Comment 1 for bug 1816441

mistral-executor fails to start:

+ sudo -E kolla_set_configs
INFO:__main__:Loading config file at /var/lib/kolla/config_files/config.json
INFO:__main__:Validating config file
ERROR:__main__:Unexpected error:
Traceback (most recent call last):
  File "/usr/local/bin/kolla_set_configs", line 412, in main
    config = load_config()
  File "/usr/local/bin/kolla_set_configs", line 297, in load_config
    validate_config(config)
  File "/usr/local/bin/kolla_set_configs", line 238, in validate_config
    if not set(data.keys()) >= required_keys:
AttributeError: 'unicode' object has no attribute 'keys'

http://logs.openstack.org/62/628962/6/check/tripleo-ci-centos-7-scenario009-multinode-oooq-container/ecfd391/logs/undercloud/var/log/extra/podman/containers/mistral_executor/stdout.log.txt.gz