match kubespray-defaults dns mode with k8s-cluster setting

Add private dns server for a specific zone

Typo

Allow calico ipPool to be created with mode "cross-subnet"

Set kubedns minimum replicas to 2

Use the kube_apiserver_insecure_port variable instead of static 8080

Uncodron Masters which have scheduling Enabled

Better naming for recurrent tasks

added flag for not populating inventory entries to etc hosts file

clean files in reset roles

change documentation from "self hosted" to "static pod" for the contr…

add six package to bootstrap role

kubedns consistency fixes

Make etcd_backup_prefix configurable. 

docker_dns_servers_strict to control docker_dns_servers rtrim

Create ansible.md

Rename project to kubespray

changing username from "ubuntu" to the correct one "vagrant" for ubuntu

Sync folders on the vagrant machine

CI Fixes: turn off coreos updates

Make kubedns up to date

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

Fixing a condition that cause upgrade failure. 

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.