* Enable weave seed mode for kubespray

* fix task Weave seed | Set peers if existing peers

* fix mac address variabilisation

* fix default values

* fix include seed condition

* change weave var to default values

* fix Set peers if existing peers

to match this https://github.com/kubernetes-incubator/kubespray/blob/master/roles/kubernetes/node/tasks/main.yml#L20
and the documented behaviour in HA docs 
related to #1456
@rsmitty

Fixes #1434

Updated with closing endif.

Updated!

Updated!!

Signed-off-by: Amit Kumar Jaiswal <amitkumarj441@gmail.com>

Update kube-dns version to 1.14.2
https://github.com/kubernetes/kubernetes/pull/45684

Make etcd_backup_prefix configurable. Ensures that backups can be stored on a different location other than ${HOST}/var/backups, say an EBS volume on AWS.

In the etcd container, the etcd data directory is always /var/lib/etcd. Reverting to this value, since `etcd_data_dir` on the host maps to `/var/lib/etcd` in the container.

Fixes #1334