# SQLite clone Job for swarm-alpha
# Creates a snapshot of the prod neuron.db into swarm-alpha's PVC.
# This Job is created by swarm.sh at session start; it is NOT static.
# This file is the template — swarm.sh applies it via kubectl after substituting SESSION_ID.
#
# The Job mounts both the prod PVC (read-only) and the variant PVC (read-write).
# It uses a simple cp to snapshot the database before the variant MCP starts.
#
# NOTE: The prod MCP must be scaled down to 0 OR the Job must use SQLite's backup API
# (via sqlite3 .backup command) to ensure consistency. swarm.sh handles the hot-backup
# approach using the sqlite3 CLI, so the prod pod does NOT need to stop.
apiVersion: batch/v1
kind: Job
metadata:
  name: sqlite-clone-alpha
  namespace: swarm-alpha
  labels:
    app: swarm-clone
    variant: alpha
spec:
  ttlSecondsAfterFinished: 3600
  backoffLimit: 3
  template:
    metadata:
      labels:
        app: swarm-clone
        variant: alpha
    spec:
      restartPolicy: OnFailure
      securityContext:
        runAsNonRoot: false  # sqlite3 needs to run as root to access both PVCs
      containers:
        - name: sqlite-clone
          image: keinos/sqlite3:latest
          command:
            - sh
            - -c
            - |
              set -e
              echo "Starting SQLite hot-backup from prod to swarm-alpha..."
              # Use SQLite's .backup command for a consistent online backup
              sqlite3 /prod-data/neuron.db ".backup /variant-data/neuron.db"
              echo "Backup complete. Verifying..."
              sqlite3 /variant-data/neuron.db "PRAGMA integrity_check;"
              echo "SQLite clone complete for swarm-alpha."
          volumeMounts:
            - name: prod-data
              mountPath: /prod-data
              readOnly: true
            - name: variant-data
              mountPath: /variant-data
          resources:
            requests:
              cpu: 100m
              memory: 128Mi
            limits:
              cpu: 500m
              memory: 512Mi
      volumes:
        - name: prod-data
          persistentVolumeClaim:
            claimName: neuron-prod-data
            readOnly: true
        - name: variant-data
          persistentVolumeClaim:
            claimName: swarm-alpha-data