Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

Cluster update known issues

This section lists the cluster update known issues with workarounds for the Mirantis OpenStack for Kubernetes release 23.2.3.

[34342] etcd pods failure

During the update, you may encounter the issue that causes a failure of the etcd pods due to the simultaneous deployment of several pods on a single node.

The workaround is to remove the PVC for one etcd pod.

[35111] openstack-operator-ensure-resources job stuck in CrashLoopBackOff

During MOSK update to either 23.2 major release or any patch release of the 23.2 release series, the openstack-operator-ensure-resources job may get stuck in the CrashLoopBackOff state with the following error:

Traceback (most recent call last):
File "/usr/local/bin/osctl-ensure-shared-resources", line 8, in <module>
  sys.exit(main())
File "/usr/local/lib/python3.8/dist-packages/openstack_controller/cli/ensure_shared_resources.py", line 61, in main
  obj.update()
File "/usr/local/lib/python3.8/dist-packages/pykube/objects.py", line 165, in update
  self.patch(self.obj, subresource=subresource)
File "/usr/local/lib/python3.8/dist-packages/pykube/objects.py", line 157, in patch
  self.api.raise_for_status(r)
File "/usr/local/lib/python3.8/dist-packages/pykube/http.py", line 444, in raise_for_status
  raise HTTPError(resp.status_code, payload["message"])
pykube.exceptions.HTTPError: CustomResourceDefinition.apiextensions.k8s.io "redisfailovers.databases.spotahome.com" is invalid: spec.preserveUnknownFields: Invalid value: true: must be false in order to use defaults in the schema

As a workaround, delete the redisfailovers.databases.spotahome.com CRD from your cluster:

kubectl delete crd redisfailovers.databases.spotahome.com

[37012] Masakari failure during update

While updating your cluster, the Instance High Availability service (OpenStack Masakari) may not work as expected.

As a workaround, temporarily disable the service by removing instance-ha from the service list in the OpenStackDeployment custom resource.