* [etcd] make etcd 3.5.16 default

* Update etcd binary checksums for version 3.5.16 and lower

The old repository for these has been deleted, leaving the previous
configuration not possible to deploy, and even currently running clusters
fail after a restart as the DeameonSet has ImagePullPolicy: Always. More
details can be found here: kubernetes-sigs/vsphere-csi-driver#3053

As of writing, only CSI driver versions 3.1.2 to 3.3.1 is available in
this registry. This "officially" supports Kubernetes 1.26 to 1.30. Since
older drivers are not available, I have removed some feature-gating for
those unavailable versions while I was at it. For the cloud provider,
the `latest` image is now missing, and only 1.28.0 to 1.31.0 are
available. I've set the latest of these as the new default.

I also updated the documented default versions, as they were all out of
date and not aligned with actual code defaults.

Nodes to api-server relies by default certificates, and bootstrap
tokens, and there should be no need to generate tokens for every nodes,
even when enabling static token auth.

Testing for group membership with group names makes Kubespray more
tolerant towards the structure of the inventory.
Where 'inventory_hostname in groups["some_group"] would fail if
"some_group" is not defined, '"some_group" in group_names' would not.

The `--container-runtime-endpoint` kubelet argument is deprecated in
favor of the config file alternative.

- Execute boostrap-os before so that Python is installed for kubespray-defaults
- Remove outdated kubespray-defaults dependency on boostrap-os

Specifying one directory for kubeadm patches is not ideal:
1. It does not allow working with multiples inventories easily
2. No ansible templating of the patch
3. Ansible path searching can sometimes be confusing

Instead, provide the patch directly in a variable, and add some quality
of life to handle components targeting and patch ordering more
explicitly (`target` and `type` which are translated to the kubeadm
scheme which is based on the file name)

kubernetes/control-plane and kubernetes/kubeadm roles both push kubeadm
patches in the same way.
Extract that code and make it a dependency of both.
This is safe because it's only configuration for kubeadm, which only
takes effect when kubeadm is run.

* Update multus to v4.1.0 and clarify cilium compatibility

* Fix: bug introduced by #10934 where the template would break if multus was defined

* Set priorityClassName to system-node-critical for multus pods

There is no need to have an extra variables for this, just use different
values per host (using Ansible group_vars, for example)

Remove system|kube_master_<resource>_reserved variables.
Those variables are unnecessary because users can simply use the
variables in group_vars if they which to differentiate control plane
nodes from other nodes.

Set conservative defaults for ephemeral-storage and pids for both kube
and system reserved resources.

The default value is used across kubespray but only defined in
kubernetes/node.
Move it to kubespray-defaults

K8s is moving away from the "master" terminology, so kubespray should follow the same naming conventions. See https://github.com/kubernetes/community/blob/65d886bb3029e73d9729e1d4f27422a7985233ed/sig-architecture/naming/recommendations/001-master-control-plane.md

Working symlinks are dependant on git configuration (when using the playbook as
a git repository, which is common), precisely `git config
core.symlinks`.

While this is enabled by default, some company policies will disable it.

Instead, use import_tasks which should avoid that class of bugs.

* Simplify docker systemd unit

systemd handles missing unit by ignoring the dependency so we don't need
to template them.

* Remove RHEL 7/CentOS 7 support

- remove ref in kubespray roles
- move CI from centos 7 to 8
- remove docs related to centos7

* Remove container-storage-setup

Only used for RHEL 7 and CentOS 7

systemd ignores unknown keys (with a warning) so version checking is not
necessary.
There is no rationale for excluding it from ostree systems either.

Signed-off-by: Jongwoo Han <jongwooo.han@gmail.com>

* Feat: add Gateway API CRDs installation

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

* Feat: add Gateway API CRDs variable in inventory

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

---------

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

Signed-off-by: bo.jiang <bo.jiang@daocloud.io>

Signed-off-by: tu1h <lihai.tu@daocloud.io>

* make calico api server manifest backward compatible with version older than 3.27.3

Add 3.28.1 checksums
Add 3.28.0 checksums
Change default version to 3.27.3

* change default calico version to 3.28.1

* Set mount type to DirectoryOrCreate for hostPath needed by Calico

We can't mix some options with --config for kubeadm upgrade.
The --config on upgrade is deprecated, and should be removed.

We explicitly check for equality so customizing kubeadm_version does not
work at the moment.

Use only one variable instead.

Consistent boolean values in ansible playbooks

Signed-off-by: KubeKyrie <shaolong.qin@daocloud.io>