allow '.' in hostnames for verify bad hostnames

we use FQDN as inventory_hostname

Add kubeadm controlplaneEndpoint

Audit log to stdout with kubeadm

Custom audit policy

Add --dns-loop-detect to dnsmasq used in kube-dns

Define apiserver flags directly instead of relying on auditPolicy section in order to have the ability to redirect audit log to stdout with kubeadm

Add bad hostname preflight check

cephfs-provisioner: Upgrade to v2.0.1-k8s1.11

Fix kubeadm client conf

Hostname must be a valid DNS name, which is checked as https://github.com/kubernetes/apimachinery/blob/master/pkg/util/validation/validation.go#L115

The situation I have encountered is that my hostname contained underscore which is disallowed and apiserver refused to start.

Nginx LB(default)
Other LB by kubeadm controlplane

Fix install nss

Fix pull dns image error

Remove unused configuration

Fix k8s-dns-dnsmasq-nanny repo path

Audit support improvement

Merge pull request #3105 from mirwan/remove_cilium_device_at_reset_plus_move_network_to_network_plugin_roles

Move network_plugin specific reset tasks to its role directory 

add ignore_patterns to ansible.cfg

cephfs-provisioner: Upgrade to v2.0.0-k8s1.11

add until option for etcd backup commands

add etcd version to etcd environment file to trigger a reload

SERIOUS Bug in download main.yml

add support for non-amd64 arch gcr.io images

Update docker package info for aarch64

Trigger reboot handler when version upgrade during update script

fix docker opts incompatible running on aarch64 Redhat/Centos

contrib/terraform/aws: Make path to generated inventory configurable