* Add Rocky as a known OS

* Make sure Rocky includes bootstrap-centos.yml

* Update docs with Rocky Linux

* Rocky Linux wireguard and EPEL

* Rocky Linux in the list of supported distributions

* cert-manager: update to 1.5.4

* cert-manager: remove outdated guidelines on creating an initial ClusterIssuer

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

Now that 1.10 is out this is to make 1.9.9 the default. I am running
this version successfully.

* set selinux type t_etc if selinux state is enforcing

* workaround with update repo is no longer needed
remove comments about failing playbook

* grubby is not available in distros using ostree

* remove docker support because removed in fcos
update install script example with live rootfs

* do not call grubby on ostree based distro

* update docs enabling containerd on fedora coreos

* Update docker package to 20.10.6

* Add Fedora 33 image and CI, remove Fedora 31 (EOL)

* Packet->Equinix Metal rename #6901 

Updates throughout to reflect #6901 renaming for Packet to Equinix Metal.

* Rename Packet to Equinix Metal throughout the project #6901

Packet is renamed to Equinix Metal in more contexts including
documentation links. The Terraform provider used is still the Packet
provider. The environment variables and configuration options still
refer to the Packet name.

Signed-off-by: Marques Johansson <mjohansson@equinix.com>

Co-authored-by: Edward Vielmetti <ed@packet.net>

* add support for using ansible 2.10.x for deploying kubespray

* move dns-autoscaler-clusterrole{binding}.yml to files/ folder

* note that ansible 2.10 is now experimentally supported

* coredns: move files to templates like before #4341