failed: [infra3] (item={u'service': {u'haproxy_backend_nodes': u"[ 'infra2_ceph-mon_container-3c83f7fb' ]", u'haproxy_service_name': u'ceph-mgr', u'haproxy_balance_type': u'http', u'haproxy_ssl': True, u'haproxy_port': 6800}}) => {"failed": true, "item": {"service": {"haproxy_backend_nodes": "[ 'infra2_ceph-mon_container-3c83f7fb' ]", "haproxy_balance_type": "http", "haproxy_port": 6800, "haproxy_service_name": "ceph-mgr", "haproxy_ssl": true}}, "msg": "AnsibleUndefinedVariable: 'ansible.vars.hostvars.HostVars object' has no attribute u'['"}