Upgrade

All components in Elemental are managed using Kubernetes. Below is how to use Kubernetes approaches to upgrade the components.

Elemental node upgrade

Elemental nodes are upgraded with the Elemental Operator. Refer to the Elemental Operator documentation for complete information.

Upgrade can be achieve either with CLI or UI:

• Command Line Interface
• User Interface

Upgrade via command line interface

There are two ways of selecting nodes for upgrading. Via a cluster target, which will match ALL nodes in a cluster that matches our selector or via node selector, which will match nodes based on the node labels. Node selector allows us to be more targeted with the upgrade while cluster selector just selects all the nodes in a matched cluster.

Updating an existing ManagedOSImage will trigger a new upgrade cycle, to reconcile the configured image (or image version) to all targeted nodes.

With 'clusterTarget'

You can target nodes for an upgrade via a clusterTarget by setting it to the cluster name that you want to upgrade. All nodes in a cluster that matches that name will match and be upgraded.

upgrade-cluster-target.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name: my-upgrade
  namespace: fleet-default
spec:
  # Set to the new Elemental version you would like to upgrade to or track the latest tag
  osImage: "registry.suse.com/suse/sle-micro/5.5:latest"
  clusterTargets:
    - clusterName: my-cluster

With nodeSelector

You can target nodes for an upgrade via a nodeSelector by setting it to the label and value that you want to match. Any nodes containing that key with the value will match and be upgraded.

upgrade-node-selector.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name: my-upgrade
  namespace: fleet-default
spec:
  # Set to the new Elemental version you would like to upgrade to
  osImage: "registry.suse.com/suse/sle-micro/5.5:latest"
  clusterTargets:
    - clusterName: my-cluster
  nodeSelector:
    matchLabels:
      kubernetes.io/hostname: my-machine

With FORCE flag

When upgrading to an older version or the same version that is already running the upgrade-procedure will be skipped.

It is possible to force upgrades to older versions by setting the FORCE environment variable as shown below.

upgrade-force.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name: my-upgrade
  namespace: fleet-default
spec:
  # Set to the new Elemental version you would like to upgrade to
  osImage: "registry.suse.com/suse/sle-micro/5.5:latest"
  clusterTargets:
    - clusterName: my-cluster
  upgradeContainer:
    envs:
      - name: FORCE
        value: "true"

With UPGRADE_RECOVERY flag

You can decide upgrade the Recovery partition when upgrading the system, or alternatively to upgrade the Recovery partition only.

upgrade-recovery.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name: my-upgrade-recovery
  namespace: fleet-default
spec:
  # Set to the new Elemental version you would like to upgrade to
  osImage: "registry.suse.com/suse/sle-micro/5.5:latest"
  clusterTargets:
    - clusterName: my-cluster
  upgradeContainer:
    envs:
      # Use UPGRADE_RECOVERY_ONLY to upgrade the recovery partition only. (This has the same effect as FORCE="true")
      - name: UPGRADE_RECOVERY_ONLY
        value: "false"
      # Use UPGRADE_RECOVERY to upgrade both system and recovery partitions.
      - name: UPGRADE_RECOVERY
        value: "true"

Selecting source for upgrade

Via 'osImage'

Just specify an OCI image on the osImage field

upgrade-cluster-target.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name: my-upgrade
  namespace: fleet-default
spec:
  # Set to the new Elemental version you would like to upgrade to or track the latest tag
  osImage: "registry.suse.com/suse/sle-micro/5.5:latest"
  clusterTargets:
    - clusterName: my-cluster

Via 'ManagedOSVersion'

In this case we use the auto populated ManagedOSVersion resources to set the wanted managedOSVersionName field. See section Managing available versions to understand how the ManagedOSVersion are managed.

upgrade-managedos-version.yaml

apiVersion: elemental.cattle.io/v1beta1
kind: ManagedOSImage
metadata:
  name:  my-upgrade
  namespace: fleet-default
spec:
  # Set to the new ManagedOSVersion you would like to upgrade to
  managedOSVersionName: v0.1.0-alpha22-amd64
  clusterTargets:
    - clusterName: my-cluster

Warning

If both osImage and ManagedOSVersion are defined in the same ManagedOSImage be aware that osImage takes precedence.

Managing available versions

It is possible to create ManagedOSVersions directly, or to subscribe to ManagedOSVersionChannels to automatically sync ManagedOSVersions from them.

For more details and a list of available channels, or to even make your own, please read the documentation.

Upgrade via user interface

To upgrade via the UI, you have to go in the Elemental Advanced menu, then click on Update Groups.

Choose a name, select clusters to target and choose between the two upgrade ways:

Via Managed OS Version

In this case, a OS Version Channels is used to auto populated OS Versions resources.

The channel bellow is provide by us but you can bring your own channel as well.

See section Managing available versions to understand how the ManagedOSVersion are managed.

After a short syncing time, you will see your OS Versions appears in the OS Versions menu.

Finally, you can select the OS Versions when you create your Upgrade Group according to the following screenshot:

Via Image from registry

Just specify an OCI image on the Image path field to upgrade to:

Click on the Create button to start the upgrade process, if you have multiple nodes, the upgrade will be done sequentially node by node.