Added missing cephfs_provisioner_enabled to kubespray-defaults vars

Local volume provisioner fixes

Add cephfs_provisioner Support for Kubespray

baremetal tweaks

Always set net.bridge.bridge-nf-call-* sysctl

Disalbe install epel-release rpm on Centos/Redhat

kubernetes-apps: retry get default token name

 Support multiple inventory files under individual inventory directory

Fix symlinking vagrant inventory

Adding metrics-server support for K8s version 1.9

Make the Kubelet read-only port configurable and disable it by default

The default path assumes that the vagrant dir is called 'inventory'.
With custom defined inventory dirs that are not called 'inventory' this
fails to create the correct symlink under .vagrant.d.

local_volume_provisioner_enabled replacement

In some installation, it can take up to 3sec to get the value. Retrying
for 5 sec will ensure the command won't return 1.

Signed-off-by: Sébastien Han <seb@redhat.com>

etcd: ability to enable/disable ETCD_PEER_CLIENT_CERT_AUTH

Rename from aggregator-proxy-client to front-proxy-client to match kubeadm design. Added kubeadm support too. Changed to use variables set and not hardcode paths. Still missing cert generation for Vault

1.Disalbe install epel-release rpm on Centos/Redhat
2.Use yum install epel-release

Several enhancements and bug fixes

Split contiv etcd and etcd-proxy into two daemonsets

* allow installs to not have hostname overriden with fqdn from inventory
* calico-config no longer requires local as and will default to global
* when cloudprovider is not defined, use the inventory_hostname for cni-calico
* allow reset to not restart network (buggy nodes die with this cmd)
* default kube_override_hostname to inventory_hostname instead of ansible_hostname

The "centos/7" box is the official centos box and supports all the major
providers:

virtualbox Externally hosted (cloud.centos.org)
vmware_desktop Externally hosted (cloud.centos.org)
libvirt Externally hosted (cloud.centos.org)
hyperv Externally hosted (cloud.centos.org)

Where  bento/centos-7.3 only supports:

parallels Hosted by Vagrant Cloud (570 MB)
virtualbox Hosted by Vagrant Cloud (525 MB)
vmware_desktop Hosted by Vagrant Cloud (608 MB)

Signed-off-by: Sébastien Han <seb@redhat.com>

Signed-off-by: Sébastien Han <seb@redhat.com>

When testing deployments of SDS, it is quite useful to get a Kubernetes
env with nodes having dedicated drives.
You can now enable this by setting: kube_node_instances_with_disks: true

Also you can chose the amount of drives per machine and their respective
size:

* kube_node_instances_with_disks_number: 10
* kube_node_instances_with_disks_size: "20G"

Signed-off-by: Sébastien Han <seb@redhat.com>

Signed-off-by: Sébastien Han <seb@redhat.com>