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在ansible中,如何在文件末尾添加一个文本块,在标记前面加一个空行?

ansible-2.x ansible

puravidaso · 技术社区 · 4 年前

- hosts: localhost
  tasks:
    - name: update a file
      blockinfile:
        dest: /tmp/test
        block: |
          line 1
          line 2

运行playbook时,文件 /tmp/test 变成:

a # this is the end line of the original file
# BEGIN ANSIBLE MANAGED BLOCK
line 1
line 2
# END ANSIBLE MANAGED BLOCK

我想在标记前加一个空行(换行符) # BEGIN ANSIBLE MANAGED BLOCK “对于视觉效果,最简单的方法是什么?最好在任务范围内,但任何想法都是受欢迎的。如果我重新定义标记,它将同时影响“BEGIN”和“END”标记。

0 回复 | 直到 4 年前

Vladimir Botka 4 年前

使用 . 例如

- hosts: localhost
  tasks:
    - name: update a file
      blockinfile:
        dest: /tmp/test
        block: |
          line 1
          line 2
    - name: insert empty line before the marker
      lineinfile:
        dest: /tmp/test
        insertbefore: '^# BEGIN ANSIBLE MANAGED BLOCK$'
        line: ''

不幸的是 在前面插入 不能用更多的积木。模板

试试下面的剧本。不幸的是,EOF没有像预期的那样工作

shell> cat manage-block.yml
- name: "insert {{ my_marker }} in {{ my_dest }}"
  blockinfile:
    dest: "{{ my_dest }}"
    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ my_marker }}"
    block: "{{ my_block }}"
- name: "insert empty line before {{ my_marker }}"
  lineinfile:
    dest: "{{ my_dest }}"
    insertbefore: '^# BEGIN ANSIBLE MANAGED BLOCK {{ my_marker }}'
    line: 'empty line'
  when: ansible_loop.first
- name: "insert empty line after EOF"
  lineinfile:
    dest: "{{ my_dest }}"
    insertafter: EOF
    line: 'empty line'

- hosts: localhost
  vars:
    my_blocks:
      /tmp/test:
        - my_marker: block001
          my_block: |
            line 1
            line 2
        - my_marker: block002
          my_block: |
            line 3
            line 4
  tasks:
    - include_tasks: manage-block.yml
      with_subelements:
        - "{{ my_blocks|dict2items }}"
        - value
      loop_control:
          extended: true
      vars:
        my_dest: "{{ item.0.key }}"
        my_marker: "{{ item.1.my_marker }}"
        my_block: "{{ item.1.my_block }}"

Î².ÎµÎ·Î¿Î¹Ï.Î²Îµ grigorevp 4 年前

如果您使用的是Ansible 2.5或更高版本,则可以更改 marker , marker_begin marker_end .

下面是一个示例剧本:

- hosts: all
  gather_facts: no

  tasks:
    - blockinfile:
        dest: /tmp/test
        marker: '{mark} ANSIBLE MANAGED BLOCK'
        marker_begin: '\n# BEGIN' 
        marker_end: '# END'
        block: |
          line 1
          line 2

这将产生概述:

PLAY [all] ********************************************************************************************************

TASK [blockinfile] ************************************************************************************************
changed: [localhost]

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

文件呢 /tmp/测试 最终是:

a
 
# BEGIN ANSIBLE MANAGED BLOCK
line 1
line 2
# END ANSIBLE MANAGED BLOCK

puravidaso 4 年前

下面在模式前添加一个空行,当模式不存在时,它是幂等的,不会添加到文件的末尾。

- hosts: localhost
  gather_facts: no
  tasks:
    - name: update a file
      replace:
        dest: /tmp/foobar
        regexp: '(?smx) (?<!\n\n) ^ (foobar)$'
        replace: "\n\\1"