db_name }}"
        state: dump
        target: /home/{{ ansible_user }}/wp-backup/latest/backup.sql
        login_user: "{{ mariadb_wp_user }}"
        login_password: "{{ mariadb_wp_user_pwd }}"

    - name: 從資料庫備份系統檔案到備份用的資料夾
      command: "rsync -rlgo {{ project_path }}/{{ host_name }} /home/{{ ansible_user }}/wp-backup/latest/ --specials --exclude .git"
      # 這些 rsync 參數的意義
      # -r, --recursive             recurse into directories
      # -l, --links                 copy symlinks as symlinks
      # -o, --owner                 preserve owner (super-user only)
      # -g, --group                 preserve group
      # --specials              preserve special files
      # --exclude=PATTERN       exclude files matching PATTERN
      # rsync 可能會不複製所有檔名包含 .git 的檔案，但我一時想不到解法，因此暫時先這樣做

    - name: 壓縮備份資料夾並加上日期註記
      archive:
        path: /home/{{ ansible_user }}/wp-backup/latest
        dest: /home/{{ ansible_user }}/wp-backup/my-personal-website-backup-{{ ansible_date_time.year }}{{ ansible_date_time.month }}{{ ansible_date_time.day }}-{{ ansible_date_time.hour }}{{ ansible_date_time.minute }}.gz
        format: gz
        mode: 0755
        
    - name: 重新啟動 httpd
      service:
        name: httpd
        state: started
      become: yes
      become_user: root
  
    - name: 刪除剛才建立的工作目錄
      file:
        path: /home/{{ ansible_user }}/wp-backup/latest
        state: absent