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# StorageClasses — Applied after Longhorn installation
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# The default 'longhorn' SC is created by Helm chart
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# These are additional specialized classes
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---
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# CNPG-specific StorageClass for PostgreSQL volumes
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# CNPG handles filesystem ownership via securityContext.fsGroup (UID/GID 26)
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# Separate from default 'longhorn' to allow CNPG-specific tuning
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apiVersion: storage.k8s.io/v1
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kind: StorageClass
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metadata:
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name: longhorn-cnpg
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annotations:
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storageclass.kubernetes.io/is-default-class: "false"
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argocd.argoproj.io/sync-options: Prune=false # Allow ArgoCD adoption
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provisioner: driver.longhorn.io
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allowVolumeExpansion: true
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parameters:
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numberOfReplicas: "3"
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staleReplicaTimeout: "30"
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fromBackup: ""
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dataLocality: "best-effort"
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fsType: "ext4"
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# mountOptions removed - uid/gid are NOT valid for ext4 (only for FAT/VFAT)
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# CNPG handles ownership via securityContext.fsGroup automatically
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reclaimPolicy: Delete
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volumeBindingMode: Immediate
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