Description of problem:

Overcloud deployment with composable roles fails with Initializing overcloud plan deployment '>' not supported between instances of 'str' and 'int'

/var/log/containers/mistral/executor.log:

2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images [req-28e3f868-8595-4bef-96d3-8e453c1e15d1 00a9a3ac3ac34f5da5cc75fc6723e6ae c37c1c5cde444df0935c8a17a1eae610 - default default] Error occurred while processing plan files.: TypeError: '>' not supported between instances of 'str' and 'int'
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images Traceback (most recent call last):
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images   File "/usr/lib/python3.6/site-packages/tripleo_common/actions/container_images.py", line 141, in run
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images     env, role_data, dry_run=True)
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images   File "/usr/lib/python3.6/site-packages/tripleo_common/image/kolla_builder.py", line 156, in container_images_prepare_multi
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images     service_filter = build_service_filter(environment, roles_data)
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images   File "/usr/lib/python3.6/site-packages/tripleo_common/image/kolla_builder.py", line 90, in build_service_filter
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images     enabled_services = get_enabled_services(environment, roles_data)
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images   File "/usr/lib/python3.6/site-packages/tripleo_common/image/kolla_builder.py", line 74, in get_enabled_services
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images     if count > 0:
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images TypeError: '>' not supported between instances of 'str' and 'int'
2019-05-02 04:58:01.962 9 ERROR tripleo_common.actions.container_images 


Version-Release number of selected component (if applicable):
python3-tripleo-common-10.7.1-0.20190423083511.2199eeb.el8ost.noarch
openstack-tripleo-common-10.7.1-0.20190423083511.2199eeb.el8ost.noarch
openstack-tripleo-common-containers-10.7.1-0.20190423083511.2199eeb.el8ost.noarc

How reproducible:
100%

Steps to Reproduce:
1. Deploy overcloud with ControllerOpenstack Database Messaging Networker CephStorage and Compute roles

openstack overcloud deploy \
  --timeout 100 \
  --templates /usr/share/openstack-tripleo-heat-templates \
  --libvirt-type kvm \
  --stack overcloud \
  -r /home/stack/composable_roles/roles/roles_data.yaml \
  -e /home/stack/composable_roles/roles/nodes.yaml \
-e /home/stack/composable_roles/internal.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml \
-e /home/stack/composable_roles/network/network-environment.yaml \
-e /home/stack/composable_roles/network/dvr-override.yaml \
-e /home/stack/composable_roles/enable-tls.yaml \
-e /home/stack/composable_roles/inject-trust-anchor.yaml \
-e /home/stack/composable_roles/public_vip.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/ssl/tls-endpoints-public-ip.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/ceph-ansible/ceph-ansible.yaml \
-e /home/stack/composable_roles/hostnames.yaml \
-e /home/stack/composable_roles/debug.yaml \
-e /home/stack/composable_roles/config_heat.yaml \
-e ~/containers-prepare-parameter.yaml \


Actual results:
Deployment fails 

Exception occured while running the command
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/tripleoclient/command.py", line 30, in run
    super(Command, self).run(parsed_args)
  File "/usr/lib/python3.6/site-packages/osc_lib/command/command.py", line 41, in run
    return super(Command, self).run(parsed_args)
  File "/usr/lib/python3.6/site-packages/cliff/command.py", line 184, in run
    return_code = self.take_action(parsed_args) or 0
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_deploy.py", line 919, in take_action
    self._deploy_tripleo_heat_templates_tmpdir(stack, parsed_args)
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_deploy.py", line 374, in _deploy_tripleo_heat_templates_tmpdir
    new_tht_root, tht_root)
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_deploy.py", line 477, in _deploy_tripleo_heat_templates
    deployment_options=deployment_options)
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_deploy.py", line 494, in _try_overcloud_deploy_with_compat_yaml
    deployment_options=deployment_options)
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/overcloud_deploy.py", line 247, in _heat_deploy
    deployment_options=deployment_options)
  File "/usr/lib/python3.6/site-packages/tripleoclient/workflows/deployment.py", line 81, in deploy_and_wait
    deploy(log, clients, **workflow_input)
  File "/usr/lib/python3.6/site-packages/tripleoclient/workflows/deployment.py", line 63, in deploy
    % (payload['status'], wf_name))
ValueError: Unexpected status FAILED for tripleo.deployment.v1.deploy_plan
Unexpected status FAILED for tripleo.deployment.v1.deploy_plan
Removing the current plan files
Uploading new plan files
Plan updated.
Processing templates in the directory /tmp/tripleoclient-hiea77gh/tripleo-heat-templates
WARNING: Following parameter(s) are defined but not used in plan. Could be possible that parameter is valid but currently not used.
  CinderBackupBackend
  NeutronTunnelTypes
Deploying templates in the directory /tmp/tripleoclient-hiea77gh/tripleo-heat-templates
Initializing overcloud plan deployment
'>' not supported between instances of 'str' and 'int'


Expected results:
No failures

Additional info:
Attaching templates and logs