docs: add config patch to migration prereqs PLT-1392 (#3911) (#3921)

* docs: add config patch to migration prereqs PLT-1392 * docs: reword prereqs PLT-1392 * docs: reword prereqs PLT-1392 * docs: reduce prereq admonition * docs: reduce prereq admonition * ci: auto-formatting prettier issues --------- Co-authored-by: addetz <[email protected]> (cherry picked from commit 1cda4dc) Co-authored-by: Adelina Simion <[email protected]>
spectrocloud · Sep 13, 2024 · 0df9acc · 0df9acc
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diff --git a/.../docs-content/vm-management/create-manage-vm/advanced-topics/advanced-topics.md b/.../docs-content/vm-management/create-manage-vm/advanced-topics/advanced-topics.md
@@ -21,3 +21,4 @@ by over-committing CPU and memory.
 - [Create VM Templates](./create-vm-template.md)
 - [Create DISK Templates](./create-disk-templates.md)
 - [Over-commit Resources to Enhance VM Performance](./vm-oversubscription.md)
+- [Migrate a VM to a VMO cluster](./migrate-vm-kubevirt.md)
diff --git a/...s-content/vm-management/create-manage-vm/advanced-topics/migrate-vm-kubevirt.md b/...s-content/vm-management/create-manage-vm/advanced-topics/migrate-vm-kubevirt.md
@@ -25,6 +25,49 @@ from VMware vSphere to Palette VMO.
 ## Prerequisites
 
 - A Healthy VMO cluster. Refer to the [Create a VMO Profile](../../create-vmo-profile.md) for further guidance.
+
+  - The VMO cluster must have access to VMware and the VM you want to migrate.
+
+  :::warning
+
+  If you need to provision `Block` storage volumes during the VM migration process, add the following custom
+  configuration to your VMO cluster OS pack. Applying this configuration may cause a cluster repave. For more
+  information, refer to
+  [Repave Behaviors and Configurations](../../../clusters/cluster-management/node-pool.md#repave-behavior-and-configuration)
+
+  Additionally, we recommend provisioning volumes with the `ReadWriteMany` access mode to ensure that VMs can be
+  [live migrated](https://kubevirt.io/user-guide/compute/live_migration/#limitations).
+
+  ```yaml
+  kubeadmconfig:
+     preKubeadmCommands:
+        # Start containerd with new configuration
+        - systemctl daemon-reload
+        - systemctl restart containerd
+     files:
+        - targetPath: /etc/containerd/config.toml
+        targetOwner: "root:root"
+        targetPermissions: "0644"
+        content: |
+           ## template: jinja
+
+           # Use config version 2 to enable new configuration fields.
+           version = 2
+
+           imports = ["/etc/containerd/conf.d/*.toml"]
+
+           [plugins]
+              [plugins."io.containerd.grpc.v1.cri"]
+              sandbox_image = "registry.k8s.io/pause:3.9"
+              device_ownership_from_security_context = true
+              [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
+              runtime_type = "io.containerd.runc.v2"
+              [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
+              SystemdCgroup = true
+  ```
+
+  :::
+
 - A VMware vSphere user account with the necessary permissions to manage the VMs you want to migrate.
   - Migration can optionally accelerated by providing credentials for the ESXi hosts where the VMs reside.
 - One or more VMs hosted in VMware vSphere. Only VMs whose operating systems are included under
@@ -34,16 +77,10 @@ from VMware vSphere to Palette VMO.
   - If you are migrating more than one VM in the same plan, they must all share the same network.
 - The Palette CLI installed and setup. Refer to the
   [Installation](../../../automation/palette-cli/install-palette-cli.md) guide for further details.
+  - The Palette CLI must have access to both the VMO cluster and the machines to be migrated.
 - The kubectl command-line tool should also be installed. Refer to the
   [kubectl installation](https://kubernetes.io/docs/tasks/tools/install-kubectl/) guide to learn more.
 
-:::warning
-
-The VMO cluster must have access to VMware and the VM you want to migrate. The Palette CLI must have access to both the
-VMO cluster and the machines to be migrated.
-
-:::
-
 ## Migrate VMware vSphere VMs
 
 1. Download the [Kubeconfig](../../../clusters/cluster-management/kubeconfig.md) file of the VMO cluster to the host