fix(chart): sane default storage (ReadWriteOnce + cluster default class)#24
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The five XNAT data volumes (and the bundled CNPG cluster) defaulted to accessMode ReadWriteMany on a storageClass literally named "default", which is unsatisfiable on a standard EKS/EBS cluster (EBS has no RWX, and few clusters have a class named "default") — PVCs sit Pending on a fresh single-replica install. - Default the data volumes to ReadWriteOnce. - Default storageClass to "" so PVCs use the cluster's default StorageClass; the templates omit storageClassName when empty rather than setting it to "" (which would disable dynamic provisioning). - Same for cnpg.cluster.storage.storageClass; the Cluster template now omits the field when empty. - Document that multi-replica XNAT or the container-service should set the shared volumes (build, archive) to ReadWriteMany on an RWX class.
kathrynalpert
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Jun 11, 2026
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This is breaking for existing installs, right? We should make sure this is clear in the semver
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The five XNAT data volumes (and the bundled CNPG cluster) defaulted to accessMode ReadWriteMany on a storageClass literally named "default", which is unsatisfiable on a standard EKS/EBS cluster (EBS has no RWX, and few clusters have a class named "default") — PVCs sit Pending on a fresh single-replica install.