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>

* 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

* Add resources needed to deploy 1.6.4

* Use cilium v1.6.4

* Change deprecated option name

* Add update crd to clusterrole cilium

* Cilium 1.6.4 -> 1.6.5

* Make monitor-aggregation config configurable as a variable

* Change monitor-aggregation default none->medium

* Cilium 1.6.5 -> 1.6.6

* Update to 1.7.0

* v1.7.0->v1.7.1

* download file

* download containers

* fix push image to nodes

* pull if none image on host

* fix

* improve docker image tag checks.
do not pull already cached images

* rebase fix merge conflict

* add support download_run_once when upgrade and scale cluster
add some test with download_run_once

* set default values to temp flag for every download cycle

* add save,load abilty for containerd and crio when download_run_once=true

* return redefine image save/load command to  set_docker_image_facts.yml

* move set command to set_container_facts

* ctr in containerd_bin_dir

* fix order of ctr image export arguments

* temporary disable download_run_once for containerd and crio
due https://github.com/containerd/containerd/issues/4075

* remove unused files

* fix strict yaml linter warning and errors

* refactor logical conditions to pull and cache container images

* remove comment due lint check

* document role

* remove image_load_on_localhost, because cached images are always loaded to docker on remote sites

* remove XXX from debug output

* helm default version 3.1.0

* fix newline
try to retest2

Add Cinder images to download role

* set helm 3.0 as default

* remove trainling space in vars.yml

* switched to helm 3.0.3

Change-Id: I7354d33c7db513e0ee27c9a4cc40e8501c0e1061

I've tested this update by deploying a containerd / etcd cluster on top CentOS7,
MetalLB + NGINX Ingress. Upgrade using upgrade-cluster.yml

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

* Bump nodelocaldns version

* Add missing upstreamsvc

* Add Helm 3.x support

* tiller enabled when helm < 3.0.0

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

Change-Id: I3fff04f0211cd9c2e8235acaf51c3aa98abc8bb7

Since upgrading k8s beyond 1.16.0 version, helm init does
no longer work with helm < 2.16.0 due to
https://github.com/helm/helm/issues/6374

This PR closes issue #5331

| Kubernetes Version | cri-tools Version |
|--------------------|-------------------|
| 1.16.x             | v1.16.0           |
| 1.15.X             | v1.15.0           |
| 1.14.X             | v1.14.0           |
| 1.13.X             | v1.13.0           |
| 1.12.X             | v1.12.0           |
| 1.11.X             | v1.11.1           |

- Upgrade to cri-tools 1.16.1
- Add checksums for cri-tools 1.16.1

* Generate TLS certs for calico typha

Change-Id: I3883f49c124c52d0fc5b900ca2b44e4e2ed0d707

* Add group vars note

Change-Id: I63550dfef616e884efdbd42010a90b2c04c5eb69

* Add support for Kubernetes 1.16.1

* Defaults to 1.16.1

* add 1.16.2 checksums and set new version as default

* correct 1.16.2 checksums and add 1.15.5 checksums