subelements - traverse nested key from a list of dictionaries  New in version 1.4.   Synopsis Parameters Examples Return Values 
Status Author    Synopsis  Subelements walks a list of hashes (aka dictionaries) and then traverses a list with a given (nested sub-)key inside of those records.  Parameters   Parameter Choices/Defaults Configuration Comments    _terms required       tuple of list of dictionaries and dictionary key to extract     skip_missing   Default:no     If set to True, the lookup plugin will skip the lists items that do not contain the given subkey. If False, the plugin will yield an error and complain about the missing subkey.     Examples - name: show var structure as it is needed for example to make sense
  hosts: all
  vars:
    users:
      - name: alice
        authorized:
          - /tmp/alice/onekey.pub
          - /tmp/alice/twokey.pub
        mysql:
            password: mysql-password
            hosts:
              - "%"
              - "229-997-0194"
              - "8b7c:f320:99b9:690f:4595:cd17:293a:c069"
              - "localhost"
            privs:
              - "*.*:SELECT"
              - "DB1.*:ALL"
        groups:
          - wheel
      - name: bob
        authorized:
          - /tmp/bob/id_rsa.pub
        mysql:
            password: other-mysql-password
            hosts:
              - "db1"
            privs:
              - "*.*:SELECT"
              - "DB2.*:ALL"
  tasks:
    - name: Set authorized ssh key, extracting just that data from 'users'
      authorized_key:
        user: "{{ item.0.name }}"
        key: "{{ lookup('file', item.1) }}"
      with_subelements:
         - "{{ users }}"
         - authorized

    - name: Setup MySQL users, given the mysql hosts and privs subkey lists
      mysql_user:
        name: "{{ item.0.name }}"
        password: "{{ item.0.mysql.password }}"
        host: "{{ item.1 }}"
        priv: "{{ item.0.mysql.privs | join('/') }}"
      with_subelements:
        - "{{ users }}"
        - mysql.hosts

    - name: list groups for user that have them, dont error if they don't
      debug: var=item
      with_list: "{{lookup('subelements', users, 'groups', 'skip_missing=True')}}"
 Return Values Common return values are documented here, the following are the fields unique to this lookup:   Key Returned Description    _list     list of subelements extracted      Status Author  Serge van Ginderachter <nicole75@example.org>   Hint If you notice any issues in this documentation you can edit this document to improve it. 

    © 2012–2018 Michael DeHaan
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