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>

* Fix: fix testcases_run.sh for upgrade tests

Need to git checkout ${CI_COMMIT_SHA} before running upgrade playbook (revert #11173 partially)

* feat: add CI job to test upgrade

Add a packet_ubuntu22-calico-all-in-one-upgrade job

* 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

Bumps [molecule](https://github.com/ansible-community/molecule) from 24.7.0 to 24.8.0.
- [Release notes](https://github.com/ansible-community/molecule/releases)
- [Commits](https://github.com/ansible-community/molecule/compare/v24.7.0...v24.8.0

)

---
updated-dependencies:
- dependency-name: molecule
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

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

* chore(containerd): add some config debug options

See: https://github.com/containerd/containerd/blob/v1.7.15/docs/man/containerd-config.toml.5.md

* chore(containerd): add CRI config options

See: https://github.com/containerd/containerd/blob/v1.7.15/docs/man/containerd-config.toml.5.md
See: https://github.com/containerd/containerd/blob/v1.7.15/docs/cri/config.md

Bumps [tox](https://github.com/tox-dev/tox) from 4.17.1 to 4.18.0.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](https://github.com/tox-dev/tox/compare/4.17.1...4.18.0

)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

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

Signed-off-by: Mengxin Liu <liumengxinfly@gmail.com>

Bumps [tox](https://github.com/tox-dev/tox) from 4.16.0 to 4.17.1.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](https://github.com/tox-dev/tox/compare/4.16.0...4.17.1

)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* fix: use super-admin.conf for kube-vip when it exists

* Mathieu Parent add as co-author

Co-authored-by: Mathieu Parent <math.parent@gmail.com>

* template change for readability

* fix lint error

---------

Co-authored-by: Mathieu Parent <math.parent@gmail.com>

fix task failure:
TASK [kubernetes-apps/network_plugin/multus : Multus | Start resources] ************************************************
fatal: [hfal12k8n1 -> {{ groups['kube_control_plane'][0] }}]: FAILED! => {"msg": "Error in jmespath.search in json_query filter plugin:\n'ansible.vars.hostvars.HostVarsVars object' has no attribute 'multus_manifest_2'"}