PuppetDB runs as a Deployment (HPA min 2 / max 5) with its vardir
/opt/puppetlabs/server/data/puppetdb backed by a shared RWX cephfs PVC.
All replicas mount the same path, so they share the stockpile/ command
queue and corrupt each other's unprocessed commands.
Mount the shared PVC with subPathExpr: $(POD_NAME) so each pod gets its
own vardir (and thus its own stockpile queue) on the shared volume.
Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
Ben Vincent