Chapter 3. Installing and configuring the MTV Operator
You can install the MTV Operator by using the Red Hat OpenShift web console or the command line interface (CLI).
In Migration Toolkit for Virtualization (MTV) version 2.4 and later, the MTV Operator includes the MTV plugin for the Red Hat OpenShift web console.
After you install the MTV Operator by using either the Red Hat OpenShift web console or the CLI, you can configure the Operator.
3.1. Installing the MTV Operator by using the Red Hat OpenShift web console Copy linkLink copied to clipboard!
You can install the MTV Operator by using the Red Hat OpenShift web console.
Prerequisites
- Red Hat OpenShift 4.14 or later installed.
- OpenShift Virtualization Operator installed on an OpenShift migration target cluster.
-
You must be logged in as a user with
cluster-adminpermissions.
Procedure
-
In the Red Hat OpenShift web console, click Operators
OperatorHub. - Use the Filter by keyword field to search for mtv-operator.
- Click Migration Toolkit for Virtualization Operator and then click Install.
- Click Create ForkliftController when the button becomes active.
Click Create.
Your ForkliftController appears in the list that is displayed.
-
Click Workloads
Pods to verify that the MTV pods are running. Click Operators
Installed Operators to verify that Migration Toolkit for Virtualization Operator appears in the openshift-mtv project with the status Succeeded. When the plugin is ready you will be prompted to reload the page. The Migration menu item is automatically added to the navigation bar, displayed on the left of the Red Hat OpenShift web console.
3.2. Installing the MTV Operator from the command line interface Copy linkLink copied to clipboard!
You can install the MTV Operator from the command line interface (CLI).
Prerequisites
- Red Hat OpenShift 4.14 or later installed.
- OpenShift Virtualization Operator installed on an OpenShift migration target cluster.
-
You must be logged in as a user with
cluster-adminpermissions.
Procedure
Create the openshift-mtv project:
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Create an
OperatorGroupCR calledmigration:Copy to Clipboard Copied! Toggle word wrap Toggle overflow Create a
SubscriptionCR for the Operator:Copy to Clipboard Copied! Toggle word wrap Toggle overflow Create a
ForkliftControllerCR:Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify that the MTV pods are running:
oc get pods -n openshift-mtv
$ oc get pods -n openshift-mtvCopy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.3. Configuring the MTV Operator Copy linkLink copied to clipboard!
You can configure all of the following settings of the MTV Operator by modifying the ForkliftController CR, or in the Settings section of the Overview page, unless otherwise indicated.
- Maximum number of virtual machines (VMs) per plan that can be migrated simultaneously.
-
How long
must gatherreports are retained before being automatically deleted. - CPU limit allocated to the main controller container.
- Memory limit allocated to the main controller container.
- Interval at which a new snapshot is requested before initiating a warm migration.
- Frequency with which the system checks the status of snapshot creation or removal during a warm migration.
-
Percentage of space in persistent volumes allocated as file system overhead when the
storageclassisfilesystem(ForkliftControllerCR only). -
Fixed amount of additional space allocated in persistent block volumes. This setting is applicable for any
storageclassthat is block-based (ForkliftControllerCR only). -
Configuration map of operating systems to preferences for vSphere source providers (
ForkliftControllerCR only). -
Configuration map of operating systems to preferences for Red Hat Virtualization (RHV) source providers (
ForkliftControllerCR only).
The procedure for configuring these settings using the user interface is presented in Configuring MTV settings. The procedure for configuring these settings by modifying the ForkliftController CR is presented following.
Procedure
-
Change a parameter’s value in the
specportion of theForkliftControllerCR by adding the label and value as follows:
spec: label: value
spec:
label: value
- 1
- Labels you can configure using the CLI are shown in the table that follows, along with a description of each label and its default value.
| Label | Description | Default value |
|---|---|---|
|
| The maximum number of VMs per plan that can be migrated simultaneously. |
|
|
|
The duration in hours for retaining |
|
|
| The CPU limit allocated to the main controller container. |
|
|
| The memory limit allocated to the main controller container. |
|
|
| The interval in minutes at which a new snapshot is requested before initiating a warm migration. |
|
|
| The frequency in seconds with which the system checks the status of snapshot creation or removal during a warm migration. |
|
|
|
Percentage of space in persistent volumes allocated as file system overhead when the
|
|
|
|
Fixed amount of additional space allocated in persistent block volumes. This setting is applicable for any
|
|
|
| Configuration map for vSphere source providers. This configuration map maps the operating system of the incoming VM to a OpenShift Virtualization preference name. This configuration map needs to be in the namespace where the MTV Operator is deployed.
To see the list of preferences in your OpenShift Virtualization environment, open the OpenShift web console and click Virtualization
You can add values to the configuration map when this label has the default value,
|
|
|
| Configuration map for RHV source providers. This configuration map maps the operating system of the incoming VM to a OpenShift Virtualization preference name. This configuration map needs to be in the namespace where the MTV Operator is deployed.
To see the list of preferences in your OpenShift Virtualization environment, open the OpenShift web console and click Virtualization
You can add values to the configuration map when this label has the default value,
|
|