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configuring-mtv-operator.adoc

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Configuring the {operator-name}

You can configure all of the following settings of the {operator-name} 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 gather reports 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 storageclass is filesystem (ForkliftController CR only).

  • Fixed amount of additional space allocated in persistent block volumes. This setting is applicable for any storageclass that is block-based (ForkliftController CR only).

  • Configuration map of operating systems to preferences for vSphere source providers (ForkliftController CR only).

  • Configuration map of operating systems to preferences for {rhv-full} ({rhv-short}) source providers (ForkliftController CR 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 spec portion of the ForkliftController CR by adding the label and value as follows:

spec:
  label: value (1)

  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.

Table 1. {operator-name} labels
Label Description Default value

controller_max_vm_inflight

The maximum number of VMs per plan that can be migrated simultaneously.

20

must_gather_api_cleanup_max_age

The duration in hours for retaining must gather reports before they are automatically deleted.

-1 (disabled)

controller_container_limits_cpu

The CPU limit allocated to the main controller container.

500m

controller_container_limits_memory

The memory limit allocated to the main controller container.

800Mi

controller_precopy_interval

The interval in minutes at which a new snapshot is requested before initiating a warm migration.

60

controller_snapshot_status_check_rate_seconds

The frequency in seconds with which the system checks the status of snapshot creation or removal during a warm migration.

10

controller_filesystem_overhead

Percentage of space in persistent volumes allocated as file system overhead when the storageclass is filesystem.

ForkliftController CR only.

10

controller_block_overhead

Fixed amount of additional space allocated in persistent block volumes. This setting is applicable for any storageclass that is block-based. It can be used when data, such as encryption headers, is written to the persistent volumes in addition to the content of the virtual disk.

ForkliftController CR only.

0

vsphere_osmap_configmap_name

Configuration map for vSphere source providers. This configuration map maps the operating system of the incoming VM to a {virt} preference name. This configuration map needs to be in the namespace where the {project-short} Operator is deployed.

To see the list of preferences in your {virt} environment, open the {ocp-name} web console and click Virtualization → Preferences.

You can add values to the configuration map when this label has the default value, forklift-vsphere-osmap. In order to override or delete values, specify a configuration map that is different from forklift-vsphere-osmap.

ForkliftController CR only.

forklift-vsphere-osmap

ovirt_osmap_configmap_name

Configuration map for {rhv-short} source providers. This configuration map maps the operating system of the incoming VM to a {virt} preference name. This configuration map needs to be in the namespace where the {project-short} Operator is deployed.

To see the list of preferences in your {virt} environment, open the {ocp-name} web console and click Virtualization → Preferences.

You can add values to the configuration map when this label has the default value, forklift-ovirt-osmap. In order to override or delete values, specify a configuration map that is different from forklift-ovirt-osmap.

ForkliftController CR only.

forklift-ovirt-osmap