ansible- 在所有服务器上运行第一个任务并移动到第二个任务 [英] ansible- run first task on all servers and move to 2nd task

问题描述

如何做这个逻辑.

在清单中的所有 4 个服务器上运行第一个任务并在 ls_file 中注册然后使用第二个任务向用户发送一封包含 ls_file 内容的邮件

run first task on all 4 servers in inventory and register in ls_file Then using 2nd task send a SINGLE mail to user with the contents of ls_file

   - name: check file
     shell: ls -l /var/abcd.txt
     register: ls_file




   - name: send mail to user
     mail:
       host: relay.server
       port: 25
       from: [e-mail]
       to: manager <[e-mail]>
       subject: file availability
       

邮件正文应如下所示.

       server1 - -rw-------. 1 root root 4405 Apr 20  2020 /var/abcd.txt
       server2 - -rw-------. 1 root root 4405 Apr 12  2020 /var/abcd.txt
       server3 - -rw-------. 1 root root 4405 Mar 15  2020 /var/abcd.txt
       server4 - -rw-------. 1 root root 4405 Apr 19  2020 /var/abcd.txt

推荐答案

简而言之:

  - name: send mail to user
    mail:
      host: relay.server
      port: 25
      from: [e-mail]
      to: manager <[e-mail]>
      subject: file availability
      body: |-
        {% for servervars in hostvars | dict2items | map(attribute="value") | selectattr('ls_file', 'defined') %}
          {{ servervars.inventory_hostname }} - {{ servervars.ls_file.stdout }}
        {% endfor %}
    delegate_to: localhost
    run_once: true

这将在您的邮件中为存在变量 ls_file 的任何服务器创建一行.

This will create a line in your mail for any server where the variable ls_file exists.

一些值得一读的参考:

• Jinja2 for 控制结构
• 剧本委托，控制任务运行的位置
• Ansible 特殊变量(查找 hostvars)
• Playbook 关键字(查找 run_once代码>).

• Jinja2 for control structure
• Playbook delegation, controlling where task run
• Ansible special variables (look for hostvars)
• Playbook keywords (look for run_once).

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