根据 AWS 标签分配 ansible 变量 [英] Assign ansible vars based on AWS tags
问题描述
我正在尝试根据我在 AWS 中拥有的标签找出一种在 Ansible 中分配变量的方法.我正在尝试使用 ec2_remote_tags
但它返回的信息比我需要的要多得多.似乎应该有一种更简单的方法来做到这一点,而我只是没有想到.
I'm trying to figure out a way to assign variables in Ansible based on tags I have in AWS. I was experimenting with ec2_remote_tags
but it's returning alot more information than I need. It seems like there should be an easier way to do this and I'm just not thinking of it.
例如,如果我有一个名为 function
的标签,它使用动态库存创建了 tag_function_api
组,并且我想分配一个变量 function
到值 api
.有什么想法可以有效地做到这一点吗?
For example, if I have a tag called function
that creates the tag_function_api
group using dynamic inventory and I want to assign a variable function
to the value api
. Any ideas on an efficient way to do this?
推荐答案
我已经成功地制作了一个带有值列表的标签字典:
I've managed to make a dict of tags with lists of values:
- hosts: localhost
tasks:
- ec2_remote_facts:
region: eu-west-1
register: ec2_facts
# get all possible tag names
- set_fact: tags="{{ item.keys() }}"
with_items: "{{ ec2_facts.instances | map(attribute='tags') | list }}"
register: tmp_tags
# get flattened list of tags (for some reason lookup() returns string, so we use with_)
- assert: that=true
with_flattened: "{{ tmp_tags.results | map(attribute='ansible_facts.tags') | list }}"
register: tmp_tags
# get unique tag names
- set_fact: tags="{{ tmp_tags.results | map(attribute='item') | list | unique }}"
- set_fact: my_tags="{{ {} }}"
# get all possible values for a given tag
- set_fact:
my_tags: "{{ my_tags | combine( {''+item: ec2_facts.instances | map(attribute='tags.'+item) | select('defined') | list | unique}) }}"
with_items: "{{ tags }}"
- debug: var=my_tags
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