MongoDB Connection refused on overcloud/controllers with ipv6

[Emilien Macchi]

We have an error in Puppet catalog when deploying overcloud controllers with ipv6.

http://logs.openstack.org/35/289435/5/check-tripleo/gate-tripleo-ci-f22-ha/372d303/console.html#_2016-03-22_04_10_23_649

exception: connect failed\nCould not retrieve fact='mongodb_is_master', resolution='<anonymous>': 757: unexpected token at '2016-03-22T04:04:01.141+0000 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused\n2016-03-22T04:04:01.142+0000 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146'\nexception: connect failed\nCould not retrieve fact='mongodb_is_master', resolution='<anonymous>': 757: unexpected token at '2016-03-22T04:04:01.340+0000 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused\n2016-03-22T04:04:01.342+0000 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146'\n\u001b[1;31mWarning: Scope(Class[Mongodb::Server]): Replset specified, but no replset_members or replset_config provided.