58 lines
1.9 KiB
YAML
58 lines
1.9 KiB
YAML
{{- /*
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Phase 5 of ADR 0003 — two-layer protection for tenant volumes.
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Layer A — local CoW snapshots (`task: snapshot`)
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Hourly. Instant. Zero blocking. Block-level CoW means the snapshot
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shares blocks with live data; only diverged writes consume new
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space. Cheap to keep ~24 hours of granular undo.
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Layer B — async S3 backup (`task: backup`)
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Daily. Block-incremental. The customer's workflow never waits on
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the upload — Longhorn streams blocks to the configured S3 target
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in the background. Renders the cluster's data durable off-cluster
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even if Layer A snapshots are wiped (e.g. server reformat).
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Both layers are independent of Tower's existing application-level
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pg_dump backup. The application backup captures higher-level
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semantic state (schema-aware, restorable to a different PG major
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or cluster) and is what makes cross-cluster migration possible.
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The Longhorn layers capture block-level state and are what makes
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fast same-cluster restore possible. Both run; the customer keeps
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both. Decision 0002 (Standard tier ships always-on durable backup)
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is satisfied by the application layer alone; Longhorn-S3 is the
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velocity-and-redundancy upgrade.
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Both jobs target Longhorn's `default` group, which auto-includes
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every volume with no explicit recurring-job reference. So the
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schedule applies to existing AND future tenant PVCs without
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operator action per-instance.
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*/ -}}
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{{- if .Values.longhorn.enabled }}
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---
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apiVersion: longhorn.io/v1beta2
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kind: RecurringJob
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metadata:
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name: tenants-snapshot-hourly
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namespace: longhorn-system
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spec:
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cron: "0 * * * *"
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task: snapshot
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groups: [default]
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retain: 24
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concurrency: 2
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{{- if .Values.longhorn.defaultSettings.backupTarget }}
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---
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apiVersion: longhorn.io/v1beta2
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kind: RecurringJob
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metadata:
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name: tenants-backup-daily
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namespace: longhorn-system
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spec:
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cron: "0 3 * * *"
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task: backup
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groups: [default]
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retain: 7
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concurrency: 2
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{{- end }}
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{{- end }}
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