Ansible：如何在文件中提取字典键值

好吧，我以为会是wasy，但我最终还是抓伤了头

我有一个字典格式的

tracker.txt

文件：

/oracle/db/19.0.0：
回降：
30621255: 
29213893: 
29867728: 
29802382: 
28318139: 
适用于：
28318139: 
29213893: 
28788272: 
31431771: 
32044280: 

我试图使文件内容最终看起来像这样：

/oracle/db/19.0.0：
回降：
30621255:成功
29213893：成功
29867728：成功
29802382：成功
28318139：成功
适用于：
28318139: 
29213893: 
28788272: 
31431771: 
32044280: 

这是我的

uf.yml

剧本：

---
-主机：本地主机
收集事实：不
变量：
oracle\u home:/oracle/db/19.0.0
rblist:[30621255、29213893、29867728、29802382、28318139]
任务：
-名称：更新文件
包括：upd.yml
有以下项目：
-“{{rblist}默认值（[]）}”
回路控制：
循环变量：plist\u项
时间：plist_item |默认值（[]）

这是

upd.yml

包含的任务文件

---
-调试：msg={plist_item}
-名称：更新状态
local_action replace:path=tracker.txt regexp=“{plist_item}}:”replace=“{{plist_item}}:Success”在='rollback'之后，在='apply'之前

但是当我运行这个时，我会出错

[oracle@anstrlsrv lib]$ ansible-playbook uf.yml

PLAY [localhost] ************************************************************************************************************************************************************************************************************************

TASK [update file] **********************************************************************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"reason": "We were unable to read either as JSON nor YAML, these are the errors we got from each:\nJSON: No JSON object could be decoded\n\nSyntax Error while loading YAML.\n  mapping values are not allowed in this context\n\nThe error appears to be in '/stage/ap/ansible/lib/upd.yml': line 4, column 94, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- name: update the status\n  local_action replace: path=tracker.txt regexp=\"{{ plist_item }}:\" replace=\"{{ plist_item }}: Success\" after='rollback' before='apply'\n                                                                                             ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}
fatal: [localhost]: FAILED! => {"reason": "We were unable to read either as JSON nor YAML, these are the errors we got from each:\nJSON: No JSON object could be decoded\n\nSyntax Error while loading YAML.\n  mapping values are not allowed in this context\n\nThe error appears to be in '/stage/ap/ansible/lib/upd.yml': line 4, column 94, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- name: update the status\n  local_action replace: path=tracker.txt regexp=\"{{ plist_item }}:\" replace=\"{{ plist_item }}: Success\" after='rollback' before='apply'\n                                                                                             ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}
fatal: [localhost]: FAILED! => {"reason": "We were unable to read either as JSON nor YAML, these are the errors we got from each:\nJSON: No JSON object could be decoded\n\nSyntax Error while loading YAML.\n  mapping values are not allowed in this context\n\nThe error appears to be in '/stage/ap/ansible/lib/upd.yml': line 4, column 94, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- name: update the status\n  local_action replace: path=tracker.txt regexp=\"{{ plist_item }}:\" replace=\"{{ plist_item }}: Success\" after='rollback' before='apply'\n                                                                                             ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}
fatal: [localhost]: FAILED! => {"reason": "We were unable to read either as JSON nor YAML, these are the errors we got from each:\nJSON: No JSON object could be decoded\n\nSyntax Error while loading YAML.\n  mapping values are not allowed in this context\n\nThe error appears to be in '/stage/ap/ansible/lib/upd.yml': line 4, column 94, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- name: update the status\n  local_action replace: path=tracker.txt regexp=\"{{ plist_item }}:\" replace=\"{{ plist_item }}: Success\" after='rollback' before='apply'\n                                                                                             ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}
fatal: [localhost]: FAILED! => {"reason": "We were unable to read either as JSON nor YAML, these are the errors we got from each:\nJSON: No JSON object could be decoded\n\nSyntax Error while loading YAML.\n  mapping values are not allowed in this context\n\nThe error appears to be in '/stage/ap/ansible/lib/upd.yml': line 4, column 94, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- name: update the status\n  local_action replace: path=tracker.txt regexp=\"{{ plist_item }}:\" replace=\"{{ plist_item }}: Success\" after='rollback' before='apply'\n                                                                                             ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}

