Remove configuration variable kubeadm_control_plane

* kube-proxy never gets deployed so need to remove it

* Make metallb image repos configurable

* Moved metallb image repo definitions to download role defaults

* Removed comment. These are set in download defaults

After host reboot kubelet and crio goes into a loop and no container is started.

storage_driver in crio.conf overrides system defaults in etc/containers/storage.conf

/etc/containers/storage.conf is installed by package containers-common dependency
installed from cri-o (centos7) and contains "overlay".

Hosts already configured with overlay2 should be reconfigured and the
/var/lib/containers content removed.

* Add comment from roles/kubespray-defaults/defaults/main.yaml clarifying network allocation and sizes

Signed-off-by: Mikael Johansson <mik.json@gmail.com>

* Rewrite of the comment and added new examples

Signed-off-by: Mikael Johansson <mik.json@gmail.com>

Allowing resource management of metrics-server container.  Will allow fine-tuning of resource allocation and solving throttling issues. Setting defaults as per the current request & limit allocation: cpu: 43m, memory 55Mi for both limits & requests. (#6652)

Signed-off-by: Brendan Holmes <holmesb@users.noreply.github.com>

Co-authored-by: Brendan Holmes <holmesb@users.noreply.github.com>

* remove podman cni plugin

* configure networkamanger global dns

* allow installation of python3-libselinux by disabling update repo temporary

* remove ipv4 section because it is not a valid configuration

Removes these startup warnings:

Warning: For remote container runtime, --pod-infra-container-image is ignored in kubelet, which should be set in that remote runtime instead
Using "/var/run/crio/crio.sock" as endpoint is deprecated, please consider using full url format "unix:///var/run/crio/crio.sock".

* 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>

* Rotate kubelet server certificate.

* CI test kubelet server cert rotation

* Approve kubelet serving certificates in tests.

Add snapshot-controller for CSI drivers and snapshot CRDs, add a default volumesnapshotclass when running cinder CSI (#6537)

* add snapshot-controller and v1beta1 snapshot api

* fix typo

* udpate manifest to v1beta1

* update

* update manifests

* fix spelling

* wait until crd is applied

* fix missing info in kube module

* revert snapshotclass

* add snapshot crds before applying the csi driver

* add crds, missed them in last commit

* use pull policy from kubespray

* Update CustomResourceDefinition for kubecontrollersconfigurations.crd.projectcalico.org to v1
* Align ClusterRole for kube-controllers with upstream (calico)

Signed-off-by: Miouge1 <maxime@root314.com>