Downgrade coredns to 1.6.5 due to upgrade errors while migrating coredns configmap (Corefile) (#5960)

* Add CI_TEST_VARS to tests

* Update flannel to 0.12.0 (with new manifests) and disable tx/rx
offloading in networking test

* added required permissions for querying endpointslice resources

* copy-pasted role permissions from cilium install manifests

* bumped cilium version to v1.7.2

https://github.com/kubernetes/kubernetes/issues/90043

Update Calico to v3.13.2, Multus to v3.4.1. Add ConfigMap get permission to allow calico-node access to kubeadm config. (#5912)

* Add checksums for v1.18.0

* Add crictl version for k8s 1.18

* Azure Disk CSI deployment

* Mention Azure CSI support

* Fix: remove unnecessary file

* Typo in documentation

* Add newline to end of file

* GCP Persistent Disk CSI Driver deployment

* Fix MD lint

* Fix Yaml lint

* Upgrade to Kubernetes 1.17.4 - change defaults

* Update ci jobs to previous k8s release (will fix them afterward)

* AWS EBS CSI implementation

* Fixing image repos

* Add OWNERS file

* Fix expressions

* Add csi-driver tag

* Add AWS EBS prefix to variables

* Add AWS EBS CSI Driver documentation

- This solves issue #5721 & #5713 (dupes)
  - Provide a cleaner default usage pattern for the download role
    around etcd that supports 'host' and 'docker' properly
  - Extract the 'etcdctl' as a separate task install piece and reuse it where
    appropriate
  - Update the kubeadm-etcd task to reflect the above change

k8s-dns-node-cache now uses debian-iptables base images
to automatically use either iptables-legacy or iptables-nft
https://github.com/kubernetes/dns/pull/355
https://github.com/kubernetes/kubernetes/pull/82966



This adds support CentOS 8

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Fix check if user can use docker without sudo.

* Add AWS ALB Ingress Controller Ansible role

* remove trailing spaces

* update owners

* ALB ingress: update rbac clusterrole and remove role

* Move alb-ingress role to roles/kubernetes-apps/ingress_controller folder

* Use k8s.gcr.io for kubernetes related images

* Use k8s.gcr.io in inventory sample

* Kubernetes 1.16.8

* Use 1.16.8 in sample inventory and kubespray-defaults

* upgrade metrics server and resizer images version

* scope "apps" api group for addon resizer

Signed-off-by: Chris Randles <randles.chris@gmail.com>

* Upgrade etcd to 3.3.18

* Try with etcd 3.3.15 (kubeadm 1.16.7 default)

* Back to square one

* Try with 3.3.11

* Upgrade etcd to 3.3.18 (take 2)

* Try with 3.3.12