Ansible:循环执行我们的shell命令(Linux用户组搜索)结果并显示组
检查组是否存在的任务
- name: "Checking if group doesn't exist"
shell: "grep -i {{ item.group }} /etc/group"
register: presence
loop: "{{ UserAddList.add_users }}"
ignore_errors: true
no_log: true
Json输入文件:
UserAddList是一个json文件
{
"add_users": [
{
"name": "test1_123",
"group": "test1_123",
"additional_groups":
[
"test2",
"group1"
],
"password" : "test1_newcdsaf",
"sudo_entry": "ALL=(ALL) NOPASSWD: ALL",
"comment": "test1"
}
],
"delete_users": [
]
}
显示组的任务不存在
- name: The following groups does't' exist
debug:
msg:
"{{ item._ansible_item_label.group }}"
loop: "{{ presence.results }}"
输出:
(item={
'_ansible_parsed': True,
'stderr_lines': [
],
u'changed': True,
u'stdout': u'',
'_ansible_item_result': True,
u'msg': u'non-zero return code',
u'delta': u'0:00:00.008175',
'stdout_lines': [
],
'_ansible_item_label': {
u'comment': u'test1',
u'password': u'test1_newcdsaf',
u'group': u'test1_123',
u'name': u'test1_123',
u'sudo_entry': u'ALL=(ALL) NOPASSWD: ALL',
u'additional_groups': [
u'test2',
u'group1'
]
},
u'end': u'2019-12-10 14:23:15.725676',
'_ansible_no_log': True,
'item': {
u'comment': u'test1',
u'password': u'test1_newcdsaf',
u'group': u'test1_123',
u'name': u'test1_123',
u'sudo_entry': u'ALL=(ALL) NOPASSWD: ALL',
u'additional_groups': [
u'test2',
u'group1'
]
},
u'cmd': u'grep -i test1_123 /etc/group',
u'failed': True,
u'stderr': u'',
u'rc': 1,
u'invocation': {
u'module_args': {
u'warn': True,
u'executable': None,
u'_uses_shell': True,
u'_raw_params': u'grep -i test1_123 /etc/group',
u'removes': None,
u'argv': None,
u'creates': None,
u'chdir': None,
u'stdin': None
}
},
u'start': u'2019-12-10 14:23:15.717501'
})=>{
"changed": false,
"item": {
"changed": true,
"cmd": "grep -i test1_123 /etc/group",
"delta": "0:00:00.008175",
"end": "2019-12-10 14:23:15.725676",
"failed": true,
"invocation": {
"module_args": {
"_raw_params": "grep -i test1_123 /etc/group",
"_uses_shell": true,
"argv": null,
"chdir": null,
"creates": null,
"executable": null,
"removes": null,
"stdin": null,
"warn": true
}
},
"item": {
"additional_groups": [
"test2",
"group1"
],
"comment": "test1",
"group": "test1_123",
"name": "test1_123",
"password": "test1_newcdsaf",
"sudo_entry": "ALL=(ALL) NOPASSWD: ALL"
},
"msg": "non-zero return code",
"rc": 1,
"start": "2019-12-10 14:23:15.717501",
"stderr": "",
"stderr_lines": [
],
"stdout": "",
"stdout_lines": [
]
},
"msg": "test1_123"
}
我不想显示整个输出,我只想显示组信息。
调试也将打印所有输入数据。
请提出任何建议
答案 0 :(得分:0)
调试也将打印所有输入数据。
实际上不是打印数据的debug:
任务,而是ansible向您显示了正在循环的数据。但是,您正在顶层loop:
列表中使用presence.results
,并且.results
不仅包含您关注的输出,还包含调用参数,成功或失败以及实际的返回您关心的数据
有两种方法可以解决该问题:告诉ansible您只希望它在循环标签中显示较小的内容,或者将loop:
更改为实际上仅循环显示已删除的用户
第一种方式,loop_control:
可以做到这一点(它甚至引用了您在文档中所说的确切情况当遍历复杂的数据结构时,任务的控制台输出可能非常庞大。显示的输出,请使用带有loop_control的label指令):
- name: The following groups does't' exist
debug:
msg:
"{{ item._ansible_item_label.group }}"
loop: "{{ presence.results }}"
loop_control:
label: "{{ item.item.name }}"
第二种方式,只需选择您关心的组,然后msg:
进行选择即可:
- name: The following groups does't' exist
debug:
msg:
"{{ item }}"
loop: "{{ presence.results | map(attribute='item') | map(attribute='group') | list }}"