Updated the 'Installing Kubernetes with Kubespray'

1. Add the OS supported by the current version of Kubespray.
   [ref 1: kubespray](https://github.com/kubernetes-sigs/kubespray/blob/master/README.md#deploy-a-production-ready-kubernetes-cluster)

2. Supplement the features provided by the Kubespray overview.
   [ref 2: kubespray](https://github.com/kubernetes-sigs/kubespray/blob/master/README.md#deploy-a-production-ready-kubernetes-cluster)

3. Update Supported Linux Distributions.
   [ref 3: Supported Linux Distributions](https://github.com/kubernetes-sigs/kubespray#supported-linux-distributions)

4. Improve the description in '(1/5) Meet the underlay requirements'
   [ref 4: Requirements](https://github.com/kubernetes-sigs/kubespray/blob/master/README.md#requirements)

5. Add whatsnext.

Signed-off-by: ydFu <ader.ydfu@gmail.com>

content/en/docs/setup/production-environment/tools/kubespray.md

@@ -8,19 +8,24 @@ weight: 30
 
 This quickstart helps to install a Kubernetes cluster hosted on GCE, Azure, OpenStack, AWS, vSphere, Equinix Metal (formerly Packet), Oracle Cloud Infrastructure (Experimental) or Baremetal with [Kubespray](https://github.com/kubernetes-sigs/kubespray).
 
-Kubespray is a composition of [Ansible](https://docs.ansible.com/) playbooks, [inventory](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/ansible.md), provisioning tools, and domain knowledge for generic OS/Kubernetes clusters configuration management tasks. Kubespray provides:
+Kubespray is a composition of [Ansible](https://docs.ansible.com/) playbooks, [inventory](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/ansible.md#inventory), provisioning tools, and domain knowledge for generic OS/Kubernetes clusters configuration management tasks. 
 
-* a highly available cluster
+Kubespray provides:
-* composable attributes
+* Highly available cluster.
-* support for most popular Linux distributions
+* Composable (Choice of the network plugin for instance).
-  * Ubuntu 16.04, 18.04, 20.04, 22.04
+* Supports most popular Linux distributions:
-  * CentOS/RHEL/Oracle Linux 7, 8
+  - Flatcar Container Linux by Kinvolk
-  * Debian Buster, Jessie, Stretch, Wheezy
+  - Debian Bullseye, Buster, Jessie, Stretch
-  * Fedora 34, 35
+  - Ubuntu 16.04, 18.04, 20.04, 22.04
-  * Fedora CoreOS
+  - CentOS/RHEL 7, 8
-  * openSUSE Leap 15
+  - Fedora 34, 35
-  * Flatcar Container Linux by Kinvolk
+  - Fedora CoreOS
-* continuous integration tests
+  - openSUSE Leap 15.x/Tumbleweed
+  - Oracle Linux 7, 8
+  - Alma Linux 8
+  - Rocky Linux 8
+  - Amazon Linux 2 
+* Continuous integration tests.
 
 To choose a tool which best fits your use case, read [this comparison](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/comparisons.md) to
 [kubeadm](/docs/reference/setup-tools/kubeadm/) and [kops](/docs/setup/production-environment/tools/kops/).
@@ -33,13 +38,13 @@ To choose a tool which best fits your use case, read [this comparison](https://g
 
 Provision servers with the following [requirements](https://github.com/kubernetes-sigs/kubespray#requirements):
 
-* **Ansible v2.11 and python-netaddr are installed on the machine that will run Ansible commands**
+* **Minimum required version of Kubernetes is v1.22**
-* **Jinja 2.11 (or newer) is required to run the Ansible Playbooks**
+* **Ansible v2.11+, Jinja 2.11+ and python-netaddr is installed on the machine that will run Ansible commands**
-* The target servers must have access to the Internet in order to pull docker images. Otherwise, additional configuration is required ([See Offline Environment](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/offline-environment.md))
+* The target servers must have **access to the Internet** in order to pull docker images. Otherwise, additional configuration is required See ([Offline Environment](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/offline-environment.md))
-* The target servers are configured to allow **IPv4 forwarding**
+* The target servers are configured to allow **IPv4 forwarding**.
-* **Your ssh key must be copied** to all the servers in your inventory
+* If using IPv6 for pods and services, the target servers are configured to allow **IPv6 forwarding**.
-* **Firewalls are not managed by kubespray**. You'll need to implement appropriate rules as needed. You should disable your firewall in order to avoid any issues during deployment
+* The **firewalls are not managed**, you'll need to implement your own rules the way you used to. in order to avoid any issue during deployment you should disable your firewall.
-* If kubespray is run from a non-root user account, correct privilege escalation method should be configured in the target servers and the `ansible_become` flag or command parameters `--become` or `-b` should be specified
+* If kubespray is run from non-root user account, correct privilege escalation method should be configured in the target servers. Then the `ansible_become` flag or command parameters `--become` or `-b` should be specified.
 
 Kubespray provides the following utilities to help provision your environment:
 
@@ -110,11 +115,10 @@ When running the reset playbook, be sure not to accidentally target your product
 
 ## Feedback
 
-* Slack Channel: [#kubespray](https://kubernetes.slack.com/messages/kubespray/) (You can get your invite [here](https://slack.k8s.io/))
+* Slack Channel: [#kubespray](https://kubernetes.slack.com/messages/kubespray/) (You can get your invite [here](https://slack.k8s.io/)).
-* [GitHub Issues](https://github.com/kubernetes-sigs/kubespray/issues)
+* [GitHub Issues](https://github.com/kubernetes-sigs/kubespray/issues).
 
 ## {{% heading "whatsnext" %}}
 
-
+* Check out planned work on Kubespray's [roadmap](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/roadmap.md).
-Check out planned work on Kubespray's [roadmap](https://github.com/kubernetes-sigs/kubespray/blob/master/docs/roadmap.md).
+* Learn more about [Kubespray](https://github.com/kubernetes-sigs/kubespray).
-