在ansible模板中生成元组变量 [英] Generating tuples variables in ansible templates

问题描述

我正在尝试设置一个剧本来部署 influxdb 集群.除了我们使用 INfluxDB Cluster Client

I'm trying to setup a playbook to deploy an influxdb cluster. Everything works fine except that we use INfluxDB Cluster Client

我正在生成一个由我们的脚本读取的 production.py 文件.

I am generating a production.py file which is read by our script.

InfluxdbClusterClient 正在等待一个元组列出所有涌入服务器:

InfluxdbClusterClient is waiting for a tuple to list all influx servers :

'hosts': [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2', 8086), ('fr-influxdb-prod-3', 8086)],

我正在尝试从 ansible 变量生成这些元组，但我不知道如何处理.我试过了:

I am trying to generate those tuples from ansible variables but I don't know how to to dat. I tried:

/ Variables /
influxdb_hosts: [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2', 8086), ('fr-influxdb-prod-3', 8086)]

/ Template / 
....
'hosts': {{influxdb_hosts}},
...

不幸的是，它没有按预期工作，因为 Ansible 正在转换列表中的元组(即 [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2',8086), ('fr-influxdb-prod-3', 8086)] 变成 ["('fr-influxdb-prod-1'", "8086)", "('fr-influxdb-prod-2'"," 8086)"," ('fr-influxdb-prod-3'"," 8086)]"

Unfortunately it doesn't work as expected as Ansible is transforming the tuple in list (ie [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2', 8086), ('fr-influxdb-prod-3', 8086)] becomes ["('fr-influxdb-prod-1'", "8086)", "('fr-influxdb-prod-2'"," 8086)"," ('fr-influxdb-prod-3'"," 8086)]"

你知道我做错了什么吗?

Do you see what i'm doing wrong ?

推荐答案

你可以使用折叠块标量来通知 Ansible 参数是一个不应被解析的字符串:

You can use folded block scalar to inform Ansible that the argument is a string which shouldn't be parsed:

influxdb_hosts: >
  [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2', 8086), ('fr-influxdb-prod-3', 8086)],

这是生成的目标文件:

'hosts': [('fr-influxdb-prod-1', 8086), ('fr-influxdb-prod-2', 8086), ('fr-influxdb-prod-3', 8086)],

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