NFS server restart broke NFSv3 (lockd kernel bug on PVE 6.14). All 52 NFS PVs patched to nfsvers=4, NFSv3 disabled on PVE. Changes: - nfs_volume module: add nfsvers=4 mount option - nfs-csi StorageClass: add nfsvers=4 mount option - dbaas: MySQL serverInstances 3→1, mysql-native-password=ON - monitoring: add NFSCSINodeDown and NFSMountFailures alerts [ci skip] Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
StorageClass mountOptions only apply during dynamic provisioning. Static PVs (created by Terraform) need mount_options set explicitly. Without this, all CSI NFS mounts default to hard,timeo=600 — the exact problem we were trying to fix.
- Deploy csi-driver-nfs Helm chart as platform module (nfs-csi) - Create nfs-truenas StorageClass with soft,timeo=30,retrans=3 mount options - Add shared nfs_volume module for PV/PVC boilerplate (modules/kubernetes/nfs_volume/)