PLAY RECAP ******************************************************************************************************************************************************************************************************************************
localhost                  : ok=0    changed=0    unreachable=0    failed=5    skipped=0    rescued=0    ignored=0   

我不知道我会错在哪里。我认为的另一个选择是这里记录的东西，但由于我还没有完全理解它，所以还没有大胆尝试：

---

感谢您的帮助。

YAML解析器有问题。您可以通过将该行置于引号中来避免这种情况：

-名称：更新状态
local_action:“replace path=tracker.txt regexp=”{{plist_item}}:“replace=”{{{plist_item}}}：Success''after='rollback'after='apply'”

但为了便于阅读，我建议您将其重写为块：

-名称：更新状态
将_委托给：127.0.0.1#这将替代本地_操作
替换：
路径：tracker.txt
regexp:{{plist_item}}:
替换：“{plist_item}}：成功”
之后：回滚
之前：申请

请注意，此代码不适用于

之前

和

之后

。我能让这两个都能用，但不知何故，当这两个都存在时，Ansible没有做出任何改变，就好像没有对手一样。你可以从这里开始。

下面的剧本

-hosts:localhost
收集事实：错误
变量：
oracle\u home:/oracle/db/19.0.0
rblist:[30621255、29213893]
任务：
-包括以下变量：
文件：tracker.txt
姓名:tracker
-副本：
dest:tracker.txt
内容：|
{
“{oracle_home}}}”
{{tracker[oracle_home]| combine（{'rollback'：rollback}}}
}
变量：
成功：{{dict（rblist | product（['success']））}
回滚：{{tracker[oracle_home]['rollback']| combine（rsucces）}”
-主机：本地主机
收集事实：错误
任务：
-包括以下变量：
文件：tracker.txt
姓名:tracker
-调试：
跟踪器

给予

跟踪器：
/oracle/db/19.0.0：
适用于：
“28318139”：null
“28788272”：null
“29213893”：null
“31431771”：null
“32044280”：空
回降：
“28318139”：null
‘29213893’：成功
“29802382”：null
“29867728”：null
“30621255”：成功

该文件存储在JSON中

shell>cat tracker.txt

{/oracle/db/19.0.0:{“回滚”：{“30621255”：“成功”，“29213893”：“成功”，“29867728”：null，“29802382”：null，“28318139”：null，“30621255”：“成功”，“29213893”：“成功”}，“应用”：{“28318139”：null，“28788272”：null，“31431771”：null，“32044280”：null}}

---

问：“保留track.txt文件……因为它的可读性更好。”

A:有可能。关于如何使用，有两个选项。创建完整的字典跟踪器并使用过滤器

-复制：
dest:tracker.txt
内容：|
{{tracker}to_nice_yaml}

下一个选项是格式化内容并将其发送到_nice_yaml。这两个选项都会使代码更复杂，更容易出错。我会的。有一个问题。比如说

shell>cat tracker.txt | jq。
{
“/oracle/db/19.0.0”：{
“回滚”：{
“30621255”：“成功”，
“29213893”：“成功”，
“29867728”：空，
“29802382”：空，
“28318139”：空
},
“适用”：{
“28318139”：空，
“29213893”：空，
“28788272”：空，
“31431771”：空，
“32044280”：空
}
}
}

---

“理解代码”

读取文件并将变量放入字典跟踪器

-包括变量：
文件：tracker.txt
姓名:tracker
-调试：
跟踪器

给予

跟踪器：
/oracle/db/19.0.0：
适用于：
28318139:null
28788272:null
29213893:null
31431771:null
32044280:空
回降：
28318139:null
29213893:null
29802382:null
29867728:空
30621255:空

创建已成功修补程序的字典

-调试：
var:rsuccess
变量：
成功：{{dict（rblist | product（['success']））}

给予

r成功：
29213893：成功
30621255:成功

将回滚字典与rsuccess相结合

-调试：
msg:“{{rollback}}”
变量：
成功：{{dict（rblist | product（['success']））}
回滚：{{tracker[oracle_home]['rollback']| combine（rsucces）}”

给予

回滚：
28318139:null
29213893：成功
29802382:null
29867728:空
30621255:成功