Customization

This section covers different topics of customization regarding backing up and restoring k0rdent.

Velero installation

The Velero helm chart is supplied with the k0rdent helm chart and is enabled by default. There are 2 ways of customizing the chart values:

1. Install using helm and add corresponding parameters to the helm install command.

   Note

   Only a plugin that supports Object Store is required during restoration; the other parameters are optional.

   For example, this command installs k0rdent via helm install with a configured plugin, BackupStorageLocation and propagated credentials:

   helm install kcm oci://ghcr.io/k0rdent/kcm/charts/kcm \
    --version <version> \
    --create-namespace \
    --namespace kcm-system \
    --set-file velero.credentials.secretContents.cloud=<full-path-to-file> \
    --set velero.credentials.useSecret=true \
    --set velero.backupsEnabled=true \
    --set velero.configuration.backupStorageLocation[0].name=<backup-storage-location-name> \
    --set velero.configuration.backupStorageLocation[0].provider=<provider-name> \
    --set velero.configuration.backupStorageLocation[0].bucket=<bucket-name> \
    --set velero.configuration.backupStorageLocation[0].config.region=<region> \
    --set velero.initContainers[0].name=velero-plugin-for-<provider-name> \
    --set velero.initContainers[0].image=velero/velero-plugin-for-<provider-name>:<provider-plugin-tag> \
    --set velero.initContainers[0].volumeMounts[0].mountPath=/target \
    --set velero.initContainers[0].volumeMounts[0].name=plugins
   

2. Create or modify the existing Management object in the .spec.config.kcm.

   Note

   Only a plugin that supports Object Store is required during restoration; the other parameters are optional.

   For example, this is a Management object with a configured plugin and enabled metrics:

   apiVersion: k0rdent.mirantis.com/v1alpha1
   kind: Management
   metadata:
     name: kcm
   spec:
     # ...
     core:
       kcm:
         config:
           velero:
             initContainers:
             - name: velero-plugin-for-<provider-name>
               image: velero/velero-plugin-for-<provider-name>:<provider-plugin-tag>
               imagePullPolicy: IfNotPresent
               volumeMounts:
               - mountPath: /target
                 name: plugins
             metrics:
               enabled: true
     # ...
   

To fully disable velero, set the velero.enabled parameter to false.

Schedule Expression Format

The ManagementBackup .spec.schedule field accepts a correct Cron expression, along with the nonstandard predefined scheduling definitions and an extra definition @every with a number and a valid time unit (valid time units are ns, us (or µs), ms, s, m, h).

The following list contains acceptable .spec.schedule example values:

• 0 */1 * * * (standard Cron expression)
• @hourly (nonstandard predefined definition)
• @every 1h (extra definition)

Putting Extra Objects in a Management Backup

If you need to back up objects other than those backed up by default, you can add the label k0rdent.mirantis.com/component="kcm" to these objects.

All objects containing the label will be automatically added to the management backup.