* update version of ingress-nginx controller.

Change tag from controller-v0.34.0 to controller-v0.40.2 to use newest tag.

* Update docs about aws deploy templates.

In the yaml templates, there is no mention of idle timeouts. This is why I removed the documentation about it. This might be a mistake. Please verify this. I don't know enough to verify it myself.

* Change label when checking version.

When checking for `app.kubernetes.io/name=ingress-nginx`, a completed pod was selected which is not helpful when trying to `exec`. Changing the label selects the running controller pod.

* put back the information about ELB Idle Timeouts.

When I removed the information, I had overlooked that it was mentioned in the L7 yaml file. Thanks.

In case multiple nodeselectors are specified in ingress_nginx_nodeselector, the generated daemonset yaml template for nginx is invalid due to missing indentation starting with the second nodeselector

* Update cert manager to 0.16.1

* Update cert manager to 0.16.1

Co-authored-by: Barry Melbourne <9964974+bmelbourne@users.noreply.github.com>

* Upgrade JetStack Cert-Manager to v0.15.2

* Add README.md table of contents

Support for Ambassador OSS as an Ingress Controller when
settings `ingress_ambassador_enabled: true`.

Signed-off-by: Alvaro Saurin <alvaro.saurin@gmail.com>

Signed-off-by: Wang Zhen <lazybetrayer@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

Cleaned up deprecated APIs:
apps/v1beta1
apps/v1beta2
extensions/v1beta1 for ds,deploy,rs

Add workaround for deploying helm using incompatible
deployment manifest.
Change-Id: I78b36741348f47a999df3841ee63cf4e6f377830

* remove svc-default-backend

* update ingress-nginx clusterrole

Close #4113

* Fix nodeselectors for contiv and nginx-ingress

Change-Id: Ib3eb6bd87193c69a90ee944c9164a0b6792c79ba

* Set kube proxy mode to iptables for addons task

Change-Id: Iff71a71f672405c74b4708c71db15ddc4391a53a

We don't need to support upgrades from 2 year old installs,
just from the last major version.

Also changed most retried tasks to 1s delay instead of longer.

* Fix merge conflict

* Add check delay

* Add more liveness and readiness options to metrics-server

This reverts commit f8fdc0cd.

Revert "Fix for unknown 'kubernetes.io' or 'k8s.io' labels specified with --node-labels (#4320)" (#4553)

This reverts commit 586ad89d.