Comment 20 for bug 1760217

Following are the error logs:

Following are the failures logs:
fatal: [77.77.1.20]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: list object has no element 0\n\nThe error appears to have been in '/root/contrail-ansible-deployer/playbooks/roles/install_contrail/tasks/set_master.yml': line 13, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: set master\n ^ here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: list object has no element 0"}
fatal: [77.77.1.21]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: list object has no element 0\n\nThe error appears to have been in '/root/contrail-ansible-deployer/playbooks/roles/install_contrail/tasks/set_master.yml': line 13, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: set master\n ^ here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: list object has no element 0"}
fatal: [77.77.1.31]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: list object has no element 0\n\nThe error appears to have been in '/root/contrail-ansible-deployer/playbooks/roles/install_contrail/tasks/set_master.yml': line 13, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: set master\n ^ here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: list object has no element 0"}