openshift:unable to provision multi interface setup

[Venkatesh Velpula]

provisioning of openshift setup fails for multi interface though we specify contrail_control_data_interface .. while running the cluster deployer we hit the error shown below

deployer :openshift_deployer 3.9
ansible :2.5.2
docker :1.13.1
HostOs : CentOS
build :5.1.395

     Message: The conditional check 'contrail_masters.split() | length < 1' failed. The error was: error while evaluating conditional (contrail_masters.split() | length < 1): 'list object' has no attribute 'split'

               The error appears to have been in '/root/openshift-ansible/roles/contrail_common/tasks/determine_contrail_masters.yaml': line 22, column 3, but may
               be elsewhere in the file depending on the exact syntax problem.

               The offending line appears to be:

               - name: Set contrail_masters from masters group if not set before
                 ^ here

ose-install
============
[root@nodeg12 openshift-ansible]# cat inventory/ose-install
[OSEv3:children]
masters
nodes
etcd
openshift_ca

[OSEv3:vars]
ansible_ssh_user=root
ansible_become=yes
debug_level=2
deployment_type=origin
openshift_release=v3.9
#openshift_repos_enable_testing=true
containerized=false
openshift_install_examples=true
openshift_master_identity_providers=[{'name': 'htpasswd_auth', 'login': 'true', 'challenge': 'true', 'kind': 'HTPasswdPasswordIdentityProvider', 'filename': '/etc/origin/master/htpasswd'}]
osm_cluster_network_cidr=10.32.0.0/12
openshift_portal_net=10.96.0.0/12
openshift_use_dnsmasq=true
openshift_clock_enabled=true
openshift_hosted_manage_registry=false
openshift_hosted_manage_router=false
openshift_enable_service_catalog=false
openshift_use_openshift_sdn=false
os_sdn_network_plugin_name='cni'
openshift_disable_check=memory_availability,package_availability,disk_availability,package_version,docker_storage
openshift_docker_insecure_registries=10.204.217.152:5000
openshift_web_console_install=false
openshift_web_console_nodeselector={'region':'infra'}

openshift_web_console_contrail_install=true
openshift_use_contrail=true
nested_mode_contrail=false
contrail_version=5.0
contrail_container_tag=queens-master-395
contrail_registry=10.204.217.152:5000
# Username /Password for private Docker regiteries
#contrail_registry_username=test
#contrail_registry_password=test
# Below option presides over contrail masters if set
#vrouter_physical_interface=ens160
#docker_version=1.13.1
ntpserver=10.204.217.158
contrail_control_data_interface=[ '77.77.1.30' ]

# Contrail_vars
# below variables are used by contrail kubemanager to configure the cluster,
# you can configure all options below. All values are defaults and can be modified.

#kubernetes_api_server=10.84.13.52 # in our case this is the master, which is default
#kubernetes_api_port=8080
#kubernetes_api_secure_port=8443
#cluster_name=myk8s
#cluster_project={}
#cluster_network={}
#pod_subnets=10.32.0.0/12
#ip_fabric_subnets=10.64.0.0/12
#service_subnets=10.96.0.0/12
#ip_fabric_forwarding=false
#ip_fabric_snat=false
#public_fip_pool={}
#vnc_endpoint_ip=20.1.1.1
#vnc_endpoint_port=8082

[masters]
10.204.217.71 openshift_hostname=nodeg31

[etcd]
10.204.217.71 openshift_hostname=nodeg31

[nodes]
10.204.217.71 openshift_hostname=nodeg31
10.204.217.100 openshift_hostname=nodec60
10.204.217.101 openshift_hostname=nodec61
10.204.217.98 openshift_hostname=nodec58 openshift_node_labels="{'region': 'infra'}"

[openshift_ca]
10.204.217.71 openshift_hostname=nodeg31

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/47969
Submitter: Pragash Vijayaragavan (<email address hidden>)