Ensure all Kubelet required kernel values are configured when enabling protectKernelDefaults (#8692)

Signed-off-by: Cyril Corbon <corboncyril@gmail.com>

* feat: split kube_feature_gates variable for different kubernetes components

* docs: add kube_feaute_gates componet variables

Signed-off-by: Cyril Corbon <corboncyril@gmail.com>

* [containerd] add hashes for 1.5.11

* [containerd] add hashes for 1.6.2

* [containerd] make 1.6.2 the new default

Due to missing quotation of nerdctl_extra_flags, ansible-playbook was failed:

  Using module file /usr/local/lib/python3.6/dist-packages/ansible/modules/command.py
  Pipelining is enabled.
    [..]
    File "/usr/lib/python3.8/shlex.py", line 191, in read_token
      raise ValueError("No closing quotation")

This fixes the issue.

T-Eberle investigated the issue and found the solution.
Thank you T-Eberle!

To read it easily, this puts new lines.

* [ansible] make ansible 5.x the new default version and move different versions tested to nightly jobs

* [CI] jobs were missing proper ansible cleanup

If running Kubespray on static IP environments, a task was failed like:

  TASK [kubernetes/preinstall : Configure dhclient hooks for resolv.conf (RH-only)]
  fatal: [ak8s2]: FAILED! => {
    "changed": false, "checksum": "..",
    "msg": "Destination directory /etc/dhcp/dhclient.d does not exist"}

This adds a check for dhclientconffile for running 0100-dhclient-hooks to
run the task only if dhcpclient is enabled.

terrform/openstack: Fix templating of ansible_ssh_common_args in no_floating.yml if used as TF module (#8646)

* terraform/openstack: Use path.module for ansible_bastion_template.txt

This extends on #7643 by not using path.root, but switching to path.module
to allow use of the terraform code as a module itself. This change then keeps
all calls to the template file stable even for that use-case.

* terraform/openstack: Make sed calls fail on errors

By using a single call with two replacements to use of sed will create proper exit codes
and allowing for errors to be recognized by terraform.

Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>

When running cluster.yml for new machines what containerd is already
install but Kubernetes cluster were not installed before, the task
"remove-node | List nodes" is failed like

  "changed": false,
  "cmd": [
    "/usr/local/bin/kubectl", "--kubeconfig",
    "/etc/kubernetes/admin.conf", "get", "nodes", "-o",
    "go-template={{ range .items }}{{ .metadata.name }}
    {{ "\n" }}{{ end }}"
   ],
   ..
   "stderr": "error: stat /etc/kubernetes/admin.conf: no such file or directory",

That was due to lack to check the existing Kubernetes cluster exists
or not before running "kubectl drain" command.
This adds the check to avoid the issue.

* Updated openstack cloud controller version to match kubernetes version

* Rolled back file structure change

* [calico] make vxlan encapsulation the default

* don't enable ipip encapsulation by default
* set calico_network_backend by default to vxlan
* update sample inventory and documentation

* [CI] pin default calico parameters for upgrade tests to ensure proper upgrade

* [CI] improve netchecker connectivity testing

* [CI] show logs for tests

* [calico] tweak task name

* [CI] Don't run the provisioner from vagrant since we run it in testcases_run.sh

* [CI] move kube-router tests to vagrant to avoid network connectivity issues during netchecker check

* service proxy mode still fails connectivity tests so keeping it manual mode

* [kube-router] account for containerd use-case