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How to use when condition in ansible yaml file? – CentOS

I want something like:

if env == ‘dev’

  - hosts: "{{host}}"
    user: root

else if env == ‘prod’

 - hosts: "{{host}}"
   user: centos

How to do that?

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2

Answers


  1. 0

    Ansible uses the Jinja2 templating engine, which lets you do:

    {% if env == 'dev' %}
- hosts: "{{host}}"
  user: root
{% elif env == 'prod' %}
- hosts: "{{host}}"
  user: centos
{% endif %}
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  2. 0

    I prefer not to put these kind of decisions into the template itself, I would use something like this in the config:

    user_by_env:
  dev: root
  prod: centos

user: "{{ user_by_env[env] }}"

    Then in the template:

    - hosts: "{{ host }}"
  user: "{{ user }}"

    This also loudly fails in case the env is not dev/prod instead of silently producing an incorrect file.

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