[WIP] Support pbr builds and prepare for RPM packaging as the ansible-kubespray artifact

* Fix Typo etc3 -> etcd3

* Fix typo in post-upgrade of master. stop -> start

* Added custom ips to etcd vault distributed certificates

* Added custom ips to kube-master vault distributed certificates

* Added comment about issue_cert_copy_ca var in vault/issue_cert role file

* Generate kube-proxy, controller-manager and scheduler certificates by vault

* Revert "Disable vault from CI (#1546)"

This reverts commit 781f31d2.

* Fixed upgrade cluster with vault cert manager

* Remove vault dir in reset playbook

add possibility to ignore the hostname override

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

https://github.com/kubernetes-incubator/kubespray/issues/1545

* Bump tag for upgrade CI, fix netchecker upgrade

netchecker-server was changed from pod to deployment, so
we need an upgrade hook for it.

CI now uses v2.1.1 as a basis for upgrade.

* Fix upgrades for certs from non-rbac to rbac

This aligns calico component versions with Calico release 2.1.5 and
fixes an issue with nodes being unable to schedule existing workloads
as per [#349](https://github.com/projectcalico/cni-plugin/issues/349)

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

This does not address per-node certs and scheduler/proxy/controller-manager
component certs which are now required. This should be handled in a
follow-up patch.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Required for an RPM package builds with the contrib/ansible-kubespray.spec

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Install roles under /usr/local/share/kubespray/roles,
playbooks - /usr/local/share/kubespray/playbooks/,
ansible.cfg and inventory group vars - into /etc/kubespray.
Ship README and an example inventory as the package docs.
Update the ansible.cfg to consume the roles from the given path,
including virtualenvs prefix, if defined.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

Update Community Code of Conduct from kubernetes/kubernetes-template-project

Minor grammar fixes

Update azure contrib to use azure cli 2.0

Apply RBAC to efk and create fluentd.conf

Making fluentd.conf as configmap to change configuration.
Change elasticsearch rc to deployment.
Having installed previous elastaicsearch as rc, first should delete that.

Add logging options to default docker options

Add more variables for more clarity

added Weave documentation

fixed typo in fluentd-ds.yml.j2

Add to network plugins documentation - README.md

basic rbac support

Update flannel from 0.6.2 to 0.8.0