ansible 模板将值添加到列表 -
问题描述:
基于以下 ansible playbook 值..
based on the following ansible playbook values ..
target: "actual.domain.com"
aliases:
- "alias1.domain.com"
- "alias2.domain.com"
我正在尝试设置一个 ansible 模板来生成 nginx server_name在这种情况下应该是:
I am trying to setup an ansible template to produce the nginx server_name which in this case should be:
server_name: "actual.domain.com alias1.domain.com alias2.domain.com"
所以,我尝试了以下 jinja2 脚本...
so , I tried the following jinja2 script ...
{% if item.aliases is defined %}
{% set servername = [ item.target ] %}
{% for alias in item.aliases.iteritems() %}
{% if alias|length > 0 %}
{% servername|join(' '), alias %} # <= line 30
{% endif %}
{% endfor %}
server_name {{ servername }};
{% else %}
server_name {{ item.target }};
{% endif %}
....
但它失败了,行号:30,错误:遇到未知标签服务器名"
but it's failing , line number: 30, error: Encountered unknown tag 'servername'
我哪里错了?
感谢您的帮助和 HNY!
thanks for help and HNY !
答
您似乎使这件事变得过于复杂.为什么不是这样的?
It seems you've made this substantially more complicated than necessary. Why not something like this?
$ ansible-playbook -i hosts play.yml
PLAY [localhost] **************************************************************
TASK: [template src='servername.j2' dest=tmp/servername-{{item.target}}] ******
changed: [localhost] => (item={'target': 'actual.domain.com', 'aliases': ['alias1.domain.com', 'alias2.domain.com']})
PLAY RECAP ********************************************************************
localhost : ok=1 changed=1 unreachable=0 failed=0
文件内容
$ tail -n 1000 `find ./ -type f`
==> .//hosts <==
[localhost]
localhost ansible_connection=local
==> .//play.yml <==
- hosts: localhost
gather_facts: false
vars:
servers:
- target: "actual.domain.com"
aliases:
- "alias1.domain.com"
- "alias2.domain.com"
tasks:
- template: src='servername.j2' dest=tmp/servername-{{item.target}}
with_items: servers
==> .//servername.j2 <==
server_name {{ item.target }} {{ item.aliases|join(" ") }}
==> .//tmp/servername-actual.domain.com <==
server_name actual.domain.com alias1.domain.com alias2.domain.com