[英]Create dictionary with content of a list and it's count with Ansible using Jinja2
我有一個如下列表:
str_lst:
- "someline user1 OK somedata somecommand"
- "someline user1 OK somedata somecommand"
- "someline user1 OK somedata somecommand"
- "someline user2 OK somedata somecommand"
- "someline user2 OK somedata somecommand"
我必須使用“每行的第二個字段”創建一個 map:“它是計數”。
我已嘗試使用以下 Jinja2 代碼,但不確定如何獲取每個項目的總數:
- set_fact:
users: |-
{%- set users = [] -%}
{%- set u_dict = {} -%}
{%- for i in str_lst -%}
{{ users.append(i.split()[1]) }}
{%- endfor -%}
{%- for j in users -%}
{{ u_dict.update({j:j.count(j)}) }}
{%- endfor -%}
{{ u_dict }}
- debug: var=users
Output:
"users": {
"user1": 1,
"user2": 1
}
預期 output:
"users": {
"user1": 3,
"user2": 2
}
任何想法,如何實現這一目標? 提前致謝
您可以使用名為listcount的自定義過濾器,例如:
在 playbook 文件夾中創建一個名為filter_plugins的文件夾,並創建一個名為customfilter.py的文件:
#!/usr/bin/python
class FilterModule(object):
def filters(self):
return {
'listcount': self.listcount
}
def listcount(self, listvar):
result = {}
for l in listvar:
item = l.split()[1]
if item in result:
result[item] += 1
else:
result[item] = 1
return result
劇本:
- hosts: localhost
vars:
str_lst:
- "someline user1 OK somedata somecommand"
- "someline user1 OK somedata somecommand"
- "someline user1 OK somedata somecommand"
- "someline user2 OK somedata somecommand"
- "someline user2 OK somedata somecommand"
tasks:
- set_fact:
users: "{{ str_lst | listcount }}"
- debug:
msg: "{{ users }}"
結果:
ok: [localhost] => {
"msg": {
"user1": 3,
"user2": 2
}
}
沒有 customfilter ,我已經測試了這個 jinja2 代碼,看起來還可以:
tasks:
- set_fact:
users: |-
{%- set dict = {} -%}
{%- for l in str_lst -%}
{%- set i = l.split()[1] -%}
{%- if i in dict -%}
{%- set _ = dict.update({i: dict[i] + 1}) -%}
{%- else -%}
{%- set _ = dict.update({i: 1}) -%}
{%- endif -%}
{%- endfor -%}
{{ dict }}
- debug:
msg: "{{ users }}"
- debug:
msg: "{{ users.user1 }} {{ users.user2 }}"
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