Upgrading k0rdent#

Upgrading k0rdent involves making upgrades to the Management object. To do that, you must have the Global Admin role. (For detailed information about k0rdent RBAC roles and permissions, refer to the RBAC documentation.) Follow these steps to upgrade k0rdent:

Create a new Release object

Start by creating a Release object in the management cluster that points to the desired version. You can see available versions at https://github.com/k0rdent/kcm/releases. The actual Release object includes information on the templates and resources that are available, as well as the version of the Kubernetes Cluster API. For example, the v0.1.0 Release object looks like this:

apiVersion: k0rdent.mirantis.com/v1alpha1
kind: Release
metadata:
  name: kcm-0-1-0
  annotations:
    helm.sh/resource-policy: keep
spec:
  version: 0.1.0
  kcm:
    template: kcm-0-1-0
  capi:
    template: cluster-api-0-1-0
  providers:
    - name: k0smotron
      template: k0smotron-0-1-0
    - name: cluster-api-provider-azure
      template: cluster-api-provider-azure-0-1-0
    - name: cluster-api-provider-vsphere
      template: cluster-api-provider-vsphere-0-1-0
    - name: cluster-api-provider-aws
      template: cluster-api-provider-aws-0-1-0
    - name: cluster-api-provider-openstack
      template: cluster-api-provider-openstack-0-1-0
    - name: projectsveltos
      template: projectsveltos-0-45-0

Thankfully, you don't have to build these YAML files yourself. Once you've chosen a release, you can go ahead and create the release object by referencing the YAML file online, as in:

VERSION=v0.1.0
kubectl create -f https://github.com/k0rdent/kcm/releases/download/${VERSION}/release.yaml

List Available Releases

Once you've created the new Release you need to update the Management object to use it. Start by viewing all available Releases:
```
kubectl get releases
```
```
NAME        AGE
kcm-0-0-6   71m
kcm-0-0-7   65m
kcm-0-1-0   12m
```
Patch the Management object with the new Release

Update the spec.release field in the Management object to point to the new release. Replace <release-name> with the name of your desired release:
```
RELEASE_NAME=kcm-0-1-0
kubectl patch management.kcm kcm --patch "{\"spec\":{\"release\":\"${RELEASE_NAME}\"}}" --type=merge
```
Verify the Upgrade

Although the change will be made immediately, it will take some time for k0rdent to update the components it should be using. Monitor the readiness of the Management object to ensure the upgrade was successful. For example:
```
kubectl get management.kcm kcm
NAME   READY   RELEASE     AGE
kcm    True    kcm-0-1-0   4m34s
```