Ansible:用 blockinfile 注释掉定义的 python 代码块?

Ansible: comment out a defined python code block with blockinfile?

尝试使用 Ansible 对服务器 (websocket.py) 文件中的几行进行注释,但由于某种原因,我的代码没有在 OPCODE_CONTINUATION.

之前添加第二个注释块

想法是在 "slots" 行前一行添加三个引号,在 "OPCODE_CONTINUATION" 行前添加三个引号。我当前的解决方案试图找到带有正则表达式的行,但显然有问题,因为只添加了第一个注释块。

Ansible 版本 2.0.1.0 (2016/02/22 11:04:54)

websocket.py 的片段:

__slots__ = ('utf8validator', 'utf8validate_last', 'environ', 'closed',
             'stream', 'raw_write', 'raw_read', 'handler')

OPCODE_CONTINUATION = 0x00

Ansible 剧本:

---
- name: First comment
  blockinfile:
    dest: /usr/local/lib/python2.7/site-packages/geventwebsocket/websocket.py
    insertbefore: '\w{9}\s\W\s\W{2}\w{13}'
    state: present
    block: |
      """

- name: Second comment
  blockinfile:
    dest: /usr/local/lib/python2.7/site-packages/geventwebsocket/websocket.py
    insertbefore: '\s{4}\w{19}\s\W\s\d\w\d\d'
    state: present
    block: |
      """     

结果

# BEGIN ANSIBLE MANAGED BLOCK
"""
# END ANSIBLE MANAGED BLOCK
__slots__ = ('utf8validator', 'utf8validate_last', 'environ', 'closed',
             'stream', 'raw_write', 'raw_read', 'handler')

OPCODE_CONTINUATION = 0x00

文件:Websocket.py

标记blockinfile 模块的主要标识符。请参阅 docs 中的 marker 选项。

制造商默认为 # {mark} ANSIBLE MANAGED BLOCK,这是您在修改后的文件中看到的。在第二个任务中,Ansible 在文件中找到了那些确切的标记,并假定该块存在。

如果您像这样为每个任务提供独特的标记,它应该会起作用:

- name: First comment
  blockinfile:
    dest: /usr/local/lib/python2.7/site-packages/geventwebsocket/websocket.py
    insertbefore: '\w{9}\s\W\s\W{2}\w{13}'
    state: present
    marker: "# {mark} FIRST COMMENT"
    block: '    """'

- name: Second comment
  blockinfile:
    dest: /usr/local/lib/python2.7/site-packages/geventwebsocket/websocket.py
    insertbefore: '\s{4}\w{19}\s\W\s\d\w\d\d'
    state: present
    marker: "# {mark} SECOND COMMENT"
    block: '    """'