如何在 Ansible 中用"complex"节点替换 XML 节点？

Question

我如何使用xml模块，它是幂等的(运行两次时没有"更改"(来获得示例所需的状态？

示例：

初始状态，bar节点仅包含文本：

<?xml version="1.0" encoding="UTF-8"?>
<root>
<foo>foo</foo>
<bar>bar</bar>
<baz>baz</baz>
</root>

所需状态，bar节点包含：

• 各种节点
• 此节点同时包含标记和文本

<?xml version="1.0" encoding="UTF-8"?>
<root>
<foo>foo</foo>
<bar name="bar">
<content name="1" type="text">lorem</content>
<content name="2" type="yml">lorem: ipsum</content>
</verbose>
</bar>
<baz>baz</baz>
</root>

我的尝试：

---
- hosts: localhost
vars:
xml_text: >-
<?xml version='1.0' encoding='UTF-8'?>
<root>
<foo>foo</foo>
<bar><barbar/></bar>
<baz>baz</baz>
</root>
tasks:
- name: "Substitute bar. Bad: wipes the other nodes"
xml:
xmlstring: "{{ xml_text }}"
xpath: /root
input_type: xml
set_children: |-
<bar>
<verbose />
<content name="1" type="text">lorem</content>
<content name="2" type="yml">lorem: ipsum</content>
</bar>
register: result
- debug:
var: result
# Imitating https://github.com/ansible-collections/community.general/blob/main/tests/integration/targets/xml/tasks/test-set-children-elements-level.yml
- name: "Substitute bar. Bad: Can't do both tags ans values"
xml:
xmlstring: "{{ xml_text }}"
xpath: /root/bar
input_type: yaml
set_children:
- verbose: "1"
- content:
name: "1"
type: text
#     _ : lorem
#     "": lorem
#     ~ : lorem
- content: "lorem: ipsum"
#       name: 2
#       type: yml
register: result
- debug:
var: result
- name: "Substitute bar. Bad: Fails"
xml:
xmlstring: "{{ xml_text }}"
xpath: /root/bar
input_type: xml
set_children: |-
<verbose />
<content name="1" type="text">lorem</content>
<content name="2" type="yml">lorem: ipsum</content>
register: result
- debug:
var: result

Answer 1

我认为您需要对XML内容使用空节点(键"_&"(。看见https://github.com/cmprescott/ansible-xml/issues/101

例如

- name: Configure proxy in maven
xml:
path: /etc/maven/settings.xml
namespaces:
mvn: http://maven.apache.org/SETTINGS/1.0.0
xpath: /mvn:settings/mvn:proxies
pretty_print: yes
set_children:
- proxy:
_:
- id: "proxy"
- active: "true"
- protocol: "http"
- host: '{{ proxied_proxy_node }}'
- port: '{{ proxied_proxy_port | string }}'
when: maven_settings_file.stat.exists

Answer 2

这在2021-05-26是不可能的。
一个bug正在等待贡献者：

• https://github.com/ansible-collections/community.general/issues/2372#issuecomment-846535215