* Add possibility to insert more ip adresses in certificates

* Add newline at end of files

* Move supp ip parameters to k8s-cluster group file

* Add supplementary addresses in kubeadm master role

* Improve openssl indexes

* Disable basic and token auth by default

* Add recommended security params

* allow basic auth to fail in tests

* Enable TLS authentication for kubelet

* add istio addon

* add addons to a ci job

This role only support Red Hat type distros and is not maintained
or used by many users. It should be removed because it creates
feature disparity between supported OSes and is not maintained.

* Rename dns_server to dnsmasq_dns_server so that it includes role prefix
as the var name is generic and conflicts when integrating with existing ansible automation.
*  Enable selinux state to be configurable with new var preinstall_selinux_state

* Set no_proxy to all local ips

* Use proxy settings on all necessary tasks

* Upgrade to kubernetes v1.8.0

hyperkube no longer contains rsync, so now use cp

* Enable node authorization mode

* change kube-proxy cert group name

Also fix yaml lint issues

Fixes #1703

New files: /etc/kubernetes/admin.conf
           /root/.kube/config
           $GITDIR/artifacts/{kubectl,admin.conf}

Optional method to download kubectl and admin.conf if
kubeconfig_lcoalhost is set to true (default false)

- Enable Cinder API version for block storage
- Enable floating IP for LBaaS

* kubeadm support

* move k8s master to a subtask
* disable k8s secrets when using kubeadm
* fix etcd cert serial var
* move simple auth users to master role
* make a kubeadm-specific env file for kubelet
* add non-ha CI job

* change ci boolean vars to json format

* fixup

* Update create-gce.yml

* Update create-gce.yml

* Update create-gce.yml

* Add kube dashboard, enabled by default

Also add rbac role for kube user

* Update main.yml

* Clean up debug in check apiserver test

* Change password generation for kube_user

Special characters are not allowed in known_users.csv file

Removed unnecessary root user

Change kubelet deploy mode to host
Enable cri and qos per cgroup for kubelet
Update CoreOS images
Add upgrade hook for switching from kubelet deployment from docker to host.
Bump machine type for ubuntu-rkt-sep

Closes #1228
pods is default enforcement

see https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/
add

update

* 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

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.