Ansible 将两个不同的文件变量添加到单个任务中，循环遍历多个文件

问题描述

# cat file1
fostrain01.example.com
fostrain02.example.com
fostrain03.example.com

file2

的内容

# cat fil2
ServerIPS 171.20.20.16 171.20.20.17 171.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25

在下面的剧本中，它替换了两行的内容，一行是主机名作为 str，另一行替换 ip 所以，我已经完成了两个不同的任务 1) 替换字符串在文件中 &2) 替换文件中的ip来完成这个调用定义的变量.

In the below playbook, its replacing the contents on two lines one is hostname as str and in another line replacing the ip So, i have taken the two different task 1) Replace strings in file & 2) Replace ip in file to accomplish this calling the variable defined.

- name: Replace string in hosts file
  hosts: all
  gather_facts: false
  vars:
    files:
      - /etc/file1
      - /etc/file2
    from_str: "fostrain01.example.com"
      to_str: "dbfoxtrain01.example.com"
     from_ip: "^(.*)171\\.20\\.20\\.18(.*)$"
       to_ip: "\\g<1>172.20.20.18\\g<2>"
  tasks:
    - name: Replace strings in file
      replace:
        path: "{{ item}}"
        regexp: "{{ from_str }}"
        replace: "{{ to_str }}"
        backup: yes
      loop: "{{ files }}"

    - name: Replace ip in file
      replace:
        path: "{{ item}}"
        regexp: "{{ from_ip }}"
        replace: "{{ to_ip }}"
        backup: yes
      loop: "{{ files }}"

我们能否按如下方式编写任务，其中我们并没有真正写入两个不同的任务，我尝试过但没有了解如何使用以下方法遍历 "{{ files }}.

Can we write the task as follows something where we don't really write to two different tasks, i tried but not getting how to loops through "{{ files }} with below approach.

  tasks:
    - name: Replace elements in file
      replace:
        path: "{{ item.path }}"
        regexp: "{{ item.From }}"
        replace: "{{ item.To }}"
        backup: yes
      loop:
        # Replace the desired string
        - { path: "{{ item }}", From: "{{ from_str }}", To: "{{ to_str }}" }
        # Replace the desired ip
        - { path: "{{ item}}", From: "{{ from_ip }}", To: "{{ to_ip}}" }

什么是期望的变化:

task 1) 替换文件中的字符串 &任务 2) 替换文件中的 ip 将其合并为一个.

What is Desired Change:

task 1) Replace strings in file & task 2) Replace ip in file to be clubbed into One.

# cat file1
dbfoxtrain01.example.com  <-- Changed
fostrain02.example.com
fostrain03.example.com

# cat fil2
ServerIPS 171.20.20.16 171.20.20.17 172.20.20.18 171.20.20.19 171.20.20.20  <-- changed here ^172
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25

推荐答案

下面的任务完成工作

    - replace:
        path: "{{ item.path }}"
        regexp: "{{ item.from }}"
        replace: "{{ item.to }}"
      loop:
        - path: file1
          from: 'fostrain01\.example\.com'
          to: 'dbfoxtrain01.example.com'
        - path: file2
          from: '171\.20\.20\.18'
          to: '172.20.20.18'

示例

shell> tree .
.
├── file1
├── file1.orig
├── file2
├── file2.orig
└── test.yml

0 directories, 5 files

shell> cat file1
fostrain01.example.com
fostrain02.example.com
fostrain03.example.com

shell> cat file2
ServerIPS 171.20.20.16 171.20.20.17 171.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25

shell> cat test.yml
- hosts: localhost
  gather_facts: false
  tasks:
    - replace:
        path: "{{ item.path }}"
        regexp: "{{ item.from }}"
        replace: "{{ item.to }}"
      loop:
        - path: file1
          from: 'fostrain01\.example\.com'
          to: 'dbfoxtrain01.example.com'
        - path: file2
          from: '171\.20\.20\.18'
          to: '172.20.20.18'

shell> ansible-playbook test.yml

PLAY [localhost] ************************************************

TASK [replace] **************************************************
changed: [localhost] => (item={'path': 'file1', 'from': 'fostrain01\\.example\\.com', 'to': 'dbfoxtrain01.example.com'})
changed: [localhost] => (item={'path': 'file2', 'from': '171\\.20\\.20\\.18', 'to': '172.20.20.18'})

PLAY RECAP ******************************************************
localhost: ok=1 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0

shell> cat file1
dbfoxtrain01.example.com
fostrain02.example.com
fostrain03.example.com

shell> cat file2
ServerIPS 171.20.20.16 171.20.20.17 172.20.20.18 171.20.20.19 171.20.20.20
ServerIPS 171.20.20.21 171.20.20.22 171.20.20.23 171.20.20.24 171.20.20.25

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