Ansible Task Looping Directives: Difference between revisions

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Line 29: Line 29:
     msg: "{{ item }}"
     msg: "{{ item }}"
   with_items: "{{ find_result.files | json_query('[*].path') }}"
   with_items: "{{ find_result.files | json_query('[*].path') }}"
</syntaxhighlight>
==<tt>loop</tt>==
Takes a list for the task to iterate over, saving each list element into the <code>item</code> variable (configurable via <code>[[#loop_control|loop_control]]</code>)
<syntaxhighlight lang='yaml'>
jdks:
  - corretto8
  - corretto11
...
- name: Multiple items in a loop
  homebrew_cask:
    name: "{{ item }}"
    state: present
  loop: "{{ jdks }}"
</syntaxhighlight>
An existing variable's field that reference a list can be used:
<syntaxhighlight lang='yaml'>
- name: Debug
  debug:
    var: item.path
    loop: "{{ some_task_result.files }}"
</syntaxhighlight>
</syntaxhighlight>


Revision as of 05:17, 5 July 2021

External

Internal

Overview

Loops

with_items

An iterator whose elements can be accessed with item.<element>. The content to iterate over may came from in-line declaration or from a variable.

In-line declaration: 

- name: debug
  debug:
    msg: "{{ item }}"
  with_items:
    - A
    - B
    - C

Variable: 

- name: Find some files
  find:
    paths: '/some/dir'
    patterns: '*.txt'
  register: find_result
- name: debug
  debug:
    msg: "{{ item }}"
  with_items: "{{ find_result.files | json_query('[*].path') }}"

loop_control

with_<lookup_plugin>

The same as loop but adds the output of any lookup plugin to generate the item list.

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