From 52ad37aedd44017f188c762b26b76ae80deeb86e Mon Sep 17 00:00:00 2001 From: Ian Thompson Date: Wed, 1 Jul 2026 15:30:03 +0100 Subject: [PATCH] docs/configuration/01-prerequisites: Add docs for volume expansion configuration Add documentation for configuring Cinder volume expansion in the Kubernetes `storageClass` definition. --- docs/configuration/01-prerequisites.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/configuration/01-prerequisites.md b/docs/configuration/01-prerequisites.md index ae194880..76cc8192 100644 --- a/docs/configuration/01-prerequisites.md +++ b/docs/configuration/01-prerequisites.md @@ -65,6 +65,9 @@ cluster, they **must** be from an SSD-backed pool. !!! tip If you do not have much SSD capacity, it is possible to configure Kubernetes nodes so that etcd is on a separate block device, using a different volume type. See [etcd configuration](./03-kubernetes-config.md#etcd-configuration) for details. + +!!! tip + By default persistent volumes using the default Cinder CSI storage class cannot be expanded, if you are certain the driver being used allows for dynamic resizing this can be enabled by setting `capi_cluster_addons_csi_cinder_allow_volume_expansion: true`. ### OpenStack project quotas