deployment with custom roles fails

[Mihai Plasoianu]

Env is train on centos7.

During an overcloud deployment with custom roles containing no services, the following error appears during config-download task 'Wait for containers to start for step 1 using paunch':

 'stderr_lines': [u'docker runtime is deprecated in Stein and will be removed in Train.',
                  u'Traceback (most recent call last):',
                  u' File "/home/tripleo-admin/.ansible/tmp/ansible-tmp-1587645146.03-245996906548020/AnsiballZ_paunch.py", line 114, in <module>',
                  u' _ansiballz_main()',
                  u' File "/home/tripleo-admin/.ansible/tmp/ansible-tmp-1587645146.03-245996906548020/AnsiballZ_paunch.py", line 106, in _ansiballz_main',
                  u' invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)',
                  u' File "/home/tripleo-admin/.ansible/tmp/ansible-tmp-1587645146.03-245996906548020/AnsiballZ_paunch.py", line 49, in invoke_module',
                  u" imp.load_module('__main__', mod, module, MOD_DESC)",
                  u' File "/tmp/ansible_paunch_payload_n_mqO9/__main__.py", line 250, in <module>',
                  u' File "/tmp/ansible_paunch_payload_n_mqO9/__main__.py", line 246, in main',
                  u' File "/tmp/ansible_paunch_payload_n_mqO9/__main__.py", line 177, in __init__',
                  u' File "/tmp/ansible_paunch_payload_n_mqO9/__main__.py", line 201, in paunch_apply',
                  u' File "/usr/lib/python2.7/site-packages/paunch/__init__.py", line 84, in apply',
                  u' return builder.apply()',
                  u' File "/usr/lib/python2.7/site-packages/paunch/builder/base.py", line 63, in apply',
                  u' changed = self.delete_missing(container_names)',
                  u' File "/usr/lib/python2.7/site-packages/paunch/builder/base.py", line 192, in delete_missing',
                  u' for cn in container_names:',
                  u"TypeError: 'NoneType' object is not iterable"]}

[wes hayutin (weshayutin)]

can you please attach some logs?

[Mihai Plasoianu (m1p)]

I already attached all relevant logs. Unfortunately I won't be able to recreate this env anytime soon. The problem is when no services are assigned to a role, Docker and any containers aren't present.

builder/base.py", line 192, in delete_missing',
                  u' for cn in container_names:',
                  u"TypeError: 'NoneType' object is not iterable"]}