ingress-nginx: Upgrade to 0.18.0

Upstream Changes:

-   ingress-nginx 0.18.0 (https://github.com/kubernetes/ingress-nginx/releases/tag/nginx-0.18.0)

fluentd daemonset: do not set old nodeSelector.

* Disable locksmithd on CoreOS if coreos_auto_upgrade set to false

* change when format to support multiple-condition

Local volume provisioner: tolerate NoSchedule

Define custom playbook in Vagrantfile

Netchecker manifests should not have j2 extension

Uninstall old versions of Docker

This change allows the playbook used in Vagrant to be
defined by the end user.

This is useful in the case where a developer may want to use
their own playbook that imports Kubespray, but also leverage
the Kubespray Vagrantfile.

Upgrade coredns to 1.1.3

Upgrade Kubernetes to V1.11.2
The kubeadm configuration file version has been upgraded from v1alpha1 to v1alpha2
Add bootstrap kubeadm-config.yaml with external etcd

Add the path to kubectl binary

The post-remove action fails during the kubectl delete node action because with rc: 2, command not found. The kubectl is not in the system PATH and the full path to the binary is required

* Update local-volume-provisioner-ds.yml.j2

After v1.10.2 default mountPropagation is "None"

* local_volume_provisioner version bump

v2.1.0 uses the beta nodeAffinity API by default which is available starting 1.10

* Update local-volume-provisioner-ds.yml.j2

MY_NAMESPACE env

* Update README.md

Raw block devices docs.

fix bad conditional

* kubedns & kubedns-autoscaler: Stick to master nodes.

 - Tolerate only master nodes and not any NoSchedule taint
 - Pods are on different nodes
 - Pods are required to be on a master node.

* kubedns: use soft nodeAffinity.

Prefer to be on a master node, don't require.

* coredns: Stick to (different) master nodes.

     - Pods are on different nodes
     - Pods are preferred to be on a master node.

cilium v1.1.2

weave: Upgrade to 2.4.0

Update all configs to current upstream state.
Add more resources (unable to pass tests now)...

Fix skip_downloads condition.

Merge pull request #2904 from mirwan/var_lib_kubelet_should_not_be_unmounted_when_having_its_own_partition

Only subdirectories in /var/lib/kubelet should be unmounted at reset time

Fixed checking skip_downloads condition.

Add support for admission controllers in 1.10 and above

Remove istio support

contrib/terraform/terraform.py: fix for Ansible 2.6.2+, issue #3067

Use helm install or support in future

Add tags for coredns and kubedns

Enable swap