doc(1.6.0): Talos Linux support

longhorn-3161

Signed-off-by: Chin-Ya Huang <chin-ya.huang@suse.com>

content/docs/1.6.0/advanced-resources/os-distro-specific/talos-linux-support.md

@@ -0,0 +1,49 @@
+---
+title:  Talos Linux Support
+weight: 5
+---
+
+Before Longhorn installation on a Talos Linux cluster, specific configurations are required.
+
+- [Installation Of System Extensions](#installation-of-system-extensions)
+- [Data Path Mounts](#data-path-mounts)
+- [References](#references)
+
+## Installation Of System Extensions
+
+Longhorn depends on `siderolabs/iscsi-tools` and `siderolabs/util-linux-tools` system extensions, which need to be installed before installing Longhorn.
+
+The most straightforward way is patching these system extensions into existing Talos Linux nodes.
+
+```yaml
+customization:
+  systemExtensions:
+    officialExtensions:
+      - siderolabs/iscsi-tools
+      - siderolabs/util-linux-tools
+```
+
+For detailed instructions, see Talos' documentation on [System Extensions](https://www.talos.dev/v1.6/talos-guides/configuration/system-extensions/) and [Boot Assets](https://www.talos.dev/v1.6/talos-guides/install/boot-assets/).
+
+## Data Path Mounts
+
+Longhorn requires to mount the datapath to the kubelete container.
+
+```yaml
+machine:
+  kubelet:
+    extraMounts:
+      - destination: /var/lib/longhorn
+        type: bind
+        source: /var/lib/longhorn
+        options:
+          - bind
+          - rshared
+          - rw
+```
+
+For detailed instructions, see Talos' documentation on [Editing Machine Configuration](https://www.talos.dev/v1.6/talos-guides/configuration/editing-machine-configuration/).
+
+## References
+
+- [[FEATURE] Talos support](https://github.com/longhorn/longhorn/issues/3161)

content/docs/1.6.0/best-practices.md

@@ -57,6 +57,7 @@ The following Linux OS distributions and versions have been verified during the
 | 4.  | RHEL         | 9.1
 | 5.  | Oracle Linux | 9.1
 | 6.  | Rocky Linux  | 9.2
+| 7.  | Talos Linux  | 1.6.0
 
 Note: It's recommended to guarantee that the kernel version is at least 5.8 as there is filesystem optimization/improvement since this version. See [this issue](https://github.com/longhorn/longhorn/issues/2507#issuecomment-857195496) for details.
 

content/docs/1.6.0/deploy/install/_index.md

@@ -49,6 +49,7 @@ For the minimum recommended hardware, refer to the [best practices guide.](../..
 - **K3s clusters** require some extra setup. Refer to [this section](../../advanced-resources/os-distro-specific/csi-on-k3s)
 - **RKE clusters with CoreOS** need [this configuration.](../../advanced-resources/os-distro-specific/csi-on-rke-and-coreos)
 - **OCP/OKD clusters** require some extra setup. Refer to [this section](../../advanced-resources/os-distro-specific/okd-support)
+- **Talos Linux** require some extra setup. Refer to [this section](../../advanced-resources/os-distro-specific/talos-linux-support)
 
 ### Using the Environment Check Script
 
@@ -156,6 +157,8 @@ You may need to edit the cluster security group to allow SSH access.
   systemctl start iscsid
   ```
 
+- For Talos Linux, refer to [this section](../../advanced-resources/os-distro-specific/talos-linux-support.md).
+
 Please ensure iscsi_tcp module has been loaded before iscsid service starts. Generally, it should be automatically loaded along with the package installation.
 
 ```
@@ -223,6 +226,8 @@ The command used to install a NFSv4 client differs depending on the Linux distri
   zypper install nfs-client
   ```
 
+- For Talos Linux, [The NFS client is part of the `kubelet` image maintained by the Talos team](https://www.talos.dev/v1.6/kubernetes-guides/configuration/storage/#nfs).
+
 We also provide an `nfs` installer to make it easier for users to install `nfs-client` automatically:
 ```
 kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v{{< current-version >}}/deploy/prerequisite/longhorn-nfs-installation.yaml