使用盐的输出作为 SLS 状态或支柱的输入? [英] Using the output of salt to be used as input for an SLS state or pillar?

问题描述

例如，我想找到所有带有某个标签的节点，获取它们的 IP 地址，然后生成一个配置文件分发给这些节点.

For example, I want to find all nodes with a certain tag, grab their IP address, then generate a config file to distribute to those nodes.

一个用例可能是一个需要了解每个其他节点的数据库，但可以随时添加和删除节点.

A use case might be a database that needs to know about every other node, but can have nodes added and removed at any time.

推荐答案

您可以使用 Salt Mine 来完成.首先，将此配置分发给所有 Minion:

You can use Salt Mine to do it. First, distribute this configuration to all the Minions:

mine_functions:
  grains.item:
    - roles
    - fqdn_ip4

使用该配置，每个 Minion 都会将这两个 Grain 发布给所有其他 Minion.有关我的更多详细信息此处.

With that configuration, every Minion will publish those two grains to all other minions. More details about Mine here.

现在，我们可以创建一个文件，所有名称都为 role=db.

Now, we can create a file with all the names with role=db.

/tmp/mydbhosts:
  file:
    - managed
    - source: salt://example/myhosts
    - template: mako

模板示例/myhosts:

The template example/myhosts:

% for minion, peer_grains in salt['mine.get']('*', 'grains.items').items():
% if "db" in peer_grains["role"]:
minion peer_grains["fqdn_ip4"]
% endif
% endfor

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