+ disabled: 'true'
+ engine-branch: 'master'
+ openstack-branch: '{stream}'
+ - 'train':
+ disabled: 'true'
+ engine-branch: 'master'
+ openstack-branch: '{stream}'
+ - 'stein':
+ disabled: 'true'
+ engine-branch: 'master'
+ openstack-branch: '{stream}'
+ - 'rocky':
+ disabled: 'true'
+ engine-branch: 'master'
+ openstack-branch: '{stream}'