如何使用Ansible将多个主机的日志文件复制到一个主机目录，该目录由源主机ip命名？

Question

我需要分析来自多个主机的nginx日志文件。

首先，我想将它们复制到主机目录。例如，我希望将nginx错误日志文件从6台主机复制到目标主机目录。

[serverB]
192.168.0.10
[serverA]
192.168.0.2
192.168.0.3
192.168.0.4
192.168.0.5

- hosts: serverB
  tasks:    
   - name: Copy Remote-To-Remote (from serverA to serverB)
     synchronize: src=/var/log/nginx/nginx_error.log dest=/var/log/nginx_error/
     delegate_to: serverA

问题是我不能知道如何使用源ip地址命名dest文件？

Answer 1

我没有高雅的解决办法。这里有些变通办法。要使用源ip命名dest文件，可以使用Ansible定义的ANSIBLE_HOSTNAME或INVIDORY_HOSTNAME变量。在执行之前，请确保已经在ansible controller中创建了/tmp/nginx_logs/目录。

---
- name : Copy Remote
  hosts: serverA, serverB
  tasks:
  - name: Copy the files from the Source Machine(serverA) to Ansible Controller
    synchronize:
      mode: pull
      src: /var/log/nginx/nginx_error.log
      dest: "/tmp/nginx_logs/test_{{ ansible_hostname }}.txt"
    when: "inventory_hostname in groups['serverA']"

  - name: Copy log files to the destination server
    copy:
      src: /tmp/nginx_logs/
      dest: /var/log/nginx_error/
    when: "inventory_hostname in groups['serverB']"