Add reload yes to reload sysctl if the value of net.ipv4.ip_forward changes.

- name: Enable ip forwarding
  sysctl:
    sysctl_file: "{{sysctl_file_path}}"
    name: net.ipv4.ip_forward
    value: 1
    state: present
    reload: yes
  tags:
    - bootstrap-os

* Update main.yml

Needs to set up resolv.conf before updating Yum cache otherwise no name resolution available (resolv.conf empty).

* Update main.yml

Removing trailing spaces

* don't try to install this rpm on fedora atomic

* add docker 1.13.1 for fedora

* built-in docker unit file is sufficient, as tested on both fedora and centos atomic

* 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

These facts can be generated in defaults with a performance
boost.

Also cleaned up duplicate etcd var names.

Fixes #1716

Also fix yaml lint issues

Fixes #1703

This is to help support escapes and special characters

- 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

* Adding yaml linter to ci check

* Minor linting fixes from yamllint

* Changing CI to install python pkgs from requirements.txt

- adding in a secondary requirements.txt for tests
- moving yamllint to tests requirements

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

- Fix when clauses in various places
- Update requirements.txt
- Fix README.md

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>

When VPC is used, external DNS might not be available. This patch change
behavior to use metadata service instead of external DNS when
upstream_dns_servers is not specified.

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>

kubernetesUnitPrefix was changed to k8s_* in 1.5. This patch reflects
this change in kargo

Until now it was not possible to add an API Loadbalancer
without an static IP Address. But certain Loadbalancers
like AWS Elastic Loadbalanacer dontt have an fixed IP address.
With this commit it is possible to add these kind of Loadbalancers
to the Kargo deployment.