Question

如果我的情况失败，如何实现从某个位置删除文件。

  - set_fact:
      mysql_dump_file: "{{ db_name }}_backup-{{ ansible_date_time.iso8601 }}.sql"

   - name: create backup of the EMS database
     shell: " mysqldump --single-transaction --triggers --routines --events --hex-blob --complete-insert -h {{ db_name }} -u {{ db_user }} -p{{ db_password }} {{ db_name }} > {{ vars.inventory_dir }}/../{{ mysql_dump_file }}"
     register: db_backup_done

   - name: Fail play if database backup fail
     fail:
       msg: 'The database {{ db_name }} backup fail.'
     when: "db_backup_done.rc != 0"

如果播放失败，我只想删除“mysql_dump_file”。

Answer 1

您还可以使用ansible块。这使你更清楚自己在做什么。

-block:
  - set_fact:
    mysql_dump_file: "{{ db_name }}_backup-{{ ansible_date_time.iso8601 }}.sql"
  - name: create backup of the EMS database
    shell: " mysqldump --single-transaction --triggers --routines --events --hex-blob --complete-insert -h {{ db_name }} -u {{ db_user }} -p{{ db_password }} {{ db_name }} > {{ vars.inventory_dir }}/../{{ mysql_dump_file }}"
    register: db_backup_done
  - name: Fail play if database backup fail
    fail:
    msg: 'The database {{ db_name }} backup fail.'
    when: "db_backup_done.rc != 0"
  rescue:
    - name: Remove the mysql_dump_file if db backup failed
      file: path={{ mysql_dump_file }} state=absent

Answer 2

您可以在“创建EMS数据库备份”任务中添加“ignore_errors: yes”，以便在命令失败并且您可以使用相同的“db_backup_done.rc != 0”条件时播放不会失败删除备份文件。

   - name: create backup of the EMS database
     shell: " mysqldump --single-transaction --triggers --routines --events --hex-blob --complete-insert -h {{ db_name }} -u {{ db_user }} -p{{ db_password }} {{ db_name }} > {{ vars.inventory_dir }}/../{{ mysql_dump_file }}"
     register: db_backup_done
     ignore_errors: yes

   - name: Remove the mysql_dump_file if db backup failed
     file: path={{ mysql_dump_file }} state=absent
     when: "db_backup_done.rc != 0"

如果ansible任务失败，则从特定位置删除现有文件

2 个答案: