* Sample-Inventory: add sample for calico_bpf_enabled

* Calico-Doc: note about CONFIG_NET_SCHED for eBPF support

* CI: Add Calico eBPF in HA mode test

Kubespray deployment failed when using containerd backend on nodes that apparmor was not installed or previously removed. This PR ensure apparmor is installed by adding it into required_pkgs var.

When not specifying disable_service_firewall, the task is failed.
This adds the definition check.

This reverts commit c0e1211a.

The path of kubeconfig should be configurable, and its default value
is /etc/kubernetes/admin.conf. Most paths of the file are configurable
but some were not. This make those configurable.

The typha prometheus settings were in the `volumeMounts` section of the
spec and not in the `envs` section. This was cauing the deployment to
fail because it was looking for a volumeMount.

```
failed: [controller-001.a2.da.dev.logdna.net] (item=calico-typha.yml) => {"ansible_loop_var": "item", "changed": false, "item": {"ansible_loop_var": "item", "changed": true, "checksum": "598ac79530749e8e2110793b53fc49ac208e7130", "dest": "/etc/kubernetes/calico-typha.yml", "diff": [], "failed": false, "gid": 0, "group": "root", "invocation": {"module_args": {"_original_basename": "calico-typha.yml.j2", "attributes": null, "backup": false, "checksum": "598ac79530749e8e2110793b53fc49ac208e7130", "content": null, "delimiter": null, "dest": "/etc/kubernetes/calico-typha.yml", "directory_mode": null, "follow": false, "force": true, "group": null, "local_follow": null, "mode": null, "owner": null, "regexp": null, "remote_src": null, "selevel": null, "serole": null, "setype": null, "seuser": null, "src": "/home/core/.ansible/tmp/ansible-tmp-1632349768.56-75434-32452975679246/source", "unsafe_writes": null, "validate": null}}, "item": {"file": "calico-typha.yml", "name": "calico", "type": "typha"}, "md5sum": "53c00ac7f562cf9ecbbfd27899ea066d", "mode": "0644", "owner": "root", "size": 5378, "src": "/home/core/.ansible/tmp/ansible-tmp-1632349768.56-75434-32452975679246/source", "state": "file", "uid": 0}, "msg": "error running kubectl (/opt/bin/kubectl --namespace=kube-system apply --force --filename=/etc/kubernetes/calico-typha.yml) command (rc=1), out='service/calico-typha unchanged\n', err='error: error validating \"/etc/kubernetes/calico-typha.yml\": error validating data: [ValidationError(Deployment.spec.template.spec.containers[0].volumeMounts[2]): unknown field \"value\" in io.k8s.api.core.v1.VolumeMount, ValidationError(Deployment.spec.template.spec.containers[0].volumeMounts[2]): missing required field \"mountPath\" in io.k8s.api.core.v1.VolumeMount, ValidationError(Deployment.spec.template.spec.containers[0].volumeMounts[3]): unknown field \"value\" in io.k8s.api.core.v1.VolumeMount, ValidationError(Deployment.spec.template.spec.containers[0].volumeMounts[3]): missing required field \"mountPath\" in io.k8s.api.core.v1.VolumeMount]; if you choose to ignore these errors, turn validation off with --validate=false\n'"}
```

* etcd: enable v2 api only if needed

Only enable v2 API if we have a consumer (flannel)
This reduce the exposed surface for etcd.

* Fix bad group name

and kubelet_shutdown_grace_period_critical_pods as ansible cannot do
sane time interval calculations

Signed-off-by: Wang Zhen <lazybetrayer@gmail.com>

* make Calico 3.20.1 the default version
* drop Calico 3.17.x support

* Calico: make calico_min_version check relevant

* Calico: only check currently installed version against the oldest supported version by the previous release

Add option to kubeadm upgrade command to control certificates renewal during control plane upgrade (#7976)

* Add option to kubeadm upgrade command to control certificates renewal during control plane upgrade

* Remove training whitespace

Modify connection_strings_etcd to only return etcd nodes - not master nodes - since this results in duplicate hosts in the generated Ansible inventory and is unnecessary.

On Debian 11, `ipset` just recommend `iptables` so on the system that apt is configured with `APT::Install-Recommends "0";` iptables will not install automatically.

additional disks

* Fix: adding new ips with inventory builder (#7577)

* moved conflig loading logic
to after checking whether the config
should be loaded, and added check for
whether the config should be loaded

* added check for removing nodes from config
if the user wants to remove a node, we
need to load the config

* Fix tox errors

* Fix missing file mode (risky-file-permissions)

Found this using ansible-lint.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

* Fix another missing file mode (risky-file-permissions)

This one fixes `/etc/crio/config.json`

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

* Fix invalid condition for username and password inclusion

* Use length filter to test variable conditions