Ansible register result result.stdout result.rc etc dict variable not found, how to use until loop

Question

ansible/ansible-playbook version: 2.1.2.0 / 2.2.0.0

I'm trying to install a package using yum/apt but as the repository for installing the package is sitting in packagecloud.io, sometimes I'm getting an error message (when I'm passing -vvv while running my ansible-playbook).

[Errno 14] curl#56 - \"TCP connection reset by peer\"\nTrying other mirror. ...some ansible verbose text here.. [Errno 256] No more mirrors to try.

This doesn't happen all the time. If I re-run the same playbook again, it works fine, so the failure (connection reset) is randomly coming.

To overcome this issue, I wanted to use Ansible's until loop which we have to use with a register variable.

So, I created this playbook action by referring Ansible doc for how to use until loop here, but using that syntax I'm getting a 'dictionary' error saying that result variable (registered) dict doesn't have any key named stdout. Then I tried to use result.rc (key field) and it worked on CentOS machine but failed on an Ubuntu 14.x trusty vagrant machine with the following result.rc dict not present error:

- name: Install telegraf agent/collector (RedHat)
  yum:
    name: "{{ agent_collector }}"
    state: "installed"
  when: ( ansible_os_family == 'RedHat' and company_install_collector == true )
  register: result
  until: result.stdout.find("Installed:") != -1
  #The following works in CentOS/RedHat
  #until: result.rc == 0  

 - debug: msg="result (redhat) = {{ result }}"

OR (Update to my question which was obvious)

- name: Install Company Proxy (Ubuntu)
  apt:
    name: "{{ company_proxy_pkg }}"
    state: "installed"
  when: ( ansible_distribution == 'Ubuntu' and company_install_proxy == true )
  register: result
  until: result.rc == 0

 - debug: msg="result (ubuntu) = {{ result }}"

Getting the following error messages (result.stdout -- dict object' has no attribute 'stdout' in both RedHat/CentOS and Ubuntu but getting dict object has no attribute 'rc' only in Ubuntu server) :

fatal: [localhost]: FAILED! => {"failed": true, "msg": "The conditional check '(result.stdout.find(\"Installed:\") != -1)' failed. The error was: error while evaluating conditional ((result.stdout.find(\"Installed:\") != -1)): 'dict object' has no attribute 'stdout'"}

and

fatal: [localhost]: FAILED! => {
    "failed": true, 
    "msg": "The conditional check 'result.rc == 0' failed. The error was: error while evaluating conditional (result.rc == 0): 'dict object' has no attribute 'rc'"
}

Why the register variable (result in my case) is not having stdout or rc dict/variables when the documentation says that those exist or if I can see them in -vvv verbose output on one OS but it doesn't show up on the other OS?

Answer 1

Using tests as filters is deprecated. Instead of using result|succeeded use result is succeeded. This feature will be removed in version 2.9.