条件为true时的Ansible跳过
如果找不到要装入的磁盘,我想格式化它。为此,我有以下任务:条件为true时的Ansible跳过,ansible,Ansible,如果找不到要装入的磁盘,我想格式化它。为此,我有以下任务: - name: Check if drives are already mounted shell: df | grep "{{item.drive}}" | wc -l with_items: "{{disks}}" register: disks_checked changed_when: False - name: output debug debug: var=disks_checked - name:
- name: Check if drives are already mounted
shell: df | grep "{{item.drive}}" | wc -l
with_items: "{{disks}}"
register: disks_checked
changed_when: False
- name: output debug
debug: var=disks_checked
- name: Make filesystem
become: yes
filesystem:
fstype: ext4
dev: "{{item.item.drive}}"
opts: -m 0 -F -E lazy_itable_init=0,lazy_journal_init=0,discard"
when: "item.stdout == 0"
with_items: '{{disks_checked.results}}'
这是剧本:
TASK [install-cassandra : Check if drives are already mounted] *********************************************************************************************************************************
ok: [10.142.0.3] => (item={u'directory': u'/var/lib/mysql', u'mount_point': u'/mnt/disks', u'drive': u'/dev/sdb'})
TASK [install-cassandra : output debug] ********************************************************************************************************************************************************
ok: [10.142.0.3] => {
"disks_checked": {
"changed": false,
"msg": "All items completed",
"results": [
{
"_ansible_ignore_errors": null,
"_ansible_item_label": {
"directory": "/var/lib/mysql",
"drive": "/dev/sdb",
"mount_point": "/mnt/disks"
},
"_ansible_item_result": true,
"_ansible_no_log": false,
"_ansible_parsed": true,
"changed": false,
"cmd": "df | grep \"/dev/sdb\" | wc -l",
"delta": "0:00:00.005613",
"end": "2019-03-07 09:48:50.293829",
"failed": false,
"invocation": {
"module_args": {
"_raw_params": "df | grep \"/dev/sdb\" | wc -l",
"_uses_shell": true,
"argv": null,
"chdir": null,
"creates": null,
"executable": null,
"removes": null,
"stdin": null,
"warn": true
}
},
"item": {
"directory": "/var/lib/mysql",
"drive": "/dev/sdb",
"mount_point": "/mnt/disks"
},
"rc": 0,
"start": "2019-03-07 09:48:50.288216",
"stderr": "",
"stderr_lines": [],
"stdout": "0",
"stdout_lines": [
"0"
]
}
]
}
}
TASK [install-cassandra : Make filesystem] *****************************************************************************************************************************************************
skipping: [10.142.0.3] => (item={'_ansible_parsed': True, 'stderr_lines': [], u'changed': False, u'stdout': u'0', '_ansible_item_result': True, u'delta': u'0:00:00.005613', 'stdout_lines': [u'
0'], '_ansible_item_label': {u'directory': u'/var/lib/mysql', u'mount_point': u'/mnt/disks', u'drive': u'/dev/sdb'}, u'end': u'2019-03-07 09:48:50.293829', '_ansible_no_log': False, 'failed':
False, u'cmd': u'df | grep "/dev/sdb" | wc -l', 'item': {u'directory': u'/var/lib/mysql', u'mount_point': u'/mnt/disks', u'drive': u'/dev/sdb'}, u'stderr': u'', u'rc': 0, u'invocation': {u'mod
ule_args': {u'warn': True, u'executable': None, u'_uses_shell': True, u'_raw_params': u'df | grep "/dev/sdb" | wc -l', u'removes': None, u'argv': None, u'creates': None, u'chdir': None, u'stdi
n': None}}, u'start': u'2019-03-07 09:48:50.288216', '_ansible_ignore_errors': None})
如您所见,stdout为0,但在上一个任务中当:item.stdout==0时,当评估条件时,它会跳过,就好像条件为false一样。
如果我将条件更改为when:item.stdout=='0',则上一个任务的错误会变得更奇怪:
TASK [install-cassandra : Make filesystem] *****************************************************************************************************************************************************
failed: [10.142.0.3] (...) "module_stderr": "Shared connection to 10.142.0.3 closed.\r\n"(...)
为什么情况没有按预期进行评估?为什么它会在第二种情况下断开连接?正如欧洲核子研究所指出的那样,第二种解决方案应该是可行的。。。问题是opts行末尾的报价。。。真不敢相信我在其他地方找这个问题花了两个小时
我保留答案和问题,因为错误连接关闭与问题无关,其他人可能会遇到此问题。您是否测试了手动放入驱动器后生成文件系统任务是否有效?在我的测试ansible版本2.7.5上,通过一般调试,第二个条件有效。您可以删除周围的条件顺便说一句。@CERN_Fan谢谢,检查我对问题的回答…-'