Question

我设置了一系列变量。称他们为Hosts和Inthosts。每个都有一个适当的值集，如调试输出中所示。当我尝试将inthosts的值分配给主机时，它实际上并不会使它们相同，它会将双引号更改为单引号并放置一个＆＃34; u＆＃34;在每个＆＃34;项目＆＃34;前面。有没有办法强制Ansible在这种情况下实际上做一个文字等于不解析文本？该文本应该被视为一个字符串。在这种情况下，＆＃34;修改＆＃34;值正在输出到文件，而更改会破坏事物。计划是使用默认主机，如果相关服务器应使用不同的服务器集，则使用inthosts覆盖它。

默认变量设置

filebeat_kafka_hosts: '["x.compute-1.amazonaws.com:9093", "y.compute-1.amazonaws.com:9093"]'

filebeat_kafka_inthosts: '["x.compute-1.amazonaws.com:9093", "y.compute-1.amazonaws.com:9093", "z.compute-1.amazonaws.com:9093"]'

Ansible Code

- debug:
    msg: "Hosts {{ filebeat_kafka_hosts }} "

- debug:
    msg: "IntHosts {{ filebeat_kafka_inthosts }} "

- set_fact:
    filebeat_kafka_hosts="{{ filebeat_kafka_inthosts  }}"

- debug:
    msg: "Inthosts -> hosts {{ filebeat_kafka_hosts }} "

输出（已修改）

"msg": "Hosts [\"x.compute-1.amazonaws.com:9093\", \"y.compute-1.amazonaws.com:9093\"] "                                                                                                                                               |

"msg": "IntHosts [\"x.compute-1.amazonaws.com:9093\", \"y.compute-1.amazonaws.com:9093\", \"z.compute-1.amazonaws.com:9093\"] "

set  {"ansible_facts": {"filebeat_kafka_hosts": ["x.compute-1.amazonaws.com:9093", "y.compute-1.amazonaws.com:9093", "z.compute-1.amazonaws.com:9093"]}, "changed": false}

"msg": "Inthosts -> hosts [u'x.compute-1.amazonaws.com:9093', u'y.compute-1.amazonaws.com:9093', u'z.compute-1.amazonaws.com:9093'] "

Answer 1

Ansible将filebeat_kafka_inthosts和filebeat_kafka_hosts解释为列表。这给了你＆＃39; u＆＃39;调试中每个项目之前的字符。以下任务

  - debug:
      msg: "{{ item }}"
    with_items: "{{ filebeat_kafka_hosts }}"

  - debug:
      msg: "{{ item }}"
    with_items: "{{ filebeat_kafka_inthosts }}"

会给你

TASK [debug] *******************************************************************
ok: [127.0.0.1] => (item=y.compute-1.amazonaws.com:9093) => {
    "item": "y.compute-1.amazonaws.com:9093", 
    "msg": "y.compute-1.amazonaws.com:9093"
}
ok: [127.0.0.1] => (item=x.compute-1.amazonaws.com:9093) => {
    "item": "x.compute-1.amazonaws.com:9093", 
    "msg": "x.compute-1.amazonaws.com:9093"
}

TASK [debug] *******************************************************************
ok: [127.0.0.1] => (item=x.compute-1.amazonaws.com:9093) => {
    "item": "x.compute-1.amazonaws.com:9093", 
    "msg": "x.compute-1.amazonaws.com:9093"
}
ok: [127.0.0.1] => (item=y.compute-1.amazonaws.com:9093) => {
    "item": "y.compute-1.amazonaws.com:9093", 
    "msg": "y.compute-1.amazonaws.com:9093"
}
ok: [127.0.0.1] => (item=z.compute-1.amazonaws.com:9093) => {
    "item": "z.compute-1.amazonaws.com:9093", 
    "msg": "z.compute-1.amazonaws.com:9093"
}

由于您将此行写入文件，因此您不必过于担心。＆＃39; u＆＃39; character是调试模块的副作用。将变量写入文件会产生相同的结果（尽管使用单引号而不是双引号）。

- lineinfile:
    path: some_file
    line: "{{ filebeat_kafka_hosts }}"

<强> SOME_FILE

['x.compute-1.amazonaws.com:9093', 'y.compute-1.amazonaws.com:9093', 'z.compute-1.amazonaws.com:9093']

如果您确实需要双引号，可以使用to_json过滤器

- lineinfile:
    path: some_file
    line: "{{ filebeat_kafka_hosts | to_json }}"

<强> SOME_FILE

["x.compute-1.amazonaws.com:9093", "y.compute-1.amazonaws.com:9093", "z.compute-1.amazonaws.com:9093"]

Answer 2

似乎将变量转换为字符串也有效。谢谢你的建议！

Ansible在设置时更改变量值

2 个答案: