Some important features in Ansible that I'd like to see ('creates', 'removes', 'run_once_by')

[Alexey Vazhnov]

Hi!

I want to suggest a few major and valuable, as I see it, features and invite community to discuss:

* Add 'creates' and 'removes' parameters for any task, not only for modules like 'shell', as it works now.

* Add 'run_once_by' parameter for running task once for each unique value of 'run_once_by'.

For example: I have a variable 'ec2_region' and need to create security groups once in region, so I'll able to do the following:

- name:
  sudo: False
  delegate_to: 127.0.0.1
  run_once_by: "{{ ec2_region }}"
  ec2_group:
    …

So, I think these are may be pretty useful and often appliable for practic usage.

[Alexey Vazhnov]

Moved to «Ansible Development» https://groups.google.com/d/msg/ansible-devel/kYUi8fvKZMI/vRdYrKYbFwAJ