same tags are being created multiple times

[Greg Lutostanski]

The same tags are being created multiple times.

Leading to tracebacks in the enlist_maas_nodes

2017-09-19-06:48:46 INFO 'maas 140019266597104 tags create name=beartic comment=beartic tag'
2017-09-19-06:48:48 INFO 'maas 140019266597104 tag update-nodes beartic add=kxg7er'
2017-09-19-06:48:52 INFO 'maas 140019266597104 tags create name=compute comment=compute tag'
2017-09-19-06:48:54 INFO 'maas 140019266597104 tag update-nodes compute add=kxg7er'
2017-09-19-06:48:55 INFO 'maas 140019266597104 machines create architecture=amd64/generic mac_addresses=ec:b1:d7:73:1d:58 hostname=duision power_parameters_power_address=192.168.246.112 power_type=ipmi power_parameters_power_user=Administrator power_parameters_power_pass=insecure power_parameters_power_driver=LAN_2_0'
2017-09-19-06:49:00 INFO 'maas 140019266597104 tags create name=duision comment=duision tag'
2017-09-19-06:49:02 INFO 'maas 140019266597104 tag update-nodes duision add=f4qxtm'
2017-09-19-06:49:06 INFO 'maas 140019266597104 tags create name=control comment=control tag'
2017-09-19-06:49:08 INFO 'maas 140019266597104 tag update-nodes control add=f4qxtm'
2017-09-19-06:49:11 INFO 'maas 140019266597104 tags create name=compute comment=compute tag'
2017-09-19-06:49:13 ERROR Failed maas command: ('maas', '140019266597104', 'tags', 'create', 'name=compute', 'comment=compute tag')
Traceback (most recent call last):
  File "/home/cdoqa/cdoqa-system-tests/cdoqa/maas.py", line 58, in _run
    output = subprocess.check_output(cmd)
  File "/usr/lib/python2.7/subprocess.py", line 574, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
CalledProcessError: Command '('maas', '140019266597104', 'tags', 'create', 'name=compute', 'comment=compute tag')' returned non-zero exit status 2
2017-09-19-06:49:13 ERROR Output: {"name": ["Tag with this Name already exists."]}

from:
https://10.245.162.101/artifacts/73817516-e3b6-4146-aade-0c95eeffd947/enlist_maas_nodes_582/enlist_maas_nodes_582_console.out

Even happens on good runs, and does not effect build status.

[Jason Hobbs (jason-hobbs)]

We no longer use this stack.