在 Ansible 中使用模板模块附加文件

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问题描述

所以我有一个使用 Jinja2 模板创建日志文件的 ansible playbook.每次我运行剧本时，它都会从 customer.yml 中提取客户信息并将完成的模板输出到stunnel.conf"文件中.模板工作正常，但我试图找到一种方法来附加以前的stunnel.conf"，而不是使用模板模块覆盖它.我希望手动将文本添加到 'stunnel.conf' 的开头而不是覆盖它.你认为这可能吗?

So I have an ansible playbook that is using a Jinja2 template to create a log file. Everytime I run the playbook it is pulling in customer information from customers.yml and outputting the completed template into a 'stunnel.conf' file. The template works fine but I am trying to find a way to append the previous 'stunnel.conf' rather than overwriting it using the Template module. I wish to add text to the beginning of the 'stunnel.conf' manually and not have it overwritten. Do you think this would be possible?

Stunnel.conf

; GFAM - PBSTP
[customer-GFAM-34074]
cert = /etc/stunnel/stunnel.pem
accept = 34094
connect = 35094

; GUANFABANK - FXSIM
[customer-GUANFABANK-34051]
cert = /etc/stunnel/stunnel.pem
accept = 34095
connect = 35095

; ONEZERO2 - TRADESTREAM
[customer-ONEZERO2-39124]
cert = /etc/stunnel/stunnel.pem
accept = 34096
connect = 35096

; BTG-VELOCITY - PBSTP
[customer-BTG-VELOCITY-42533]
cert = /etc/stunnel/stunnel.pem
accept = 34097
connect = 35097

Jinja2 模板

{#CONTEXT: {{ customers }}#}
{% set currentport = 34093%}
{% for cust, config in customers.items() %}
; {{ cust }} - {{ config['type'] }}
[customer-{{ cust }}-{{ config['accept'] }}]
cert = {{ "/etc/stunnel/stunnel.pem" }}
{#accept = {{ config['accept'] }}#}
{#connect = {{ config['connect'] }}#}
accept = {{ currentport + 1 }}
connect = {{ currentport + 1001 }}
{% set currentport = currentport + 1 %}

{% endfor %}

playbook.yml

- include_vars:
    file: /home/vagrant/stunnelSimAnsPractice/roles/ns16/vars/customers.yml
    name: customers

- template:
    src: /home/vagrant/stunnelSimAnsPractice/roles/ns16/templates/stunnel.j2
    dest: /home/vagrant/stunnelSimAnsPractice/roles/ns16/output/stunnel.conf
    owner: root
    group: root

推荐答案

您可以使用 blockinfile 模块和模板查找以管理 stunnel.conf 中的每个客户端块:

You can use blockinfile module and template lookup to manage per-client blocks in your stunnel.conf:

- include_vars:
    file: customers.yml
    name: customers

- blockinfile:
    dest: stunnel.conf
    block: "{{ lookup('template', 'stunnel.j2') }}"
    marker: "; {mark} ANSIBLE MANAGED BLOCK FOR {{ cust }}"

为了便于阅读，我缩短了文件路径.

这样 Ansible 将寻找特定客户端的托管块({{ cust }} 变量)并添加/替换来自模板化 stunnel.j2 的内容.

This way Ansible will look for managed block for specific client ({{ cust }} variable) and add/replace with content from templated stunnel.j2.

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