Ansible loops and conditions with arrays

ansiblestdout

I want to be able to control the behaviour of a module by specifying a changed_when condition. This works fine when executing a simple task like the one in the docs:

- command: some command
  register: command_result
  changed_when: "command_result.rc != 2"

The problem comes when I start using loops. I can't figure out how to access stderr, stdout, rc results from the current iteration of a loop. For example:

- command: aptly mirror update some-mirror
  register: aptly_output
  changed_when: "?item?.stdout | search('Download queue: 0 items')"

All results go to aptly_output.results, but how do I access the result of the current iteration?

Best Answer

In one of our roles we do this:

- name: themes | activate
  command: "wp-cli --allow-root --no-color --path='{{ item.0.path }}' theme activate {{ item.1.name }}"
  register: check_activate_theme
  changed_when: "'Success: Switched to' in check_activate_theme.stdout"
  with_subelements:
    - wordpress_installs
    - themes
  when: item.1.name and item.1.activate | default(false)
  tags:
    - wordpress-themes-activate-theme

I think this should also work for your use case.

Related Solutions

How to see stdout of ansible commands

I think you can register the result to a variable, then print with debug.

- name: print to stdout
  command: echo "hello"
  register: hello

- debug: msg="{{ hello.stdout }}"

- debug: msg="{{ hello.stderr }}"

Ansible loops over lists and array mixin

According to your comments you want to create directories for obj.services.#.dirs.tmpdir items with details from obj.metadata. The solution with width_items: "{{ object.services }}" is nearly working - but you don't have access to obj.metadata. The thing is - there is only one obj.metadata at all and so you don't need to refer to it in the loop. You can use it directly.

- name: Creating directories for server and client mode.
  file:
    path: "{{ item.dirs['tmpdir'] }}"
    state: directory
    owner: "{{ obj.metadata.uuid }}"
    group: "{{ obj.metadata.uuid }}"
    mode: 0750
  with_items:
    - "{{ obj.services }}"

Best Answer

Related Solutions

How to see stdout of ansible commands

Ansible loops over lists and array mixin

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