我正在尝试使用ansible更新telegraf.conf的[[inputs.ping]]。
telegraf.conf如下所示:
[[inputs.ping]]
urls = ["tac-temp1","tac-temp2", "tac-temp3","tac-temp4"] #tac
count = 30
timeout = 15.0
[inputs.ping.tags]
name = "tac"
[[inputs.ping]]
urls = ["prod-temp1","prod-temp2", "prod-temp3","prod-temp4"] #prod
count = 30
timeout = 15.0
[inputs.ping.tags]
name = "prod"
[[inputs.ping]]
urls = ["test-temp1","test-temp2", "test-temp3","test-temp4"] #test
count = 30
timeout = 15.0
[inputs.ping.tags]
name = "test"
我试图在上述第2行的,"tac-temp10"
之后添加,"tac-temp4"
。
- hosts: Servers
become: yes
become_method: sudo
tasks:
- name: Loading telegraf.conf content for search
shell: cat /tmp/telegraf.conf
register: tele_lookup
- name: Adding Server to /tmp/telegraf.conf if does not exists
lineinfile:
path: /tmp/telegraf.conf
state: present
regexp: '^((.*)"] #tac$)'
line: ',"tac-temp10"'
backup: yes
when: tele_lookup.stdout.find('tac-temp10') != '0'
regexp: '^((.*)"] #tac$)'
将整个行替换为,"tac-temp10"
。预期输出:
[[inputs.ping]]
urls = ["tac-temp1","tac-temp2", "tac-temp3","tac-temp4","tac-temp10"] #tac
count = 30
timeout = 15.0
[inputs.ping.tags]
name = "tac"
答案 0 :(得分:0)
警告:前面的正则表达式很丑。谨防接下来的人(包括经过一段时间的您之后)会对您进行不可理解的了解。
如果没有单个幂等任务,则以下内容会将您的服务器添加到列表的末尾。
- name: add our server if needed
lineinfile:
path: /tmp/test.conf
backup: yes
state: present
regexp: '^( *urls *= *\[)(("(?!tac-temp10)([a-zA-Z0-9_-]*)",? *)*)(\] #tac)$'
backrefs: yes
line: '\1\2, "tac-temp10"\5'
您需要使用反向引用将表达式中已经匹配的部分放回一行。我使用了backup: yes
,因此可以轻松返回到原始版本进行测试。随意放下它。
正如您所看到的(并在我的警告中建议),对于必须快速阅读代码的人来说,这几乎是不可能理解的。如果您需要做更多更复杂的事情,请考虑使用模板并将服务器列表存储在某个位置的变量中。